Compound inhibiting agent capable of effectively separating copper and sulfur at low-alkalinity condition

A compound inhibitor and low alkalinity technology, which is applied in the field of compound inhibitor and mineral processing inhibitor, can solve the problems of high production cost and achieve the effect of improving grade, simple process flow and strong operability

Inactive Publication Date: 2012-11-28
CHANGCHUN GOLD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the production co

Method used

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  • Compound inhibiting agent capable of effectively separating copper and sulfur at low-alkalinity condition
  • Compound inhibiting agent capable of effectively separating copper and sulfur at low-alkalinity condition

Examples

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Comparison scheme
Effect test

example 1

[0054] The composite inhibitor of the present invention takes raw materials according to the following weight ratio, and the total consumption relative to the raw ore is 10kg / t.

[0055] Sodium hypochlorite / sodium humate=4

[0056] The technical indicators of the test results are:

[0057] Table 5 Results of closed-circuit test of sodium humate and calcium hypochlorite as inhibitors

[0058] product

example 2

[0060] The composite inhibitor of the present invention takes raw materials according to the following weight ratio, and the total consumption relative to the raw ore is 8kg / t.

[0061] Sodium hypochlorite / sodium humate: 2.5

[0062] The technical indicators of the test results are:

[0063] Table 6 Results of closed-circuit test of sodium humate and calcium hypochlorite as inhibitors

[0064] product

[0065] It can be seen from the test results that the use of sodium humate and calcium hypochlorite as inhibitors can greatly improve the concentrate grade, and the separation effect of copper and sulfur is better.

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Abstract

The invention discloses a compound inhibiting agent capable of effectively separating copper and sulfur at a low-alkalinity condition, which is prepared by mixing calcium chlorate and sodium humate according to a weight ratio. The ratio of sodium hypochlorite to the sodium humate is equal to 1-50. The copper and sulfur separation can be effectively realized at the low-alkalinity condition, so that the grade of copper concentrate ore is promoted and the problems that the easiness of scaling and solidifying, pipeline blocking, equipment etching, serious mine wastewater which are caused by high alkalinity of the conventional copper and sulfur separation and a large amount of added lime are solved; and compared with a cyaniding method and a heating oxidization method, the compound inhibiting agent disclosed by the invention has the advantages of no pollution, simple process flow, strong operability and the like.

Description

technical field [0001] The invention relates to a composite inhibitor for effective separation of copper and sulfur under low alkalinity conditions, which belongs to an ore dressing inhibitor, in particular to a composite inhibitor capable of effectively inhibiting pyrite. Background technique [0002] Copper-sulfur ore is the most common type of ore in sulfide ores. The essence of copper-sulfur ore flotation is to separate copper minerals from iron sulfide minerals, and the process of sulfur suppression and copper floating is usually used. At present, there are three main methods for the separation of copper and sulfur, namely: 1. Lime method; 2. Lime + cyanide method; 3. Heating oxidation method. [0003] 1. Lime method [0004] Lime is a common inhibitor of pyrite. When the lime method is used to separate copper and sulfur, this process is quite mature and the separation effect is good. However, due to the large amount of lime used in the process of use and the high alk...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/06
Inventor 孙洪丽岳辉郑晔赵明福
Owner CHANGCHUN GOLD RES INST
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