CN86103274A - The alkaline cleansing agent of aluminium - Google Patents
The alkaline cleansing agent of aluminium Download PDFInfo
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- CN86103274A CN86103274A CN198686103274A CN86103274A CN86103274A CN 86103274 A CN86103274 A CN 86103274A CN 198686103274 A CN198686103274 A CN 198686103274A CN 86103274 A CN86103274 A CN 86103274A CN 86103274 A CN86103274 A CN 86103274A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/22—Light metals
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Abstract
A kind of composition body lotion that cleans usefulness is prepared its concentrate composition, and the usage of this alkaline clean aqueous solution bath.An alkali metal salt that contains ethylenediamine tetraacetic acid (EDTA) or nitrilo oxalic acid during this cleaning is bathed, inorganic carbonate an alkali metal salt, but the polyvalent chelate compound of tensio-active agent and aluminium, other inorganic salts and alkalimetal oxide, as needs, adjust to its pH and to be at least 11.0 composition.
Description
Present patent application is the part continuation application of the U.S. Patent Application Serial 733,546 of submission on May 13rd, 1985.
The present invention relates to the surface with alkaline compositions cleaning aluminium, specifically is to be used to have that extension that lubricating oil stains and pressure are pressed and the aluminium pot made.
The container of aluminium and aluminium alloy all is that general title extends compacting with the manufacturing of elongation moulding operation.These operations can produce the deposition of lubricating oil and form oil and stain on the surface of container.And on each face, deposit remaining aluminium powder bits pollution, more on the internal surface of container.
Container is being processed, before conversion coating and last health lacquer, must cleaned its surface, and, so just making and do not leave the stain that can disturb on the surface the further processing of container without water break.
The composition that industrial popular cleans this aluminum container is the aqueous sulfuric acid that contains hydrofluoric acid and one or more tensio-active agents.Such cleaning liquor is quite effective, and many advantages are arranged.But such acid clean mixture also has some shortcomings.For example, this composition can dissolve stainless steel and other iron alloy equipment that is used on the container cleaning line.And in useless cleaning is bathed with in the rinse water, have hydrofluoric acid and fluorochemical, in their disposal, there is environmental problem.
In order to overcome the problems referred to above, proposed the prescription of some alkaline cleaning solns, but their new serious problems own have also appearred in some basic solutions like this, so that reduced its industrial use.For example, once attempted to use the cleaning liquor of alkali metal hydroxide, but aluminum container was had big area and irregular corrosion, so that industrial unworkable.
Alkaline cleaning liquor to other was also tried out, and had obtained different successes.For example, U.S. Patent application No06/273,485 and its part continuation application No.06/383,289, the two is incorporated into herein as a reference, a kind of alkaline cleaning liquor that they are announced contains, 0.5 alkali metal hydroxide (as NaOH) to 3 grams per liters (g/l), a kind of an alkali metal salt (as the EDTA sodium salt) of 1 to 5g/l ethylenediamine tetraacetic acid (EDTA), 0.1 arrive at least a anionic of 10g/l, cationic, or the tensio-active agent of non-ionic type (for example a kind of anion surfactant of being made up of two parts, a part are the straight chain alcohols of the polyethoxylated of modification, and another part is the straight chained alkyl ester of Succinic Acid, the an alkali metal salt of 2-butoxy ethoxyacetic acid optionally is used in combination with it), also optionally contain 0.6 sequestering agent (for example sodium glucoheptonate) to the aluminium of 1.3g/l.Can see because this composition is an alkaline pH, so EDTA does not wherein play sequestering agent to aluminium.
Though the composition in the above-mentioned application is a good aluminium pot sanitising agent, on jar, in fact do not produce water break,, interrupt when production line will going wrong under the situation of for some time more than the several minutes.In case have been found that interruption, still serious color spot can appear in the jar without rinsing later, especially on the position that jar and jar are in contact with one another.Even because later coating, its outward appearance is also imperfect, so even the slightest spot also can make jar scrap.Clean operation to jar is the spray of doing the short period of time with cleaning liquor mostly, 10 to 60 seconds for example, but also can spray for 60 to 120 seconds sometimes, this also can cause color spot.Also find, when lubricating oil contamination amount is big, when for example surpassing about 1.5g/l, the effectiveness decline of cleaning liquor.
The alkalescence or the neutral cleaning compositions that are used for the metallic surface are disclosed in some patents or the disclosed application for patent, comprising:
U.S.3,975,215-Rodzewich. has transferred Amchem Products, Inc.
U.S.3,888,783-Rodzewich has transferred Amchem Products, Inc.
U.S.4,093,566, transferred the U.S..
Japan 53/149,130 has transferred Nihon Parkerizing.
Japan 51/149,830 has transferred Matsushita Elc.Ind.
Japan 50/067,726 has transferred Kurita Water Ind.
Japan 48/103,033 has transferred Nittan Co., Ltd.
The acid clean fluid composition of the cleaning aluminum surface of prior art is published in U.S.4, and 124,407-Binns, U.S.4,116,853-Binns, U.S.4,009,115-Binns, and U.S.3,969, among the 135-King.
