CN106958024A - A kind of environment-friendly type derusting phosphating agent and its preparation and application - Google Patents
A kind of environment-friendly type derusting phosphating agent and its preparation and application Download PDFInfo
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- CN106958024A CN106958024A CN201710354420.3A CN201710354420A CN106958024A CN 106958024 A CN106958024 A CN 106958024A CN 201710354420 A CN201710354420 A CN 201710354420A CN 106958024 A CN106958024 A CN 106958024A
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- China
- Prior art keywords
- environment
- friendly type
- derusting phosphating
- phosphating agent
- type derusting
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Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 83
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 238000005260 corrosion Methods 0.000 claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 15
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 15
- 239000010452 phosphate Substances 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 14
- 239000004094 surface-active agent Substances 0.000 claims abstract description 9
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 8
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 239000003112 inhibitor Substances 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims description 19
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 19
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 18
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- FJLUATLTXUNBOT-UHFFFAOYSA-N 1-Hexadecylamine Chemical compound CCCCCCCCCCCCCCCCN FJLUATLTXUNBOT-UHFFFAOYSA-N 0.000 claims description 12
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 12
- 229920000570 polyether Polymers 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 10
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 10
- 238000007654 immersion Methods 0.000 claims description 10
- 229960004011 methenamine Drugs 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 10
- 235000010333 potassium nitrate Nutrition 0.000 claims description 9
- 239000004323 potassium nitrate Substances 0.000 claims description 9
- MFXMOUUKFMDYLM-UHFFFAOYSA-L zinc;dihydrogen phosphate Chemical compound [Zn+2].OP(O)([O-])=O.OP(O)([O-])=O MFXMOUUKFMDYLM-UHFFFAOYSA-L 0.000 claims description 8
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 6
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims description 3
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 3
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 3
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 3
- 235000010344 sodium nitrate Nutrition 0.000 claims description 3
- 239000004317 sodium nitrate Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims 1
- 150000001335 aliphatic alkanes Chemical group 0.000 claims 1
- 239000004202 carbamide Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 8
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 239000002552 dosage form Substances 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 10
- 230000001680 brushing effect Effects 0.000 description 9
- 239000007789 gas Substances 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 229910052748 manganese Inorganic materials 0.000 description 6
- 239000011572 manganese Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 3
- 230000009965 odorless effect Effects 0.000 description 3
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 3
- 229920000053 polysorbate 80 Polymers 0.000 description 3
- 150000005208 1,4-dihydroxybenzenes Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
It is an object of the invention to solve existing environment-friendly type derusting phosphating dosage form into phosphating coat have loose and not uniform enough the problem of there is provided a kind of environment-friendly type derusting phosphating agent and its preparation and application, belong to derusting anti-corrosive technical field.The agent of environment-friendly type derusting phosphating is constituted according to following chemical composition mass percent, and total amount is 100%：Phosphoric acid：35~55%；Dihydric phosphate：3~10%；Nitrate：1~10%；Composite corrosion inhibitor：0.2~2%；Surfactant：0.5~3%；Water：Surplus.The bonderite is environmentally friendly, and thoroughly, phosphating coat has the adhesive force of porous and uniformity, enhancing coating and ground to derusting phosphating, so as to improve the corrosion resistance of steel, is adapted to apply in steel surface derusting phosphating.
Description
Technical field
The invention belongs to derusting anti-corrosive technical field, the more particularly to a kind of agent of environment-friendly type derusting phosphating and its preparation and use
Method.
Background technology
Steel surface being molded, roll, before application and plastic-spraying, it is necessary to steel surface is eliminated rust and phosphatization
Pretreatment, it is therefore an objective to increase steel surface lubricity, is road work after ensureing while improving the rust-preventing characteristic and adhesive force of steel surface
The key of sequence quality.Therefore, derusting phosphating agent is mainly used in the derusting phosphating processing of steel surface, available for steel profile, vapour
With the pre-treatment rust cleaning on the production lines such as sheet material, wire rod tubing, antirust, phosphating process section.Current derusting phosphating agent is primarily present
Technical recipe is complicated, is unsuitable for producing in enormous quantities, the problems such as waste sludge discharge is more, while the phosphating coat formed is loose and thickness
Uneven, it is impossible to meet the corrosion proof requirement of workpiece, its production cost is also higher, does not possess the market competitiveness.
