Method for flotation and separation of copper molybdenum sulphide bulk concentrates

A technology of mixing concentrate and copper-molybdenum sulfide, applied in flotation, solid separation, etc., can solve problems such as difficulty in copper-molybdenum separation, achieve the effects of reducing mineral processing costs, reducing pollution, and improving the production environment

Active Publication Date: 2013-06-05
HUNAN RES INST FOR NONFERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high-efficiency and environment-friendly inhibitor and a copper-molybdenum flotation mixed concentrate flotation separation method to solve the difficult technical problem of copper-molybdenum separation

Method used

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  • Method for flotation and separation of copper molybdenum sulphide bulk concentrates
  • Method for flotation and separation of copper molybdenum sulphide bulk concentrates

Examples

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Effect test

Embodiment 1

[0023] A copper sulfide molybdenum flotation mixed concentrate has a copper grade of 17.10% and a molybdenum grade of 2.34%. The monomer dissociation degree of molybdenum mineral is 97%.

[0024] Copper-molybdenum flotation mixed concentrate is adjusted to a pulp concentration of 33%, and water glass 500g / t, hydroxamic acid starch 160g / t, sodium sulfide 700g / t, kerosene 30g / t are added in turn ,2 # Oil 20g / t is fed to the ore, and molybdenum roughing is carried out to obtain rough molybdenum concentrate and roughing tailings, and the roughing tailings are added with kerosene and 2 # oil for scavenging, scavenging 1 kerosene and 2 # The amount of oil added is 15g / t for ore and 10 g / t for ore, and the second kerosene and 2 # The amount of oil added is 10g / t for ore and 8g / t for ore to obtain scavenging concentrate and scavenging tailings, and the scavenging tailings are copper concentrates.

[0025] Molybdenum rough concentrate is added with copper mineral inhibitor hydroxam...

Embodiment 2

[0032] A copper sulfide molybdenum flotation mixed concentrate has a copper grade of 18.55% and a molybdenum grade of 5.60%. The copper minerals are mainly chalcopyrite, bornite and blue chalcocite, and the molybdenum minerals are mainly molybdenite. 84%-44μm, the monomer dissociation degree of copper mineral and molybdenum mineral is 96%.

[0033] Copper-molybdenum mixed concentrate is slurried to a pulp concentration of 30%, followed by adding water glass 600g / t to ore, high-efficiency copper sulfide mineral inhibitor hydroxamic acid starch 120g / t to ore, sodium sulfide 680 g / t to ore, kerosene 50g / t to ore, 2 # Oil 20g / t is fed to the ore, and molybdenum roughing is carried out to obtain rough molybdenum concentrate and roughing tailings, and the roughing tailings are added with kerosene and 2 # oil for scavenging, scavenging 1 kerosene and 2 # The amount of oil added is 25g / t for ore and 10 g / t for ore, and the second kerosene and 2 # The amount of oil added is 15g / t fo...

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Abstract

The invention discloses a method for flotation and separation of copper molybdenum sulphide bulk concentrates and belongs to the technical field of mineral dressing. The method uses the copper molybdenum sulphide floated bulk concentrates as raw materials, adopts efficient environment-friendly copper ore inhibitor such as hydroxamic acid starch to inhibit copper sulphide ores, performs flotation of molybdenum sulphide ores and performs flotation and separation of copper and molybdenum. Oximido in the hydroxamic acid starch can be combined with active mass points Cu2+ on the surfaces of the copper sulphide ores to produce stable pentabasic chelate rings. Hydroxide radical and other polar radicals in a starch group at the other end of a chelate can be associated with water molecules through hydrogen bonds to enable the copper sulphide ores to be hydrophilic and inhibit the copper sulphide ores. In addition, the enormous hydrophilic water molecules of the hydroxamic acid starch can hide hydrophobic collecting agent molecules absorbed on the surfaces of copper ores, a collecting agent absorbed on the surfaces of the copper ores is not required to be removed, and the flotation and the separation of the copper molybdenum sulphide bulk concentrates do not need mechanical reagent removal or concentrated reagent removal. The hydroxamic acid starch serves as an inhibitor to inhibit the copper ores, sodium sulphide usage can be remarkably decreased, mechanical reagent removal or concentrated reagent removal is not needed, the chemical cost for the separation of the copper and the molybdenum is reduced, copper and molybdenum flotation and separation technological processes are simplified, good separation effect is obtained, and the method is environment-friendly and efficient.

Description

Technical field [0001] The present invention disclose a method of flotation of copper -sulfid molybdenum flotal concentration ore. This technology is the field of mineral selection technology. Background technique [0002] At present, there are two types of copper molybdenum flotal hybrid ore: one is to suppress copper floating molybdenum; the other is to suppress molybdenum floating copper.Molybdenum floating copper process is complex, cost is high, and the recovery rate of molybdenum is not high; the copper floating molybdenum process is widely used. [0003] For many years, copper floating molybdenum at home and abroad is usually used alone or in cooperation with the following potions, such as sodium sulfide and sodium cyanide.At present, the main methods used in China are sodium sulfide and sodium cyanide.Sodium cyanide and sodium sulfide have a strong inhibitory effect on copper ore, but it is not sensitive to the inhibitory effect of secondary sulfide copper ore.The use of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00
Inventor 陈代雄杨建文李晓东刘锡桂曾惠明
Owner HUNAN RES INST FOR NONFERROUS METALS
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