CN101608336A - A kind of method that realizes electric plating sludge resource - Google Patents
A kind of method that realizes electric plating sludge resource Download PDFInfo
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- CN101608336A CN101608336A CNA2009100162433A CN200910016243A CN101608336A CN 101608336 A CN101608336 A CN 101608336A CN A2009100162433 A CNA2009100162433 A CN A2009100162433A CN 200910016243 A CN200910016243 A CN 200910016243A CN 101608336 A CN101608336 A CN 101608336A
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- pickling liquor
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Abstract
The present invention relates to a kind of treatment process of electric plating sludge resource, the process of this method comprises: electroplating sludge is at first at normal temperatures through acidleach stripping valuable metal wherein, then the pickling liquor that filters to isolate is poured into to reclaim in the copper electrolysis cells and obtain electrolytic copper, then adopt the ammonium jarosite method to precipitate iron and the chromium of removing in the copper pickling liquor, isolate siderochrome slag and nickeliferous pickling liquor after filtration; At last, pour nickeliferous pickling liquor in electrolytic nickel cell recovery part electrolytic nickel, remaining nickel sulfate solution can be by the plating shop reuse, as the raw material of electroplate liquid.The present invention adopts acidleach-electrolysis-precipitation-electrolytic step-by-step processing technology, can obtain the very high electrolytic copper of purity, siderochrome slag and electrolytic nickel, and this method technology is simple, and investment and running cost are low, have high economic benefit and environmental benefit.
Description
Technical field
The present invention relates to a kind of method of electric plating sludge resource, belong to chemistry and resource environment field.
Background technology
A large amount of electroplating sludges that electroplating wastewater produces after chemical precipitation is handled belong to industrial dangerous waste.The treatment process of electroplating sludge mainly concentrates on harmless treatment at present, comprise stacking, landfill, burn, fill out sea etc., but these treatment processs is easy to cause secondary pollution because of dealing with improperly.Contain heavy metals such as a large amount of copper, nickel, chromium, iron in the electroplating sludge, be a kind of potential renewable resource,, then not only solved problem of environmental pollution if can recycle, and can obtain considerable economic, also can solve the shortage of resources problem to a certain extent.
Summary of the invention
The present invention is directed to the characteristics of electroplating sludge complicated component, adopt acidleach-electrolysis-precipitation-electrolytic step-by-step processing technology, can obtain the very high electrolytic copper of purity, siderochrome slag and electrolytic nickel respectively.
Technical scheme of the present invention can be illustrated in conjunction with the technical process of Fig. 1.
1. the acidleach of electroplating sludge: use the valuable metal in sulfuric acid (3) the stripping electroplating sludge (1) under the normal temperature in acid-leaching reaction device (2), undissolvable a small amount of acid leaching residue (4) separates with pickling liquor (5) after filtration.Do not contain objectionable impuritiess such as heavy metal in the acid leaching residue (4), can be cured processing; Pickling liquor (5) is the sulfate liquor of each heavy metal species, waits to do next step processing.
2. electrolytic recovery copper: pour pickling liquor (5) into electrolyzer (6),, at first from the pickling liquor (5) that contains various heavy metal sulfates, reclaim and obtain electrolytic copper (7) by the control flume voltage swing; Go the pickling liquor (8) behind the copper to wait to do next step processing.
3. siderochrome precipitates: will go copper pickling liquor (8) to pour precipitation reactor (9) into, and add ammoniacal liquor (10), and adopt iron and chromium in the ammonium jarosite method precipitation solution, and isolate siderochrome slag (11) and nickeliferous pickling liquor (12) after filtration; Siderochrome slag (11) can be used as ferrite, and nickeliferous pickling liquor (12) waits to do next step processing.
4. electrolytic recovery nickel: pour nickeliferous pickling liquor (12) into electrolyzer (13), by the control flume voltage swing, recovery part electrolytic nickel (14) from nickeliferous pickling liquor (12); Can be from the effusive nickel sulfate solution of electrolyzer (13) (15) by the plating shop reuse, as the raw material of electroplate liquid.
Electric plating sludge resource method of the present invention can reclaim the very high electrolytic copper of purity, electrolytic nickel and siderochrome slag, and the technology of this method is simple, and investment and running cost are low, have high economic benefit and environmental benefit.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
1. electroplating sludges among the figure, 2. acid-leaching reaction device, 3. sulfuric acid, 4. acid leaching residue, 5. pickling liquor, 6. copper electrolysis cells, 7. electrolytic copper 8. goes the copper pickling liquor, 9. precipitation reactor, 10. ammoniacal liquor, 11. the siderochrome slag, 12. nickeliferous pickling liquors, 13. electrolytic nickel cells, 14. electrolytic nickels, 15. nickel sulfate solutions.
