Method for carrying out mixed melting on multisource complex low-grade copper ores to produce white matte

A low-grade, white matte technology, applied in the direction of improving process efficiency, etc., can solve the problems of intermittent operation, short life of smelting furnace, frequent operation, etc., and achieve the effect of reducing labor intensity, increasing labor intensity and prolonging the working cycle

Active Publication Date: 2014-12-24
JIYUAN XINXIN INDAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are certain defects in the above method: the amount of slag returned to the white matte is relatively high, the smoke and dust rate of some production processes is relatively high, and the equipment is relatively complicated
[0006] There is still no effective way to deal with multi-source complex low-grade copper ore
There are a few foreign companies trying to deal with low-grade copper ore, such as the Kaiser smelter in Germany, the Comac plant in the United States, and the South Aston plant, etc., but due to large investment, high energy consumption, intermittent operations, and Frequent, short life of smelting furnace, high copper content in slag, etc., these treatment technologies have not been widely promoted so far

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for producing white matte by mixing and smelting multi-source complex low-grade copper ores according to the present invention, the components of copper concentrate, waste miscellaneous copper, and chalcopyrite refining slag used are as follows, and the contents all represent the quality of the elements Fraction:

[0034] The composition of copper concentrate is:

[0035] the element

Cu

Fe

S

Pb

Al 2 o 3

SiO 2

other

Content%

28.31

23

32

0.5

0.36

1.8

14.03

[0036] The composition of waste miscellaneous copper is:

[0037] the element

Cu

Zn

Pb

sn

other

Content%

27.27

22.25

23.37

10.06

17.05

[0038] The composition of chalcopyrite refining slag is:

[0039] the element

Cu

Fe

CaO

other

Content%

0.7

26.59

34.83

37.88

[0040] The composition of anthracite is:

...

Embodiment 2

[0045] A method for producing white matte by mixed smelting of multi-source complex low-grade copper ores of the present invention, the composition of copper concentrate, waste miscellaneous copper and chalcopyrite refining slag used are as follows:

[0046] The composition of copper concentrate is:

[0047] the element

Cu

Fe

S

Pb

SiO 2

other

Content%

34.27

27.26

23.44

0.28

1.08

13.67

[0048] The composition of waste miscellaneous copper is:

[0049] the element

Cu

Zn

Pb

sn

other

Content%

37.18

19.37

28.14

11.57

3.74

[0050] The composition of chalcopyrite refining slag is:

[0051] the element

Cu

Fe

CaO

other

Content%

0.5

28.99

37.72

32.79

[0052] The composition of anthracite is:

[0053] Element

fixed carbon

Volatile matter

Ash

total

Content%

...

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Abstract

The invention discloses a method for carrying out mixed melting on multisource complex low-grade copper ores to produce white matte. The method comprises the following steps: carrying out batching according to a mass ratio of copper content of copper concentrates to copper content of scrap copper to copper content of refining slags of copper pyrites of 1:(0.30 to 0.45):(0.002 to 0.006); adding the copper concentrates, the scrap copper and the refining slags of the copper pyrites into a melting furnace; adding anthracite of which mass accounts for 5 percent to 19 percent of the total mass of the copper concentrates, the scrap copper and the refining slags of the copper pyrites into the melting furnace; melting in the oxygen-enriched air to produce the white matte. The method disclosed by the invention has a small investment scale, is low in energy consumption, continuously operates and can implement recycling of copper resources.

Description

technical field [0001] The invention belongs to the technical field of heavy nonferrous metallurgy, and relates to a method for smelting white matte by using low-grade copper ore, in particular to a method for producing white matte by mixing and melting multi-source complex low-grade copper ore. Background technique [0002] The metal copper smelting technology has a history of thousands of years. Today, copper has become the third largest metal necessity in today's industry after steel and aluminum. In the modern copper smelting process technology, affected by factors such as economic indicators, technical indicators, and environmental indicators, copper smelting enterprises must consider maximizing output with the least production cost on the one hand, and strive to protect the environment on the other hand. Zero pollution. Therefore, it puts forward new requirements for the copper smelting process. [0003] In the copper smelting process, the production of white matte i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B15/00
CPCY02P10/20
Inventor 王富源张虎姚小龙李立清张晓峰曹佐英肖克
Owner JIYUAN XINXIN INDAL
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