CN101892389A - Method for preparing nano metallic nickel in spent electroless nickel plating solution - Google Patents

Method for preparing nano metallic nickel in spent electroless nickel plating solution Download PDF

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Publication number
CN101892389A
CN101892389A CN2010102264839A CN201010226483A CN101892389A CN 101892389 A CN101892389 A CN 101892389A CN 2010102264839 A CN2010102264839 A CN 2010102264839A CN 201010226483 A CN201010226483 A CN 201010226483A CN 101892389 A CN101892389 A CN 101892389A
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China
Prior art keywords
nickel plating
plating solution
waste solution
plating waste
electroless nickel
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Pending
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CN2010102264839A
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Chinese (zh)
Inventor
王昊杨
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王昊杨
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Priority to CN2010102264839A priority Critical patent/CN101892389A/en
Publication of CN101892389A publication Critical patent/CN101892389A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

The invention discloses a method for preparing nano metallic nickel in spent electroless nickel plating solution. The method comprises the following steps: adding 0.20 to 0.33 grams of reducer thiourea dioxide into every 100ml of the spent electroless nickel plating solution; then, adjusting the spent electroless nickel plating solution to be alkalic with 3 to 7 grams of sodium hydroxide, and heating the spent electroless nickel plating solution to the temperature of between 70 and 100 DEG C; reacting at constant temperature for 5 to 20 minutes, and cooling the solution to the temperature of between 10 and 30 DEG C; filtering the spent electroless nickel plating solution; and washing the filtered substances with deionized water and absolute ethanol respectively; and drying the substances in a vacuum drier to prepare the nano metallic nickel. The method effectively solves the problem of spent electroless nickel plating solution pollution, simultaneously recycles noble metal nickel, and realizes double assurance of social benefit and economic benefit for enterprises. Furthermore, the reducer thiourea dioxide has lower requirement to the reaction condition, less investment, no toxic or side effect and environmental protection.

Description

The method for preparing nano metal nickel in the chemical nickel plating waste solution
Technical field
The present invention relates to the extraction field of heavy metal, prepare the method for nano metal nickel in especially a kind of chemical nickel plating waste solution.
Background technology
Heavy metal contamination has become the great environmental problem that threatens human health and life security, and its harm is more and more paid attention to by people.Because it is more and more to produce the enterprise of crystal resonator pedestal, the content of carcinostatic substance nickel is higher in the chemical nickel plating waste solution that they produced, can be present, during nickel in Treatment of Electroless Nickel Plating Wastewater, the reductive agent that adopts is hydrogen and hydrazine mostly, after nickel forms the complex compound of ammonia, the nickel of hydrogen in can reducing solution under High Temperature High Pressure, shortcoming is that facility investment is bigger, and reaction conditions requires also high, and bigger risk is arranged; Hydrazine is the reductive agent commonly used of preparation metal nickel powder, and extremely poison has hormesis to eyes, can cause the retardance inflammation, and skin and mucous membrane are also had the intensive corrosive nature.
Summary of the invention
The technology of the present invention task is at the deficiency in the above-mentioned technology, and the method for preparing nano metal nickel in a kind of chemical nickel plating waste solution is provided.
Technical solution technical scheme that problem adopts of the present invention is: at first, the reductive agent thiourea peroxide that in per 100 milliliters chemical nickel plating waste solution, adds 0.20 gram-0.33 gram, use 3 grams-7 gram sodium hydroxide then described chemical nickel plating waste solution is adjusted into alkalescence, simultaneously this chemical nickel plating waste solution is heated to 70 ℃-100 ℃, isothermal reaction 5 minutes-20 minutes, at this moment, be cooled to 10 ℃-30 ℃, described chemical nickel plating waste solution is filtered, again the object that filters out is used deionized water and absolute ethanol washing respectively, in vacuum drier, dry at last, obtain nano metal nickel.
The reaction formula that described reductive agent thiourea peroxide is produced nano metal nickel is---
O 2S=C(NH 2) 2+3H 2O+2Ni 2+====0=C(NH 2) 2+H 2SO 4+2Ni+4H +
The beneficial effect that the present invention can bring is:
(1) efficiently solves the pollution problem of chemical nickel plating waste solution;
(2) reclaimed noble metal nickel simultaneously;
(3) use the reductive agent reaction conditions lower, less investment, and have no side effect, environmental protection.
Embodiment
At first, add the reductive agent thiourea peroxide of 0.20 gram-0.30 gram in per 100 milliliters chemical nickel plating waste solution, (the interpolation content of this reductive agent is too much unsuitable, experimental results show that when content is too much, nickel ion concentration in the chemical nickel plating waste solution can rise on the contrary, sees the following form 1)
Thiourea peroxide (g)
Table 1
Use 3 grams-7 gram sodium hydroxide then and described chemical nickel plating waste solution is adjusted into alkalescence, (experimental data shows that alkalescence is big more, and the nickel ion concentration in the chemical nickel plating waste solution is low more, sees the following form 2)
Table 2
Simultaneously this chemical nickel plating waste solution is heated to 70 ℃-100 ℃, isothermal reaction 5 minutes-20 minutes, at this moment, be cooled to 10 ℃-30 ℃, described chemical nickel plating waste solution is filtered, again the object that filters out is used deionized water and absolute ethanol washing respectively, in vacuum drier, dry at last, obtain nano metal nickel.
The reaction formula that described reductive agent thiourea peroxide is produced nano metal nickel is---
O 2S=C(NH 2) 2+3H 2O+2Ni 2+====0=C(NH 2) 2+H 2SO 4+2Ni+4H +
As the nickel in the reductive agent extraction chemical nickel plating waste solution, clearance reaches more than 97%, for the nickel that still remains in the waste liquid, can adopt heavy metals trapping precipitant-DTCR with thiourea peroxide, and the nickel ion concentration in waste liquid reaches discharging standards.The use of DTCR belongs to prior art, in this just no longer too much narration.
The present invention had both efficiently solved the pollution problem of chemical nickel plating waste solution, had reclaimed noble metal nickel again simultaneously, and was used for enterprise, realized the double shield of social benefit and economic benefit.And the reductive agent thiourea peroxide that uses reaction conditions is required lower, less investment has no side effect, environmental protection.

