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Calcium carbonate inhibitor for fluorite ore flotation and preparation method thereof

A calcium carbonate and inhibitor technology, which is applied in the field of ore dressing inhibitors, can solve problems such as difficult to achieve effective separation of calcite and fluorite ore, inability to inhibit calcium carbonate, waste of resources, etc., and achieve low cost, low ph value, and high recovery rate. Improved effect

Inactive Publication Date: 2016-12-07
洛阳丰瑞氟业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Fluorite deposits mainly include silicates, silicic acids, carbonates, fluorite deposits symbiotic with barite, and fluorite deposits symbiotic with polymetallics. The crystal lattices of these two minerals contain the same Ca 2+ As a result, the surface physical and chemical properties of the two minerals are similar, so the collectors and inhibitors acting on the surface of the two minerals have similar effects, and it is difficult to achieve effective separation of calcite and fluorite ore;
[0003] When the existing fluorite mines mostly use flotation for ore sorting, usually only water glass is added as an inhibitor, which cannot effectively inhibit calcium carbonate, and the ore CaF 2 Low recovery rate, resulting in waste of resources

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: The raw material composition of this embodiment is: 42 parts of water glass, 15 parts of sulfuric acid, 8 parts of sodium hexametaphosphate, 9 parts of sodium sulfate, 5 parts of alum.

[0018] The preparation method of this embodiment comprises the following steps:

[0019] (a) Weigh water glass, sulfuric acid, sodium hexametaphosphate, sodium sulfate, and alum respectively according to the above proportions, place them in separate containers, add water, stir, and dilute to 10% respectively;

[0020] (b) Slowly pour diluted sulfuric acid into the water glass diluted in step (a), stir after pouring, and the stirring time is 10 minutes;

[0021] (c) Dilute sodium hexametaphosphate and sodium sulfate in step (a), pour them into the mixed colloid that has been stirred in step (b) successively, stir after pouring, and the stirring time is 12 minutes;

[0022] (d) Pour the alum weighed according to the above ratio into the mixed colloid that has been stirred i...

Embodiment 2

[0024] Embodiment two: the raw material composition of this embodiment is: 42 parts of water glass, 18 parts of sulfuric acid, 9 parts of sodium hexametaphosphate, 10 parts of sodium sulfate, 7 parts of alum.

[0025] The preparation method of this embodiment comprises the following steps:

[0026] (a) Weigh water glass, sulfuric acid, sodium hexametaphosphate, sodium sulfate, and alum respectively according to the above proportions, place them in separate containers, add water, stir, and dilute to 10% respectively;

[0027] (b) Slowly pour diluted sulfuric acid into the water glass diluted in step (a), stir after pouring, and the stirring time is 10 minutes;

[0028] (c) Dilute sodium hexametaphosphate and sodium sulfate in step (a), pour them into the mixed colloid that has been stirred in step (b) successively, stir after pouring, and the stirring time is 12 minutes;

[0029] (d) Pour the alum weighed according to the above ratio into the mixed colloid that has been stirre...

Embodiment 3

[0031] Embodiment three: the raw material composition of this embodiment is: 48 parts of water glass, 23 parts of sulfuric acid, 14 parts of sodium hexametaphosphate, 14 parts of sodium sulfate, 8 parts of alum.

[0032] The preparation method of this embodiment: comprises the following steps:

[0033] (a) Weigh water glass, sulfuric acid, sodium hexametaphosphate, sodium sulfate, and alum respectively according to the above proportions, place them in separate containers, add water, stir, and dilute to 10% respectively;

[0034] (b) Slowly pour diluted sulfuric acid into the water glass diluted in step (a), stir after pouring, and the stirring time is 10 minutes;

[0035] (c) Dilute sodium hexametaphosphate and sodium sulfate in step (a), pour them into the mixed colloid that has been stirred in step (b) successively, stir after pouring, and the stirring time is 12 minutes;

[0036] (d) Pour the alum weighed according to the above ratio into the mixed colloid that has been st...

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Abstract

The invention discloses a calcium carbonate inhibitor for fluorite ore flotation. The inhibitor is composed of the following raw materials in parts by weight: 40-50 parts of water glass, 15-25 parts of sulfuric acid, 8-15 parts of sodium hexametaphosphate, 8-15 parts of sodium sulfate and 5-10 parts of alums. The inhibitor disclosed by the invention has the advantages of small dosage, low cost, stable performance and wide application range, can effectively improve the floatation rate of fluorite ores, can effectively eliminate coagulated and activated fluorite ores by adding the water glass, the sulfuric acid, the sodium hexametaphosphate, the sodium sulfate and the alums, and can inhibit silicon dioxide and carbonate in the ores, so that the concentrate output grade and quality of the ores can be improved, and the CaF2 recovery rate is obviously improved.

Description

technical field [0001] The invention relates to an inhibitor for ore dressing, in particular to a calcium carbonate inhibitor for flotation of fluorite ore. Background technique [0002] Fluorite deposits mainly include silicates, silicic acids, carbonates, fluorite deposits symbiotic with barite, and fluorite deposits symbiotic with polymetallics. The crystal lattices of these two minerals contain the same Ca 2+ As a result, the surface physical and chemical properties of the two minerals are similar, so the collectors and inhibitors acting on the surface of the two minerals have similar effects, and it is difficult to achieve effective separation of calcite and fluorite ore; [0003] When the existing fluorite mines mostly use flotation for ore sorting, usually only water glass is added as an inhibitor, which cannot effectively inhibit calcium carbonate, and the ore CaF 2 The recovery rate is low, resulting in waste of resources. Contents of the invention [0004] In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/002B03D101/06B03D103/04
CPCB03D1/002B03D2201/06B03D2203/04
Inventor 黄正威
Owner 洛阳丰瑞氟业有限公司
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