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Collophanite direct-reverse flotation collecting agent and preparation method and application thereof

A technology of positive and negative flotation and collophosite, which is applied in flotation, solid separation, etc., can solve the problems of increased production cost of phosphate concentrate and complex soil-embedded relationship, etc., and achieves high comprehensive efficiency of ore dressing, simple preparation process, and easy The effect of the operation

Active Publication Date: 2016-02-24
WUHAN INSTITUTE OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The intercalation relationship of various minerals in these medium and low-grade ores is complicated, which leads to a substantial increase in the production cost of phosphorous concentrate

Method used

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  • Collophanite direct-reverse flotation collecting agent and preparation method and application thereof
  • Collophanite direct-reverse flotation collecting agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A collophanite forward and reverse flotation collector is prepared by the following method:

[0024] (1) Preparation of adsorbent: Weigh 500g of collephosite tailings in a 2L beaker, add excess dilute hydrochloric acid (the concentration of dilute hydrochloric acid is 17% to 19%) to react for 25 minutes, filter, wash the solid with water three times, and dry Standby; take 60g of the dried solid and put it in a mortar, add 30g of aluminum hydroxide and grind it evenly, transfer it to a crucible and calcine at 800°C for 3 hours to cool, and grind to obtain an adsorbent for use;

[0025] (2) Take 80g of vegetable oil residue in a 1L beaker, add 4g of hydrogen peroxide, stir and heat up at 80°C for 50 minutes, then add 8g of the adsorbent obtained in step (1), add 300ml of distilled water after continuing to stir for 30 minutes, stand still and cool to take the upper milk The turbid liquid was placed in a beaker; then the temperature was raised to 90°C, 32g of stearic acid ...

Embodiment 2

[0027] A collophanite forward and reverse flotation collector is prepared by the following method:

[0028] (1) Preparation of adsorbent: Weigh 500g of collephosite tailings in a 2L beaker, add excess dilute hydrochloric acid (the concentration of dilute hydrochloric acid is 17% to 19%) to react for 30 minutes, filter, wash the solid with water three times, and dry Standby; take 70g of the dried solid and put it in a mortar, add 30g of aluminum hydroxide and grind it evenly, transfer it to a crucible and calcine at 850°C for 4 hours to cool, and grind to obtain an adsorbent for use;

[0029] (2) Take 100g of vegetable oil residue in a 1L beaker, add 8g of hydrogen peroxide, stir and heat up at 90°C for 40 minutes, then add 10g of the adsorbent obtained in step (1), continue stirring for 40 minutes, then add 400ml of distilled water, cool still and take the upper milk Put the turbid liquid in a beaker, heat up to 100°C, add 40g of stearic acid, stir for 3 hours, and put the bla...

Embodiment 3

[0031] A collophanite forward and reverse flotation collector is prepared by the following method:

[0032] (1) Preparation of adsorbent: Weigh 500g of collophosite tailings in a 2L beaker, add excess dilute hydrochloric acid (the concentration of dilute hydrochloric acid is 17% to 19%) to react for 40 minutes, filter, wash the solid with water three times, and dry Standby; take 80g of the dried solid and put it in a mortar, add 40g of aluminum hydroxide and grind it evenly, transfer it to a crucible and calcine at 900°C for 5 hours to cool, and grind it to obtain an adsorbent for use;

[0033] (2) Take 150g of vegetable oil residue in a 1L beaker, add 16g of hydrogen peroxide, stir and heat up at 100°C for 50 minutes, then add 15g of the adsorbent obtained in step (1), add 500ml of distilled water after continuing to stir for 50 minutes, stand still and cool to take the upper milk Put the turbid liquid in a beaker, raise the temperature to 110°C, add 48g of stearic acid, stir...

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Abstract

The invention belongs to the technical field of flotation collecting agents, and particularly relates to a collophanite direct-reverse flotation collecting agent and a preparation method and application thereof. The collophanite direct-reverse flotation collecting agent is prepared from vegetable oil residues, hydrogen peroxide, adsorbent, stearic acid, sodium hydroxide and diethyl phthalate. The mass ratio of the vegetable oil residues to sodium hydroxide to adsorbent to stearic acid to sodium hydroxide to diethyl phthalate is 10-15:0.5-2:1-2:4-7:2-5:0.4-1.3. The collophanite direct-reverse flotation collecting agent is high in selectivity and ore carrying capacity aiming at the characteristic of collophanite, can be used as a collecting agent of direct flotation desilicication and can also be used as a collecting agent of reverse flotation magnesium removal. Good selectivity and foamability are achieved, the comprehensive mineral separation efficiency is high, and raw material cost is low. Certain cost advantages are achieved, and wide industrial prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of flotation collectors, and in particular relates to a glenite forward-reverse flotation collector and a preparation method and application thereof. Background technique [0002] Phosphate rock is the raw material for the production of phosphate fertilizer, phosphoric acid, elemental phosphorus, phosphate and phosphide. The amount of phosphate rock in my country is large but poor, and the average grade is only about 17% to 18%. As time goes by, there are fewer and fewer rich ores and easy-to-separate ores, while more and more difficult-to-separate ores, and most of them are low-grade ores. The intercalation relationship of various minerals in these low-grade ores is complicated, which leads to a substantial increase in the production cost of phosphorous concentrate. Therefore, it is of great significance to study new collectors with low price, readily available raw materials and excellent flotation perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D101/02B03D103/06
CPCB03D1/018B03D2201/007B03D2201/02B03D2201/06B03D2203/06
Inventor 潘志权沈博玮周红程清蓉张华丽
Owner WUHAN INSTITUTE OF TECHNOLOGY
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