Publication No. CN1546728A Chinese invention patent application discloses a kind of three-in-one cleaning derusting phosphating of normal temperature
Agent and preparation method thereof, technical scheme advantage is：It can at normal temperatures use, clean, eliminate rust and the step of phosphatization one
Complete, almost without waste sludge discharge, the phosphatization deadline is less than 10 minutes, and corrosivity is less than 1 grade, product corrosion resistance
Energy is good, 360 hours corrosion-free, the rust cleaning area (m in southern room air of the product after phosphatization2/ Kg) it is more than 4, repeating makes
With often, the matching with various coating is good, low in raw material price, it is easy to make, low manufacture cost；But there is also ask
Topic, hydroquinones is contained in the phosphatization agent prescription, and hydroquinones is high poison article, and danger is easily caused to user when actually used
Evil, should avoid using.
Therefore, develop the environment-friendly type derusting phosphating agent for being adapted to industrially use turns into the popular class of area research person
Topic.The A of Chinese invention patent application publication number CN 104099594 disclose a kind of cleaning derusting phosphating agent, cleaning rust cleaning phosphorus
Agent can be used at normal temperatures, and phosphatization speed is fast, and phosphatization effect is good, non-corrosiveness, almost without waste sludge discharge, cleaning, rust cleaning
Once completed with phosphatization.But during derusting phosphating is cleaned, there is loose and not uniform enough, shadow in the phosphating coat formed
The adhesive force of coating and ground is rung, and then influences the corrosion resistance of steel.
The content of the invention
It is an object of the invention to solve existing environment-friendly type derusting phosphating dosage form into phosphating coat exist it is loose and not equal enough
Even the problem of, there is provided a kind of environment-friendly type derusting phosphating agent and its preparation and application.The bonderite is environmentally friendly, rust cleaning
Thoroughly, phosphating coat has the adhesive force of porous and uniformity, enhancing coating and ground to phosphatization, so as to improve the anti-corrosion of steel
Property.
A kind of environment-friendly type derusting phosphating agent, is constituted, total amount is 100% according to following chemical composition mass percent：
Phosphoric acid：35~55%；
Dihydric phosphate：3~10%；
Nitrate：1~10%；
Composite corrosion inhibitor：0.2~2%；
Surfactant：0.5~3%；
Water：Surplus；
Wherein, the dihydric phosphate is in phosphate dihydrogen manganese, aluminium dihydrogen phosphate, potassium dihydrogen phosphate, zinc dihydrogen phosphate
One or more of mixing；
The nitrate is one or more of mixing in ferric nitrate, zinc nitrate, sodium nitrate, potassium nitrate；
The composite corrosion inhibitor is any two in thiocarbamide, methenamine, cetylamine or three kinds of mixing；
The surfactant is that SAS (SAS-60) and full mixture block polyether class non-ionic surface are lived
The mixture of property agent；
The full mixture block polyether class nonionic surfactant include block polyether L31, L35, L44, L45,
L61, L62, L63, L64, L65, L68, F38, F68 etc..
The preparation method of above-mentioned environment-friendly type derusting phosphating agent, it is specific as follows：
Feeding is matched by the chemical composition of above-mentioned environment-friendly type derusting phosphating agent, by nitrate, dihydric phosphate, compound slow corrosion
Agent is added to the water, and is stirred under normal temperature to being completely dissolved, and then adds phosphoric acid and surfactant, can be obtained after stirring
To environment-friendly type derusting phosphating agent.
Application method of the above-mentioned environment-friendly type derusting phosphating agent in steel surface derusting phosphating, it is specific as follows：
Steel system to be cleaned is handled with the treatment fluid containing 50~250Kg of environment-friendly type derusting phosphating agent in solution per ton
Product, processing mode has immersion, brushing and spray, and treatment temperature is 10~50 DEG C, and treatment time is 15~40min.
The steel product handled through environment-friendly type derusting phosphating agent of the present invention, the phosphatization deadline is less than 40 points at 10~50 DEG C
Clock, film forming is uniform, and corrosivity is less than 1 grade, rust cleaning area (m2/ Kg) it is more than 4；Its phosphating coat rust-proof life：It is room temperature, wet
Degree is not more than under 70%, corrosion-free gas condition, corrosion-free in 60 days；Almost without waste sludge discharge.