Transferred the U.S.4 of Pennwalt, 477,290 have narrated a NaOH or KOH is the alkaline cleaning liquor of 6g/l as the aluminium of minimum quantity, and this is considerably beyond desirable alkali number, and can cause stain.The pH of above-mentioned solution is about 13.The chelating that disclosed (sequester) agent has Sorbitol Powder, glyconic acid and glucoheptonic acid.A prescription that disclosed is 0.6 to 2g/l tetrapotassium pyrophosphate, 0.5 KOH to 1.8g/l gluconic acid sodium salt and 0.5 to 1.8g/l, but wherein do not have EDTA or surfactant.
The invention provides to cleaning aluminium, particularly clean lubricated oil and other lipid, the various compositions and the whole bag of tricks of the aluminium pot that aluminium powder bits etc. stain.Composition be initial cleaning liquor and replenish after cleaning liquor, and the essence that is used for preparing the enriched material of these cleaning liquors.
Alkaline aluminium-cleaning compositions of the present invention is to be used to clean water-bath, and its pH must be 11.0 or higher, and 11.0 to 12.5 for well, optimum range is 11.5 to 12.3.Composition both can be that powdered also can be a concentrated aqueous solution.Powdered or aqueous solution form can singly divide packing, or packed with two or three minutes.
Each composition in the composition of the present invention comprises:
(a) ethylenediamine tetraacetic acid (EDTA) (EDTA) or an alkali metal salt of nitrilotriacetic acid(NTA) (NTA) or the combination of these salt, the amount in bath is 0.1 to the 8.0g/l(grams per liter), better be 0.3 to 5.0g/l, preferably 1.5 to 3.0g/l;
(b) at least a tensio-active agent, the amount in bath are 0.1 to 10g/l, preferably 0.2 arrive 3.0g/l; And
(c) at least a inorganic alkali metal phosphate, the amount in bath are 0.1 to 20g/l, better are 2.0 to 10.0g/l, preferably 4.0 arrive 8.0g/l.
Usually must bring up to the pH that cleaning is bathed is threshold value 11.0 at least, can select following a kind of pulvis or concentrated aqueous solution for this purpose for use:
(d) at least a alkali metal hydroxide, the amount in bath are to make pH more than 11, and best amount is to reach 5g/l.
Also available composition has:
(e) second kind of inorganic salt; Amount in bath (g/l) is half of amount that is present in the inorganic base metal phosphoric acid salt (composition C) in the bath, and/or
(f) sequestering agent of second kind of aluminium (except that composition a), its amount is 0 to 10g/l, better is 0.5 to 10g/l, preferably 0.6 to 1.3g/l.
Because composition of the present invention mainly is the aluminium pot that is used for the cleaner production streamline, its final form is the aqueous solution, the work in-process jar is immersed in wherein or with it comes hydro-peening, and wherein the amount of composition is to show with contained gram numerical table in every liter of whole clean aqueous solutions.According to the characteristic of various composition components, they separately can be added in the clean aqueous solution together, or do any combination and add again.
When each composition is to add fashionablely with dry type (powdery) basically, generally be compatible on physical property between them, though when using liquid surfactant, its is added separately may be favourable.Become the advantage of assignment system to be with the powder type, owing to do not transport under the moisture content situation having, weight is lighter.But, generally must be each powder and water premix to be easy to preparation.
One preferably in the embodiment, each composition all adds with the form of the aqueous solution.The advantage of using these solution is to be convenient to handle, and volume accumulating ability is arranged, and without premix.Preferably need at least with a kind of tensio-active agent come with other liquid parts branch, at this time as long as its has been added exactly separately.
Because the pH of cleaner bath is crucial, by extraneous factor, the pH of body lotion water for example, the pH that causes change must be adjusted.The most easy way is that the consumption that changes alkali metal hydroxide is adjusted pH.Therefore, alkali metal hydroxide generally preferably adds separately.So,, generally be that the packing of two minutes even three minutes is more favourable though single packing of dividing is feasible.
Except in operational instances, or have in addition beyond the explanation, what of used here all expression compositions, reaction conditions, or whole numerals of determinant parameter all are appreciated that to there being " approximately " this speech to be modified.
Though potassium and lithium salts also can use, the ethylenediamine tetraacetic acid (EDTA) or an alkali metal salt of nitrilotriacetic acid(NTA) be sodium salt preferably.The most handy two-, three-an alkali metal salt, when ethylenediamine tetraacetic acid (EDTA) with four-an alkali metal salt, also can be with the mixture of these salt.Single an alkali metal salt also can be used, but it is difficult for dissolving in enriched material of the present invention.
Say that in principle an alkali metal salt of ethylenediamine tetraacetic acid (EDTA) and nitrilotriacetic acid(NTA) can one mole uses one mole of ground mutual alternative.
Tensio-active agent can be an anionic, and is cationic or non-ionic type, and can use the combination of two kinds or kinds of surface promoting agent.The example that can be used for the tensio-active agent of cleaning soln of the present invention all is disclosed in United States Patent (USP) 4,116, and in 6 and 7 hurdles of 853-Binns, this part of this patent disclosure especially and here as a reference.
