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Process for comprehensively recovering valuable metals from solid dangerous waste residues through wet smelting

A technology of hydrometallurgy and valuable metals, applied in wet separation, solid separation, glass recycling, etc., can solve problems such as no substantial progress, reduce construction investment and slag heap costs, have obvious social benefits, and achieve indicators stable effect

Inactive Publication Date: 2021-09-17
周政扬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] With the continuous advancement of social science and technology, the non-ferrous metal industry and related professional colleges and universities at home and abroad have researched and developed various flotation methods for solid hazardous waste slag from hydrometallurgy. Although there are certain effects, no substantial progress has been made.

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  • Process for comprehensively recovering valuable metals from solid dangerous waste residues through wet smelting

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Embodiment Construction

[0015] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

[0016] In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0017] Such as figure 1 As shown, a process for the comprehensive recovery of valuable metals from solid hazardous waste slag in hydrometallurgy comprises the following steps:

[0018] (1) Th...

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Abstract

The invention discloses a process for comprehensively recovering valuable metals from solid dangerous waste residues through wet smelting. The process comprises the following steps that (1) raw ores are subjected to magnetic separation, and the materials after screening are iron ore concentrate and a mixture A; (2) the mixture A is subjected to zinc flotation, and the materials after screening are zinc concentrate and a mixture B; and (3) the mixture B is subjected to gravity separation, the materials after screening is subjected to lead flotation, and a mixture C obtained after lead flotation is lead concentrate and tailings. Iron, sulfur, zinc sulfide, zinc oxide, lead sulfide, lead oxide and other valuable metals in the wet smelting solid dangerous waste slag are effectively recovered; the tailings reach the conventional flotation tailings heavy metal discharge standard; and the safety and environmental protection problems are effectively solved.

Description

technical field [0001] The invention relates to the technical field of wet smelting solid hazardous waste residues, in particular to a process for comprehensively recovering valuable metals from wet smelting solid hazardous waste residues. Background technique [0002] my country is the kingdom of non-ferrous metals and is rich in mineral resources. However, with the continuous development of society and the increasing demand for various valuable metals, a large amount of solid hazardous waste from hydrometallurgy has been produced all over the country, which has brought extreme pressure on environmental protection work. difficulty. However, my country lacks effective processing technology for various valuable metals in mineral resources, especially solid hazardous waste residues of hydrometallurgy, and has not been rationally utilized. In addition to a large amount of low-grade refractory oxygen-sulfur mixed ores, there is also a large amount of solid hazardous waste slag f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B9/06
CPCB03B7/00B03B9/06Y02W30/52Y02W30/60
Inventor 周政扬
Owner 周政扬