Technique for producing high activity nickel cake with regeneration of waste material containing nickle as raw material

A high activity, waste technology, applied in the direction of photographic process, photographic auxiliary process, process efficiency improvement, etc., can solve the problems of lack of mature experience, little knowledge of active nickel production process and methods, etc., to reduce pollution and alleviate resources Insufficient effective supply and the effect of saving metal nickel

Active Publication Date: 2007-10-31
XIANGYANG HUATONG CHEM
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  • Description
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Problems solved by technology

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Using the precipitate produced by an electroplating factory to treat the nickel plating bath as raw material, it has been tested that nickel is 15%, iron is about 0.5%, copper is 0.3%, calcium is 0.1%, zinc is 0.1%, lead is 0.05%, a small amount of manganese, chromium and arsenic, and others are CO 3 2- , OH - , SO 4 2- , Cl - and other anions.

[0033] 1, 10 kilograms of above-mentioned nickel-containing waste materials are put in 50 liters buckets, add 5200 milliliters of sulfuric acid (sulfuric acid: water=1: 3) under stirring, to solution pH=2.0-3.0, suction filtration, obtain about 25 liters of nickel-containing filtered solutions, Wash the precipitate three times with about 10 liters of tap water, and the washing water is used for the next dilution of sulfuric acid;

[0034] 2. Add about 100 ml of 30% hydrogen peroxide to the nickel-containing filtered solution, stir for 60 minutes, adjust the pH of the filtrate to about 5.0 with dilute soda ash or caustic so...

Embodiment 2

[0044] The raw material is nickel shavings that are cut and processed after nickel plating on copper plates in an electroplating factory. After testing, nickel is 50.6%, copper is 28.3%, iron is about 1.5%, zinc is 0.01%, lead is 0.01%, manganese, chromium and arsenic are small, and others are cut off. Use engine oil, cloth strips, sawdust, etc.

[0045] 1. Take 100 kilograms of the above-mentioned nickel shavings, place them on an electric heating plate and heat them to burn (remove oil), and then press them into a block of 200mm×150mm×40mm; add 90 liters of 20% sulfuric acid to a 100-liter electroplating tank, The plate is the cathode, and the massive nickel scraps are the anode. Electrolyze for about 120 hours under 20A current until the solution pH=1.0-2.0, and filter with suction to obtain about 85 liters of filtered solution, about 200 kilograms of nickel sulfate crystals, and 25 kilograms of copper powder;

[0046] 2. 200 kilograms of nickel sulfate crystals are dissolv...

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PUM

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Abstract

The invention discloses a preparing method of high activity nickel cake, which comprises the following steps: 1 choosing nickel regenerating waste as raw material; dissolving nickel; 2 filtering selectively; 3 oxidizing Fe2+ to Fe3+; adjusting pH value of system to 4. 0-6. 0 with base; depositing ferric; separating; removing; 4 adjusting pH value of system to 1. 0-6. 0; adding into decoppering agent at 0-60 deg. c; depositing ferric; separating; removing; 5 removing zinc with active nickel carbonate; removing impurity with organic solvent extraction method; óÌ adding soda solution into nickel solution; producing nickel carbonate; ó› adding into amido sulfonic acid; allocating electrolytic solution; óÓ adding the electrolytic solution into electrolyser; getting the product. This product possesses high active, which can increase availability ratio of resource.

Description

technical field [0001] The invention relates to a process for producing high-activity nickel cake for electroplating by using nickel-containing waste regeneration as raw material. Background technique [0002] In recent years, with the rapid development of the national economy, automobile and construction industries, coupled with the country's policy to vigorously support the development of the stainless steel industry, my country's nickel consumption has increased dramatically; at the same time, with the gradual increase in global manufacturing centers Transferring to my country, the matching nickel-consuming production process also began to transfer to my country, which directly led to a large increase in the amount of nickel used in my country's corresponding industries. According to the prediction of relevant persons, by 2006 and 2010, my country's nickel consumption demand will reach 160,000 tons and 280,000 tons respectively, while domestic nickel production is estimate...

Claims

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Application Information

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IPC IPC(8): C25C1/08
CPCY02P10/20
Inventor 赵成显王敏
Owner XIANGYANG HUATONG CHEM
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