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Method, with a side blowing furnace, of treating high-arsenic ore

A technology of side-blown furnace and high-arsenic ore, which is applied in the field of metallurgy, can solve problems such as the influence of arsenic collection efficiency, ineffective recovery, and low arsenic recovery rate, and achieve the effects of strong adaptability of furnace materials, increased recovery rate, and avoiding production accidents

Inactive Publication Date: 2019-11-12
SHANDONG HUMON SMELTING
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Problems solved by technology

In addition, the traditional top-blown smelting furnace maintains an oxidizing atmosphere, and the lead in the material cannot be effectively volatilized into the flue gas for centralized collection, and more than 30% of the lead is oxidized into the smelting slag, which cannot be effectively recovered, resulting in waste of resources
Moreover, sulfur trioxide and pentavalent arsenic are easily produced in an oxidizing atmosphere, which affects the efficiency of arsenic collection, and the recovery rate of arsenic is low.

Method used

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  • Method, with a side blowing furnace, of treating high-arsenic ore
  • Method, with a side blowing furnace, of treating high-arsenic ore
  • Method, with a side blowing furnace, of treating high-arsenic ore

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Embodiment Construction

[0032] For better understanding and implementation, the present invention will be further described below in conjunction with accompanying drawing: a kind of method for side-blown furnace processing high arsenic ore, comprises the following steps:

[0033] A. Ingredients:

[0034] Mix gold concentrate, lead matte, high-arsenic ore, quartz stone, coal, and refined soot according to the ratio of 25:5:20:0.23:1.6:1.5, and adjust the iron-silicon ratio of the output slag to 1.3. The mixed material required by the process is added to the side blowing furnace, and the elemental analysis table of the mixed material is shown in Table 2;

[0035] Table 2

[0036]

[0037] B. Melting:

[0038] 1) The oxygen-enriched side-blowing furnace is used for smelting. At a high temperature of 1230°C, the oxygen-enriched air blown into the furnace undergoes physical reactions such as water evaporation with the mixed charge, and at the same time, high-valent sulfides are decomposed and oxidize...

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Abstract

The invention discloses a method, with a side blowing furnace, of treating high-arsenic ore. The method comprises the following steps that the high arsenic ore is mixed with lead matte, quartz, coal and the like; and after the steps of oxidation, matte making, reduction and oxidation, copper is transformed into the matte, sulfur is transformed into sulfur dioxide and arsenic is transformed into arsenic trioxide for recycling, and precious metal alloys containing gold, silver and copper are obtained, and lead-containing smoke dust is obtained by the reduction - oxidation of lead. The method adopts side blowing furnace to treat high arsenic ore and comprehensively recover valuable elements such as copper, lead and arsenic, so that the method has the characteristics of strong adaptability ofraw materials, concentrated distribution of valuable elements, remarkable economic and environmental benefits.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a method for treating high-arsenic ore with a side-blowing furnace. Background technique [0002] At present, in the traditional process, high-arsenic ore is generally processed by top blowing smelting process to recover valuable metals such as copper, gold and silver. The high-arsenic ore is put into the top-blowing smelting furnace through batching, and a spray gun is inserted at the top of the furnace body to feed oxygen to maintain the oxidizing atmosphere in the furnace for smelting, and produce matte and slag, which are layered and put into matte ladles respectively , Slag bag. The arsenic in the material is oxidized into the flue gas, and after entering the acid system with the flue gas, it is removed by purification. [0003] Using this method to treat high-arsenic ore will make the purified dilute acid contain too much arsenic, which will increase the di...

Claims

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Application Information

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IPC IPC(8): C22B30/04C22B5/10C22B13/02C22B15/00C01G28/00
CPCC22B30/04C22B5/10C22B13/02C22B15/0028C01G28/005Y02P20/129Y02P20/10
Inventor 曲胜利张俊峰邹琳初长青解维平王雷
Owner SHANDONG HUMON SMELTING
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