Beneficiation method for treating copper smelting slag

A technology of copper smelting slag and beneficiation method, applied in flotation, solid separation and other directions, can solve problems such as high recovery rate, and achieve the effects of high recovery rate, easy management and operation, and environmental protection of chemicals

Inactive Publication Date: 2015-12-16
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a mineral processing method for processing copper smelting slag, so as to so

Method used

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  • Beneficiation method for treating copper smelting slag
  • Beneficiation method for treating copper smelting slag

Examples

Experimental program
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Example Embodiment

[0016] Example 1

[0017] Flotation of a copper smelting slag, the copper grade of the copper smelting slag is 0.95%. The valuable elements of copper slag are copper, zinc, iron, etc. The carrier minerals of copper slag are mainly chalcopyrite, the zinc carrier minerals are mainly sphalerite, the iron carrier minerals are mainly magnetite, and a small amount of limonite. The chalcopyrite is more evenly distributed and has a finer particle size. The solid solution formed with the sphalerite is dispersed in the glass in the form of microbeads and is extremely difficult to dissociate. The beneficiation steps of copper minerals are:

[0018] 1) Fast flotation: Grind the copper smelting slag or raw ore to a fineness of less than 0.043 mm, accounting for 75%, adjust the slurry concentration to 38%, add copper mineral collecting foaming agent per ton of raw ore: n-butyl yellow Sodium ortho 15g / t, terpineol 7.5g / t, agitate, perform copper fast flotation flotation operation, obtain fast f...

Example Embodiment

[0024] Example 2. The original ore is the same as Example 1. The beneficiation steps of copper minerals are:

[0025] 1) Fast flotation: Grind the copper smelting slag or raw ore to a fineness of less than 0.043 mm, accounting for 80%, adjust the slurry concentration to 34%, add copper mineral collecting foaming agent per ton of raw ore: n-butyl yellow Sodium ortho 10g / t, terpineol 10g / t, stirring, perform copper fast flotation flotation operation, obtain fast flotation copper coarse concentrate, namely copper concentrate 1, copper fast flotation tailings are used as copper roughing mine.

[0026] 2) Rough separation: add copper mineral combination collector foaming agent to copper rapid flotation tailings slurry per ton of raw ore: sodium n-butyl xanthate 15g / t, dibutyl ammonium dithiophosphate 20g / t, 20g / t of cyanoethyl diethylaminodithioformate, 15g / t of terpineol oil, stirring, carry out copper rough flotation operation, obtain rough concentrate as selected feed, and copper r...

Example Embodiment

[0031] Example 3. The original ore is the same as that in Example 1. The beneficiation steps of copper minerals are:

[0032] 1) Fast flotation: Grind the copper smelting slag or raw ore to a fineness of less than 0.043 mm, accounting for 85%, adjust the slurry concentration to 30%, add copper mineral collecting foaming agent per ton of raw ore: n-butyl yellow Sodium ortho 13g / t, terpineol oil 5g / t, stirring, perform copper fast flotation flotation operation, obtain fast flotation copper concentrate, namely copper concentrate 1, copper fast flotation tailings are used as copper rough mine.

[0033] 2) Rough separation: add copper mineral combination collector foaming agent to copper rapid flotation tailings slurry per ton of raw ore: sodium n-butyl xanthate 25g / t, dibutyl ammonium dithiophosphate 15g / t, 15g / t of cyanoethyl diethylaminodithioformate, 5g / t of terpineol oil, stirring, and carrying out the flotation operation of copper roughing, obtaining the roughing concentrate as ...

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Abstract

The invention discloses a beneficiation method for treating copper smelting slag to solve the problem of incapability of obtaining higher recovery rate under the condition of guaranteeing the concentrate grade in traditional flotation. The method adopts segmented flotation of copper ores contained in copper slag, that is, the quick flotation of part easy-floating copper ores is firstly performed; and then, the floatation is performed for difficult-floating copper ores. The copper smelting slag, namely raw ores are grinded to a certain fineness; the copper ores are collected through adding a copper smelting slag collection foaming agent; and the combined collection foaming agent is n-butyl xanthic acid, ammonium dibutyl dithiophosphate, lignocaine dithio formic acid cyanoethyl and terpenic oil. The beneficiation method is simple in process, and is easy to be managed and operated in scene; and the process can obtain higher economic and technical indexes. The used medicament is environment-friendly; and finally obtained copper concentrates are higher in grade and recovery rate.

Description

Technical field [0001] The invention belongs to the technical field of copper smelting slag beneficiation, and specifically relates to a beneficiation method for processing copper smelting slag. Background technique [0002] A large amount of solid waste will be generated in the process of non-ferrous metal smelting, and its comprehensive recovery has now become a new hot spot in the development and utilization of secondary resources. It has very important strategic and practical significance in both environmental protection and economic aspects. [0003] At present, the beneficiation method for the recovery of copper smelting slag produced in the process of non-ferrous metal copper smelting mainly adopts conventional flotation technology to recover. This method has the following problems: (1) The copper mineral substance composition of copper smelting slag is complex and floatable The difference is large. Conventional flotation cannot obtain a high recovery rate while guaranteeing...

Claims

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Application Information

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IPC IPC(8): B03D1/004B03D101/02B03D101/04
Inventor 李福兰胡保栓孙运礼翟东民穆晓辉陈杜娟巩明辉杨俊龙王志丰苗培任琳珠姜永智
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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