Embodiment
The present invention is further described below in conjunction with Fig. 1 and embodiment, and purpose is to investigate the treatment effect of the inventive method to actual electroplating sludge, and concrete implementation step is as follows:
1. get the dried electroplating sludge of 80g (1) in acid-leaching reaction device (2), add the sulfuric acid 400mL of 10% concentration, normal temperature down after vibration acidleach half an hour, filters and obtains pickling liquor (5) and acid leaching residue (4).Acid leaching residue (4) is cured processing, and pickling liquor (5) adds electrolyzer (6).
2. select for use stainless steel cathode, titanium to be coated with ruthenium iridium anode in the electrolyzer (6), the selection bath voltage is 2.7V, obtains electrolytic copper (7).
3. go the pickling liquor (8) behind the copper in precipitation reactor (9), to regulate pH to 1.6 with sodium hydroxide, the ratio adding ammoniacal liquor that adds 1mL ammoniacal liquor again in every 50mL solution, at 95 ℃ of following stirring reaction 3h, precipitation is tapped a blast furnace and chromium, obtains siderochrome slag (11) and nickeliferous pickling liquor (12) after the centrifugation.
4. pour nickeliferous pickling liquor (12) into electrolyzer (13), select for use stainless steel cathode, titanium to be coated with ruthenium iridium anode, the selection bath voltage is 5.5V, obtains electrolytic nickel (14).Can be from the effusive nickel sulfate solution of electrolyzer (13) (15) by the plating shop reuse, as the raw material of electroplate liquid.
The sulfuric acid that is added in the above-mentioned steps 1 also can be with nitric acid or salt acid substitution, the pH of pickling liquor＜1.
The polar plate spacing of copper electrolysis cells in the above-mentioned steps 2 (6) is 3.5cm, and bath voltage can fluctuate between 2V～3V, the best during 2.7V, but must not surpass 3V.
The polar plate spacing of electrolytic nickel cell in the above-mentioned steps 4 (13) is 3.5cm, optimal slot voltage can between 5V～6V, fluctuate the best during 5.5V, but must not be less than 5V.
Table 1 and table 2 have shown acidleach effect of the present invention and heavy metal recovering effect under these processing condition respectively.
Table 1 electroplating sludge acidleach effect (in the heavy metal that the dried electroplating sludge of every kg leaches, the g/kg of unit)
The heavy metal recovering effect of table 2 the inventive method
Claims (3)
1. method that realizes electric plating sludge resource is characterized in that:
(1) whole process comprises acid-leaching reaction device (2), copper electrolysis cells (6), precipitation reactor (9) and electrolytic nickel cell major equipments such as (13).
(2) whole process follows these steps to carry out: at first, with sulfuric acid (3) valuable metal in the stripping electroplating sludge (1) in acid-leaching reaction device (2), undissolvable a small amount of acid leaching residue (4) separates with pickling liquor (5) normal temperature after filtration down; Secondly, pour pickling liquor (5) into electrolyzer (6),, reclaim and obtain electrolytic copper (7) by the control flume voltage swing; Then,, add ammoniacal liquor (10), be settled out the siderochrome in the solution, isolate siderochrome slag (11) and nickeliferous pickling liquor (12) after filtration going the pickling liquor (8) behind the copper to pour precipitation reactor (9) into; Then, pour nickeliferous pickling liquor (12) into electrolyzer (13), by the control flume voltage swing, recovery part electrolytic nickel (14) from nickeliferous pickling liquor (12); At last, can be from the effusive nickel sulfate solution of electrolyzer (13) (15) by the plating shop reuse, as the raw material of electroplate liquid.
2. a kind of method that realizes electric plating sludge resource according to claim 1, the sulfuric acid that it is characterized in that adding in the acid-leaching reaction device (2) also can replace with hydrochloric acid or nitric acid.