The present invention principle be：
Derusting phosphating agent can make metal surface form one layer of good diaphragm of attachment, and the phosphating coat grey generally only has
Several microns (2-20 μm), dense uniform can greatly enhance coating and substrate adhesion, and thicker film layer can also strengthen rust-preventing characteristic
Energy；Meanwhile, the porous that phosphating coat has makes sealer, coating etc. to penetrate among these holes, close with phosphating coat
With reference to the adhesive force of raising sealer, coating etc..Therefore, by parkerized metal works, can provide cleaning, it is uniform,
The surface of without grease and non-corroding.
Compared with prior art, advantage of the invention is that：
1st, the present invention is using the composite corrosion inhibitor mixed by thiocarbamide, methenamine and cetylamine, the compound slow corrosion
Agent has synergistic corrosion inhibition, can effectively prevent the generation of the rotten and hydrogen embrittlement excessively of workpiece.
2nd, during derusting phosphating, the surfactant that uses of the present invention make derusting phosphating agent have very strong wetting,
Penetration, it is easy to soak rust surface, penetrates into the interface of rust and workpiece.
3rd, derusting phosphating agent of the invention can be recycled, and almost without waste sludge discharge, and raw material is nontoxic production
Product, will not have undesirable effect to environment.
4th, derusting phosphating agent of the invention is not only with derusting phosphating is thorough, speed is fast, production cost is low, friendly to environment
It is good, and the phosphating coat formed has porous and uniformity, can strengthen the adhesive force of coating and ground, improves steel
Corrosion resistance.
Brief description of the drawings
The phosphating coat picture of steel plate after Fig. 1, the derusting phosphating agent processing of embodiment 2；
The phosphating coat picture of steel plate after Fig. 2, the derusting phosphating agent processing of comparative example 1；
The phosphating coat picture of steel plate after Fig. 3, the derusting phosphating agent processing of comparative example 2；
The phosphating coat picture of steel plate after Fig. 4, the derusting phosphating agent processing of comparative example 3；
The phosphating coat picture of steel plate after Fig. 5, the derusting phosphating agent processing of comparative example 4；
The phosphating coat picture of steel plate after Fig. 6, the derusting phosphating agent processing of comparative example 5.
Embodiment
The water of environment-friendly type derusting phosphating agent is deionized water in the embodiment of the present invention, and reagent is purchased in market, block polyether
F38, F68, L61 and L64 are purchased from Nantong Chen Run Chemical Co., Ltd.s.
Embodiment 1
A kind of environment-friendly type derusting phosphating agent, its chemical composition is constituted by following mass percent：
Phosphoric acid：55%；
Aluminium dihydrogen phosphate：3%；
Ferric nitrate：3%；
Sodium nitrate：3%；
Thiocarbamide：0.5%；
Cetylamine：1.5%
SAS：0.2%；
Block polyether F68：0.3%；
Water：33.5%.
The preparation method of above-mentioned environment-friendly type derusting phosphating agent, it is specific as follows：
Feeding is matched by the chemical composition of above-mentioned environment-friendly type derusting phosphating agent, by nitrate, dihydric phosphate, compound slow corrosion
Agent thiocarbamide and cetylamine are added to the water, and are stirred under normal temperature to being completely dissolved, and then add phosphoric acid and the secondary alkyl of surfactant
Sodium sulfonate and block polyether F68, can obtain environment-friendly type derusting phosphating agent after stirring.
Application process of the above-mentioned environment-friendly type derusting phosphating agent in steel surface derusting phosphating, it is specific as follows：
Steel product to be cleaned, place are handled with the treatment fluid containing environment-friendly type derusting phosphating agent 250Kg in solution per ton
Reason mode has immersion, brushing and spray, and treatment temperature is 50 DEG C, and treatment time is 20min.
After testing, above-mentioned derusting phosphating agent is colorless and odorless clear homogeneous thick liquid, pH 1.0-2.0；It is under normal temperature
Liquid and stable in properties；The phosphatization deadline is less than 30 minutes, and film forming is uniform, and corrosivity is less than 1 grade, and eliminate rust area
(m2/ Kg) it is more than 4；Its phosphating coat rust-proof life：Room epidemic disaster is not more than under 70%, corrosion-free gas condition, without corruption in 60 days
Erosion.
