CN101805831A - Method for directly extracting nickel in alkaline chemical nickel-plating waste liquid - Google Patents
Method for directly extracting nickel in alkaline chemical nickel-plating waste liquid Download PDFInfo
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- CN101805831A CN101805831A CN201010131641A CN201010131641A CN101805831A CN 101805831 A CN101805831 A CN 101805831A CN 201010131641 A CN201010131641 A CN 201010131641A CN 201010131641 A CN201010131641 A CN 201010131641A CN 101805831 A CN101805831 A CN 101805831A
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Abstract
The invention discloses a method for directly extracting nickel in alkaline chemical nickel-plating waste liquid, relating to treatment of industrial waste liquid and providing a method for directly extracting nickel in alkaline chemical nickel-plating waste liquid, which can replace the existing techniques, such as a chemical method, an electroosmosis method, an electrolysis method, an RO membrane separation method, a pressure-filter method and the like, can reduce the treatment cost of the waste water containing nickel, improve the energy utilization of nickel and avoid from generating secondary pollution. The method comprises the following steps: injecting the alkaline chemical nickel-plating waste liquid into an alkaline chemical nickel-plating waste liquid groove, adding a catalyst, a reducing agent and a nickel-extracting carrier in the alkaline chemical nickel-plating waste liquid groove, after RO membrane reverse osmosis treatment and thermal evaporation to residual alkaline chemical nickel liquid with nickel of being extracted, leading more than or equal to 98 percent of nickel ions in the alkaline chemical nickel-plating waste liquid to be deposited on the nickel-extracting carrier, and generating solid waste residue, namely, finishing the direct extracting of nickel in the alkaline chemical nickel-plating waste liquid.
Description
Technical field
The present invention relates to a kind of processing of industrial effluent, especially relate to a kind of method of in alkaline chemical nickel-plating waste liquid, directly extracting nickel.
Background technology
Chemical nickel plating is a kind of no external power effect, on the metallic surface, deposit one deck nickel one boron alloy nickel coating by the chemical nickel-plating liquid selfoxidation-reduction reaction, alkaline chemical nickel-plating is to be reductive agent with the sodium borohydride, the active duty cycle of alkaline chemical nickel-plating (life-span), generally (the nickel content that the work period is defined as when newly joining groove is Units of Account can utilizing about 4～10 cycles, aborning because of nickel consumption, add a Units of Account amount nickel, be one-period) reach all after dates, the NaBo in the plating bath
2Be accumulated in a large number in the plating bath, cause plating speed and slow down gradually, plating bath loses use value, needs to discard to emit, and also has the nickel of 3～5g/L in discarded liquid, formulates nickeliferous discharging of waste liquid standard according to State Bureau of Environmental Protection and is＜1ppm.
Current processing for nickel-containing waste water mainly contains 3 kinds of modes: chemical method, electroosmose process and RO membrane separation process etc.
Chemical method makes it to produce particulate matter, and logical again pressure filter produces the nickeliferous sludge silt of paste with its press filtration, then it is buried, or burns till common brick.This method is the processing cost height not only, wastes a large amount of nickel resources, and can produce secondary pollution.
Electroosmose process need to drop into relevant power equipment coating bath and electroplax etc., and it is long to handle the operational process time, and power consumption is big, because of cost too high, so application is less.
The RO membrane separation process, at present, the about 0.5T/h of required cost, equipment needs about 300,000 yuans, handled nickel-containing waste water concentration need≤100ppm, and the separating treatment amount is 65% of total treatment capacity, all the other 35% nickel-containing waste waters need secondary treatment, as passing through chemical method, electroosmose process etc.