Claims (3)

1. the method for preparing nano metal nickel in the chemical nickel plating waste solution, it is characterized in that: at first, the reductive agent thiourea peroxide that in per 100 milliliters chemical nickel plating waste solution, adds 0.20 gram-0.33 gram, then described chemical nickel plating waste solution is adjusted into alkalescence, simultaneously this chemical nickel plating waste solution is heated to 70 ℃-100 ℃, isothermal reaction 5 minutes-20 minutes, at this moment, be cooled to 10 ℃-30 ℃, described chemical nickel plating waste solution is filtered, again the object that filters out is used deionized water and absolute ethanol washing respectively, in vacuum drier, dry at last, obtain nano metal nickel.
2. prepare the method for nano metal nickel in the chemical nickel plating waste solution according to claim 1, it is characterized in that: in described chemical nickel plating waste solution, add 3 grams-7 gram sodium hydroxide, make it be alkalescence.
3. prepare the method for nano metal nickel in the chemical nickel plating waste solution according to claim 1, it is characterized in that: the reaction formula that described reductive agent thiourea peroxide is produced nano metal nickel is---
O 2S=C(NH 2) 2+3H 2O+2Ni 2+====0=C(NH 2) 2+H 2SO 4+2Ni+4H +
CN2010102264839A 2010-07-14 2010-07-14 Method for preparing nano metallic nickel in spent electroless nickel plating solution Pending CN101892389A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102264839A CN101892389A (en) 2010-07-14 2010-07-14 Method for preparing nano metallic nickel in spent electroless nickel plating solution

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CN2010102264839A CN101892389A (en) 2010-07-14 2010-07-14 Method for preparing nano metallic nickel in spent electroless nickel plating solution

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102327781A (en) * 2011-07-20 2012-01-25 合肥工业大学 Method for preparing nano-nickel/carbon fiber (Ni/CF) catalyst from chemical nickel-plating waste liquid
CN105060561A (en) * 2015-08-12 2015-11-18 太仓中化环保化工有限公司 Method for removing heavy metal ions in wastewater
CN105149610A (en) * 2015-09-10 2015-12-16 苏州联科纳米净化科技有限公司 Process for treating chemical nickel-plating ageing solution
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

Citations (4)

* Cited by examiner, † Cited by third party
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
CN101580317A (en) * 2009-06-01 2009-11-18 邱致忠 Nickel-containing wastewater treatment technology

Patent Citations (4)

* Cited by examiner, † Cited by third party
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
CN101580317A (en) * 2009-06-01 2009-11-18 邱致忠 Nickel-containing wastewater treatment technology

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102327781A (en) * 2011-07-20 2012-01-25 合肥工业大学 Method for preparing nano-nickel/carbon fiber (Ni/CF) catalyst from chemical nickel-plating waste liquid
CN102327781B (en) * 2011-07-20 2013-01-09 合肥工业大学 Method for preparing nano-nickel/carbon fiber (Ni/CF) catalyst from chemical nickel-plating waste liquid
CN105060561A (en) * 2015-08-12 2015-11-18 太仓中化环保化工有限公司 Method for removing heavy metal ions in wastewater
CN105149610A (en) * 2015-09-10 2015-12-16 苏州联科纳米净化科技有限公司 Process for treating chemical nickel-plating ageing solution
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

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