Cellophane positive flotation collector and preparation method of cellophane positive flotation collector

A positive flotation, collector technology, applied in flotation, solid separation and other directions, can solve the problems of oleic acid being difficult to dissolve and disperse, high temperature requirements, and poor oleic acid pertinence, etc., to achieve excellent flotation. The effect of indicators, low production costs, and broad industrialization prospects

Inactive Publication Date: 2013-10-23
WUHAN INSTITUTE OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the flotation of phosphate rock, the carboxylic acid collector with the largest amount and the widest application range is oleic acid, but this collector also has several shortcomings: oleic acid is not easy to dissolve and disperse, and it is often required in production Solvent emulsification or heating treatment; when used, the temperature is generally higher than 18°C, and the dosage needs to be strictly controlled when adding. Often, it is added in stages. Oleic acid is not very specific for refractory colloidal phosphate rock. Poor low temperature resistance and hard water resistance Poor performance, large dosage of chemicals, average selectivity, high requirements on temperature, poor dispersion in pulp

Method used

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  • Cellophane positive flotation collector and preparation method of cellophane positive flotation collector
  • Cellophane positive flotation collector and preparation method of cellophane positive flotation collector
  • Cellophane positive flotation collector and preparation method of cellophane positive flotation collector

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preparation example Construction

[0024] The preparation of chlorinated oleic acid in the present invention refers to the patent chlorinated fatty acid sodium / potassium salt flotation agent and its preparation method, the patent number is ZL200810197935.8.

[0025] Haikou A3 mine, raw ore grade P 2 o 5 20.48%, MgO 0.58%, SiO 2 is 44.86%, and CaO is 20.39%. For this kind of minerals, the main task of beneficiation is to desiliconize, and the forward flotation process is commonly used in industry, and the positive selection will enrich the dolomite in the concentrate to a certain extent, so the experiment plans to use the positive selection or the forward-reverse flotation process , to ensure that the MgO content is below 1%, and achieve the purpose of effectively separating impurity minerals such as collophosite and quartz. With traditional fatty acid collectors, only P 2 o 5 The grade increased by 3 percentage points, so the positive flotation collector should choose collophosite positive flotation collec...

Embodiment 1

[0027] Ingredients: 35kg chlorinated oleic acid, 35kg stearic acid, 25kg linoleic acid and 5kg sodium hydroxide;

[0028] Add water to the reaction kettle, heat and stir, add stearic acid and heat up to 60-80°C, then add sodium hydroxide aqueous solution and stir evenly, then continue to add linoleic acid and chlorooleic acid, heat up to 130-150°C and stir for 2.5-3.5 After about an hour, a brown-black paste-like object is obtained, that is, the collector is obtained.

Embodiment 2

[0030] Ingredients: 45kg chlorooleic acid, 35kg palmitic acid, 10kg coconut oil and 10kg potassium hydroxide;

[0031] Add water to the reaction kettle, heat and stir, add palmitic acid and heat up to 80°C, then add potassium hydroxide aqueous solution and stir evenly, then continue to add coconut oil and chlorooleic acid, heat up to 150°C and stir for about 3.5 hours to obtain a brown-black paste , that is, the collector

[0032] Haikou A3 collophanite is carried out to positive flotation with the novel glenite positive flotation collector prepared in example 1 and embodiment 2. The method of positive flotation adds Na 2 CO 3 adjust p H value and inhibition of Ca 2+ , Mg 2+ , Na 2 SiO 3 Inhibit SiO 2 , (NaPO 4 ) 6 Various metals are suppressed, and then the positive flotation collector involved in the present invention is added to float the useful collophanite.

[0033] Under normal temperature, obtain data after a roughing test, example 1 data is as follows:

[0...

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Abstract

The invention relates to a cellophane positive flotation collector and a preparation method of the cellophane positive flotation collector, in particular to a cellophane positive flotation collector compounded by fatty acid and the like, wherein the basic substances comprise the following preparation raw materials in percentage by weight: 30 to 80 percent of chlorinated oleic acid, 5 percent to 60 percent of saturated higher aliphatic acid, 5 percent to 40 percent of unsaturated higher aliphatic acid and 5 percent to 20 percent of alkali, the saturated higher aliphatic acid is one of materials from tetradecanoic acid, stearic acid and palmitic acid, and the unsaturated higher aliphatic acid is one of materials from oleic acid, coconut oil and linoleic acid. By aiming at the Yunnan phosphorite characteristic, the positive flotation collector has high selectivity and high mine carrying capability, the better sorting effect is realized at the normal temperature, and excellent flotation indexes can be reached. By aiming at the refractory cellophane, the comprehensive mineral dressing efficiency and the recovery rate of phosphate concentrate after the flotation are higher.

Description

technical field [0001] The invention relates to the field of phosphate rock flotation reagents, in particular to a collophosite positive flotation collector and a preparation method thereof. Background technique [0002] Phosphate rock is an important strategic resource and plays a very important role in the national economy. China is rich in phosphate rock resources. The reserves of ore are 15.2 billion tons, ranking second in the world, accounting for about 35% of the world's total phosphorus resources, of which Yunnan, Guizhou, Hubei, Sichuan and Hunan account for about 80% of the national total. But the phosphate rocks in our country are mainly medium and low-grade phosphate rocks, and most of the middle and low-grade phosphate rocks are collophosite, which is difficult to mine and beneficiated, and the enrichment cost is high. Phosphorus is a non-renewable resource, and it is of great significance to strengthen the development of phosphate rock. [0003] In the flota...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D101/02
Inventor 张秀程黄齐茂潘志权刘璇
Owner WUHAN INSTITUTE OF TECHNOLOGY
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