CN101100762A - Regeneration treating agent for chloride zinc coating solution and solution regeneration treating method - Google Patents
Regeneration treating agent for chloride zinc coating solution and solution regeneration treating method Download PDFInfo
- Publication number
- CN101100762A CN101100762A CNA2007100151459A CN200710015145A CN101100762A CN 101100762 A CN101100762 A CN 101100762A CN A2007100151459 A CNA2007100151459 A CN A2007100151459A CN 200710015145 A CN200710015145 A CN 200710015145A CN 101100762 A CN101100762 A CN 101100762A
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- CN
- China
- Prior art keywords
- potassium permanganate
- solution
- chloride galvanizing
- galvanizing solution
- chloride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A regenerating agent and process for galvanizing chloride solution are both disclosed herewith. It is carried out by: adding potassium permanganate or aqueous potassium permanganate solution into galvanizing chloride solution, adding activating carbon to adsorb, and filtering off organic discomposed products and iron impurity to obtain regenerated galvanizing chloride solution. It simply extends service life of the galvanizing chloride solution.
Description
Technical field
The present invention relates to provides the agent of the tectal chloride galvanizing solution of protective surface metal manipulation of regeneration to steel product, and chloride galvanizing solution regeneration treating method.
Background technology
The steel part surface galvanizing is a kind of protective coating of cheapness, all be used widely in machinery, electronic instrument, light industry, household electrical appliances, automobile and other industries, chloride galvanizing is nontoxic, stable owing to its solution does not have cyanogen, technology is simple, characteristics such as coating performance is good occupy more than 60% of whole zinc-plated industry integral body.This technology has two characteristics: one is for adding a large amount of organism, as polyoxyethylene deriv, aromatic derivant etc.; It two is weakly acidic solutions, and contains a large amount of chlorions, and steel product is very easily dissolved.Therefore in electroplating process, can constantly decompose generation organic impurity, iron contamination (Fe in the solution simultaneously
2+) the also total constantly rising of content, every liter of plating bath work of generalized case 1000～2000AH just needs manipulation of regeneration.Existing Technology mainly adopts H
2O
2Carry out manipulation of regeneration as the manipulation of regeneration agent, but there is following defective in the production application aspect:
The first, handle plating bath and need heat to 60～70 ℃, otherwise can't the completely destroy organic impurity.But the chloride galvanizing working temperature is a normal temperature, and the temperature rising influences quality of coating and plating solution performance.Therefore, need set up warming-up device during the manipulation of regeneration plating bath; Also need be cooled to room temperature after processing finishes, if no cooling system, thousands ofly rise plating bath to be cooled to the required cycle of room temperature longer, influence production;
The second, H
2O
2Need more accurately to control consumption, the few weak effect of amount, excessive residual H
2O
2Generation has a strong impact on to the plating bath quality.
Summary of the invention
One of task of the present invention is to solve chloride galvanizing solution employing H in the prior art
2O
2Defective as the manipulation of regeneration agent exists provides a kind of new chloride galvanizing solution manipulation of regeneration agent.
Two of task of the present invention is to provide a kind of and utilizes above-mentioned new chloride galvanizing solution manipulation of regeneration agent chloride galvanizing solution to be carried out the method for manipulation of regeneration.
For realizing invention task one, its technical solution is:
The agent of a kind of chloride galvanizing solution manipulation of regeneration, above-mentioned manipulation of regeneration agent is potassium permanganate solid or potassium permanganate solution.
A kind of chloride galvanizing solution regeneration treating method comprises step:
A adds potassium permanganate solid or potassium permanganate solution in pending chloride galvanizing solution, generate the potassium permanganate oxidation plating bath;
B adds gac and adsorbs in above-mentioned potassium permanganate oxidation plating bath;
C filters the chloride galvanizing solution that obtains regenerating.
Among the above-mentioned steps a, comprise step:
It is 3-4 that a1 adjusts pH value with pending chloride galvanizing solution;
A2 adds potassium permanganate solid or potassium permanganate solution, and stirs, and is static then, all generates brown MnO until remaining potassium permanganate
2Precipitation, supernatant liquor is the water white transparency shape.
Among the above-mentioned steps a2, comprise step:
Every liter of pending chloride galvanizing solution of a21 adds potassium permanganate solid 1-5g, or adds the potassium permanganate solution that is equivalent to be dissolved with aforementioned potassium permanganate solids content.
Among the above-mentioned steps a2, comprise step:
The a22 churning time is 30 minutes; Be 0.5～1 hour rest time.
