CN103215578B - Metal passivant prepared from diosorea cirrhosa residue extracting liquid - Google Patents
Metal passivant prepared from diosorea cirrhosa residue extracting liquid Download PDFInfo
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- CN103215578B CN103215578B CN201310101676.5A CN201310101676A CN103215578B CN 103215578 B CN103215578 B CN 103215578B CN 201310101676 A CN201310101676 A CN 201310101676A CN 103215578 B CN103215578 B CN 103215578B
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- dye yam
- diosorea
- cirrhosa
- yam slag
- extracting solution
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Abstract
The invention relates to a metal passivant prepared from diosorea cirrhosa residue extracting liquid. The metal passivant comprises the following components in parts by weight: 80 to 90 parts of diosorea cirrhosa extract, 2 to 5 parts of nitric acid, 5 to 10 parts of phosphoric acid salt and 2 to 5 part of accelerant, wherein the diosorea cirrhosa residue is waste residue after industrial utilization; the diosorea cirrhosa residue extracting liquid is a solution prepared by steps of mixing the diosorea cirrhosa residue and water according to a mass ratio of 1:(8-12) and heating at 40 to 60 DEG C for 2 to 4 hours; the accelerant is more than one of sodium molybdate, ammonium molybdate, zirconium oxide and zirconium nitrate; the phosphoric acid salt is more than one of disodium hydrogen phosphate, sodium dihydrogen phosphate and sodium phosphate; the passivant is adjusted by nitric acid and has a pH value of 3.0 to 6.0. Compared with the prior art, the metal passivant has the advantages of good passivation effect, high chemical stability of preparation and low cost.
Description
Technical field
The present invention relates to a kind of metal passivator.
Background technology
In metal surface treatment process, passive film is modal chemical conversion film, and its Main Function is the Corrosion Protection strengthening metal.Chromating agent is for a long time widely used with the antiseptic property of its excellence, but sexavalent chrome is poisonous, causes serious pollution after discharge to environment, and therefore chrome-free tanning agent technology is widely studied in recent years.Current chrome-free tanning agent mainly contains three classes, that is: inorganic salt passivator, organism passivator, Organic-inorganic composite passivator.Inorganic passivant mainly with molybdate, silicate, zirconates etc. for main representative; Organic passivates mainly with phytic acid, Weibull etc. for main representative, Organic-inorganic composite passivator is studied less at present, have silane coupling agent and molybdate series etc.; But also there are two deficiencies in the chrome-free tanning agent occurred at present, one is that passivation effect is poor, single inorganic or organic passivates passivation effect all can not meet industrial requirement, narrow range on probation, although the excellent but passivator less stable of Organic-inorganic composite passivator inactivating performance, and cost is high, be difficult to promote.
Therefore, the passivator finding a kind of inactivating performance good, with low cost is significant for metal finishing industry.
Summary of the invention
It is low that goal of the invention of the present invention is to provide a kind of good passivation effect, formulation chemist good stability, cost
utilize metal passivator prepared by dye yam slag extracting solution.
The passivator provided is with dye yam slag extracting solution for main component, by adding a small amount of inorganic accelerator, adopts composite mode to prepare.Metal passivator prepared by the present invention can be applicable to the various metals materials such as steel, galvanized steel, aluminium alloy, magnesium alloy.
The object of the invention is to be achieved through the following technical solutions:
With listed as parts by weight, comprising:
Dye yam slag extract 80-90;
Nitric acid 2-5;
Phosphoric acid salt 5-10;
Promotor 2-5;
Described dye yam slag is the waste residue after industrial utilization;
Described dye yam slag extracting solution heats at 40-60 DEG C the solution obtained for 2-4 hours after utilizing dye yam slag to mix according to mass ratio 1:8-12 with water;
Described promotor is more than one in Sodium orthomolybdate, ammonium molybdate, zirconium white, zirconium nitrate;
Described phosphoric acid salt is more than one in Sodium phosphate dibasic, SODIUM PHOSPHATE, MONOBASIC, sodium phosphate;
Described passivator nitric acid acid regulates, pH value 3.0 ~ 6.0.
