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A multi-metal full-path full-valence separation method

A separation method and a full-path technology, applied in photography technology, equipment, photography auxiliary technology, etc., can solve the problems of large changes in gold and silver components, unsuitable extraction of valuable metals from copper-containing waste, complex sources of copper-containing waste, etc., to achieve The effect of many types of recovery, significant economy, and high metal recovery rate

Active Publication Date: 2017-11-07
江西自立环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sources of copper-containing wastes are complex, and the anode slime produced by electrolytic refining of copper-containing wastes has a large change in gold and silver components compared with ore copper anode slime. lead 17%, antimony 8%), traditional technology is not suitable for extracting valuable metals in copper-containing waste anode slime

Method used

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  • A multi-metal full-path full-valence separation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Step 1: Regenerative reduction furnace reduction smelting. The feeding ratio is: copper waste 65% (including copper slag brick 40%, copper powder ball 2%, copper-containing waste and residual pole 23%), flux 23% (including limestone 15%, quartz stone 8%), reducing agent 12% (coke or carbon). According to the operating system of the regenerative reduction furnace, the valuable metals in the materials are reduced and smelted, the air is blown to support the combustion, the flux and the oxides in the materials are slagged, and the valuable metals are reduced when the melt passes through the coke or carbon layer, and settle to the bottom of the furnace and the slag Separation to ensure that the slag contains less than 3% copper, nickel, lead, tin, etc., zinc and some metal vapors of lead and tin enter the flue with the flue gas, react with oxygen in the air, and enter the flue dust in the form of oxides. Release the copper liquid from the copper liquid outlet, and obtain a...

Embodiment 2

[0051] Step 1: Regenerative reduction furnace reduction smelting. The feeding ratio is: copper waste 75% (including copper slag brick 40%, copper powder ball 10%, copper-containing waste and residual pole 20%), flux 18% (including limestone 12%, quartz stone 6%), reducing agent 12% (coke or carbon). According to the operating system of the regenerative reduction furnace, the valuable metals in the materials are reduced and smelted, the air is blown to support the combustion, the flux and the oxides in the materials are slagged, and the valuable metals are reduced when the melt passes through the coke or carbon layer, and settle to the bottom of the furnace and the slag Separation to ensure that the slag contains less than 3% copper, nickel, lead, tin, etc., zinc and some metal vapors of lead and tin enter the flue with the flue gas, react with oxygen in the air, and enter the flue dust in the form of oxides. Release the copper liquid from the copper liquid outlet, and obtain ...

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Abstract

The invention discloses a full-path full-valence separation method for multifarious metal. Low-grade waste containing copper and copper slag serves as a raw material. The separation method comprises the following main steps that 1, the raw material is subjected to reduction smelting through a regeneration reduction furnace so that a black copper anode can be obtained, the raw material is subjected to electrolytic refining so that a metal cathode copper product and a crude nickel sulfate product can be obtained, and thus copper and nickel in the raw material are separated and recycled; 2, slag is leached out of copper anode mud and zinc and is subjected to reduction smelting through an electric furnace so that tin-lead-antimony alloy can be obtained, the tin-lead-antimony alloy is smelted through a vacuum furnace to be separated so that a antimony-lead alloy product and crude tin can be obtained, the crude tin is subjected to electrolytic refining so that refined tin can be obtained, that is, a tin ingot product is obtained, and hence tin, lead and antimony are separated and recycled; 3, a zinc ingot product is obtained by recycling smelting fume through a 'leaching- extraction- electrodeposition' method, so that the zinc, the tin and the lead are separated, and the zinc is recycled; and 4, tin anode mud is sent to a precious metal recycling factory as a precious metal enrichment material. According to the full-path full-valence separation method for the multifarious metal, the multifarious metal is completely separated, and remarkable economic benefits, environmental benefits and social benefits are achieved.

Description

technical field [0001] The invention provides a multi-metal full-path full-price separation method, which belongs to the fields of solid waste recycling and non-ferrous metal metallurgy, and specifically relates to copper-containing solid waste recycling, multiple metal separation and comprehensive reuse technology. Background technique [0002] my country's copper ore resources are in short supply, which cannot meet the needs of national economic development. In order to make up for the shortage of copper resources, for many years, my country has been importing a large amount of copper concentrate and also a large amount of copper-containing waste. According to relevant data, so far, my country has accumulated more than 200 million tons of waste non-ferrous metal resources in the consumption field, of which about 18 million tons of waste copper, most of which are high-grade red copper, bronze, copper alloys and electronic materials. Copper waste, and a small amount of low-g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B7/00C22B15/00C22B23/00C22B25/06C22B13/00C22B30/02C22B11/00C22B19/30C25C1/12C25C1/14C25C1/16
CPCC22B7/00C22B11/00C22B13/00C22B15/00C22B19/30C22B23/00C22B25/06C22B30/02C25C1/12C25C1/14C25C1/16Y02P10/20
Inventor 叶标路永锁宁建平施文山吴金宝李华安程进辰
Owner 江西自立环保科技有限公司
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