CN105543863A - Preparation method for natural green compound corrosion inhibitor - Google Patents
Preparation method for natural green compound corrosion inhibitor Download PDFInfo
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- CN105543863A CN105543863A CN201510997362.7A CN201510997362A CN105543863A CN 105543863 A CN105543863 A CN 105543863A CN 201510997362 A CN201510997362 A CN 201510997362A CN 105543863 A CN105543863 A CN 105543863A
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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
- C23G1/02—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
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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
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
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Abstract
The invention relates to a preparation method for a natural green compound corrosion inhibitor and belongs to the field of corrosion inhibitor preparation. The preparation method comprises the steps that firstly, animal hairs are soaked in ethyl alcohol, then sodium bicarbonate is added, and stirring, heating, heat preservation and filtration are conducted; the collected and filtered animal hairs are mixed with bagasse after being naturally air-dried, and termites are added to be kept; cooling is conducted until all the termites are dead, the mixture is taken out to be smashed, sieved and mixed with trypsin and other matter, and the obtained mixture is soaked in distilled water; then pH is adjusted through hydrochloric acid, and heat preservation, enzymolysis and centrifugal separation are conducted; and supernate is collected and evenly mixed with calcium phosphate and other matter, compression, heating, filtration and decoloration are conducted, and filtered fluid is collected. The preparation method has the beneficial effects that the prepared corrosion inhibitor is good in corrosion inhibition effect, a corrosion inhibition film with a good effect can be formed whether dirt is deposited on a metal surface or not, and the corrosion inhibition efficiency reaches 90% or more; the prepared corrosion inhibitor is free of poison or damage to human bodies, and environmental pollution is reduced.
Description
Technical field
The present invention relates to a kind of preparation method of natural green composite corrosion inhibitor, belong to inhibiter preparation field.
Background technology
When being present in environment (medium) with suitable concentration and form, can prevent or slow down chemical substance or the mixture of material corrosion, therefore inhibiter also can be called corrosion inhibitor.Its consumption very little (0.1% ~ 1%), but Be very effective.The method of this protection metal claims inhibiter to protect.Inhibiter is used for neutral medium (boiler feed water, recirculated cooling water), acidic medium (hydrochloric acid descaled, the acid dip solution of plating piece rust cleaning before plating) and gaseous media (vapour-phase inhibitor).
The inhibiter that metal is conventional has molybdic acid salt, tungstates, Thiourea, azole etc.Molybdate has corrosion inhibition to Copper and its alloy, and its toxicity is extremely low, and environmental pollution is little, be the environmentally friendly inhibiter of a kind of rising inorganic salts, but its cost is higher.The toxicity of tungstate is very low, is almost safe from harm, does not cause microbial growth to environment and human body, belongs to environmentally friendly inhibiter, but the inhibition efficiency of single use tungstate to copper is low, and consumption is large, and cost is high.Thiourea process is thiocarbamide and di-o-tolyl-thiourea mainly, water-soluble better and have the ability of certain complex copper ion, but single result of use is all not ideal enough.What Azole Corrosion Inhibitors was conventional has mercaptobenzothiazole, benzotriazole (BTA), Methylbenzotriazole, hydroxybenzimidazole etc., and wherein mercaptobenzothiazole has carinogenicity, has prohibitted the use; BTA is better to the rust inhibition of copper, but it is slightly soluble in water, and the rete of generation is very thin, if there is corrosion product metallic surface or has dirt deposition, is just difficult to form respond well corrosion inhibiting film.
