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Method for separating lead, arsenium and copper in high-lead high-arsenium copper slag

A high-lead slag and copper slag technology is applied in the field of copper and separation of lead and arsenic from high-lead and high-arsenic copper slag. It can solve the problems of large resource and energy consumption, complex components, and reduced resource recovery benefits, so as to save consumption, The effect of low consumption and high efficiency separation

Active Publication Date: 2020-05-15
HENAN YUGUANG GOLD & LEAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem addressed by the present invention is: the high-lead and high-arsenic copper slag has complex components and contains the toxic element arsenic. In the prior art, the lead and arsenic in the copper slag cannot be effectively separated, and the resources and arsenic in the separation process are High energy consumption reduces the efficiency of resource recovery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The high-lead and high-arsenic copper slag is the copper slag produced in the process of producing blister copper by blowing of lead matte and arsenic matte, and the components of the copper slag include Pb: 20-35%, As: 7-12%, Containing Cu: 6-20%.

[0062] A method for separating lead, arsenic and copper in high-lead and high-arsenic copper slag, the method comprises the following steps:

[0063] (1) Add high-lead, high-arsenic copper slag and auxiliary materials into a bottom-blown melting furnace for melting at 1050°C; details are as follows:

[0064] a: After the smelting furnace is started, in the first 2 hours, the high-lead and high-arsenic copper slag to be processed and the first part of pyrite are metered by the quantitative feeder, and then continuously fed into the bottom blowing smelting furnace through the belt. Complete the high-lead and high-arsenic copper slag to be processed and add the first part of pyrite;

[0065] B: then within 3 hours, add the s...

Embodiment 2

[0073] The high-lead and high-arsenic copper slag is the copper slag produced in the process of producing blister copper by blowing of lead matte and arsenic matte, and the components of the copper slag include Pb: 20-35%, As: 7-12%, Containing Cu: 6-20%.

[0074] A method for separating lead, arsenic and copper in high-lead and high-arsenic copper slag, the method comprises the following steps:

[0075] (1) Add high-lead, high-arsenic copper slag and auxiliary materials into a bottom-blown melting furnace for melting at 1050°C; details are as follows:

[0076] a: After the smelting furnace is started, in the first 2 hours, the high-lead and high-arsenic copper slag to be processed and the first part of pyrite are metered by the quantitative feeder, and then continuously fed into the bottom blowing smelting furnace through the belt. Complete the high-lead and high-arsenic copper slag to be processed and add the first part of pyrite;

[0077] b: Then within 3 hours, add the s...

Embodiment 3

[0085] The high-lead and high-arsenic copper slag is the copper slag produced in the process of producing blister copper by blowing of lead matte and arsenic matte, and the components of the copper slag include Pb: 20-35%, As: 7-12%, Containing Cu: 6-20%.

[0086] A method for separating lead, arsenic and copper in high-lead and high-arsenic copper slag, the method comprises the following steps:

[0087] (1) Add high-lead, high-arsenic copper slag and auxiliary materials into a bottom-blown melting furnace for melting at 1050°C; details are as follows:

[0088] a: After the smelting furnace is started, in the first 2 hours, the high-lead and high-arsenic copper slag to be treated, the first part of pyrite and quartz stone are measured by the quantitative feeder, and then continuously added to the bottom blowing smelting through the belt In the furnace, the high lead and high arsenic copper slag to be processed and the first part of pyrite are added;

[0089] B: then within 3...

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Abstract

The invention discloses a method for separating lead, arsenium and copper in high-lead high-arsenium copper slag. The method includes the steps that the high-lead high-arsenium copper slag and accessories are added into a smelting furnace to be smelted at the temperature of 1,000-1,100 DEG C; arsenic trioxide and arsenic sulfide generated in the smelting process volatilize into smoke dust; the copper and the lead are vulcanized into sulfide, and the sulfide is precipitated at the bottom of the furnace to form lead copper matte; the arsenium is separated; lead sulfide in the obtained lead copper matte is oxidized into lead oxide to form high-lead slag to be recovered; low-lead copper matte left at the bottom of the furnace is blown to form crude copper; and the lead and the copper are separated. The method is short in process and high in treatment efficiency, harmful matter does not directly make contact with people in the whole treatment process, and therefore the perniciousness of theharmful matter is greatly reduced. The consumption of additional reagents is avoided, the copper, the lead and the arsenium can be well separated, and the high recovery rate is achieved. All elementsin the high-lead high-arsenium copper slag are efficiently separated under the conditions of being low in cost, low in consumption, short in process and free of pollution, and good social and economic benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal smelting. Specifically relates to a method for separating lead, arsenic and copper in high-lead and high-arsenic copper slag. Background technique [0002] During the lead smelting process, the arsenic and copper in the lead concentrate will be enriched into lead matte and arsenic matte, and a High-lead, high-arsenic copper slag, its main components are 20-35% of Pb, 6-20% of Cu, and 7-12% of As. The slag contains a large amount of lead, arsenic and copper. The composition is complex and cannot be directly Make use of. Direct stacking will not only cause waste of resources, but also the toxic element arsenic will have a greater impact on the environment. [0003] At present, the copper slag treatment method is to return the high-lead and high-arsenic copper slag to the batching system to be smelted together with copper scum to re-produce lead matte and arsenic matte. Although this meth...

Claims

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Application Information

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IPC IPC(8): C22B7/04C22B30/04C22B13/02C22B15/00C01G28/00
CPCC22B7/04C22B7/001C22B30/04C22B13/025C22B15/003C01G28/005C01G28/008Y02P10/20
Inventor 曹军超赵体茂许向波李永杰
Owner HENAN YUGUANG GOLD & LEAD
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