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A method for separating lead, arsenic and copper in high-lead and high-arsenic copper slag

A high-lead slag and high-lead technology is applied in the field of arsenic, copper, and lead in the separation of high-lead and high-arsenic copper slag. It can solve the problems of ineffective separation of lead and arsenic, large resource and energy consumption, and reduced resource recovery benefits. Achieve the effect of saving consumption, less resource consumption and reducing production cost

Active Publication Date: 2022-03-15
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, arsenic and copper in high-lead and high-arsenic copper slag. In this method, high-lead and high-arsenic copper slag and auxiliary materials are added to the melting furnace for melting at 1000-1100 ° C; the arsenic trioxide and arsenic sulfide produced by the melting volatilize into the smoke; Lead matte; complete the separation of arsenic; oxidize the lead sulfide in the obtained lead matte to lead oxide to form high-lead slag for recycling; the remaining low-lead matte at the bottom of the furnace is blown to form blister copper; complete the separation of lead and copper . The method has short flow and high treatment efficiency, and the harmful substances in the whole treatment process are not in direct contact with human beings, which greatly reduces their harm. And there is no consumption of additional reagents, copper, lead and arsenic can be separated better, and the recovery rate is higher. Under the conditions of low cost, low consumption, short process and no pollution, the high-efficiency separation of various elements in high-lead and high-arsenic copper slag is realized, and it has good social and economic benefits.

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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Patent Type & Authority Patents(China)
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