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Low-temperature-resistant collophanite reverse-flotation collecting agent and method for preparing low-temperature-resistant collophanite reverse-flotation collecting agent

A collophosphate and reverse flotation technology, applied in flotation, solid separation and other directions, can solve problems such as poor sorting effect, and achieve the effects of strengthening emulsification effect, good stability and wide source of raw materials

Active Publication Date: 2014-10-22
BEIJING GENERAL RES INST OF MINING & METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the technical defect of poor separation effect of conventional fatty acid collectors for reverse flotation collophosite at the above-mentioned low temperature (<15°C), the present invention proposes a low-temperature-resistant collector for reverse flotation of collophanite and its preparation method, the resulting collector has the advantages of low temperature resistance, good selectivity, and less consumption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Weigh 20g of oleic acid, add 5g of concentrated sulfuric acid, stir and fully react at 30°C for 2 hours, at this time the color gradually becomes darker, and the liquid in the reactor gradually becomes viscous;

[0027] 2) Continue to add 50g of lauric acid, 10g of surfactant (NP-10) and 12g of foaming agent (BK204) into the reactor, and fully stir at 50°C for 1h;

[0028] 3) Dissolve 15g of sodium hydroxide in 150g of water, then slowly add this solution into the reactor within 0.5h, stir evenly at 30°C to fully saponify it, and obtain a low-temperature-resistant collophanite reverse flotation demagnesization Collector.

Embodiment 2

[0030] 1) Weigh 20g of oleic acid, raise the temperature to 90°C, slowly drop 20g of 30% sodium bisulfite solution into the reactor, keep it at 90°C for 3 hours, and cool down to 50°C;

[0031] 2) Continue to add 60g of lauric acid, 8g of surfactant (NP-10) and 13g of foaming agent (BK204) into the reactor, and fully stir for 1 hour at 50°C;

[0032] 3) Dissolve 16g of sodium hydroxide in 150g of water, then slowly add this solution into the reactor within 1 hour, stir evenly at 30°C to fully saponify it, and obtain a low-temperature-resistant collophanite reverse flotation demagnesium capture Receiver.

Embodiment 3

[0034] 1) Weigh 15g of tall oil, raise the temperature to 90°C, slowly add 20g of sodium bisulfite solution with a concentration of 30% into the reactor dropwise, keep it at 90°C for 3 hours, and cool down after the reaction is completed to 50°C;

[0035] 2) Continue to add 55g of lauric acid, 10g of surfactant (NP-10) and 15g of foaming agent (BK204) into the reactor, and fully stir for 1h at 50°C;

[0036] 3) Dissolve 15g of sodium hydroxide in 150g of water, then slowly add this solution into the reactor within 0.5h, stir evenly at 35°C to make it fully saponified, and obtain a low-temperature-resistant collophanite reverse flotation demagnesization Collector.

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PUM

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Abstract

The invention relates to a low-temperature-resistant collophanite reverse-flotation collecting agent. The low-temperature-resistant collophanite reverse-flotation collecting agent is composed of a basic active flotation material, an auxiliary component and water, wherein the basic active flotation material is composed of, by weights, 10 parts to 30 parts of unsaturated sulfonated aliphatic acid and 50 parts to 80 parts of higher aliphatic acid, the auxiliary component is composed of, by mass, 5 parts to 10 parts of surface active agents, 5 parts to 15 parts of foaming agents and 10 parts to 20 parts of inorganic base, and the ratio of the sum of the mass of the basic active flotation material and the mass of the auxiliary component to the mass of the water ranges from 1:1 to 1:10. When the low-temperature-resistant collophanite reverse-flotation collecting agent is used for collophanite flotation, phosphorus concentrate with the low MgO content (1.60%) can be obtained, and the high P2O5 recovery rate (90.03%) can be achieved. The low-temperature-resistant collophanite reverse-flotation collecting agent has the advantages that the range of sources of raw materials is wide, the preparing technology is simple and easy to execute, the stability is high, the environmental friendliness is achieved, and the market promotion value is high.

Description

technical field [0001] The invention relates to a phosphate rock flotation collector, in particular to a low-temperature-resistant collophosphate reverse flotation collector and a preparation method thereof, belonging to the technical field of mineral processing flotation. Background technique [0002] my country's phosphate rock resources are rich in reserves, and the distribution is relatively concentrated, but there are few rich ores and more middle and low-grade ores. 2 o 5 The average grade is only about 17%, and the collophosite is mostly, making mining and selection difficult. Most of my country's phosphate rock is used to produce phosphate fertilizers and phosphate compound fertilizers, and most of them are supplied to the domestic market. Behind the high self-sufficiency rate lies the crisis of phosphorus resource depletion. At the same time, with the development of economy and society, the demand for phosphorus resources is bound to increase. How to deal with the...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/02B03D103/06
Inventor 张行荣尚衍波何发钰李成必刘龙利李松清刘崇峻吴桂叶谭鑫
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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