Publication number is that the application for a patent for invention of CN201325915 discloses a kind of treatment facility that contains complex compound nickel-plating waste liquid and nickel-plating rinsing waste water, comprises at least one ion exchange column, its inlet ductwork and export pipeline.Inlet ductwork is in order to containing the solution of complex compound to ion exchange column input, this inlet ductwork is provided with solution is adjusted to a pH value regulon of one the 2nd pH value from one the one pH value, and wherein the 2nd pH value is smaller or equal to 3.At least one ion exchange column is equipped with storng-acid cation exchange resin, and it is imported this solution and carries out ion-exchange, makes that nickel ion is adsorbed on the resin in the solution.The solution of export pipeline after the ion exchange column output ion-exchange, this export pipeline is provided with the 2nd pH value regulon that the pH value of solution is adjusted to a target pH value.This invention utilizes under acidic conditions, and the most weak characteristic of complexing of nickel ion adopts ion-exchange to adsorb the mode of nickel ion, has solved nickel-plating waste liquid and the reluctant predicament of nickel-plating rinsing waste water that contains complex compound at present with simple method.
Summary of the invention
The purpose of this invention is to provide technologies such as to substitute existing chemical method, electroosmose process, electrolytic process, RO membrane separation process, filter press technique, can reduce nickeliferous cost for wastewater treatment, improve the utilization of the energy of nickel, avoid producing a kind of method of in alkaline chemical nickel-plating waste liquid, directly extracting nickel of secondary pollution.
The present invention includes following steps:
1) alkaline chemical nickel-plating waste liquid is injected the alkaline chemical nickel-plating waste liquid groove, in the alkaline chemical nickel-plating waste liquid groove, add catalytic reducer and nickel extraction carrier;
2) will be after the alkali electroless nickel raffinate after step 1) is directly extracted nickel be through processing of RO membrane reverse osmosis and thermal evaporation processing, nickel ion 〉=98% in the alkaline chemical nickel-plating waste liquid is deposited on the nickel extraction carrier, produce solid slag, promptly finish and in alkaline chemical nickel-plating waste liquid, directly extract nickel.
In step 1), the add-on of described catalytic reducer by volume, can be catalytic reducer: alkaline chemical nickel-plating waste liquid=(0.3～0.5): 100; Described catalytic reducer can comprise sodium borohydride, quadrol, thiocarbamide, sulfenyl benzene a pair of horses going side by side thiazole and Potassium Thiosulphate, in every liter of catalytic reducer, it is 0.1～5g/L, quadrol 20～40g/L that the concentration of each composition of catalytic reducer can be sodium borohydride, thiocarbamide 0.1～1g/L, sulfenyl benzene a pair of horses going side by side thiazole 0.01～1g/L, Potassium Thiosulphate 0.01～0.1g/L, Yu Weishui; Described nickel extracts carrier can adopt 40 series stainless steels or iron, and the shape that described nickel extracts carrier can be cylinder shape, reticular pattern, corrugation type, ball type or sheet type etc.; The temperature of described alkaline chemical nickel-plating waste liquid can be 80～90 ℃, and the pH value of alkaline chemical nickel-plating waste liquid can transfer to 〉=12, described adjusting can adopt ammoniacal liquor the pH value of alkaline chemical nickel-plating waste liquid is transferred to 〉=12.In alkaline chemical nickel-plating waste liquid, general nickel content is 3～5g/L, generally extracts through 2～4h and handles, and the nickel in the alkaline chemical nickel-plating waste liquid is reduced to≤0.08g/L by 3～5g/L.
In the alkali electroless nickel raffinate after step 1) is directly extracted nickel, by mass percentage, the content of remaining nickel ion≤0.9%.
In step 2) in, described RO membrane reverse osmosis is handled can adopt RO membrane reverse osmosis treatment unit; Carry out separating treatment through RO membrane reverse osmosis treatment unit, the nickel of remaining≤2% in the alkali electroless nickel raffinate can be separated with impurity such as sodium borohydrides, 65% alkali electroless nickel raffinate reaches discharging and cycling use of water standard, the alkali electroless nickel raffinate of the impurity such as nickeliferous and sodium borohydride with remaining 35% carries out thermal evaporation to be handled, described thermal evaporation is handled can adopt the thermal evaporation groove, the time that described thermal evaporation is handled can be 2～3h, and the time that described RO membrane reverse osmosis is handled and thermal evaporation is handled can be 6～8h; Described thermal evaporation groove can adopt stainless steel tank, adopts electric heater heating or steam heating.
