Method for simultaneous anti-flotation of carbonate and silicate in phosphorus ore

A reverse flotation and carbonate technology, applied in flotation, solid separation, etc., can solve the problems of many types of chemicals, large dosage of chemicals, and complicated system of chemicals, so as to simplify the process and system of chemicals, and reduce the dosage and cost of chemicals. Effect

Inactive Publication Date: 2016-01-27
BLUESTAR LEHIGH ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of the above two flotation processes exist, the process is long, there are many types of re

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0020] Embodiment 1, a method for reverse flotation of carbonate and silicate in phosphate rock simultaneously, its steps are as follows:

[0021] (1) Put phosphate rock into the mill for grinding;

[0022] (2) Desliming the phosphate rock slurry after grinding to remove the fine-grained grade; the fine-grained grade slime is -0.038mm;

[0023] (3) The remaining coarse-grained ore pulp enters the phosphorus inhibitor mixing tank, and the phosphorus inhibitor is added to the mixing tank to adjust the slurry;

[0024] (4) After the slurry is adjusted by the phosphorus inhibitor, the slurry enters the collector mixing tank, and the collector is added to the mixing tank to adjust the slurry;

[0025] (5) After the slurry is adjusted by the collector, the slurry enters the flotation machine for phosphate rock reverse flotation, the floating foam is carbonate minerals and silicate minerals, and the bottom flow in the tank is phosphorus concentrate.

Embodiment 2

[0026] Embodiment 2, in the simultaneous reverse flotation method of carbonate and silicate in a kind of phosphate rock described in embodiment 1, the fine-grained ore slime described in step (2) is -0.030mm, and the rest are the same as in embodiment 1 same.

Embodiment 3

[0027] Embodiment 3, in the simultaneous reverse flotation method of carbonate and silicate in a kind of phosphate rock described in embodiment 1, the fine-grained ore slime described in step (2) is -0.020mm, and the rest are the same as in embodiment 1 same.

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PUM

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Abstract

The invention relates to a method for simultaneous anti-flotation of carbonate and silicate in phosphorus ore. The method comprises the specific steps that phosphate ore is added into a mill to be ground; the ground phosphate ore pulp is subjected to desliming to remove fine fraction; rest coarse ore pulp enters a phosphorus inhibitor agitator, and a phosphorus inhibitor is added into the agitator for pulp mixing; after pulp mixing is conducted through the phosphorus inhibitor, the ore pulp enters a collecting agent agitator, and a collecting agent is added into the agitator for pulp mixing; and after pulp mixing is conducted through the collecting agent, the ore pulp enters a flotation machine for phosphorus ore anti-flotation, floating foam is carbonate minerals and silicate minerals, and underflow in a tank is phosphorus concentrate. By the adoption of the method, the carbonate and the silicate in the phosphorus ore can be floated out simultaneously, the flotation process and the flotation reagent system are simplified, and the reagent use amount and the cost of phosphorus ore anti-flotation are reduced.

Description

technical field [0001] The invention belongs to the technical field of phosphate rock beneficiation, in particular to a simultaneous reverse flotation method for carbonate and silicate in phosphate rock. Background technique [0002] In phosphate rock flotation, many low-grade and medium-grade phosphate rocks need to remove carbonate minerals and silicate minerals at the same time. The flotation process usually used is: forward and reverse flotation process or double reverse flotation process. The positive and negative flotation process is to add alkali and water glass to inhibit silicate, add positive flotation collector to select phosphate and carbonate minerals, and then add inorganic acid to phosphate and carbonate to inhibit phosphate, Carbonate collectors are added for reverse flotation to remove carbonates, and finally phosphorous concentrates are obtained. The double reverse flotation process is to add inorganic acid to inhibit phosphate, add carbonate collector to ...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D1/02B03D101/06B03D101/02B03D103/06
CPCB03D1/018B03D1/021B03D2201/02B03D2201/06B03D2203/06
Inventor 冯春晖宋文义刘升林刘云涛
Owner BLUESTAR LEHIGH ENG INST CO LTD
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