When enforcement was of the present invention, following tensio-active agent and/or its combination were preferred:
(A) Nonylphenoxy polyethoxyethanols (selling as trade mark with " Triton " N 100) by Rohm and Haas Co..
(B) a kind of polyethoxye adducts of modification (selling as trade mark with " Triton " CF 76) by Rohm and Haas Co..
(C) a kind of polyethoxylated alkyl oxide of non-ionic type (selling as trade mark with " Surfonic " LF 17) by Jefferson Chemical Co..
(D) a kind of tensio-active agent of anionic, it contains the straight chain alcohol and a Succinic Acid straight chained alkyl ester (being sold as trade mark with " Triton " DF-20 by Rohm and Haas Co.) of the polyethoxylated of two parts of modifications.
(E) a kind of non-ionic type, the straight chain alcohol of the ethoxylation of modification (selling as trade mark with " Plurafac " D-25) by BASF Wyandotte Corp..
(F) a kind of rosin acid derivative+15E.O.(of ethoxylation of non-ionic type is sold as trade mark with " Surfactant AR 150 " by Hercules Inc.).
(G) a kind of non-ionic type is about 90% polyoxypropylene and about 10% polyoxyethylated segmented copolymer (being sold as trade mark with " Pluronic " 31R1 by BASF Wyandotte Corp.).
(H) combination of a kind of (D) and 2-butoxy ethoxyacetic acid an alkali metal salt (preferably sodium salt, though potassium and lithium salts also can use).
Can use the various combinations of above-mentioned surfactant (A) to (H), wherein some is preferred.(A) and combination (C) be most preferred, secondly preferential is (A) and combination (B).The combination of other available has (C) and (F), and with (H).When any surfactant of application made up, the amount of every kind of surfactant preferably 0.1 arrived 5g/l in cleaning liquor.Also defoamer can be arranged in the cleaning liquor.
Above-mentioned preferred surfactants and combinations-of surfactants are according to its ability, particularly when the sequestering agent of aluminium also exists, the aluminium pot liquid that is cleaned decides it to be used for the preferred sequence of cleaning liquor to the contribution of prevent to fade (playing color spot) when soaking in the production line time out.Can believe, this be because tensio-active agent moistening jar the surface, thereby being enough to prevent forms meniscus between the jar, or be the size that reduces any this meniscus at least.But, according to the present invention, in cleaning liquor, add after the inorganic salt, no matter tensio-active agent has not, it seems that the color spot problem be excluded.
The sequestering agent that (but non-preferentially) that can select for use is added to second kind of aluminium in the cleaning liquor of the present invention can be any known compound of energy aluminium chelate in basic solution.The example of this compounds has sorbyl alcohol, glyconic acid basic metal (for example sodium) salt, and glucoheptonic acid an alkali metal salt (for example sodium salt), and tartrate an alkali metal salt (for example sodium salt), the best is Sorbitol Powder and glucoheptonic acid sodium salt.
Useful inorganic phosphate an alkali metal salt is a tripoly phosphate sodium STPP, trisodium phosphate, Sodium hexametaphosphate 99, Di-Sodium Phosphate, SODIUM PHOSPHATE, MONOBASIC and Sodium phosphate dibasic and corresponding potassium and lithium salts.
Can use any kind of is crucial phosphoric acid salt or its composition for the present invention.(a) the tripolyphosphate salt of selecting for use the order of these salt to be, (b) tetra-sodium salt, (c) hexa metaphosphoric acid salt or tertiary sodium phosphate and (d) all other salt.Though the sylvite class, even the lithium salts class can be used total first-selected sodium salt.
Can select for use second kind of inorganic salts to comprise yellow soda ash, SODIUMNITRATE, sodium sulfate, sodium aluminate and corresponding potassium or lithium salts class.
In the time need adjusting to desired scope to the pH of cleaning liquor, will use alkali metal hydroxide, they can be sodium hydroxide (caustic alkali), potassium hydroxide (potash), lithium hydroxide, or their mixture, sodium hydroxide are preferred.When using potassium hydroxide, then the consumption of other composition just can reduce, though also within the above-mentioned parameter scope.Produce color spot when preventing that service line from suspending, when operation, also need improve pH sometimes.Can splash into oxyhydroxide gradually, from a small amount, until jar is reached till the cleaning requirement for this reason.Because various compositions can not react before their clean aluminium surface mutually, can be together them, add separately or with the form of any combination.Therefore, preferably enriched material is combined into two kinds of packings, first kind of packing is all the components beyond removing alkali metal hydroxide, and second kind of packing is oxyhydroxide and some or all inorganic salt of selecting for use.With enriched material preparation cleaning liquor the time, water is added in first kind of packing material, the concentration that makes various compositions wherein is all within predetermined scope, and second kind of alkali metal hydroxide is packaged in before first kind of packing, be dissolved in the water afterwards or simultaneously, adjusting pH during as needs and make it to reach 11, better is 11 to 12.5, preferably 11.5 to 12.3.If wish in a concentrate packaging, just to have comprised all the components, then before measuring a certain deal, to or sway, or provide with enough little packaging vessel with its stirring, the amount in the entire container once just can be used up.