Summary of the invention
The technical problem that the present invention mainly solves: the inhibition rete generated for metal current inhibiter is thin, once there is dirt deposition metallic surface, just be difficult to form respond well corrosion inhibiting film, corrosion mitigating effect is not good, simultaneously toxic, human body is damaged, provide and a kind ofly utilize termite to decompose distinctive acid in protein in animal hair and termite body, and at high temperature carry out concentrated polymerization and can be prepared into inhibiter, inhibiter corrosion mitigating effect prepared by the present invention is good, no matter whether metallic surface has dirt deposition, respond well corrosion inhibiting film can be formed, inhibition efficiency is up to more than 90%, simultaneously nontoxic, can not damage human body.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention:
(1) get animal hair and put into container, add the alcohol solution dipping hair that massfraction is 50 ~ 60% wherein, add the sodium bicarbonate of animal hair quality 20 ~ 30% more wherein, after stirring, container is heated, be heated to 120 ~ 130 DEG C, insulation 1 ~ 2h, carry out filtered while hot to it subsequently, the animal hair collected after filtering carries out natural air drying, obtains pre-treated animals hair;
(2) by above-mentioned pre-treated animals hair and bagasse in mass ratio 2:1 mix, again mixture is put into container, add termite wherein, add-on is add 5 ~ 8 termites in every 20g mixture, keep the temperature in container to be 28 ~ 35 DEG C, air moisture content is 35 ~ 40%, then uses mixed gas to be discharged by the air in container, cultivate 30 ~ 35 days, described mixed gas be carbon dioxide and oxygen by volume 1:3 mix;
(3) after above-mentioned cultivation terminates, container is lowered the temperature until the termite in container is all dead, again the mixture in container is put into pulverizer to pulverize, sieve to obtain 120 ~ 150 order mix powders, subsequently by itself and trypsinase, papoid, 6:1:1 mixes in mass ratio, then puts into container, add distilled water immersion mixture wherein, re-use massfraction be 10% hydrochloric acid soln regulate pH be 5.5 ~ 6.5;
(4) after above-mentioned pH regulator terminates, keep vessel temp 30 ~ 35 DEG C, stir enzymolysis 30 ~ 35h, subsequently the mixture in container is put into whizzer and carry out centrifugation, collect supernatant liquor, then the supernatant liquor of gained is put into container, mix respectively to the Sunmorl N 60S wherein adding the calcium phosphate of supernatant liquor quality 5 ~ 8%, the diethylenetriamine of supernatant volume 16 ~ 23% and supernatant liquor quality 12 ~ 18%;
(5) 1 ~ 2MP is forced into said vesse, is heated to 110 ~ 120 DEG C, after keeping temperature 2 ~ 3h, filtration under diminished pressure while hot subsequently, collects filtered liquid, then carries out desolventing technology by gac to filtered liquid, last collecting by filtration filtrate, can obtain natural green composite corrosion inhibitor.
application of the present invention: first by massfraction be 35% dilute hydrochloric acid and deionized water in mass ratio 1:4 mix, be made into pickle solution, be added in pickle solution by the natural green composite corrosion inhibitor of above-mentioned preparation again, the amount added and the volume ratio of pickle solution are 1:10, stir until mix to it, and control temperature is 20 ~ 25 DEG C, add to it steel treating inhibition again, submergence 1 ~ 2h, takes out, record its inhibition efficiency up to more than 90%, inhibition time shorten 30 ~ 45min.
The invention has the beneficial effects as follows:
(1) the inhibiter corrosion mitigating effect prepared is good, and no matter whether metallic surface has dirt deposition, and can form respond well corrosion inhibiting film, inhibition efficiency is up to more than 90%;
(2) nontoxic, can not damage human body, reduce the pollution to environment;
(3) preparation process is simple, and cost is low.