Compare with the treatment process of existing alkaline chemical nickel-plating waste liquid, the present invention has following outstanding feature and technique effect.
1) owing in alkaline chemical nickel-plating waste liquid, adds catalytic reducer, make the discarded aging plating bath that loses the redox reaction ability recover stronger redox function again, by carrier the nickel ion that contains more than 98% in the plating bath is directly extracted metallic nickel (boracic 6%～8%), all the other are 1%～2% by the recycling of RO membrane reverse osmosis treatment unit and evaporator tank.
2) in nickeliferous waste liquid, the accumulation of boride increases along with the chemical nickel plating production cycle and accumulates and increase, and increases making chemical nickel-plating liquid redox reaction sedimentation velocity slack-off gradually, even lower.Because the nickel ion content of working fluid is at 4～6g/L in the chemical nickel plating groove, so when abandoning using, general 3～the 5g/L of nickel ion content, the present invention is by adding catalytic reducer in waste and old nickeliferous waste liquid, discarded chemical nickel-plating liquid redox reaction is recovered, temperature with plating bath is controlled at 80～90 ℃ simultaneously, and the pH value transfers to 〉=12, makes nickel ion in the waste and old plating bath 〉=be deposited on more than 98% metallic carrier.
3) because metal stress and nickel metal stresses gap are bigger, can be easy to the nickel metal is stripped down from loaded metal, not only cost is low, and the nickel resources utilization of getting back, and does not produce secondary pollution.
Embodiment
Following examples will the present invention is further illustrated.
Embodiment 1
The present invention includes following steps:
1) alkaline chemical nickel-plating waste liquid is injected the alkaline chemical nickel-plating waste liquid groove, in the alkaline chemical nickel-plating waste liquid groove, add catalytic reducer and nickel extraction carrier, the nickel ion in the alkaline chemical nickel-plating waste liquid 〉=98% is deposited on nickel extracts on the carrier;
The add-on of described catalytic reducer by volume, can be catalytic reducer: alkaline chemical nickel-plating waste liquid=0.3: 100; Described catalytic reducer can comprise sodium borohydride, quadrol, thiocarbamide, sulfenyl benzene a pair of horses going side by side thiazole and sulfuration vitriolate of tartar, in every liter of catalytic reducer, it is 0.1g/L, quadrol 30g/L that the concentration of each composition of catalytic reducer can be sodium borohydride, thiocarbamide 0.5g/L, sulfenyl benzene a pair of horses going side by side thiazole 0.01g/L, Potassium Thiosulphate 0.05g/L, Yu Weishui; Described nickel extracts carrier and adopts 40 series stainless steels, and what described nickel extracted carrier is shaped as cylinder shape or ball type; The temperature of described alkaline chemical nickel-plating waste liquid is 80～85 ℃, adopts ammoniacal liquor that the pH value of alkaline chemical nickel-plating waste liquid is transferred to 12.In alkaline chemical nickel-plating waste liquid, general nickel content is 3～5g/L, generally extracts through 2～4h and handles, and the nickel in the alkaline chemical nickel-plating waste liquid is reduced to≤0.1g/L by 3～5g/L.
In the alkali electroless nickel raffinate after step 1) is directly extracted nickel, by mass percentage, the content of remaining nickel ion≤0.9%.
2) will be after the alkali electroless nickel raffinate after step 1) is directly extracted nickel be through processing of RO membrane reverse osmosis and thermal evaporation processing, nickel ion 〉=98% in the alkaline chemical nickel-plating waste liquid is deposited on the nickel extraction carrier, produce solid slag, promptly finish and in alkaline chemical nickel-plating waste liquid, directly extract nickel.