Working method of the present invention comprises that aluminum or aluminum alloy surface and clean aqueous solution of the present invention that needs are cleaned contact, and this can use any contact method as known in the art, and for example common spray or immersed method are best with spray.
The temperature of cleaning liquor will maintain within 80 to 150 °F (27 to 66 ℃), is preferably 90 to 140 °F (32 to 60 ℃), and the best is 100 to 130 °F (38 to 55 ℃).
According to the characteristics of aluminum products production line, the treatment time is variable, generally is 10 to 120 seconds, and the best was 10 to 60 seconds.
After cleaning step, then water carries out rinsing to remove sanitising agent to the aluminium surface, with the coating solution of already known processes or dried mat coat composition the aluminium surface is handled then.Also have, water is done pre-rinsing to the aluminium surface before cleaning, and it is favourable entering the cleaning bath for the minimizing dirt sometimes.
Do not having problems aspect useless cleaning liquor of safe disposal and the rinse water yet.For example,, handle useless cleaning liquor, be easy to make the ethylenediamine tetraacetic acid (EDTA) an alkali metal salt to be oxidized to environmental facies harmless material as hydrogen peroxide with superoxide in a small amount.Add dilute hydrochloric acid and be about 7 to pH, make the existence of any alkali metal hydroxide all become harmless.
Example
Following each example is not a limitation of the present invention, but explanation the present invention.
In whole examples below, alkaline hydrated oxide is NaOH, uses the constant ratio of 1g/l; EDTA is an EDTA sodium, with the constant ratio of 2.5g/l; And the sequestering agent of aluminium is a sodium glucoheptonate, and its amount is the ratio of 1g/l always.Inorganic salt and phosphatic amount change.In order to contrast, do some when test without any salt (seeing that example C-1 is to C-7).The tensio-active agent that is used for all these tests is (A) and 3: 5 parts combination (C), but its consumption changes.In a simultaneous test, tensio-active agent of no use, wherein inorganic salt are tripoly phosphate sodium STPPs.As long as this composition is when having sure effect, the amount of tripoly phosphate sodium STPP just need be increased in the enriched material that is mixed with can not consoluet degree, thereby needs its solution of adding separately.(seeing example 2).
Every kind of bath all is to operate in breadboard rotary scrubber, 145 (63 ℃) water prewashing 30 seconds, with drying up for 20 seconds, cleans for 15 seconds at 135 °F (57 ℃) again, blows for 30 seconds then.
The criterion of test
Each test is to carry out on 3004 alloy aluminium pots (with cover) of two parts, and they have the aluminium bits again and extend lubricated oils through extending and compacting.These jars are processed by the circulation group of 14 jars, so each jar keeps in touch with two other jars at least.
The mensuration of water break-free surface percentage ratio (%WFS) is as follows.Jar after handling and washing in bathing, is dipped in the saturated sodium sulfate that keeps 150 (66 ℃).After excessive water flushing (10 second), be placed in 300 ℃ the stove dry rapidly.On jar water break obviously where, that part of surface does not just have salt (being silver color); The place that does not have water break will topped one deck salt, is white in color.White can be measured with range estimation and optical scanner to the percentage ratio of silver color, or other method is measured.100% this surface of expression is complete white (promptly not having water break).This test is extremely strict, and scope of the present invention need reach 70% at least, is being good more than 80%, is being best more than 90%.The meaning of an acceptable test-results is, is water break free for a most realistic purpose jar surface on production line.
Color spot (fault) is normally brown, and can estimate or measure with suitable scanning device.This device is " a color spot scanning device ", and it measures jar catoptrical amount of fornix.Direct light in the chamber with optical fiber, the reflected light of jar enters photocell here.Catoptrical intensity is proportional to jar brightness on surface.Measure photronic output with millivoltmeter.With variable varistor light is adjusted to a certain standard, standard in this example is 300 millivolts.After jar washing and drying, just measure it to reflection of light.In addition, the body lotion that is used for treatment tank is poured in jar (concave surface), in a stove, heated 5 minutes then at 200 ℃.Use water rinse and drying then.Make second reflection measurement, its result and first are made comparisons.Poor (dSS) of the two just determined the amount of color spot.Can not draw the result of negative, negative test represents that color spot is arranged.The result who wishes most for antiplaque is zero or approaches zero that expression seldom or not changes.
Foaming is the problem that some cleanser compositions may occur.After aluminium pot was sprayed, remaining solution was collected in the bucket that hangs under the jar.In consecutive operation, be re-used as spray liquid then with residual solution.Excessive foaming (promptly overfilling from the top of bucket) may cause loss and the undesirable contamination of handling composition.Therefore wish very much foaming control to some extent.In order to test foaming, use single jar of washer.Pack into 4 liters and clean body lotion, temperature places 135 °F (57 ℃).Spray a certain fixed time with this body lotion, rise number scale record foaming degree with foamy.Spray after 10 minutes, allow foam attenuation 10 minutes, note degree at this moment again.