Embodiment
First get animal hair and put into container, add the alcohol solution dipping hair that massfraction is 50 ~ 60% wherein, add the sodium bicarbonate of animal hair quality 20 ~ 30% more wherein, after stirring, container is heated, be heated to 120 ~ 130 DEG C, insulation 1 ~ 2h, carry out filtered while hot to it subsequently, the animal hair collected after filtering carries out natural air drying, obtains pre-treated animals hair; Again by above-mentioned pre-treated animals hair and bagasse in mass ratio 2:1 mix, again mixture is put into container, add termite wherein, add-on is add 5 ~ 8 termites in every 20g mixture, keep the temperature in container to be 28 ~ 35 DEG C, air moisture content is 35 ~ 40%, then uses mixed gas to be discharged by the air in container, cultivate 30 ~ 35 days, described mixed gas be carbon dioxide and oxygen by volume 1:3 mix; After above-mentioned cultivation terminates, container is lowered the temperature until the termite in container is all dead, again the mixture in container is put into pulverizer to pulverize, sieve to obtain 120 ~ 150 order mix powders, subsequently by itself and trypsinase, papoid, 6:1:1 mixes in mass ratio, then puts into container, add distilled water immersion mixture wherein, re-use massfraction be 10% hydrochloric acid soln regulate pH be 5.5 ~ 6.5; After above-mentioned pH regulator terminates, keep vessel temp 30 ~ 35 DEG C, stir enzymolysis 30 ~ 35h, subsequently the mixture in container is put into whizzer and carry out centrifugation, collect supernatant liquor, then the supernatant liquor of gained is put into container, mix respectively to the Sunmorl N 60S wherein adding the calcium phosphate of supernatant liquor quality 5 ~ 8%, the diethylenetriamine of supernatant volume 16 ~ 23% and supernatant liquor quality 12 ~ 18%; 1 ~ 2MP is forced into said vesse, is heated to 110 ~ 120 DEG C, after keeping temperature 2 ~ 3h, filtration under diminished pressure while hot subsequently, collects filtered liquid, then carries out desolventing technology by gac to filtered liquid, last collecting by filtration filtrate, can obtain natural green composite corrosion inhibitor.
Example 1
First get animal hair and put into container, add the alcohol solution dipping hair that massfraction is 60% wherein, add the sodium bicarbonate of animal hair quality 30% more wherein, after stirring, container is heated, be heated to 130 DEG C, insulation 2h, carry out filtered while hot to it subsequently, the animal hair collected after filtering carries out natural air drying, obtains pre-treated animals hair; Again by above-mentioned pre-treated animals hair and bagasse in mass ratio 2:1 mix, again mixture is put into container, add termite wherein, add-on is add 8 termites in every 20g mixture, keep the temperature in container to be 35 DEG C, air moisture content is 40%, then uses mixed gas to be discharged by the air in container, cultivate 35 days, described mixed gas be carbon dioxide and oxygen by volume 1:3 mix; After above-mentioned cultivation terminates, container is lowered the temperature until the termite in container is all dead, again the mixture in container is put into pulverizer to pulverize, sieve to obtain 150 order mix powders, subsequently by itself and trypsinase, papoid, 6:1:1 mixes in mass ratio, then puts into container, add distilled water immersion mixture wherein, re-use massfraction be 10% hydrochloric acid soln regulate pH be 6.5; After above-mentioned pH regulator terminates, keep vessel temp 35 DEG C, stir enzymolysis 35h, subsequently the mixture in container is put into whizzer and carry out centrifugation, collect supernatant liquor, then the supernatant liquor of gained is put into container, mix respectively to the Sunmorl N 60S wherein adding the calcium phosphate of supernatant liquor quality 8%, the diethylenetriamine of supernatant volume 23% and supernatant liquor quality 18%; Be forced into 2MP to said vesse, be heated to 120 DEG C, keep after temperature 3h, subsequently filtration under diminished pressure while hot, collect filtered liquid, then carry out desolventing technology by gac to filtered liquid, last collecting by filtration filtrate, can obtain natural green composite corrosion inhibitor.First by massfraction be 35% dilute hydrochloric acid and deionized water in mass ratio 1:4 mix, be made into pickle solution, be added in pickle solution by the natural green composite corrosion inhibitor of above-mentioned preparation again, the amount added and the volume ratio of pickle solution are 1:10, stir until mix to it, and control temperature is 25 DEG C, add to it steel treating inhibition again, submergence 2h, takes out, record its inhibition efficiency up to 92%, inhibition time shorten 45min.
