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Method for recovering metals from secondary materials and other materials comprising organic constituents

A technology of secondary raw materials and recycling methods, applied in the field of metal recycling, which can solve the problems of high cost cleaning steps, etc.

Inactive Publication Date: 2017-08-01
奥陆铜业集团股份公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, cost-prohibitive cleaning steps are required in order to recover toxic substances from the exhaust gas

Method used

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  • Method for recovering metals from secondary materials and other materials comprising organic constituents

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Embodiment Construction

[0018] Complex secondary raw materials with organic proportions are, in addition to sampling for classical property measurements, also checked with regard to their energy content and proportion of slag formers in order to obtain information for guiding the production process. For the production capacity achievable for secondary raw materials with an organic proportion, the energy content and thus the amount of metal recovery are important. In striving to achieve low viscosity and precious metal content, relevant slagging substances (Fe / FeO, SiO 2 、Al 2 o 3 , CaO, Na 2 O, K 2 O, Mn, Cr) information is important for guiding slagging.

[0019] Among these raw materials, Al 2 o 3 , SiO 2 and the same oxidation to Al which always contains 2 o 3 The high content of refractory components in the form of metallic aluminum leads to a high-melting, high-viscosity residue during such a melting process, which in particular prevents the obtaining of a residue with a low noble metal...

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Abstract

The invention relates to a method for recovering metals, such as noble metals or copper, from secondary materials and other materials comprising organic constituents, wherein the organic components are extracted from the secondary materials and other material by means of thermal treatment in a process chamber and the secondary materials and other materials comprising organic constituents are prepared for the recovery process.

Description

technical field [0001] The present invention relates to a method for the recovery of metals, such as precious metals or copper, from secondary raw materials and other materials having an organic content, wherein the secondary raw materials and other materials are removed from the organic content by heat treatment in a processing space and prepared for the recovery process with organic Secondary raw materials and other materials for ingredients. Background technique [0002] Processes are known in the prior art for the recovery of metals from secondary raw materials and other materials with an organic content in continuous and discontinuous operation. At this point, the concept of continuity usually involves both the feeding method of the secondary raw material and the process itself. However, a distinction can also be made between the continuous or discontinuous feeding of the secondary raw material and the continuous or discontinuous heat treatment in the treatment space. ...

Claims

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Application Information

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IPC IPC(8): C22B1/248C22B7/00C22B7/04C22B15/06C22B25/06
CPCC22B1/005C22B1/248C22B7/002C22B7/04C22B15/0041C22B25/06Y02P10/20F23N3/002F23J15/02C22B1/216C22B7/00C22B15/0056C22B5/04C22B5/12C22B15/0054
Inventor M·艾汉M·埃申
Owner 奥陆铜业集团股份公司
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