Following beneficial effect can be reached after the present invention adopts such scheme:
1, inactivating performance is good.The present invention adopts dye yam slag extracting solution to be that main component prepares metal passivator, on the one hand owing to containing a large amount of Weibull in dye yam slag, and Weibull can react with metallic surface ion and forms the netted protective membrane of one deck, add a small amount of promotor on the other hand, promotor and Action of Metal Ions are filled up in reticular protection film space, make protective membrane finer and close, even, Corrosion Protection is stronger;
2, energy-conservation.Because the present invention adopts dye yam slag extracting solution to be main component, a large amount of surfactants is had in dye yam slag extracting solution, these surfactants effectively reduce the surface tension of solution, the passivating solution remaining in steel surface can be come off within the extremely short time, metal finishing Cleaning Process water can be reduced;
3, environmental protection.The present invention is with trade waste dye yam slag for metal passivator prepared by raw material, and belong to resource circulation utilization field, product is nontoxic, and the metal products after transpassivation meets European Union RoHS standard;
4, cost is low.This product take industrial waste as raw material production, and preparation technology is simple, and product cost is low, and economic benefit is very considerable.
Embodiment
Below in conjunction with specific examples, the present invention is described in further detail:
embodiment 1
At normal temperatures and pressures, take certain dye yam slag industrial waste, add pure water, join in process furnace and be heated to 50 DEG C after stirring according to the ratio of the 1:10 of mass percent, after keeping 3h, filtering separation, obtains dye yam slag extracting solution;
By the dye yam slag extracting solution of 80 weight parts, the nitric acid of 2 weight parts, 5-weight part phosphoric acid salt, 2 weight parts promotor mix and blend 5-10 minute, be prepared into metal passivator;
Described phosphoric acid salt is Sodium phosphate dibasic; Described promotor is Sodium orthomolybdate, and adjust ph is 4.0.
The passivator prepared, can adopt the mode of soaking or spray to carry out passivation to metal products.Metal products, after the process of this preparation, obtains good passivation layer.
embodiment 2
At normal temperatures and pressures, take certain dye yam slag industrial waste, add pure water, join in process furnace and be heated to 40 DEG C after stirring according to the ratio of the 1:8 of mass percent, after keeping 4h, filtering separation, obtains dye yam slag extracting solution;
By the dye yam slag extracting solution of 85 weight parts, the nitric acid of 5 weight parts, 5 weight parts phosphoric acid salt, 5 weight parts promotor mix and blend 5-10 minute, be prepared into metal passivator;
Described phosphoric acid salt is Sodium phosphate dibasic; Described promotor is water glass, and adjust ph is 3.0.
The passivator prepared, can adopt the mode of soaking or spray to carry out passivation to metal products.Metal products, after the process of this preparation, obtains good passivation layer.
embodiment 3
At normal temperatures and pressures, take certain dye yam slag industrial waste, add pure water, join in process furnace and be heated to 60 DEG C after stirring according to the ratio of the 1:12 of mass percent, after keeping 2h, filtering separation, obtains dye yam slag extracting solution;
By the dye yam slag extracting solution of 87 weight parts, the nitric acid of 4 weight parts, 5 weight parts phosphoric acid salt, 4 weight parts promotor mix and blend 10 minutes, be prepared into metal passivator;
Described phosphoric acid salt is Sodium phosphate dibasic; Described promotor is water glass, and adjust ph is 6.0.
The passivator prepared, can adopt the mode of soaking or spray to carry out passivation to metal products.Metal products, after the process of this preparation, obtains good passivation layer.
embodiment 4
At normal temperatures and pressures, take certain dye yam slag industrial waste, add pure water, join in process furnace and be heated to 50 DEG C after stirring according to the ratio of the 1:11 of mass percent, after keeping 3h, filtering separation, obtains dye yam slag extracting solution;
By the dye yam slag extracting solution of 90 weight parts, the nitric acid of 2 weight parts, 5 weight parts phosphoric acid salt, 3 weight parts promotor mix and blend 10 minutes, be prepared into metal passivator;
Described phosphoric acid salt is Sodium phosphate dibasic; Described promotor is water glass, and adjust ph is 5.0.
The passivator prepared, can adopt the mode of soaking or spray to carry out passivation to metal products.Metal products, after the process of this preparation, obtains good passivation layer.