example 2
First get animal hair and put into container, add the alcohol solution dipping hair that massfraction is 60% wherein, add the sodium bicarbonate of animal hair quality 30% more wherein, after stirring, container is heated, be heated to 130 DEG C, insulation 2h, carry out filtered while hot to it subsequently, the animal hair collected after filtering carries out natural air drying, obtains pre-treated animals hair; Again by above-mentioned pre-treated animals hair and bagasse in mass ratio 2:1 mix, again mixture is put into container, add termite wherein, add-on is add 8 termites in every 20g mixture, keep the temperature in container to be 35 DEG C, air moisture content is 40%, then uses mixed gas to be discharged by the air in container, cultivate 30 days, described mixed gas be carbon dioxide and oxygen by volume 1:3 mix; After above-mentioned cultivation terminates, container is lowered the temperature until the termite in container is all dead, again the mixture in container is put into pulverizer to pulverize, sieve to obtain 120 order mix powders, subsequently by itself and trypsinase, papoid, 6:1:1 mixes in mass ratio, then puts into container, add distilled water immersion mixture wherein, re-use massfraction be 10% hydrochloric acid soln regulate pH be 5.5; After above-mentioned pH regulator terminates, keep vessel temp 30 DEG C, stir enzymolysis 30h, subsequently the mixture in container is put into whizzer and carry out centrifugation, collect supernatant liquor, then the supernatant liquor of gained is put into container, mix respectively to the Sunmorl N 60S wherein adding the calcium phosphate of supernatant liquor quality 5%, the diethylenetriamine of supernatant volume 16% and supernatant liquor quality 12%; Be forced into 1MP to said vesse, be heated to 110 DEG C, keep after temperature 2h, subsequently filtration under diminished pressure while hot, collect filtered liquid, then carry out desolventing technology by gac to filtered liquid, last collecting by filtration filtrate, can obtain natural green composite corrosion inhibitor.First by massfraction be 35% dilute hydrochloric acid and deionized water in mass ratio 1:4 mix, be made into pickle solution, be added in pickle solution by the natural green composite corrosion inhibitor of above-mentioned preparation again, the amount added and the volume ratio of pickle solution are 1:10, stir until mix to it, and control temperature is 20 DEG C, add to it steel treating inhibition again, submergence 1h, takes out, record its inhibition efficiency up to 95%, inhibition time shorten 30min.
Example 3
First get animal hair and put into container, add the alcohol solution dipping hair that massfraction is 55% wherein, add the sodium bicarbonate of animal hair quality 25% more wherein, after stirring, container is heated, be heated to 125 DEG C, insulation 1h, carry out filtered while hot to it subsequently, the animal hair collected after filtering carries out natural air drying, obtains pre-treated animals hair; Again by above-mentioned pre-treated animals hair and bagasse in mass ratio 2:1 mix, again mixture is put into container, add termite wherein, add-on is add 6 termites in every 20g mixture, keep the temperature in container to be 30 DEG C, air moisture content is 37%, then uses mixed gas to be discharged by the air in container, cultivate 32 days, described mixed gas be carbon dioxide and oxygen by volume 1:3 mix; After above-mentioned cultivation terminates, container is lowered the temperature until the termite in container is all dead, again the mixture in container is put into pulverizer to pulverize, sieve to obtain 130 order mix powders, subsequently by itself and trypsinase, papoid, 6:1:1 mixes in mass ratio, then puts into container, add distilled water immersion mixture wherein, re-use massfraction be 10% hydrochloric acid soln regulate pH be 6.0; After above-mentioned pH regulator terminates, keep vessel temp 32 DEG C, stir enzymolysis 32h, subsequently the mixture in container is put into whizzer and carry out centrifugation, collect supernatant liquor, then the supernatant liquor of gained is put into container, mix respectively to the Sunmorl N 60S wherein adding the calcium phosphate of supernatant liquor quality 6%, the diethylenetriamine of supernatant volume 20% and supernatant liquor quality 15%; Be forced into 1MP to said vesse, be heated to 115 DEG C, keep after temperature 2h, subsequently filtration under diminished pressure while hot, collect filtered liquid, then carry out desolventing technology by gac to filtered liquid, last collecting by filtration filtrate, can obtain natural green composite corrosion inhibitor.First by massfraction be 35% dilute hydrochloric acid and deionized water in mass ratio 1:4 mix, be made into pickle solution, be added in pickle solution by the natural green composite corrosion inhibitor of above-mentioned preparation again, the amount added and the volume ratio of pickle solution are 1:10, stir until mix to it, and control temperature is 22 DEG C, add to it steel treating inhibition again, submergence 1h, takes out, record its inhibition efficiency up to 93%, inhibition time shorten 30min.