Embodiment 2
A kind of environment-friendly type derusting phosphating agent, its chemical composition is constituted by following mass percent：
Phosphoric acid：45%；
Phosphate dihydrogen manganese：2%；
Zinc dihydrogen phosphate：4%；
Zinc nitrate：0.2%；
Potassium nitrate：0.8%；
Thiocarbamide：0.3%；
Cetylamine：0.3%；
Methenamine：0.4%；
SAS：1.5%；
Block polyether L64：1.5%；
Water：44%.
Application process of the above-mentioned environment-friendly type derusting phosphating agent in steel surface derusting phosphating, it is specific as follows：
Steel product to be cleaned, place are handled with the treatment fluid containing environment-friendly type derusting phosphating agent 150Kg in solution per ton
Reason mode has immersion, brushing and spray, and treatment temperature is 30 DEG C, and treatment time is 15min.
After testing, above-mentioned derusting phosphating agent is colorless and odorless clear homogeneous thick liquid, pH 1.0-2.0；It is under normal temperature
Liquid and stable in properties；The phosphatization deadline is less than 15 minutes at 30 DEG C, and film forming is uniform (see Fig. 1), and corrosivity is small
In 1 grade, eliminate rust area (m2/ Kg) it is more than 4；Its phosphating coat rust-proof life：Room epidemic disaster is not more than 70%, corrosion-free gas condition
Under, it is corrosion-free in 60 days.
Comparative example 1
A kind of chemical composition of environment-friendly type derusting phosphating agent is constituted by following mass percent：
Phosphoric acid：45%；
Phosphate dihydrogen manganese：2%；
Zinc dihydrogen phosphate：4%；
Zinc nitrate：0.2%；
Potassium nitrate：0.8%；
Thiocarbamide：0.3%；
Cetylamine：0.3%；
Methenamine：0.4%；
SAS：3%；
Water：44%.
Application process of the above-mentioned environment-friendly type derusting phosphating agent in steel surface derusting phosphating, it is specific as follows：
Steel product to be cleaned, place are handled with the treatment fluid containing environment-friendly type derusting phosphating agent 150Kg in solution per ton
Reason mode has immersion, brushing and spray, and treatment temperature is 30 DEG C, and treatment time is 15min.
After testing, the phosphatization deadline is more than 15 minutes at 30 DEG C of above-mentioned derusting phosphating agent, and film forming is uneven (see figure
2), corrosivity is less than 1 grade, rust cleaning area (m2/ Kg) 2~3；Its phosphating coat rust-proof life：Room epidemic disaster is not more than
70%th, it is corrosion-free in 30 days under corrosion-free gas condition.
Comparative example 2
A kind of chemical composition of environment-friendly type derusting phosphating agent is constituted by following mass percent：
Phosphoric acid：45%；
Phosphate dihydrogen manganese：2%；
Zinc dihydrogen phosphate：4%；
Zinc nitrate：0.2%；
Potassium nitrate：0.8%；
Thiocarbamide：0.3%；
Cetylamine：0.3%；
Methenamine：0.4%；
Block polyether L64：3%；
Water：44%.
Application process of the above-mentioned environment-friendly type derusting phosphating agent in steel surface derusting phosphating, it is specific as follows：
Steel product to be cleaned, place are handled with the treatment fluid containing environment-friendly type derusting phosphating agent 150Kg in solution per ton
Reason mode has immersion, brushing and spray, and treatment temperature is 30 DEG C, and treatment time is 15min.
After testing, the phosphatization deadline is more than 15 minutes at 30 DEG C of above-mentioned derusting phosphating agent, and film forming is uneven (see figure
3), corrosivity is less than 2 grades, rust cleaning area (m2/ Kg) 2~3；Its phosphating coat rust-proof life：Room epidemic disaster is not more than
70%th, it is corrosion-free in 15 days under corrosion-free gas condition.
Comparative example 3
A kind of chemical composition of environment-friendly type derusting phosphating agent is constituted by following mass percent：
Phosphoric acid：45%；
Phosphate dihydrogen manganese：2%；
Zinc dihydrogen phosphate：4%；
Zinc nitrate：0.2%；
Potassium nitrate：0.8%；
Thiocarbamide：0.3%；
Cetylamine：0.3%；
Methenamine：0.4%；
Tween 80：3%；
Water：44%.
