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Flotation method of siliceous and calcareous collophanite

A technology of collophosite and silicon-calcium collophosphate, which is applied in the field of processing silica-calcium collophosphate by roasting reverse flotation technology, can solve the problems of immature technology, not being popularized and applied, and high production cost, and achieve simple and novel technology, Good flotation effect and low beneficiation cost

Inactive Publication Date: 2018-12-04
BLUESTAR LEHIGH ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are mainly three flotation processes for low-grade calcium-siliceous collophosphate rock: direct-reverse flotation process, reverse-direct flotation process, and double-reverse flotation process. The process of the operating concentrator is a forward-reverse flotation process, but this process has high production costs and complicated processes, and the quality of the forward flotation process is affected by the quality of the backwater, and the treatment of the backwater must be Supporting tailings pond
However, reverse-positive flotation and double-reverse flotation have not been popularized and applied due to immature technology.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1, a kind of flotation method of siliceous calcareous collophosite, the method comprises the following steps:

[0018] (1) Calcining the crushed collophanite raw ore at 500°C; the calcination time is 2 hours;

[0019] (2) Feed the calcined ore into the mill, grind it to a suitable grinding fineness, and then feed it into the reverse flotation roughing mixing tank; the grinding fineness of the ore grinding operation is -74μm, and the raw ore accounts for 50 %;

[0020] (3) Add dispersants, inhibitors and collectors to the stirring tank for slurry adjustment; the dispersant is water glass; the inhibitor is starch compound; the collector is fatty acid soap Organic-like substances; the dosage is appropriate;

[0021] (4) The prepared ore pulp is sent to the reverse flotation roughing operation, the roughing foam is swept once, and the products in the tank are selected once, and finally the concentrate product is obtained.

Embodiment 2

[0022] Embodiment 2, a kind of flotation method of siliceous calcareous collophosite, the method comprises the following steps:

[0023] (1) Calcining the crushed collophanite raw ore at 950°C; the calcination time is 0.5h;

[0024] (2) Feed the calcined ore into the mill, grind it to a suitable grinding fineness, and then feed it into the reverse flotation roughing mixing tank; the grinding fineness of the ore grinding operation is -74μm, and the raw ore accounts for 90 %;

[0025] (3) Add dispersants, inhibitors and collectors to the stirring tank for slurry adjustment; the dispersant is water glass; the inhibitor is starch compound; the collector is fatty acid soap organic matter;

[0026] (4) The prepared ore pulp is sent to the reverse flotation roughing operation, the roughing foam is swept for 4 times, and the products in the tank are selected for 4 times, and finally the concentrate product is obtained.

Embodiment 3

[0027] Embodiment 3, a kind of flotation method of siliceous calcareous collophosite, the method comprises the following steps:

[0028] (1) Calcining the crushed collophanite raw ore at 600°C; the calcination time is 1h;

[0029] (2) Feed the calcined ore into the mill, grind it to a suitable grinding fineness, and then feed it into the reverse flotation roughing mixing tank; the grinding fineness of the ore grinding operation is -74μm, and the raw ore accounts for 70 %;

[0030] (3) Add dispersants, inhibitors and collectors to the stirring tank for slurry adjustment; the dispersant is water glass; the inhibitor is starch compound; the collector is fatty acid soap organic matter;

[0031] (4) The prepared ore pulp is sent to the reverse flotation roughing operation, the roughing foam is swept twice, and the product in the tank is sorted three times, and finally the concentrate product is obtained.

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Abstract

The invention relates to a flotation method of siliceous and calcareous collophanite. The method comprises the following steps that (1) crushed collophanite crude ores are calcined at the temperatureof 500-950 DEG C; (2) the calcined ores are fed into a mill, ground into the appropriate ore-grinding fineness through ore-grinding operation and then fed into a reverse flotation roughing stirring tank; (3) a dispersant, an inhibitor and a collector are added into in the stirring tank, and pulp-mixing operation is conducted; and (4) mixed ore pulp is fed in for reverse flotation roughing operation, roughing foam is scavenged for 1-4 times, a product in the tank is concentrated by 1-4 times, and finally a concentrate product is obtained. The flotation method of the siliceous and calcareous collophanite has the advantages of simple and novel process, stable procedure, good flotation effect, low ore dressing cost and the like, and provides a new separation way for development and utilizationof the siliceous and calcareous collophanite.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a method for treating siliceous-calcic colloidal phosphate by adopting a roasting reverse flotation process. Background technique [0002] my country is very rich in phosphate rock resources, and the resource base reserves rank second in the world, but more than 94% of them are medium and low-grade phosphate rocks. This kind of ore must be extracted from carbonate gangue and silicate gangue at the same time to meet the requirements of downstream operations. Require. At present, for low-grade calcareous collophosphine, there are mainly three flotation processes: direct-reverse flotation process, reverse-direct flotation process, and double reverse flotation process. The process of the operating concentrator is a forward-reverse flotation process, but this process has high production costs and complicated processes, and the quality of the forward flotation pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02B03B7/00B03D101/02B03D101/06B03D103/06
CPCB03B7/00B03D1/021B03D1/025B03D2201/005B03D2201/02B03D2201/06B03D2203/06
Inventor 李丰单连勇杨勇刘云涛
Owner BLUESTAR LEHIGH ENG INST CO LTD
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