Claims (1)
1. a preparation method for natural green composite corrosion inhibitor, is characterized in that concrete preparation process is:
(1) get animal hair and put into container, add the alcohol solution dipping hair that massfraction is 50 ~ 60% wherein, add the sodium bicarbonate of animal hair quality 20 ~ 30% more wherein, after stirring, container is heated, be heated to 120 ~ 130 DEG C, insulation 1 ~ 2h, carry out filtered while hot to it subsequently, the animal hair collected after filtering carries out natural air drying, obtains pre-treated animals hair;
(2) by above-mentioned pre-treated animals hair and bagasse in mass ratio 2:1 mix, again mixture is put into container, add termite wherein, add-on is add 5 ~ 8 termites in every 20g mixture, keep the temperature in container to be 28 ~ 35 DEG C, air moisture content is 35 ~ 40%, then uses mixed gas to be discharged by the air in container, cultivate 30 ~ 35 days, described mixed gas be carbon dioxide and oxygen by volume 1:3 mix;
(3) after above-mentioned cultivation terminates, container is lowered the temperature until the termite in container is all dead, again the mixture in container is put into pulverizer to pulverize, sieve to obtain 120 ~ 150 order mix powders, subsequently by itself and trypsinase, papoid, 6:1:1 mixes in mass ratio, then puts into container, add distilled water immersion mixture wherein, re-use massfraction be 10% hydrochloric acid soln regulate pH be 5.5 ~ 6.5;
(4) after above-mentioned pH regulator terminates, keep vessel temp 30 ~ 35 DEG C, stir enzymolysis 30 ~ 35h, subsequently the mixture in container is put into whizzer and carry out centrifugation, collect supernatant liquor, then the supernatant liquor of gained is put into container, mix respectively to the Sunmorl N 60S wherein adding the calcium phosphate of supernatant liquor quality 5 ~ 8%, the diethylenetriamine of supernatant volume 16 ~ 23% and supernatant liquor quality 12 ~ 18%;
(5) 1 ~ 2MP is forced into said vesse, is heated to 110 ~ 120 DEG C, after keeping temperature 2 ~ 3h, filtration under diminished pressure while hot subsequently, collects filtered liquid, then carries out desolventing technology by gac to filtered liquid, last collecting by filtration filtrate, can obtain natural green composite corrosion inhibitor.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106637245A (en) * | 2016-10-17 | 2017-05-10 | 常州市鼎日环保科技有限公司 | Preparation method for composite corrosion inhibitor |
| CN115323385A (en) * | 2022-08-30 | 2022-11-11 | 重庆广仁铁塔制造有限公司 | Preparation method of efficient environment-friendly galvanized pickling corrosion inhibitor, corrosion inhibitor and application of corrosion inhibitor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804125A (en) * | 2006-01-19 | 2006-07-19 | 重庆大学 | Metal pickling inhibitor and method for preparing the same |
| CN101906635A (en) * | 2010-07-23 | 2010-12-08 | 上海电力学院 | Carbon steel sulfamic acid pickling compound corrosion inhibitor and preparation method thereof |
| CN103147080A (en) * | 2013-04-01 | 2013-06-12 | 滁州旭中化工有限公司 | Corrosion inhibitor |
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2015
- 2015-12-28 CN CN201510997362.7A patent/CN105543863B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804125A (en) * | 2006-01-19 | 2006-07-19 | 重庆大学 | Metal pickling inhibitor and method for preparing the same |
| CN101906635A (en) * | 2010-07-23 | 2010-12-08 | 上海电力学院 | Carbon steel sulfamic acid pickling compound corrosion inhibitor and preparation method thereof |
| CN103147080A (en) * | 2013-04-01 | 2013-06-12 | 滁州旭中化工有限公司 | Corrosion inhibitor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106637245A (en) * | 2016-10-17 | 2017-05-10 | 常州市鼎日环保科技有限公司 | Preparation method for composite corrosion inhibitor |
| CN115323385A (en) * | 2022-08-30 | 2022-11-11 | 重庆广仁铁塔制造有限公司 | Preparation method of efficient environment-friendly galvanized pickling corrosion inhibitor, corrosion inhibitor and application of corrosion inhibitor |
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| CN105543863B (en) | 2017-10-13 |
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