Example 1-29(comprises comparison example, represents with C) added tripoly phosphate sodium STPP as inorganic salt
Table 1
Table 1(is continuous) sex
*The TPP-tripoly phosphate sodium STPP overfilled at 2 minutes
# overfilled at 4 minutes
Example 30 comprises comparison example to 58(, represents with C) added various other inorganic salt
Table 2
Table 2(is continuous)
(a) overfilled in 6 minutes (b) overfilled in 2 minutes (c) overfilled in 2.25 minutes
(d) overfilled in 3.25 minutes (e) overfilled in 4 minutes (f) overfilled in 5 minutes
(g) overfilled in 3 minutes (h) overfilled in 3.5 minutes (i) overfilled in 9 minutes
The evaluation of test-results
As seen from Table 1, (from 8-29 number) all has good color spot test-results according to all examples of the present invention, and the example (C-1 is to C-7) that does not add the inorganic phosphate salt then has serious color spot.Also have, each %WBF when relatively a lower surface active dose is identical, when being added with inorganic phosphate, the result who draws is always quite a lot of, the best result (routine C-5) when not having inorganic phosphate for example, the tensio-active agent of its usefulness is that 8.75g/l and example 12 and 20 are done once more as can be seen, and the result who draws according to the present invention is always best.In fact, can use less tensio-active agent in the thing combined according to the invention, and part replaces cheap inorganic phosphate, this is very big advantage.Can be interesting observe, when not having inorganic phosphate, too much foaming is that to start from tensio-active agent be 6.25 these levels (routine C-3), lasts till 8.75 these levels (routine C-5) always.Can find out that significantly and in the contrast that needs the excessive foaming scope when using inorganic salt is just much narrow, as example 10,18,23 and 27 is indicated, and occur in amount of surfactant much lower the time.This just allows (when inorganic phosphate exists) to add more surfactant to overcome problem in the contingent special production.Compelling especially is example 29, has also obtained satisfied %WBF and dSS without tensio-active agent fully.Therefore, though use 1 to 3g/l amount desirable, tensio-active agent can omit fully.
It is of great use to the present invention that table 2 explanation has only some inorganic salt.Because considering them can be effectively, the whole salts in the table 2 have been selected for use.But, see that from table 2 markd comparison example (yellow soda ash, SODIUMNITRATE, sodium sulfate and sodium aluminate) has produced serious color spot.Reluctantly can with salt comprise tertiary sodium phosphate (being available when the big consumption) and Sodium hexametaphosphate 99 (it provides the result of ambiguity when the low consumption).Clearly, the color spot of tetrasodium pyrophosphate is the best as a result, but only is to be latter Geng Yi dissolving not as tripoly phosphate sodium STPP.It should be noted that the salt in each comparison example all produces satisfied result for frothing test, therefore can these saline admixtures used according to the invention, especially be blended on the cost when favourable when such.
Certainly, this professional people knows that whole compositions of the cleaning combination of initial formulation have desirable content, but these compositions had consumed according to different ratios afterwards.So, when replenishing cleaning liquor, add various compositions with the ratio that is different from initial soln, so just can keep initial components in proportions.
Above-mentioned each example has all directly proved just can be avoided when using composition of the present invention because when the cleaning product line of jar stopped, each jar all contacted the serious problems that cleaning liquor causes.Below each example be the explanation liquid cleaning composition of the present invention also can produce best cleaning performance.
Clean example
In order to illustrate that alkaline aluminium liquid cleaning composition of the present invention not only can exempt many problems, and can clean aluminium pot satisfactorily.The composition that discloses in the table 3 below is that preparation is used to clean the aluminium pot blank.Carry out 30 seconds of prewashing in the temperature of 120 (49 ℃), cleaned for 35 seconds at 120 °F (49 ℃) with following composition then, use rinsed with deionized water then at ambient temperature.Following all the components is in g/l.
Table 3
The TPP-tripoly phosphate sodium STPP, the EDTA-ethylenediamine tetraacetic acid (EDTA),
NTA-one nitrilotriacetic acid(NTA)
PH in comparison example C-59 is lower than low limit value 11 of the presently claimed invention.The consequence that causes is that the reflectance value of inside is too low, illustrates that jar cleans insufficiently.Reflexive baseline value is 169 for inside, is 329 for the outside.When the reflectivity of inside is higher than 235, just can't see trickle trace, illustrate that this jar is to be cleaned to such an extent that can accept.The internal reflection of comparison example C-59 is unacceptable fully.Underproof this special jar of base is from National Can Co., Piscataway, and New Jersey, U.S.A. obtains.It should be noted that acceptable internal reflection value is according to jar structure, every type of production unit, ambient water, cleaning condition etc. and change.Therefore only under same test conditions, could make comparisons with this numerical value to identical jar.The external reflection numerical value of all three examples all is acceptable.Second kind of used sequestering agent is sorb (sugar) alcohol.Used tensio-active agent is the combination of A and C, and the part by weight of A: C is 3: 5.Though in comparison example C-59, used the EDTA Na salt of 8g/l so that pH too low, had under the situation of sufficiently high pH this consumption also be enough to make cleaning to be bathed in ambient water and reach minimum pH value 11.EDTA Na salt and NTA Na salt all are 0.006 equimolar amounts.These two kinds of salt have all provided the acceptable result as can be seen.