Described RO membrane reverse osmosis is handled and is adopted RO membrane reverse osmosis treatment unit, for example the 0.5T/H RO reverse osmosis electroplating wastewater processing system of dispatching from the factory of platform source purification of water quality science and technology (Shenzhen) company; Carry out separating treatment through RO membrane reverse osmosis treatment unit, the nickel of remaining≤2% in the alkali electroless nickel raffinate can be separated with impurity such as sodium borohydrides, 65% alkali electroless nickel raffinate reaches discharging and cycling use of water standard, the alkali electroless nickel raffinate of the impurity such as nickeliferous and sodium borohydride with remaining 35% carries out thermal evaporation to be handled, described thermal evaporation is handled and is adopted the thermal evaporation groove, the time that described thermal evaporation is handled is 2～3h, and the time that described RO membrane reverse osmosis is handled and thermal evaporation is handled is 6～8h; Described thermal evaporation groove adopts stainless steel tank, adopts electric heater heating or steam heating.
From the 100L alkaline chemical nickel-plating waste liquid, extract 0.396kg metallic nickel boron alloy, the market price of the 0.396kg metallic nickel boron alloy that extracts is about 31.68 yuan, remove 11.6 yuan of processing costs, also have 20.08 yuan economic benefit income, the nickel resources utilization of getting back.As adopt chemical Treatment, and needing about 500 yuan of processing costs (need bury because of nickel-contained waste slag, secondary pollution is arranged again), the present device investment is about 1/10 of chemical Treatment equipment.
Embodiment 2
Similar to Example 1, its difference is in step 1), and the add-on of described catalytic reducer by volume, is catalytic reducer: alkaline chemical nickel-plating waste liquid=0.4: 100; In every liter of catalytic reducer, it is 2g/L, quadrol 20g/L that the concentration of each composition of catalytic reducer can be sodium borohydride, thiocarbamide 0.1g/L, sulfenyl benzene a pair of horses going side by side thiazole 1g/L, Potassium Thiosulphate 0.01g/L, Yu Weishui; What described nickel extracted carrier is shaped as reticular pattern or corrugation type; The temperature of described alkaline chemical nickel-plating waste liquid is 85～87 ℃, adopts ammoniacal liquor that the pH value of alkaline chemical nickel-plating waste liquid is transferred to 13.
Embodiment 3
Similar to Example 1, its difference is in step 1), and the add-on of described catalytic reducer by volume, is catalytic reducer: alkaline chemical nickel-plating waste liquid=0.5: 100; In every liter of catalytic reducer, it is 5g/L, quadrol 40g/L that the concentration of each composition of catalytic reducer can be sodium borohydride, thiocarbamide 1g/L, sulfenyl benzene a pair of horses going side by side thiazole 0.5g/L, Potassium Thiosulphate 0.1g/L, Yu Weishui; Described nickel extracts the sheet type that is shaped as of carrier; The temperature of described alkaline chemical nickel-plating waste liquid is 87～90 ℃, adopts ammoniacal liquor that the pH value of alkaline chemical nickel-plating waste liquid is transferred to 14.
Claims (10)
1. method of directly extracting nickel in alkaline chemical nickel-plating waste liquid is characterized in that may further comprise the steps:
1) alkaline chemical nickel-plating waste liquid is injected the alkaline chemical nickel-plating waste liquid groove, in the alkaline chemical nickel-plating waste liquid groove, add catalytic reducer and nickel extraction carrier;
2) will be after the alkali electroless nickel raffinate after step 1) is directly extracted nickel be through processing of RO membrane reverse osmosis and thermal evaporation processing, nickel ion 〉=98% in the alkaline chemical nickel-plating waste liquid is deposited on the nickel extraction carrier, produce solid slag, promptly finish and in alkaline chemical nickel-plating waste liquid, directly extract nickel.
