Rare and precious metal separation device and method

Abstract

The invention provides a device and method for separating and extracting rare and precious metals in many fields, such as a gravity field, an electric field and a magnetic field. In the device and themethod, a mechanical separation mode as a main is properly assisted by a chemical method, the rare and precious metals obtained after separation and extraction are cleaner, and the energy consumptionand pollution are reduced to the greatest extent.

Description

technical field [0001] The present application relates to a metal separation device and method, in particular to a rare and precious metal separation device and method. Background technique [0002] At present, with the advancement of science and technology, various high-tech products, especially electronic products, are being updated faster and faster, and the core components of these products, such as circuit boards, often contain parts made of rare metals and precious metal elements, so There is enormous value in recycling these products. One of the difficulties in recycling these electronic waste products is how to separate and extract rare and precious metals. At present, metallurgical recycling methods and electrochemical recycling methods are commonly used. It may cause secondary environmental pollution; in order to reduce pollution and reduce costs, more and more attention has been paid to the extraction of metals by mechanical physical separation. Among them, Beiji...

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Problems solved by technology

One of the difficulties in recycling these electronic waste products is how to separate and extract rare and precious metals. At present, metallurgical recycling methods and electrochemical recycling methods are commonly used. It may cause secondary environmental pollution; in order to reduce pollution and reduce costs, more and more attention has been paid to the extraction of metals by mechanical physical separation. Among them, Beijing University of Science and Technology has invented a technology for separating metals using supergravity (publication number is CN 106702164 A, publication date May 24, 2017), used to extract tin, lead, aluminum, zinc, and copper metals from electronic waste, achieving the purpose of resource recycling, but this technology does not propose a separation process for rare and precious metals, and the recovery value is low , and the pure use of supergravity centrifugal separation is likely to cause low purity of the separated metals, insufficient heating of thermocouples, and difficulty in quickly obtaining high temperatures, and no further specific treatment process for waste gas and solid residues, and it is impossible to make an accurate assessment of environmental pollution. In addition, the separation process needs to be separated multiple times to obtain different metals, which is inefficient

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