首页> 外国专利> IMPROVEMENTS IN OR RELATING TO RECOVERY OF ZINC FROM ZINC BY-PRODUCT COMPOUNDS,SUCH AS THE SKIMMINGS FROM GALVANISING INDUSTRY,WASTE FROM THE ZINC OXIDE MANUFACTURING PLANTS AND BY-PRODUCT ZINC-HYDROXIDE OR ZINC OXIDE FROM THE CHEMICAL INDUSTRY

IMPROVEMENTS IN OR RELATING TO RECOVERY OF ZINC FROM ZINC BY-PRODUCT COMPOUNDS,SUCH AS THE SKIMMINGS FROM GALVANISING INDUSTRY,WASTE FROM THE ZINC OXIDE MANUFACTURING PLANTS AND BY-PRODUCT ZINC-HYDROXIDE OR ZINC OXIDE FROM THE CHEMICAL INDUSTRY

机译：从锌副产品化合物中回收锌的改进或与之有关，例如从镀锌工业中提取的香料，从氧化锌生产厂中提取的锌以及从化工行业中分离出的氧化锌或氧化锌

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摘要

A process for the recovery of zinc from zinc bearing materials by electrolysis of a suspension of waste zinc compounds such as galvaniser''s ash and skimmings, zinc hydroxide or oxide from chemical industry and paint industry in an electrolytic solution with lead alloy anodes and aluminium cathodes from which zinc is deposited on the cathode and wherein the zinc compound is continuously added to the slurry to replenish the metal concentration characterised in that the electrolysis of the waste zinc compounds is carried out in an electrolytic medium of awueous sulphuric acid of strength 5 to 25% (W/V) and the electrolysis of the suspension is carried out at a current density of 2.5 to 20 A/dmSUP2/SUP the temperature of electrolysis 25 to 60degrees C, the concentration of zinc in the electrolyte between 20 and 100 g/l.

机译：一种通过在含铅合金阳极和铝的电解溶液中电解废锌化合物（如电镀锌的灰和撇渣，化学工业和油漆工业的氢氧化锌或氧化物）的悬浮液，从含锌材料中回收锌的方法阴极，锌从阴极沉积在阴极上，其中锌化合物连续添加到浆料中以补充金属浓度，其特征在于，废锌化合物的电解在强度为5至5的无水硫酸的电解介质中进行25％（W / V），在25至60摄氏度的电解温度下，在2.5至20 A / dm ^{2 的电流密度下进行悬浮液的电解，电解质在20至100克/升之间。}

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公开/公告号IN142706B

专利类型
公开/公告日1977-08-20

原文格式PDF
申请/专利权人 COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH;
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申请/专利号IN1240CA1974
发明设计人 UDUPA HANDADY VENKATAKRISHNA;RAO PENNAGARAM VYASA RAO VASUDEVA;VIJAYAVALLI RANGASWAMY;ALAGAPPAN ALAGAPPAN;ALAGUSUNDARAM RAMIAH;
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申请日1974-06-06
分类号C22D1/22;
国家 IN
入库时间 2022-08-23 00:50:40

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