2. a kind of method of in alkaline chemical nickel-plating waste liquid, directly extracting nickel as claimed in claim 1, it is characterized in that in step 1), the add-on of described catalytic reducer by volume, is catalytic reducer: alkaline chemical nickel-plating waste liquid=(0.3～0.5): 100.
3. a kind of method of in alkaline chemical nickel-plating waste liquid, directly extracting nickel as claimed in claim 1 or 2, it is characterized in that in step 1), described catalytic reducer comprises sodium borohydride, quadrol, thiocarbamide, sulfenyl benzene a pair of horses going side by side thiazole and Potassium Thiosulphate, in every liter of catalytic reducer, the concentration of each composition of catalytic reducer is that sodium borohydride is 0.1～5g/L, quadrol 20～40g/L, thiocarbamide 0.1～1g/L, sulfenyl benzene a pair of horses going side by side thiazole 0.01～1g/L, Potassium Thiosulphate 0.01～0.1g/L, Yu Weishui.
4. a kind of method of directly extracting nickel in alkaline chemical nickel-plating waste liquid as claimed in claim 1 is characterized in that in step 1) described nickel extracts carrier and adopts 40 series stainless steels or iron.
5. as claim 1 or 4 described a kind of methods of in alkaline chemical nickel-plating waste liquid, directly extracting nickel, it is characterized in that in step 1) that what described nickel extracted carrier is shaped as cylinder shape, reticular pattern, corrugation type, ball type or sheet type.
6. a kind of method of directly extracting nickel in alkaline chemical nickel-plating waste liquid as claimed in claim 1 is characterized in that in step 1) the temperature of described alkaline chemical nickel-plating waste liquid is 80～90 ℃.
7. a kind of method of directly extracting nickel in alkaline chemical nickel-plating waste liquid as claimed in claim 1 is characterized in that in step 1), the pH value of alkaline chemical nickel-plating waste liquid is adjusted to 〉=and 12.
8. a kind of method of directly extracting nickel in alkaline chemical nickel-plating waste liquid as claimed in claim 7 is characterized in that the adjusting of described adjusting employing ammoniacal liquor.
9. a kind of method of directly extracting nickel in alkaline chemical nickel-plating waste liquid as claimed in claim 1 is characterized in that in step 2) in, described RO membrane reverse osmosis is handled and is adopted RO membrane reverse osmosis treatment unit.
10. a kind of method of directly extracting nickel in alkaline chemical nickel-plating waste liquid as claimed in claim 1 is characterized in that in step 2) in, described thermal evaporation is handled and is adopted the thermal evaporation groove, and the time that described thermal evaporation is handled is 2～3h.
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| CN2010101316412A CN101805831B (en) | 2010-03-24 | 2010-03-24 | Method for directly extracting nickel in alkaline chemical nickel-plating waste liquid |
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| CN2010101316412A CN101805831B (en) | 2010-03-24 | 2010-03-24 | Method for directly extracting nickel in alkaline chemical nickel-plating waste liquid |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311196A (en) * | 2011-08-22 | 2012-01-11 | 无锡鼎亚电子材料有限公司 | Method of zero discharge of electroplating wastewater containing nickel and apparatus thereof |
| CN103736994A (en) * | 2014-01-15 | 2014-04-23 | 南京德磊科技有限公司 | Electroless nickel plating solution treatment method |
| CN103962574A (en) * | 2014-04-30 | 2014-08-06 | 江苏科技大学 | Method for preparing porous nickel particles through nickel ions in hydrothermal hydrogen gas reduction waste water |