Application process of the above-mentioned environment-friendly type derusting phosphating agent in steel surface derusting phosphating, it is specific as follows：
Steel product to be cleaned, place are handled with the treatment fluid containing environment-friendly type derusting phosphating agent 150Kg in solution per ton
Reason mode has immersion, brushing and spray, and treatment temperature is 30 DEG C, and treatment time is 15min.
After testing, the phosphatization deadline is more than 15 minutes at 30 DEG C of above-mentioned derusting phosphating agent, and film forming is uneven (see figure
4), corrosivity is less than 1 grade, rust cleaning area (m2/ Kg) 2~3；Its phosphating coat rust-proof life：Room epidemic disaster is not more than
70%th, it is corrosion-free in 15 days under corrosion-free gas condition.
Comparative example 4
A kind of chemical composition of environment-friendly type derusting phosphating agent is constituted by following mass percent：
Phosphoric acid：45%；
Phosphate dihydrogen manganese：2%；
Zinc dihydrogen phosphate：4%；
Zinc nitrate：0.2%；
Potassium nitrate：0.8%；
Thiocarbamide：0.3%；
Cetylamine：0.3%；
Methenamine：0.4%；
Block polyether L64：1.5%；
Tween 80：1.5%；
Water：44%.
Application process of the above-mentioned environment-friendly type derusting phosphating agent in steel surface derusting phosphating, it is specific as follows：
Steel product to be cleaned, place are handled with the treatment fluid containing environment-friendly type derusting phosphating agent 150Kg in solution per ton
Reason mode has immersion, brushing and spray, and treatment temperature is 30 DEG C, and treatment time is 15min.
After testing, the phosphatization deadline is more than 15 minutes at 30 DEG C of above-mentioned derusting phosphating agent, and film forming is uneven (see figure
5), corrosivity is less than 2 grades, rust cleaning area (m2/ Kg) 2~3；Its phosphating coat rust-proof life：Room epidemic disaster is not more than
70%th, it is corrosion-free in 30 days under corrosion-free gas condition.
Comparative example 5
A kind of chemical composition of environment-friendly type derusting phosphating agent is constituted by following mass percent：
Phosphoric acid：45%；
Phosphate dihydrogen manganese：2%；
Zinc dihydrogen phosphate：4%；
Zinc nitrate：0.2%；
Potassium nitrate：0.8%；
Thiocarbamide：0.3%；
Cetylamine：0.3%；
Methenamine：0.4%；
SAS：1.5%；
Tween 80：1.5%；
Water：44%.
Application process of the above-mentioned environment-friendly type derusting phosphating agent in steel surface derusting phosphating, it is specific as follows：
Steel product to be cleaned, place are handled with the treatment fluid containing environment-friendly type derusting phosphating agent 150Kg in solution per ton
Reason mode has immersion, brushing and spray, and treatment temperature is 30 DEG C, and treatment time is 15min.
After testing, the phosphatization deadline is more than 15 minutes at 30 DEG C of above-mentioned derusting phosphating agent, and film forming is uneven (see figure
6), corrosivity is less than 2 grades, rust cleaning area (m2/ Kg) it is less than 2~3；Its phosphating coat rust-proof life：Room epidemic disaster is little
It is corrosion-free in 30 days under 70%, corrosion-free gas condition.
Embodiment 3
A kind of chemical composition of environment-friendly type derusting phosphating agent is constituted by following mass percent：
Phosphoric acid：35%；
Potassium dihydrogen phosphate：10%；
Potassium nitrate：10%；
Cetylamine：0.1%；
Methenamine：0.1%；
SAS：0.5%；
Block polyether L61：0.5%；
Block polyether F38：0.5%；
Water：43.3%.
Application process of the above-mentioned environment-friendly type derusting phosphating agent in steel surface derusting phosphating, it is specific as follows：
Steel product to be cleaned, place are handled with the treatment fluid containing environment-friendly type derusting phosphating agent 150Kg in solution per ton
Reason mode has immersion, brushing and spray, and treatment temperature is 10 DEG C, and treatment time is 40min.
