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A middle and low grade mixed type collophanite flotation separation agent system and its application

A mixed type collophosite technology, applied in flotation, solid separation, etc., can solve the problems affecting the recovery rate of concentrate, affecting the application of mineral processing backwater, shortening the service life of equipment, etc., to increase the selective inhibition, The effect of prolonging the service life and improving the sortability

Active Publication Date: 2021-05-11
INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the mixed acid of sulfuric acid and phosphoric acid is used as an inhibitor, more than 10kg of chemical agent needs to be added per ton of raw ore, and the chemical consumption is relatively large; at the same time, the addition of a large amount of acid makes the flotation pH value as low as about 5, which is relatively low. The pH value of the pH greatly shortens the service life of the equipment and affects the application of mineral processing backwater; in addition, when the sodium fatty acid sodium oleate is used as the collector, due to the poor selectivity of the agent, in the flotation process, part of the gum Phosphate ore is also subsequently collected by collectors, which affects the concentrate recovery index

Method used

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  • A middle and low grade mixed type collophanite flotation separation agent system and its application
  • A middle and low grade mixed type collophanite flotation separation agent system and its application
  • A middle and low grade mixed type collophanite flotation separation agent system and its application

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Effect test

Embodiment 1

[0042] 1. A middle and low-grade mixed type collophanite flotation separation agent system, including inhibitors and collectors;

[0043]In parts by weight, the inhibitor includes 4 parts of sodium tripolyphosphate, 2 parts of hexametaphosphate and 2 parts of phosphoric acid, and the collector includes 4 parts of sodium vegetable oil and 1 part of dodecyl phosphate.

[0044] The preparation method of the collector is that the NaOH solution with a concentration of 20% by mass is added into the mixed solution of vegetable oil and dodecyl phosphate, and the heating reaction is carried out under the condition of 60° C. for 5 hours.

[0045] Among them, the vegetable oil is cottonseed oil, rice bran oil, castor oil, corn oil and soybean oil; the weight ratio of NaOH solution to the mixed solution is 0.2:1.

[0046] 2. The application method of the medicament, comprising the following steps:

[0047] S1-1. Paramixed collophosite (taken from a dressing plant in Mabian area, P 2 o ...

Embodiment 2

[0059] 1. A middle and low-grade mixed type collophanite flotation separation agent system, including inhibitors and collectors;

[0060] In parts by weight, the inhibitor includes 5.5 parts of sodium tripolyphosphate, 2.5 parts of hexametaphosphate and 2.5 parts of phosphoric acid, and the collector includes 4.5 parts of sodium vegetable oil and 1 part of dodecyl phosphate.

[0061] The preparation method of the collector is that the NaOH solution with a concentration of 20% by mass is added to the mixed solution of vegetable oil and dodecyl phosphate, and the heating reaction is carried out at 70° C. for 4 hours to obtain the final product.

[0062] Among them, the vegetable oil is cottonseed oil, rice bran oil, castor oil, corn oil and soybean oil; the weight ratio of NaOH solution to the mixed solution is 0.2:1.

[0063] 2. The application method of the medicament, comprising the following steps:

[0064] S1-1. Paramixed collophosite (taken from Leibo factory, P 2 o 5 G...

Embodiment 3

[0076] 1. A middle and low-grade mixed type collophanite flotation separation agent system, including inhibitors and collectors;

[0077] In parts by weight, the inhibitor includes 6 parts of sodium tripolyphosphate, 3 parts of hexametaphosphate and 3 parts of phosphoric acid, and the collector includes 5 parts of sodium vegetable oil and 1 part of dodecyl phosphate.

[0078] The preparation method of the collector is that the NaOH solution with a concentration of 20% by mass is added to the mixed solution of vegetable oil and dodecyl phosphate, and the heating reaction is carried out under the condition of 80° C. for 3 hours.

[0079] Among them, the vegetable oil is cottonseed oil, rice bran oil, castor oil, corn oil and soybean oil; the weight ratio of NaOH solution to the mixed solution is 0.2:1.

[0080] 2. The application method of the medicament, comprising the following steps:

[0081] S1-1. Paramixed collophosite (taken from a concentrator in Jinyang, P 2 o 5 Grade...

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Abstract

The invention relates to the technical field of collophosite mineral processing, and discloses a medium-low grade mixed type collophanite flotation separation agent system and its application, the flotation separation agent system includes inhibitors and collectors; by weight parts , the inhibitor includes 4 to 6 parts of sodium tripolyphosphate, 2 to 3 parts of hexametaphosphate and 2 to 3 parts of phosphoric acid, and the collector includes 4 to 5 parts of sodium vegetable oil and dodecyl phosphoric acid 1 part of ester; the preparation method of the collector is to add NaOH solution into the mixed solution of vegetable oil and dodecyl phosphate, and react by heating; the vegetable oil includes cottonseed oil, rice bran oil, At least one of castor oil, corn oil and soybean oil; the present invention increases the selective inhibition of the inhibitor on apatite minerals in the flotation pulp by adding phosphates with a high degree of polymerization in the inhibitor function, so that the collector molecules are more effectively adsorbed on the surface of calcium magnesium minerals, and the effect of effectively improving the sorting property of apatite minerals is achieved.

Description

technical field [0001] The invention relates to the technical field of collophosite beneficiation, in particular to a mid-low grade mixed type collophanite flotation separation agent system and its application. Background technique [0002] As a main chemical raw material, phosphate rock is widely used in various fields such as agriculture, food, and medicine, and is closely related to people's daily life. At the same time, it is also a non-renewable and non-recyclable resource. The distribution characteristics of phosphate rock resources are relatively concentrated and unevenly distributed geographically. Phosphate rock resources in the world are mainly distributed in Africa, Asia, South America, North America and the Middle East, among which only Morocco and Western Sahara, China, the United States, and South Africa The reserves of phosphate rock resources in China and Russia account for more than 80% of the world's total reserves of phosphate rock resources. The distribu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/002B03D1/014B03D1/008B03B9/00B03D101/06B03D101/02B03D103/06
CPCB03B9/00B03D1/002B03D1/008B03D1/014B03D2201/02B03D2201/06B03D2203/06
Inventor 邓善芝邓杰陈达张丽军熊文良
Owner INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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