A kind of production method of blister copper
A production method and technology for blister copper, applied in rotary drum furnaces, crucible furnaces, furnaces, etc., can solve the problems of slag discarding and shelving, high temperature in molten state, waste of resources, etc., and achieve complete oxidation and reduction reactions and reduce copper content. , the effect of reducing usage
Active Publication Date: 2020-06-23
营口盛海化工有限公司
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Problems solved by technology
However, in the actual process, due to the raw material input into the production device at least 1 ton at a time, the temperature in the molten state is high (1080 ° C ~ 1800 ° C), the oxidation and reduction reactions will not be very sufficient, resulting in copper and ferric oxide in the slag , resulting in the high cost and difficulty of the slag being further recovered and refined into pure iron, resulting in a large amount of slag being discarded and put aside, which not only wastes resources, but also pollutes the environment
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[0019] The specific embodiment of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0020] It should be noted that, in the following specific embodiments, when describing the embodiments of the present invention in detail, in order to clearly show the structure of the present invention for the convenience of description, the structures in the drawings are not drawn according to the general scale, and are drawn Partial magnification, deformation and simplification are included, therefore, it should be avoided to be interpreted as a limitation of the present invention.
[0021] In the following specific embodiments of the present invention, please refer to figure 1 , figure 1 It is a flowchart of a production method of blister copper of the present invention. As shown in the figure, the following steps are included:
[0022] S1: Put copper concentrate, limestone and cuprous sulfide into the furnace at the same tim...
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The invention discloses a production method of raw copper. The production method specifically comprises the steps of firstly, adding copper concentrate, limestone and cuprous sulfide to a smelting furnace from a top feed opening of the smelting furnace at the same time, introducing mixed gas of high-pressure methane and oxygen from the side wall of the smelting furnace, igniting the mixed gas, and reacting for 10 h to 12 h, wherein rapid oxidation reaction and desulphurization reaction of a molten mixture occur, and sulfur dioxide generated after reaction passes through a waste heat recovery system and then is sent to an acid making system; then introducing mixed gas of high-pressure methane and oxygen from the side wall of the smelting furnace, so that reduction reaction occurs for 3 h to 5 h, and the raw copper and slag after reaction are respectively obtained. The positions and arrangement of air holes located in the side wall of the smelting furnace are improved, so that a multilayer fluid and turbulence area can be formed in the smelting furnace, the flowability of the molten mixture in the furnace is increased, the uniform mixing of copper ore and auxiliary materials is guaranteed, and the productivity is increased.
Description
technical field [0001] The invention relates to the field of metal smelting, in particular to a method for producing blister copper. Background technique [0002] At present, 85%~90% of the world extracts copper from sulfide ores using pyrometallurgy. The method mainly includes: matte smelting of copper concentrate, copper matte blowing into blister copper, blister copper pyro-refining and anode copper electrolytic refining, and finally obtains pure copper suitable for industrial use with a purity of up to 99.95%. [0003] The production method of blister copper is to desulfurize and remove iron from copper concentrate and smelt it into blister copper with a copper content of more than 95%. At present, there are three main smelting methods widely used in the world, namely flash method, Aisa method and blast furnace method. Wait. The blast furnace method is basically eliminated due to the difficulty of pollution control and the consumption of coke. The flash method first a...
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IPC IPC(8): C22B15/00C22B5/12
CPCC22B5/12C22B15/003
Inventor陈家斌
Owner营口盛海化工有限公司