Method for desiliconizing cobalt white alloy

A cobalt white alloy and desiliconization technology, which is applied in the field of high-purity cobalt salt and preparation of electric copper, can solve the problems of high energy consumption, large energy consumption, long process, etc., and achieves high metal recovery rate, simple operation and easy processing. Effect
CN102321824AInactive Publication Date: 2012-01-18BEIJING GENERAL RES INST OF MINING & METALLURGY +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING GENERAL RES INST OF MINING & METALLURGY
Publication Date
2012-01-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for desiliconizing cobalt white alloy, relating to a method for preparing electrolyzed copper and high-purity cobalt salt by taking high-silicon cobalt white alloy as raw material. The method is characterized in that the desiliconizing process sequentially comprises the following steps of: (1) melting cobalt white alloy; (2) adding a desiliconization agent for reaction; (3) then adding a slag former for slagging; (4) separating slag from melt; and (5) atomizing the separated melt into alloy powder used for recovering nickel, cobalt and copper. In the method fordesiliconizing cobalt provided by the invention, the slag former is available and is low in price; the desiliconization agent can be waste cobalt oxide, waste copper oxide, waste lithium cobaltite, crude cobaltic hydroxide and the like, thus being beneficial to comprehensive recovery of raw materials; alloy after desiliconization is directly atomized into powder; the alloy after desiliconization can stably produce alloy powder with silicon content of being less than 2%. The silicon content is less than 3%, the conventional leaching method can be adopted for recovering cobalt and copper, posttreatment is easy, operation is simple and easy, metal recovery rate is high, and application prospect is good.
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Description

technical field

[0001] A method for desiliconization of cobalt white alloy relates to a method for preparing electric copper and high-purity cobalt salt by using high-silicon cobalt white alloy as a raw material. Background technique

[0002] my country is a country that lacks cobalt resources, and about 90% of the cobalt raw materials required for production depend on foreign imports. In March 2007, the Congo formulated a policy of restricting exports, prohibiting the export of raw ore, and only allowing local processing into primary smelted metal products (intermediate products of cobalt smelting or cobalt white alloy) to be exported. my country relies heavily on imported cobalt concentrates to be processed into cobalt salts The situation will be gradually reversed to import cobalt smelting intermediate products or use cobalt white alloy as raw material. In the Congo, water cobalt ore containing 2-10% copper and 3-8% cobalt is used as raw material, and blast furnace reduct...

Claims

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