3. a kind of method that realizes electric plating sludge resource according to claim 1 is characterized in that stainless steel cathode and the titanium in copper electrolysis cells (6) and the electrolytic nickel cell (13) is coated with ruthenium iridium anode, also can substitute with other corrosion resistant electrode materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009100162433A CN101608336A (en) | 2009-06-18 | 2009-06-18 | A kind of method that realizes electric plating sludge resource |
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| CNA2009100162433A CN101608336A (en) | 2009-06-18 | 2009-06-18 | A kind of method that realizes electric plating sludge resource |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786775A (en) * | 2010-02-10 | 2010-07-28 | 中南大学 | Method for selective recovery of copper and nickel from electroplating sludge |
| CN102321812A (en) * | 2011-09-01 | 2012-01-18 | 东北大学 | Method for comprehensive utilization of laterite nickel ore |
| CN102995094A (en) * | 2011-09-19 | 2013-03-27 | 代芳 | Method for stabilizing metal ion concentration in electroplating bath |
| CN103011537A (en) * | 2012-12-19 | 2013-04-03 | 武汉巍川环保科技有限责任公司 | Method for treating sludge containing trivalent chromium and recovering heavy metal |
| CN104233370A (en) * | 2014-09-02 | 2014-12-24 | 肇庆市飞南金属有限公司 | Method for producing electrolytic copper by utilizing copper-containing sludge |
| CN106282573A (en) * | 2016-08-24 | 2017-01-04 | 盛隆资源再生（无锡）有限公司 | A kind of method reclaiming metals resources from hazardous solid waste |
| CN106498170A (en) * | 2016-11-23 | 2017-03-15 | 肇庆市飞南金属有限公司 | A kind of utilization copper-contained sludge produces the low energy consumption method of cathode copper |
| CN107338359A (en) * | 2017-07-13 | 2017-11-10 | 盛隆资源再生（无锡）有限公司 | It is a kind of containing gold, copper, nickel waste nitric acid in heavy metal classified reclaiming method |
| CN109608011A (en) * | 2018-11-20 | 2019-04-12 | 台州市宏民环保科技有限公司 | A method of plating cupro-nickel mixing sludge resource utilization utilizes |
| CN110055425A (en) * | 2019-06-04 | 2019-07-26 | 福建省固体废物处置有限公司 | A kind of electroplating sludge heavy metal resources method |
| CN110257638A (en) * | 2019-07-23 | 2019-09-20 | 盛隆资源再生（无锡）有限公司 | A method of manganese in solid waste, copper, zinc is separately recovered |
| CN114477573A (en) * | 2022-03-07 | 2022-05-13 | 盛隆资源再生（无锡）有限公司 | Method for separating trivalent chromium from aluminum in aluminum sulfate solution |
-
2009
- 2009-06-18 CN CNA2009100162433A patent/CN101608336A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786775A (en) * | 2010-02-10 | 2010-07-28 | 中南大学 | Method for selective recovery of copper and nickel from electroplating sludge |
| CN102321812A (en) * | 2011-09-01 | 2012-01-18 | 东北大学 | Method for comprehensive utilization of laterite nickel ore |
| CN102321812B (en) * | 2011-09-01 | 2013-04-17 | 东北大学 | Method for comprehensive utilization of laterite nickel ore |
| CN102995094A (en) * | 2011-09-19 | 2013-03-27 | 代芳 | Method for stabilizing metal ion concentration in electroplating bath |
| CN103011537A (en) * | 2012-12-19 | 2013-04-03 | 武汉巍川环保科技有限责任公司 | Method for treating sludge containing trivalent chromium and recovering heavy metal |
| CN104233370B (en) * | 2014-09-02 | 2015-08-19 | 肇庆市飞南金属有限公司 | A kind of method utilizing copper-contained sludge to produce electrolytic copper |
| CN104233370A (en) * | 2014-09-02 | 2014-12-24 | 肇庆市飞南金属有限公司 | Method for producing electrolytic copper by utilizing copper-containing sludge |
| CN106282573A (en) * | 2016-08-24 | 2017-01-04 | 盛隆资源再生（无锡）有限公司 | A kind of method reclaiming metals resources from hazardous solid waste |
| CN106498170A (en) * | 2016-11-23 | 2017-03-15 | 肇庆市飞南金属有限公司 | A kind of utilization copper-contained sludge produces the low energy consumption method of cathode copper |
| CN107338359A (en) * | 2017-07-13 | 2017-11-10 | 盛隆资源再生（无锡）有限公司 | It is a kind of containing gold, copper, nickel waste nitric acid in heavy metal classified reclaiming method |
| CN109608011A (en) * | 2018-11-20 | 2019-04-12 | 台州市宏民环保科技有限公司 | A method of plating cupro-nickel mixing sludge resource utilization utilizes |
| CN110055425A (en) * | 2019-06-04 | 2019-07-26 | 福建省固体废物处置有限公司 | A kind of electroplating sludge heavy metal resources method |
| CN110257638A (en) * | 2019-07-23 | 2019-09-20 | 盛隆资源再生（无锡）有限公司 | A method of manganese in solid waste, copper, zinc is separately recovered |
| CN110257638B (en) * | 2019-07-23 | 2021-04-06 | 盛隆资源再生（无锡）有限公司 | Method for respectively recovering manganese, copper and zinc in solid waste |
| CN114477573A (en) * | 2022-03-07 | 2022-05-13 | 盛隆资源再生（无锡）有限公司 | Method for separating trivalent chromium from aluminum in aluminum sulfate solution |
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Application publication date: 20091223 |