Method for extracting high arsenic complicated golden ore concentrate multielement
An extraction method and technology for gold concentrate, applied in the field of metallurgy, can solve the problems of equipment requirements for the inability to comprehensively recover harmful elements, low recovery rate of valence elements, etc., and achieve the effects of wide adaptability of raw materials, high comprehensive recovery efficiency, and increased utilization rate.
Active Publication Date: 2009-09-02
SHANDONG HUMON SMELTING
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a kind of extraction method of high arsenic complex gold concentrate multi-element, is to adopt the organic combination of pre-roasting arsenic removal and oxygen-enriched bottom blowing smelting to make matte gold trapping technology, It mainly solves the problems of low recovery rate of valuable elements, inability to comprehensively recover harmful elements, and high equipment requirements in the existing processing methods for high-arsenic complex gold concentrates. The method of the present invention can process gold, silver, arsenic, copper, sulfur, and lead , zinc and other multi-element high-arsenic complex gold concentrates, in addition to extracting gold, it can also extract a variety of valuable metals
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Embodiment 1
[0025] Example 1, see figure 1 , 2 , select multi-element complex gold concentrate containing gold, silver, arsenic, copper, sulfur, lead, zinc, etc. (see Table 1 for the composition of the gold concentrate), and the process steps are as follows.
[0026] Table 1
[0027] Yuan
white Cu Fe S SiO 2 CaO MgO content
(%) 7.38 27.3
2 32.7
8
8.61
2.25
1.5 Yuan
white Pb al 2 o 3 Zn As Au* Ag* content
(%) 1.12 2.0 1.56 2.20 33.6
3 230.
02
[0028] *The units of Au and Ag are g / t.
[0029] 1. Gold extraction smelting process
[0030] a Two-stage roasting to produce slag concentrate:
[0031] (a) Send the high-arsenic complex gold concentrate into the first-stage roaster, and conduct a first-stage boiling roasting at high temperature under weak oxygen conditions to convert the arsenic in the ore into arsenic trioxide. sent to the second-stage roaster;
[0...
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The invention discloses a method for extracting high arsenic complicated golden ore concentrate multielement. The method comprises the following steps that: the multielement complicated golden ore concentrate with extra-high arsenic is subjected to the roast dearsenification technique treatment, part of sulfur in the multielement high arsenic golden ore concentrate converted into sulfur dioxide and the arsenic converted into arsenic trioxide enter flue gas which is subjected to dust and arsenic collection, and then enter an acid making system to produce sulphuric acid; the multielement smelting slag and multielement low arsenic golden ore concentrate obtained by roast dearsenification, return products and flux are mixed to obtain copper matte regulus, and the like by adopting oxygen enrichment bottom blowing matte smelting gold collecting process to carry out the smelting process; the copper matte regulus is subjected to converting and refining to cast an anode plate which is sent to an electrolysis system to obtain an electrolytic copper product by refining; anode mud generated through electrolysis is sent to a noble metal refine system to produce gold and sliver, and the like; smelting slag and converting slag are subjected to floatation treatment to obtain copper and iron ore concentrate; and the generated gangue belongs to harmless slag and can be used. The method has the characteristics of wide range of the raw material application, high synthesized recovery efficiency of valuable element, and obvious economic and environment benefits.
Description
Technical field: [0001] The invention relates to the technical field of metallurgy, in particular to a multi-element comprehensive extraction method of high-arsenic complex gold concentrate. Background technique: [0002] At present, there are three methods for processing high-arsenic complex gold concentrates: two-stage roasting, bacterial oxidation, and hot-press leaching. The two-stage roasting has a large consumption of cyanide, and the recovery rate of valuable elements such as gold, silver, and copper is low. Waste of resources; bacterial oxidation has a low recovery rate of valuable elements such as gold, silver, and sulfur and arsenic cannot be comprehensively recovered, etc. Disadvantages: hot-press leaching has strict equipment requirements, many equipments are expensive, and sulfur and arsenic cannot be comprehensively recovered. Invention content: [0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, an...
Claims
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IPC IPC(8): C22B11/02C22B1/10C22B15/14C22B15/04C25C1/20C25C1/12
CPCY02P10/20
Inventor 王信恩高正林曲胜利张俊峰马少卫邹琳
Owner SHANDONG HUMON SMELTING
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