Among the above-mentioned steps b, comprise step:
B1 transfers pH value 〉=5 with sodium hydroxide, potassium hydroxide or ammoniacal liquor after adding gac and stirring 30 minutes then, continue to stir leave standstill after 30 minutes etc. to be filtered.
Among the above-mentioned steps c, comprise step:
C1 filters the chloride galvanizing solution that obtains regenerating, and through adjusting PH, can ordinary production use after adding additive.
The present invention compared with prior art has following characteristics:
1, use potassium permanganate as the manipulation of regeneration agent, handle chloride galvanizing solution, working method is simple, and the processing cycle is short.
2, use potassium permanganate as the manipulation of regeneration agent, handle chloride galvanizing solution, residual harmful substance not is not even potassium permanganate excessive (excess) can influence plating solution performance yet.
3, the present invention need not to heat save energy in handling chloride galvanizing solution process.
4, residual KMnO
4Generate MnO rapidly and thoroughly
2Precipitation can be saved the plating bath treatment time in a large number.
Embodiment
The present invention is containing higher organism, organic decomposition product, iron contamination (Fe
2+) chloride galvanizing solution in add potassium permanganate solution as the manipulation of regeneration agent.Potassium permanganate produces following reaction in acidic solution:
KMnO
4+H
++Fe
2+→MnO
2↓+H
2O+Fe
3+
KMnO
4+H
++[CHONS]→MnO
2↓+H
2O+CO
2↑
Annotate: [CHONS] represents zinc-plating brightener and degradation production
KMnO
4Effect 2 points are arranged: the one, with F
2+Be oxidized to Fe
3+, F
3+Transferring pH value is 5 precipitations; The 2nd, oxidation organic decomposition product adds charcoal absorption, filters same Fe
3+Come along and remove.
The concrete operation method of taking can be as follows:
1, adjusting pending chloride galvanizing solution pH value is 3,3.5 or 4, adds potassium permanganate solid or potassium permanganate solution then; Every liter of pending chloride galvanizing solution can add 1,2,3,4 or 5g potassium permanganate solid (or add with the 20% potassium permanganate solution form that is equivalent to be dissolved with aforementioned potassium permanganate solids content); And stirred 30 minutes.
2, static 0.5,0.8 or 1 hour, generate the potassium permanganate oxidation plating bath; This moment, remaining potassium permanganate all generated brown MnO
2Precipitation, supernatant liquor is the water white transparency shape.
3, adding gac in the potassium permanganate oxidation plating bath adsorbs; Every rising potassium manganate oxidation plating bath adding 2,2,2.5 or 3g gac; Continue to stir 30 minutes; Then, transferring pH value with sodium hydroxide, potassium hydroxide or ammoniacal liquor is 5,6 or 7 etc., and stir leave standstill after 30 minutes etc. to be filtered.
4, filter the chloride galvanizing solution that obtains regenerating; Filtrate can be added additive and can ordinary production use through adjusting PH.
Again in conjunction with concrete chloride galvanizing solution, illustrate further below:
Example 1
Plating bath technical recipe: Repone K 220g/L; Zinc chloride 60g/L; Boric acid 25g/L; Sylvite galvanized light agent 20ml; PH value=5; 20 ℃ of temperature, D
K1.5A/dm
2Obtaining coating by above-mentioned processing condition is silvery white full light.Constantly add brightening agent and implement continuous electroplating,, add brightening agent more all to no effect the time, use manipulation of regeneration agent (KMnO in the invention described above until the serious variation of quality of coating (brittle coating, outward appearance are half bright dun)
42g/L) and take in the invention described above the treatment process chloride galvanizing solution that obtains regenerating, add brightening agent then, put into during ordinary production uses, it is normal that quality of coating recovers.
Example 2
Plating bath technical recipe: zinc chloride 35g/L; Ammonium chloride 250g/L; Hexamethylenetetramine 15g/L; Brightening agent 20ml; 20 ℃ of temperature; PH value=6; D
K2A/dm
2. obtaining coating by above-mentioned processing condition is the beige light.Constantly add brightening agent and implement continuous electroplating,, add brightening agent more all to no effect the time, use manipulation of regeneration agent (KMnO in the invention described above until the serious variation of quality of coating (brittle coating, outward appearance are half bright dun)
43g/L) and take in the invention described above the treatment process chloride galvanizing solution that obtains regenerating, add brightening agent then, put into during ordinary production uses, it is normal that quality of coating recovers.
Claims (8)
1, a kind of chloride galvanizing solution manipulation of regeneration agent is characterized in that: described manipulation of regeneration agent is potassium permanganate solid or potassium permanganate solution.