Claims (30)
1, a kind of said body lotion is to be matrix with water from the aluminum products surface removing of moulding and the alkaline Clean-composition body lotion of dissolved aluminum break flour and lubricating oil lipid, and its pH is 11 at least, and ingredient comprises:
(a) an alkali metal salt of ethylenediamine tetraacetic acid (EDTA), an alkali metal salt of nitrilotriacetic acid(NTA) or their mixture, the amount in bath about 0.1 to about 8.0g/l;
(b) at least a tensio-active agent, amount about 0.1 to about 10g/l in bath;
(c) at least a inorganic phosphoric acid alkali metal salt, amount about 0.1 to about 20g/l in bath;
(d) at least a alkali metal hydroxide, the amount in select bathing will be enough to the pH of body lotion adjusted to and be at least 11;
(e) second kind of inorganic salt except that (c), select its amount in bath reach said mistake inorganic phosphate an alkali metal salt (c) in half of the amount of g/l;
(f) polyvalent chelate compound of second kind of aluminium except that (a), selecting its amount in bath is 0 to about 10g/l.
2, the bath in the claim 1, its pH adjusts to from 11 to about 12.5.
3, the bath in the claim 1, its pH adjusts to from 11.5 to about 12.3.
4, the bath in the claim 1, wherein (a) is sodium salt, and its amount in bath is about 0.3 to about 5.0g/l.
5, the bath in the claim 1, wherein (a) is sodium salt, and its amount in bath is about 1.5 to 3.0g/l.
6, the bath in the claim 1, wherein (b) is at least a anionic, tensio-active agent cationic or non-ionic type, and also its amount in bath is about 0.2 to about 3.0g/l.
7, the bath in the claim 1, wherein (c) is one of in following at least: two sodium polyphosphates, trisodium phosphate, Sodium hexametaphosphate 99, tertiary sodium phosphate, SODIUM PHOSPHATE, MONOBASIC, Sodium phosphate dibasic, or corresponding potassium or lithium salts; And its amount in bath is about 2.0 to about 10.0g/l.
8, the bath in the claim 1, wherein (c) is one of in following at least: tripoly phosphate sodium STPP, trisodium phosphate, Sodium hexametaphosphate 99, tertiary sodium phosphate, SODIUM PHOSPHATE, MONOBASIC, Sodium phosphate dibasic, or its corresponding potassium or lithium salts; And its amount in bath is about 4.0 to about 8.0g/l.
9, the bath in the claim 1, wherein (d) is NaOH, KOH or their mixture, and also its amount in bath reaches about 5.0g/l.
10, the bath in the claim 1, wherein (e) is yellow soda ash at least, SODIUMNITRATE, sodium sulfate, sodium aluminate, or one of its corresponding potassium or lithium salts, and be to be present in the bath.
11, the bath in the claim 1, wherein (f) is glyconic acid at least, glucoheptonic acid, or one of alkali metal salts of tartaric acid and sorbyl alcohol; And its amount in bath reaches about 10g/l.
12, the bath in the claim 1, wherein (f) is glyconic acid at least, glucoheptonic acid, or one of alkali metal salts of tartaric acid and sorbyl alcohol; And its amount in bath is about 0.5 to about 10g/l.
13, the bath in the claim 1, wherein (f) is glyconic acid at least, glucoheptonic acid, or one of alkali metal salts of tartaric acid and sorbyl alcohol; And its amount in bath is about 0.6 to 1.3g/l.
14, the bath in the claim 1, wherein:
(a) be sodium salt, and its amount in bath is about 0.3 to about 5.0g/l;
(b) be a kind of anionic at least, tensio-active agent cationic or non-ionic type, and also its amount in bath is about 0.2 to about 3.0g/l;
One of (c) be tripoly phosphate sodium STPP at least, trisodium phosphate, Sodium hexametaphosphate 99, tertiary sodium phosphate, SODIUM PHOSPHATE, MONOBASIC, Sodium phosphate dibasic, or in corresponding potassium or the lithium salts, and its amount in bath is about 2.0 to about 10.0g/l;
(d) be NaOH, KOH, or their mixture, and also its amount in bath reaches about 5.0g/l.
15, the bath in the claim 14, wherein:
(e) be yellow soda ash at least, SODIUMNITRATE, sodium sulfate, sodium aluminate, or one of its corresponding potassium or lithium salts, and be present in the bath;
(f) be glyconic acid at least, glucoheptonic acid, or one of alkali metal salts of tartaric acid and sorbyl alcohol, and also the amount in bath reaches 10g/l.
16, the bath in the claim 3, wherein:
(a) be sodium salt, and the amount in bath is about 1.5 to 3g/l;
(b) be a kind of anionic at least, or cationic, or the tensio-active agent of non-ionic type, and the amount in bath is about 0.2 to about 3.0g/l;
(c) be tripoly phosphate sodium STPP at least, trisodium phosphate, Sodium hexametaphosphate 99, tertiary sodium phosphate, SODIUM PHOSPHATE, MONOBASIC, Sodium phosphate dibasic, or a kind of in its corresponding potassium or the lithium salts, and also the amount in bath is about 4.0 to about 8.0g/l;
(d) be NaOH, KOH, or their mixture, and also the amount in bath reaches 5.0g/l.
