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System and process used for marmatite zinc smelting and treatment of associated metal

A technology of associated metal and sphalerite, which is applied in the direction of photography technology, photography auxiliary technology, and process efficiency improvement, etc., can solve the problems of environmental pollution, the inability to effectively achieve comprehensive recovery of associated metals, and waste of resources.

Pending Publication Date: 2019-05-14
呼伦贝尔驰宏矿业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the oxygen pressure leaching technology makes up for the technical deficiencies of the existing roasting-leaching-purification-electrodeposition process, it can realize the efficient and comprehensive recovery of zinc and some associated valuable metals to a certain extent, such as Cu, In, Ge, etc. Indium, replacement copper deposition and separation and purification can be comprehensively recovered, but the recovery rate is low, and there are still some associated metals such as Ag, Pb, Fe, etc. that cannot be effectively comprehensively recovered. Among them, high iron sphalerite after oxygen pressure acid leaching The direct stockpiling of tailings causes environmental pollution on the one hand, and on the other hand, its associated Ag, Pb, Fe, S, etc. are important valuable resources, and stockpiling causes waste of resources

Method used

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  • System and process used for marmatite zinc smelting and treatment of associated metal
  • System and process used for marmatite zinc smelting and treatment of associated metal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Such as figure 1 As shown, a high-iron sphalerite zinc smelting system and a system for processing co-associated metals include the first slurry mixing tank 1, the I-section pulp preheater 2, the I-section oxygen autoclave 3, and the I-section flash tank connected in sequence 4. Middle tank 5 of section I and filter press 6 of section I;

[0066] The filtrate outlet of the I stage filter press 6 is connected with the inlet of the neutralization tank 8, the outlet of the neutralization tank 8 is connected with the inlet of the replacement tank 22, the outlet of the replacement tank 22 is connected with the inlet of the purification tank 9, and the outlet of the purification tank 9 Connect the zinc electrolytic cell 10 with the inlet of the zinc electrolytic cell 10;

[0067] The filter residue outlet of the I stage filter press 6 is connected with the inlet of the second slurry tank 11, and the outlet of the second slurry tank 11 is connected with the inlet of the first...

Embodiment 2

[0071] Utilize the system described in embodiment 1 to carry out the technology of high-iron sphalerite zinc smelting and the preparation of lead-silver slag, and its processing flow comprises:

[0072] Process (1): pulping

[0073] 60kg ferric flash containing Fe 12.05wt%, Zn 43.17wt%, S 30.05wt%, Pb 2.19wt%, As 2.32wt%, Ag 269.7g / t, In 226.1g / t, Cu 2.85wt%, Ge251g / t Zinc ore is mixed with 60kg of water, ground to -325 mesh, accounting for 95%, put into the first pulping tank 1, and 0.6kg of calcium lignosulfonate is added for pulping treatment to obtain pulping liquid.

[0074] Process (2): Phase I oxygen pressure acid leaching

[0075] After preheating the slurry preparation liquid to the set temperature of 80°C through the pulp preheater 2 of the first stage, it is added into the oxygen autoclave 3 of the first stage, and mixed with the acid leaching liquid of the second stage at a volume ratio of 5:1, and the acid leaching liquid of the second stage is in The first addi...

Embodiment 3

[0092] Utilize the system described in embodiment 1 to carry out the technology of high-iron sphalerite zinc smelting and the preparation of lead-silver slag, and its processing flow comprises:

[0093] Process (1): pulping

[0094] 80kg of high iron containing Fe 15.01wt%, Zn 40.31wt%, S 32.03wt%, Pb 0.89wt%, As0.75wt%, Ag 154.6g / t, In223.2g / t, Cu 1.43wt%, Ge245g / t Sphalerite was mixed with 160kg of water, ground to -325 mesh and accounted for 98%, added to the first slurry tank 1, and 1.6kg of calcium lignosulfonate was added for slurry treatment to obtain a slurry.

[0095] Process (2): Phase I oxygen pressure acid leaching

[0096] After preheating the slurry preparation liquid to the set temperature of 100°C through the first-stage pulp preheater 2, it is added into the first-stage oxygen autoclave 3, and mixed with the second-stage acid leaching liquid at a volume ratio of 3:1, and the second-stage acid leaching liquid is in The first addition is to prepare the solutio...

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Abstract

The invention discloses a system used for marmatite zinc smelting and treatment of associated metal. The system comprises a first pulp mixing tank, a first-section ore pulp preheater, a first-sectionoxygen pressure kettle, a first-section flash tank, a first-section intermediate tank, a first-section pressure filter, a lead smelting unit, a neutralization tank, a replacement tank, a purificationtank, a zinc electrolytic tank, a second pulp mixing tank, a first flotation machine, a third pulp mixing tank, a second-section ore pulp preheater, a second-section oxygen pressure kettle, a second-section flash tank, a second-section intermediate tank, a second-section pressure filter, a fourth pulp mixing tank, a second flotation machine and a hot melting filter machine. The invention further discloses a process used for marmatite zinc smelting and treatment of associated metal. Two sections of oxygen pressure acid leaching and flotation are fully combined, associated marmatite can be effectively treated, Cu, In, Ge, Ag, Pb and Fe are recycled, and the recycling efficiency is high.

Description

Technical field: [0001] The invention relates to a system and process for smelting zinc from high-iron sphalerite and processing co-associated metals, belonging to the field of non-ferrous metal hydrometallurgy. Background technique: [0002] Traditional zinc metallurgy mainly adopts the hydrometallurgical process, that is, the process of roasting-leaching-purification-electrowinning, which accounts for more than 90% of the production capacity. Due to the presence of sulfur dioxide pollution in roasting flue gas and the inability to realize efficient comprehensive utilization of zinc and associated metals, the process is not very effective or even impossible to treat associated polymetallic zinc concentrates. [0003] At present, in view of the characteristics of high-iron sphalerite with many associated metals, it is smelted by oxygen pressure acid leaching, which has the advantage of eliminating sulfur dioxide pollution, and sulfur is produced in the form of elements; Pro...

Claims

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Application Information

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IPC IPC(8): C22B19/20C22B3/08C22B3/44C25C1/16C22B15/00C22B41/00C22B58/00C22B13/00C22B11/00C01B17/02B03B9/00
CPCY02P10/20
Inventor 黄云东杨大锦刘俊场朱海成王国栋孟庆宇牟兴兵梁艳辉欧根能陈华君翟忠标周明付维琴伍贺东邹维胥福顺
Owner 呼伦贝尔驰宏矿业有限公司