| CN106148709A (en) * | 2016-08-12 | 2016-11-23 | 星特殊化学品（新加坡）有限公司 | Nickel recovery and treatment method in chemical nickel plating waste solution |
| CN107381502A (en) * | 2017-08-31 | 2017-11-24 | 青岛科技大学 | Method based on metal ion acid waste water system preparing hydrogen by sodium borohydride hydrolysis |
| CN109928554A (en) * | 2019-03-27 | 2019-06-25 | 东莞市逸轩环保科技有限公司 | The system and technique of a kind of alkaline zinc plating waste water zinc recovering, alkali collection and waste water closed cycle |
| CN110304753A (en) * | 2018-03-27 | 2019-10-08 | 日照皓诚电子科技有限公司 | A kind of processing method of chemical nickeling ageing waste liquid |
| CN114956374A (en) * | 2022-05-12 | 2022-08-30 | 李正新 | Method for treating hypophosphorous acid in chemical nickel plating wastewater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2125105C1 (en) * | 1996-12-06 | 1999-01-20 | Внедренческий научно-экспериментальный центр "Экотур"(ИП ВНЭЦ) | Method of nickel recovery from sheet solutions of electroplating |
| JPH11172497A (en) * | 1997-12-15 | 1999-06-29 | Nippon Steel Corp | Recovery of metal from plating washing water |
| CN101139659A (en) * | 2007-10-24 | 2008-03-12 | 上海轻工业研究所有限公司 | Method for reclaiming nickel from acidic nickel plating waste water |
-
2010
- 2010-03-24 CN CN2010101316412A patent/CN101805831B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2125105C1 (en) * | 1996-12-06 | 1999-01-20 | Внедренческий научно-экспериментальный центр "Экотур"(ИП ВНЭЦ) | Method of nickel recovery from sheet solutions of electroplating |
| JPH11172497A (en) * | 1997-12-15 | 1999-06-29 | Nippon Steel Corp | Recovery of metal from plating washing water |
| CN101139659A (en) * | 2007-10-24 | 2008-03-12 | 上海轻工业研究所有限公司 | Method for reclaiming nickel from acidic nickel plating waste water |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311196A (en) * | 2011-08-22 | 2012-01-11 | 无锡鼎亚电子材料有限公司 | Method of zero discharge of electroplating wastewater containing nickel and apparatus thereof |
| CN103736994A (en) * | 2014-01-15 | 2014-04-23 | 南京德磊科技有限公司 | Electroless nickel plating solution treatment method |
| CN103736994B (en) * | 2014-01-15 | 2015-11-18 | 南京德磊科技有限公司 | A kind of processing method of chemical nickel-plating solution |
| CN103962574A (en) * | 2014-04-30 | 2014-08-06 | 江苏科技大学 | Method for preparing porous nickel particles through nickel ions in hydrothermal hydrogen gas reduction waste water |
| CN103962574B (en) * | 2014-04-30 | 2016-04-13 | 江苏科技大学 | In hydro-thermal hydrogen reducing waste water, nickel ion prepares the method for nickel porous particulate |
| CN106148709A (en) * | 2016-08-12 | 2016-11-23 | 星特殊化学品（新加坡）有限公司 | Nickel recovery and treatment method in chemical nickel plating waste solution |
| CN106148709B (en) * | 2016-08-12 | 2018-01-05 | 星特殊化学品（新加坡）有限公司 | Nickel recovery and treatment method in chemical nickel plating waste solution |
| CN107381502A (en) * | 2017-08-31 | 2017-11-24 | 青岛科技大学 | Method based on metal ion acid waste water system preparing hydrogen by sodium borohydride hydrolysis |
| CN110304753A (en) * | 2018-03-27 | 2019-10-08 | 日照皓诚电子科技有限公司 | A kind of processing method of chemical nickeling ageing waste liquid |
| CN109928554A (en) * | 2019-03-27 | 2019-06-25 | 东莞市逸轩环保科技有限公司 | The system and technique of a kind of alkaline zinc plating waste water zinc recovering, alkali collection and waste water closed cycle |
| CN114956374A (en) * | 2022-05-12 | 2022-08-30 | 李正新 | Method for treating hypophosphorous acid in chemical nickel plating wastewater |
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