17, the bath in the claim 16, wherein:
One of (e) be yellow soda ash at least, SODIUMNITRATE, sodium sulfate, sodium aluminate, or in corresponding potassium or the lithium salts, and be present in the bath;
(f) be glyconic acid at least, glucoheptonic acid, or one of alkali metal salts of tartaric acid and sorbyl alcohol, and also the amount in bath is about 0.5 to about 10g/l.
18, the bath in the claim 16, wherein:
(f) be glyconic acid at least, glucoheptonic acid, or one of alkali metal salts of tartaric acid and sorbyl alcohol, and also the amount in bath is about 0.5 to about 10g/l.
19, the bath in the claim 1, wherein (a) is sodium ethylene diamine tetracetate.
20, the bath in the claim 1, wherein (a) is sodium nitrilo triacetate.
21, a kind of concentrate composition of preparing alkaline cleaning composition water-bath, it mainly is grouped into by the described one-tenth of claim 1, and every kind amount is represented with parts by weight, the gram number of this composition during its numerical value equals every liter.
22, a kind of concentrate composition of preparing alkaline cleaning composition water-bath, it mainly is grouped into by the one-tenth described in the claim 14, and every kind amount is represented with parts by weight, the gram number of this composition during its numerical value equals every liter.
23, a kind of concentrate composition of preparing alkaline cleaning composition water-bath, it mainly is grouped into by the one-tenth described in the claim 15, and every kind amount is represented with the weight valence mumber, the gram number of this composition during its numerical value equals every liter.
24, a kind of concentrate composition of preparing alkaline cleaning composition water-bath, it mainly is grouped into by the one-tenth described in the claim 16, and every kind amount is represented with parts by weight, the gram number of this composition during its numerical value equals every liter.
25, a kind of concentrate composition of preparing alkaline cleaning composition water-bath, it mainly is grouped into by the described one-tenth of claim 17, and every kind amount is represented with parts by weight, the gram number of this composition during its numerical value equals every liter.
26, a kind of concentrate composition of preparing alkaline cleaning composition water-bath, it mainly is grouped into by the described one-tenth of claim 18, and every kind amount is represented with parts by weight, the gram number of this composition during its numerical value equals every liter.
27, a kind of removing from the metal products surface and the method for dissolved aluminum break flour and lubricating oil lipid, it comprises that the combination body lotion in the claim 1 that makes said surface and removing and dissolve significant quantity contacts.
28, the method in the claim 27, wherein said contact are carried out about 10 to about 120 seconds, and the temperature of said body lotion is about 27 ℃ to about 66 ℃.
29, the method in the claim 27, wherein said contact are that said surface was immersed in the said body lotion about 10 seconds to about 60 seconds, and the temperature of keeping said bath is at about 32 ℃ to about 60 ℃.
30, the method in the claim 27, wherein said contact are to spray said surface about 10 seconds to about 60 seconds with said body lotion, and the temperature of keeping said body lotion simultaneously is at about 32 ℃ to about 60 ℃.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73354685A | 1985-05-13 | 1985-05-13 | |
| US733,546 | 1985-05-13 | ||
| US85348186A | 1986-04-23 | 1986-04-23 | |
| US853,481 | 1986-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86103274A true CN86103274A (en) | 1987-02-04 |
Family
ID=27112587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198686103274A Pending CN86103274A (en) | 1985-05-13 | 1986-05-13 | The alkaline cleansing agent of aluminium |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0201864B1 (en) |
| CN (1) | CN86103274A (en) |
| AU (1) | AU582437B2 (en) |
| CA (1) | CA1291014C (en) |
| DE (1) | DE3684810D1 (en) |
| GR (1) | GR861252B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713073A (en) * | 2008-09-30 | 2010-05-26 | 中央精机株式会社 | Surface treating method for aluminum vehicle wheels and alkali etching liquid |
| CN102304721A (en) * | 2011-09-28 | 2012-01-04 | 广西大学 | Fast cleaning agent used for cleaning dirt on surface of aluminum electrolysis anode rod |
| CN105382674A (en) * | 2013-11-27 | 2016-03-09 | 天广消防股份有限公司 | Surface treatment process of aluminum product workpiece |
| CN105483728A (en) * | 2015-11-25 | 2016-04-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Long-life aluminum and alloy oil removing activating solution and application |
