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Scheelite depressing agent and preparation process thereof

A preparation process and inhibitor technology, applied in flotation, solid separation, etc., can solve the problem of single flotation, achieve the effect of improving grade and recovery rate, reducing treatment amount, and reducing consumption

Inactive Publication Date: 2017-12-05
洛阳市奇航化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problem of single flotation of existing scheelite ore flotation inhibitors, and proposes a scheelite flotation inhibitor with strong inhibition ability, high flotation grade and recovery rate of scheelite and its preparation process

Method used

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  • Scheelite depressing agent and preparation process thereof
  • Scheelite depressing agent and preparation process thereof
  • Scheelite depressing agent and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The scheelite flotation inhibitor used in this embodiment consists of the following components in terms of mass fraction:

[0020] Liquid sodium silicate 40%, sulfuric acid 20%, copper sulfate 15%, carboxymethyl cellulose 10%, lead nitrate 15%.

[0021] In this embodiment, a certain low-grade scheelite ore sample, ore grade WO 3 0.096%. For the test procedure of the pharmaceutical system, see figure 1 , under the premise that other reagent systems remain unchanged, the experimental results of contrasting water glass and the scheelite flotation inhibitor prepared by the present invention are shown in Table 1.

[0022] The collector described in this example is fatty acid soap. The collector is added at the rate of 300 g of collector per ton of raw ore.

[0023] The specific operation is as follows: the raw ore is ground until the particle size is less than or equal to 0.074mm, and the particles account for more than 55% of the total mass of the raw ore, and then the...

Embodiment 2

[0029] The scheelite flotation inhibitor used in this embodiment consists of the following components in terms of mass fraction:

[0030] Liquid sodium silicate 40%, sulfuric acid 20%, copper sulfate 15%, carboxymethyl cellulose 10%,

[0031] Lead nitrate 15%.

[0032] In this embodiment, a certain low-grade scheelite ore sample, ore grade WO 3 0.097%, the pharmaceutical system test process see figure 1 , under the premise that other reagent systems remain unchanged, the experimental results of comparing water glass and the scheelite flotation inhibitor prepared by the present invention are shown in Table 2.

[0033] The collector described in this example is fatty acid soap. The collector is added at the rate of 300 g of collector per ton of raw ore.

[0034] The specific operation is as follows: the raw ore is ground until the particle size is less than or equal to 0.074mm, and the particles account for more than 55% of the total mass of the raw ore, and then the pulp i...

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Abstract

The invention discloses a scheelite depressing agent which comprises, by mass, 40% of liquid sodium silicate, 20% of sulfuric acid, 15% of copper sulfate, 10% of carboxymethyl cellulose and 15% of lead nitrate. The preparation process includes: levigating raw ore until particles with particle size small than or equal to 0.074mm accounts for higher than 55% of total mass of the raw ore, and performing size mixing to obtain primary size; adding a scheelite depressing agent; stirring well, and adding collecting agent; performing four times of selecting and two times of scavenging to obtain scheelite concentrate. Compared with conventional scheelite depressing agents, the scheelite depressing agent has the advantages that consumption of the scheelite depressing agent can be reduced substantially, treatment amount of tailing return water is reduced, grade and recovery rate of the scheelite concentrate can be further improved, and the scheelite depressing agent is nontoxic, pollution-free and convenient for large-scale industrial application.

Description

technical field [0001] The invention belongs to the technical field of scheelite flotation inhibitors, in particular to low-grade scheelite flotation inhibitors containing calcite and fluorite and a preparation process thereof. Background technique [0002] my country is the country with the largest tungsten production, and its reserves of tungsten ore resources rank first in the world, among which scheelite accounts for 70% of the total tungsten ore resources and occupies a dominant position. Although my country's scheelite reserves are large, the economic development of the development and utilization of scheelite is restricted due to the low tungsten grade of scheelite deposits, complex sorting technology, high cost of beneficiation, and difficulty in the recovery of associated metals. With the depletion of resources, more and more attention has been paid to the development and utilization of scheelite. [0003] Water glass is an inorganic reagent with wide sources, low p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D101/06B03D103/04
CPCB03D1/018B03D2201/06B03D2203/04
Inventor 李霆云
Owner 洛阳市奇航化工有限公司
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