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Manganese carbonate ore floatation agent and floatation method

A technology of manganese carbonate ore and flotation agent, which is applied in flotation, solid separation and other directions, can solve the problems of complex flotation process, high cost and complicated process, and achieves simplified flotation process flow, improved flotation efficiency and production cost. reduced effect

Inactive Publication Date: 2014-04-16
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up, there are currently two main methods for the beneficiation of manganese carbonate, one is the combination of magnetic separation and flotation, which will lead to the introduction of iron impurities, which is not conducive to the subsequent electrolytic utilization of manganese ore; the other is a single flotation method , but there are generally disadvantages such as troublesome preparation of flotation agents, low selectivity, complex flotation process, and low flotation efficiency. There are also problems that various inhibitors need to be added in the flotation process, and the process is complicated and the cost is high.

Method used

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  • Manganese carbonate ore floatation agent and floatation method
  • Manganese carbonate ore floatation agent and floatation method
  • Manganese carbonate ore floatation agent and floatation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The flotation agent is prepared as follows:

[0020] (1) Take 15 grams of soybean oil and 30ml of distilled water in a three-necked flask, add 0.3 grams of sodium dodecylbenzenesulfonate, stir and dissolve, dropwise add 1.5g mass percent concentration to be catalyzed by 98% concentrated sulfuric acid, and heat up to 95%. Condensed and refluxed at °C for 15 hours, cooled and separated, added enough absolute ethanol to dissolve the upper oil phase, and then separated the upper layer of ethanol again to retain the upper ethanol liquid, and rotary evaporation to remove the ethanol to obtain A.

[0021] (2) Weigh 2.8 g of hydroxylamine hydrochloride into a round-bottomed flask, add 10 ml of ethanol, cool down to about 0 °C in an ice-water bath, add 1.61 g of NaOH, stir for 0.5 hours, filter, and wash the filtered product with an appropriate amount of methanol to obtain Filtrate B.

[0022] (3) Transfer the filtrate B to a round-bottomed flask, heat it to 30°C, slowly add A,...

Embodiment 2

[0024] The flotation agent is prepared as follows:

[0025] (1) Take 15g of soybean oil and 45ml of distilled water in a three-necked flask, add 0.3g of Tween 80 and stir to dissolve, dropwise add 1.5g of concentrated sulfuric acid with a mass percentage concentration of 78%, and heat up to 95°C for condensation and reflux for 15 hours. Cool and separate the liquid, add an appropriate amount of anhydrous ethanol to dissolve the supernatant, and then separate the supernatant again to retain the supernatant, and remove the solvent by rotary evaporation to obtain A.

[0026] (2) Weigh 3.5g of hydroxylamine hydrochloride into a round-bottomed flask, add 10ml of ethanol, cool down to about 0°C in an ice-water bath, add 2.4g of NaOH, stir for 1 hour, filter, and wash with an appropriate amount of methanol to obtain filtrate B.

[0027] (3) Transfer the filtrate B to a round-bottomed flask, heat it to 45°C, slowly add A dropwise, stir for 2 hours, add an appropriate amount of NaOH so...

Embodiment 3

[0029] The flotation agent is prepared as follows:

[0030] (1) Take 15g soybean oil and 60ml distilled water in a three-necked bottle, add 0.6g sodium dodecylbenzenesulfonate, stir and dissolve, dropwise add 2.25g concentrated sulfuric acid with a mass percentage concentration of 98%, and heat up to 95°C Condensing and refluxing for 10 hours, cooling and separating, adding an appropriate amount of anhydrous ethanol to dissolve the upper layer liquid, separating the upper layer liquid again to retain the upper layer liquid, and removing the solvent by rotary evaporation to obtain A.

[0031](2) Weigh 5.6g of hydroxylamine sulfate into a round-bottomed flask, add 10ml of ethanol, cool down to about 0°C in an ice-water bath, add 4.8g of NaOH, stir for free for 0.5 hours, filter, and wash with an appropriate amount of methanol to obtain filtrate B.

[0032] (3) Transfer the filtrate B to a round-bottomed flask, heat it to 50°C, slowly add A dropwise, stir and react for 2 hours, a...

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Abstract

The invention provides a manganese carbonate ore floatation agent and a flotation method. The floatation agent is prepared by taking soybean oil and hydroxylamine hydrochloride or hydroxylamine sulphate as raw materials and enabling the product obtained after the soybean oil is emulsified to react with the product obtained after the hydroxylamine hydrochloride or the hydroxylamine sulphate is neutralized through the alkali. The floatation method for recycling the manganese carbonate through the floatation agent comprises the step of raw ore processing and the step of closed loop floatation. The floatation agent has good electivity for the manganese carbonate, the grade of the flotation concentrate produced by processing the low-grade manganese carbonate ore with the raw ore grade ranging from 8% to 12% through the closed loop circulation floatation technology including the steps of coarse processing, rough processing and sweeping can be improved to be more than 20%, the manganese recycling rate is larger than 85%, no inhibitors need to be added during the floatation process, and the whole production cost is obviously reduced.

Description

technical field [0001] The invention relates to a manganese carbonate ore flotation agent and a flotation method, in particular to a flotation agent for recovering manganese carbonate from manganese carbonate ore and a flotation method based on the flotation agent, belonging to the technical field of mineral flotation. Background technique [0002] Manganese occupies a very important strategic position in the national economy. Manganese ferroalloys, manganese salts and other manganese compounds are one of the most widely used materials in the development of chemical and metallurgical industries. Among the manganese ore reserves in my country, the reserves of rich manganese ore (manganese oxide ore containing more than 30% manganese and manganese carbonate ore containing more than 25% manganese) only account for 6.4%, and some manganese rich ore still needs to be processed before it can be used, while the reserves of lean manganese ore account for the whole country. 93.6% of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/001B03B1/00B03D103/04
Inventor 陈涛梁欢周凤张飞霞徐晓晴严春杰葛文陈婷杨祥
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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