| CN105696005A (en) * | 2016-02-24 | 2016-06-22 | 苏州龙腾万里化工科技有限公司 | High-performance alkaline degreaser |
| CN105839120A (en) * | 2016-05-31 | 2016-08-10 | 无锡伊佩克科技有限公司 | Low-temperature stable degreasing agent and preparation method thereof |
| CN106987839A (en) * | 2017-03-29 | 2017-07-28 | 希玛石油制品（镇江）有限公司 | It is a kind of suitable for polishing agent of non-ferrous metal part and preparation method thereof |
| CN108486586A (en) * | 2015-03-30 | 2018-09-04 | 江苏理工学院 | Metal part surface cleaning method and water-based cleaning agent |
| CN112522036A (en) * | 2020-12-10 | 2021-03-19 | 深圳市恒纬祥科技有限公司 | Die-casting aluminum release agent cleaning agent |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4597888A (en) * | 1985-06-19 | 1986-07-01 | Parker Chemical Company | Cleaner for steel cans |
| JPH04187788A (en) * | 1990-11-20 | 1992-07-06 | Nippon Parkerizing Co Ltd | Method for washing aluminum or aluminum alloy |
| JP5001359B2 (en) * | 2006-06-06 | 2012-08-15 | ハイドロ アルミニウム ドイチュラント ゲー エム ベー ハー | How to clean aluminum workpieces |
| CN117230312B (en) * | 2023-11-13 | 2024-03-19 | 帕瓦(长沙)新能源科技有限公司 | Alkaline leaching process of waste lithium ion battery anode material |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093566A (en) * | 1976-12-27 | 1978-06-06 | The United States Of America As Represented By The Secretary Of The Army | Phosphate-free spray cleaner for metals |
| US4048121A (en) * | 1977-01-24 | 1977-09-13 | Fremont Industries, Inc. | Low temperature metal cleaning composition |
| GB2079775A (en) * | 1980-07-02 | 1982-01-27 | Pyrene Chemical Services Ltd | Cleaning composition and method |
| JPS581078A (en) * | 1981-06-15 | 1983-01-06 | アムケム・プロダクツ・インコ−ポレイテツド | Aluminum surface detergent alkaline solution |
| US4477290A (en) * | 1983-01-10 | 1984-10-16 | Pennwalt Corporation | Cleaning and etching process for aluminum containers |
| JPS6096773A (en) * | 1983-10-31 | 1985-05-30 | Nippon Parkerizing Co Ltd | Pretreatment in chemical formation of aluminum alloy |
| US4599116A (en) * | 1984-11-08 | 1986-07-08 | Parker Chemical Company | Alkaline cleaning process |
-
1986
- 1986-05-07 EP EP19860106255 patent/EP0201864B1/en not_active Expired - Lifetime
- 1986-05-07 DE DE8686106255T patent/DE3684810D1/en not_active Expired - Fee Related
- 1986-05-12 AU AU57343/86A patent/AU582437B2/en not_active Ceased
- 1986-05-12 CA CA 508896 patent/CA1291014C/en not_active Expired
- 1986-05-13 CN CN198686103274A patent/CN86103274A/en active Pending
- 1986-05-13 GR GR861252A patent/GR861252B/en unknown
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713073A (en) * | 2008-09-30 | 2010-05-26 | 中央精机株式会社 | Surface treating method for aluminum vehicle wheels and alkali etching liquid |
| CN102304721A (en) * | 2011-09-28 | 2012-01-04 | 广西大学 | Fast cleaning agent used for cleaning dirt on surface of aluminum electrolysis anode rod |
| CN102304721B (en) * | 2011-09-28 | 2013-05-15 | 广西大学 | Fast cleaning agent used for cleaning dirt on surface of aluminum electrolysis anode rod |
| CN105382674A (en) * | 2013-11-27 | 2016-03-09 | 天广消防股份有限公司 | Surface treatment process of aluminum product workpiece |
| CN108486586A (en) * | 2015-03-30 | 2018-09-04 | 江苏理工学院 | Metal part surface cleaning method and water-based cleaning agent |
| CN108796515A (en) * | 2015-03-30 | 2018-11-13 | 江苏理工学院 | Method for cleaning surface of metal part and water-based cleaning agent adopted by same |
| CN105483728B (en) * | 2015-11-25 | 2018-11-02 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of long-life aluminium and its alloy oil removing activated solution and application |
| CN105483728A (en) * | 2015-11-25 | 2016-04-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Long-life aluminum and alloy oil removing activating solution and application |
| CN105696005A (en) * | 2016-02-24 | 2016-06-22 | 苏州龙腾万里化工科技有限公司 | High-performance alkaline degreaser |
| CN105839120A (en) * | 2016-05-31 | 2016-08-10 | 无锡伊佩克科技有限公司 | Low-temperature stable degreasing agent and preparation method thereof |
| CN106987839A (en) * | 2017-03-29 | 2017-07-28 | 希玛石油制品（镇江）有限公司 | It is a kind of suitable for polishing agent of non-ferrous metal part and preparation method thereof |
| CN106987839B (en) * | 2017-03-29 | 2019-03-29 | 希玛石油制品（镇江）有限公司 | A kind of polishing agent and preparation method thereof suitable for non-ferrous metal part |
| CN112522036A (en) * | 2020-12-10 | 2021-03-19 | 深圳市恒纬祥科技有限公司 | Die-casting aluminum release agent cleaning agent |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0201864A3 (en) | 1988-08-10 |
| GR861252B (en) | 1986-09-10 |
| DE3684810D1 (en) | 1992-05-21 |
| AU582437B2 (en) | 1989-03-23 |
| EP0201864B1 (en) | 1992-04-15 |
| CA1291014C (en) | 1991-10-22 |
| AU5734386A (en) | 1986-11-20 |
| EP0201864A2 (en) | 1986-11-20 |
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