2, a kind of chloride galvanizing solution regeneration treating method is characterized in that comprising step:
A adds potassium permanganate solid or potassium permanganate solution in pending chloride galvanizing solution, generate the potassium permanganate oxidation plating bath;
B adds gac and adsorbs in above-mentioned potassium permanganate oxidation plating bath;
C filters the chloride galvanizing solution that obtains regenerating.
3, chloride galvanizing solution regeneration treating method according to claim 2 is characterized in that: among the described step a, comprise step:
It is 3-4 that a1 adjusts pH value with pending chloride galvanizing solution;
A2 adds potassium permanganate solid or potassium permanganate solution, and stirs, and is static then, all generates brown MnO until remaining potassium permanganate
2Precipitation, supernatant liquor is the water white transparency shape.
4, chloride galvanizing solution regeneration treating method according to claim 3 is characterized in that: among the described step a2, comprise step:
Every liter of pending chloride galvanizing solution of a21 adds potassium permanganate solid 1-5g, or adds the potassium permanganate solution that is equivalent to be dissolved with aforementioned potassium permanganate solids content.
5, chloride galvanizing solution regeneration treating method according to claim 3 is characterized in that: among the described step a2, comprise step:
The a22 churning time is 30 minutes; 0.5～1 hour rest time.
6, require described chloride galvanizing solution regeneration treating method according to claim 2 to 5 is arbitrary, it is characterized in that: among the described step b, comprise step:
B1 transfers pH value 〉=5 with sodium hydroxide, potassium hydroxide or ammoniacal liquor after adding gac and stirring 30 minutes then, continue to stir leave standstill after 30 minutes etc. to be filtered.
7, require described chloride galvanizing solution regeneration treating method according to claim 2 to 5 is arbitrary, it is characterized in that: among the described step c, comprise step:
C1 filters the chloride galvanizing solution that obtains regenerating, and through adjusting PH, can ordinary production use after adding additive.
8, chloride galvanizing solution regeneration treating method according to claim 6 is characterized in that: among the described step c, comprise step:
C1 filters the chloride galvanizing solution that obtains regenerating, and through adjusting PH, can ordinary production use after adding additive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100151459A CN101100762A (en) | 2007-07-19 | 2007-07-19 | Regeneration treating agent for chloride zinc coating solution and solution regeneration treating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100151459A CN101100762A (en) | 2007-07-19 | 2007-07-19 | Regeneration treating agent for chloride zinc coating solution and solution regeneration treating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101100762A true CN101100762A (en) | 2008-01-09 |
Family
ID=39035207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100151459A Pending CN101100762A (en) | 2007-07-19 | 2007-07-19 | Regeneration treating agent for chloride zinc coating solution and solution regeneration treating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101100762A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013006995A1 (en) * | 2011-07-11 | 2013-01-17 | Ou Chien-Tsung | Method for removing iron ions in solubility promoter |
| CN107915299A (en) * | 2017-10-30 | 2018-04-17 | 昆明理工大学 | A kind of adjusting method and device of mechanical zinc-plating wastewater treatment liquid |
| CN110373706A (en) * | 2019-08-22 | 2019-10-25 | 电子科技大学 | A kind of on-line maintenance method of acid bright copper plating electroplate liquid |
| CN113106530A (en) * | 2021-03-30 | 2021-07-13 | 河北恒创环保科技有限公司 | Treatment process of waste electroplating solution of electrogalvanizing and roller drying device for treatment |
-
2007
- 2007-07-19 CN CNA2007100151459A patent/CN101100762A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013006995A1 (en) * | 2011-07-11 | 2013-01-17 | Ou Chien-Tsung | Method for removing iron ions in solubility promoter |
| GB2510705A (en) * | 2011-07-11 | 2014-08-13 | Chien-Tsung Ou | Method for removing iron ions in solubility promoter |
| CN107915299A (en) * | 2017-10-30 | 2018-04-17 | 昆明理工大学 | A kind of adjusting method and device of mechanical zinc-plating wastewater treatment liquid |
| CN110373706A (en) * | 2019-08-22 | 2019-10-25 | 电子科技大学 | A kind of on-line maintenance method of acid bright copper plating electroplate liquid |
| CN110373706B (en) * | 2019-08-22 | 2021-05-14 | 电子科技大学 | Online maintenance method of acidic bright copper plating electroplating solution |
| CN113106530A (en) * | 2021-03-30 | 2021-07-13 | 河北恒创环保科技有限公司 | Treatment process of waste electroplating solution of electrogalvanizing and roller drying device for treatment |
| CN113106530B (en) * | 2021-03-30 | 2022-02-15 | 河北恒创环保科技有限公司 | Treatment process of waste electroplating solution of electrogalvanizing and roller drying device for treatment |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20080109 |