After testing, above-mentioned derusting phosphating agent is colorless and odorless clear homogeneous thick liquid, pH 1.0-2.0；It is under normal temperature
Liquid and stable in properties；15 DEG C of phosphatization deadlines are less than 35 minutes, and film forming is uniform, and corrosivity is less than 1 grade, rust cleaning
Area (m2/ Kg) it is more than 4；Its phosphating coat rust-proof life：Room epidemic disaster is not more than under 70%, corrosion-free gas condition, nothing in 60 days
Corrosion.
Claims (9)
1. a kind of environment-friendly type derusting phosphating agent, it is characterised in that constituted according to following chemical composition mass percent, total amount is
100%：
Phosphoric acid：35~55%；
Dihydric phosphate：3~10%；
Nitrate：1~10%；
Composite corrosion inhibitor：0.2~2%；
Surfactant：0.5~3%；
Water：Surplus.
2. a kind of environment-friendly type derusting phosphating agent according to claim 1, it is characterised in that the dihydric phosphate is phosphoric acid
One or more of mixing in dihydro manganese, aluminium dihydrogen phosphate, potassium dihydrogen phosphate, zinc dihydrogen phosphate.
3. a kind of environment-friendly type derusting phosphating agent according to claim 1, it is characterised in that the nitrate be ferric nitrate,
One or more of mixing in zinc nitrate, sodium nitrate, potassium nitrate.
4. a kind of environment-friendly type derusting phosphating agent according to claim 1, it is characterised in that the composite corrosion inhibitor is sulphur
The mixing of any two or three kinds in urea, methenamine, cetylamine.
5. a kind of environment-friendly type derusting phosphating agent according to claim 1, it is characterised in that the surfactant is secondary alkane
The mixture of base sodium sulfonate and full mixture block polyether class nonionic surfactant.
6. the preparation method of a kind of environment-friendly type derusting phosphating agent described in Claims 1 to 5, it is characterised in that specific as follows：
Feeding is matched by the chemical composition of above-mentioned environment-friendly type derusting phosphating agent, nitrate, dihydric phosphate, composite corrosion inhibitor are added
Enter in water, stirred under normal temperature to being completely dissolved, then add phosphoric acid and surfactant, ring is can obtain after stirring
Guarantor's type derusting phosphating agent.
7. a kind of application method of environment-friendly type derusting phosphating agent described in Claims 1 to 5, it is characterised in that the rust cleaning phosphorus
Agent is specific as follows in steel surface derusting phosphating：
Steel product to be cleaned is handled with the treatment fluid containing the environment-friendly type derusting phosphating agent, processing mode has immersion, wiping
Brush and spray.
8. a kind of application method of environment-friendly type derusting phosphating agent according to claim 7, it is characterised in that treatment fluid per ton
In contain 50~250Kg of the environment-friendly type derusting phosphating agent.
9. the application method of a kind of environment-friendly type derusting phosphating agent according to claim 7, it is characterised in that the processing is treated
The treatment temperature of the steel product of cleaning is 10~50 DEG C, and treatment time is 15~40min.
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| CN107904605A (en) * | 2017-12-18 | 2018-04-13 | 河北工业大学 | A kind of environment-friendly type acid pickling and rust removing antirust agent |
| CN109280926A (en) * | 2018-11-27 | 2019-01-29 | 朱军博 | A kind of water conservancy equipment high-efficient rust-removing agent and preparation method thereof |
| CN111334806A (en) * | 2020-03-20 | 2020-06-26 | 河北工业大学 | Rust remover and preparation method and application thereof |
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| CN104152928A (en) * | 2014-08-28 | 2014-11-19 | 安徽师范大学 | Surface cleaning agents for casting aluminium alloy, and a preparation method and a usage method of the surface cleaning agents |
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| CN107904605B (en) * | 2017-12-18 | 2019-11-05 | 河北工业大学 | A kind of environment-friendly type acid pickling and rust removing antirust agent |
| CN109280926A (en) * | 2018-11-27 | 2019-01-29 | 朱军博 | A kind of water conservancy equipment high-efficient rust-removing agent and preparation method thereof |
| CN111334806A (en) * | 2020-03-20 | 2020-06-26 | 河北工业大学 | Rust remover and preparation method and application thereof |
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