Claims (1)
1. the metal passivator utilizing dye yam slag extracting solution to prepare, is characterized in that: with listed as parts by weight, comprising:
Dye yam slag extracting solution 80-90;
Nitric acid 2-5;
Phosphoric acid salt 5-10;
Promotor 2-5;
Described dye yam slag extracting solution heats at 40-60 DEG C the solution obtained for 2-4 hours after utilizing dye yam slag to mix according to mass ratio 1:8-12 with water;
Described promotor is more than one in Sodium orthomolybdate, ammonium molybdate, zirconium white, zirconium nitrate;
Described phosphoric acid salt is more than one in Sodium phosphate dibasic, SODIUM PHOSPHATE, MONOBASIC, sodium phosphate;
Described passivator nitric acid acid regulates, pH value 3.0 ~ 6.0.
2. a kind of metal passivator utilizing dye yam slag extracting solution to prepare according to claim 1, is characterized in that described dye yam slag is the waste residue after industrial utilization.
3. a kind of metal passivator utilizing dye yam slag extracting solution to prepare according to claim 1, is characterized in that: described dye yam slag extracting solution is heat at 50 DEG C the solution obtained for 3 hours after utilizing dye yam slag to mix according to mass percent 1:10 with water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310101676.5A CN103215578B (en) | 2013-03-27 | 2013-03-27 | Metal passivant prepared from diosorea cirrhosa residue extracting liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310101676.5A CN103215578B (en) | 2013-03-27 | 2013-03-27 | Metal passivant prepared from diosorea cirrhosa residue extracting liquid |
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| CN103215578A CN103215578A (en) | 2013-07-24 |
| CN103215578B true CN103215578B (en) | 2015-07-08 |
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| CN201310101676.5A Expired - Fee Related CN103215578B (en) | 2013-03-27 | 2013-03-27 | Metal passivant prepared from diosorea cirrhosa residue extracting liquid |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350802A (en) * | 2016-08-31 | 2017-01-25 | 常熟市强盛电力设备有限责任公司 | Hydroelectric generator rotor |
| CN106642697A (en) * | 2016-11-02 | 2017-05-10 | 江苏中科重工股份有限公司 | High-pressure heater for nuclear power plant |
| CN106756919A (en) * | 2016-11-27 | 2017-05-31 | 湖南金裕化工有限公司 | A kind of nanometer Phosphating Solution, preparation method and applications |
| CN106544660A (en) * | 2016-11-27 | 2017-03-29 | 湖南金裕化工有限公司 | Nanometer Phosphating Solution, preparation method and applications |
| CN106700063A (en) * | 2016-12-08 | 2017-05-24 | 佛山市中国地质大学研究院 | Modified dioscorea cirrhosa extract surfactant |
| CN106592213A (en) * | 2016-12-08 | 2017-04-26 | 佛山市中国地质大学研究院 | Modified tannin antibacterial finishing agent prepared from diosorea cirrhosa extract solution |
| CN108914168A (en) * | 2018-08-01 | 2018-11-30 | 苏州嘉迈德电子科技有限公司 | A kind of sheet metal surface treatment process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4225351A (en) * | 1979-06-04 | 1980-09-30 | Dart Industries Inc. | Non-chromate conversion coatings |
| CN1865502A (en) * | 2006-04-13 | 2006-11-22 | 中国地质大学（武汉） | Passivator for treatment of electrolytic manganese metal surface and process for preparing same |
| CN101775597A (en) * | 2009-12-28 | 2010-07-14 | 中国地质大学佛山研究院 | High temperature resistant metal passivator |
| CN102061464A (en) * | 2009-11-12 | 2011-05-18 | 中国地质大学佛山研究院 | Novel environmentally-friendly passivating agent |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20020669A (en) * | 2002-04-09 | 2003-10-10 | Outokumpu Oy | Procedure for preparing artificial patina and a patina paste |
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2013
- 2013-03-27 CN CN201310101676.5A patent/CN103215578B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4225351A (en) * | 1979-06-04 | 1980-09-30 | Dart Industries Inc. | Non-chromate conversion coatings |
| CN1865502A (en) * | 2006-04-13 | 2006-11-22 | 中国地质大学（武汉） | Passivator for treatment of electrolytic manganese metal surface and process for preparing same |
| CN102061464A (en) * | 2009-11-12 | 2011-05-18 | 中国地质大学佛山研究院 | Novel environmentally-friendly passivating agent |
| CN101775597A (en) * | 2009-12-28 | 2010-07-14 | 中国地质大学佛山研究院 | High temperature resistant metal passivator |
Non-Patent Citations (1)
| Title |
|---|
| 电解锰无铬钝化剂的研究;裴芳 等;《中国锰业》;20050531;第23卷(第2期);第29-31页 * |
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