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Calcium carbonate inhibitor for fluorite beneficiation and preparation method thereof

A calcium carbonate and inhibitor technology, used in flotation, solid separation, etc., can solve the problems of poor selectivity, difficult separation of carbonate minerals and fluorite, and unstable inhibition, achieving low cost and high selectivity. , a wide range of effects

Inactive Publication Date: 2020-09-18
SHANDONG DAMING FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a calcium carbonate inhibitor for fluorite beneficiation and its preparation method to solve the difficulty in effectively separating carbonate minerals and fluorite due to poor selectivity and unstable inhibitory action in the background technology. The problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This example provides a calcium carbonate inhibitor for fluorite ore dressing and its preparation method. The calcium carbonate inhibitor for fluorite ore dressing includes: 650 parts of 10% caustic starch (effective content of caustic starch is 65 parts), tannin 10 parts of acid, 17 parts of sodium sulfate and 8 parts of sodium lignosulfonate.

[0029] The preparation of the calcium carbonate inhibitor for fluorite beneficiation: add 10 parts of tannic acid, 17 parts of sodium sulfate, and 8 parts of sodium lignosulfonate to 650 parts of 10% caustic starch, stir until fully mixed, and the obtained fluorite The effective content of calcium carbonate inhibitor for stone dressing is 14.60%, and it is used according to the active ingredient when used.

[0030] Pharmacy system and process: A fluorite concentrator in Tongren City, Guizhou Province, selected fluorite ore CaF 2 39.58%, CaCO 3 11.39%, using a process of roughing once, sweeping once, beneficiating seven times...

Embodiment 2

[0032] The embodiment provides a calcium carbonate inhibitor for fluorite ore dressing and its preparation method. The calcium carbonate inhibitor for fluorite ore dressing includes: 10% caustic starch 470 (effective content of caustic starch is 47 parts), tannin extract 16 parts , Sodium sulfate 21 Sodium lignosulfonate 16 parts.

[0033] The preparation of calcium carbonate inhibitor for fluorite beneficiation: add 16 parts of tannin extract, 21 parts of sodium sulfate, and 16 parts of sodium lignosulfonate to 470 parts of 10% caustic starch, stir until fully mixed, and the obtained fluorite The effective content of calcium carbonate inhibitor for mineral processing is 19.12%, and it is used according to the active ingredient when used.

[0034] Pharmacy system and process: a fluorite ore in Nanyang, Henan, was selected into the CaF of the fluorite mine 2 28.20%, CaCO 3 32.23%, using one roughing, one sweeping, seven beneficiation, middlings 1, 2, 3, 4 sweeping back to ro...

Embodiment 3

[0036] The embodiment provides a calcium carbonate inhibitor for fluorite ore dressing and its preparation method. The calcium carbonate inhibitor for fluorite ore dressing includes: 55 parts of yellow dextrin, 12 parts of tannin extract, 23 parts of sodium sulfate, sodium lignosulfonate 10 servings.

[0037] The preparation of the calcium carbonate inhibitor for mineral processing of fluorite: 55 parts of yellow dextrin, 12 parts of tannin extract, 23 parts of sodium sulfate and 10 parts of sodium lignosulfonate, and the dry powder are fully mixed evenly, and the obtained calcium carbonate inhibitor for mineral processing of fluorite is The active substance of the agent is 100%, and it is measured and used according to the active ingredient when used.

[0038] Pharmacy system and process: A fluorite concentrator in Tongren City, Guizhou Province, selected fluorite ore CaF 2 44.65%, CaCO 3 22.26%, using a process of roughing once, beneficiating seven times, and returning to...

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Abstract

The invention discloses a calcium carbonate inhibitor for fluorite beneficiation and a preparation method of the calcium carbonate inhibitor. The inhibitor comprises modified starch, tannic acid, sulfate and sodium lignin sulfonate. The preparation method comprises the following steps: preparing a solution type inhibitor and preparing a dry powder type inhibitor, wherein the solution is prepared by adding starch and sodium hydroxide into water according to a mass ratio of 75: 25, heating and stirring at 80 DEG C for 30 minutes to obtain a 10% caustic starch solution, adding tannic acid, sulfate and sodium lignin sulfonate into the prepared a caustic starch solution, and uniformly stirring and mixing, and the dry powder is prepared by uniformly mixing tannic acid, sulfate, dextrin and sodium lignin sulfonate in proportion. According to the inhibitor, calcium carbonate minerals with the content of 10-32% in fluorite raw ores can be effectively separated, so that the concentrate grade reaches 97% or above, the recovery rate is increased to 85% or above, carbonate in target minerals is effectively removed, and the inhibitor is particularly suitable for refractory fluorite ores with high calcium carbonate content, easy to prepare, convenient to use, non-toxic and environmentally friendly.

Description

technical field [0001] The invention relates to high calcium carbonate fluorite ore flotation separation technology, in particular to a calcium carbonate inhibitor for fluorite ore dressing and a preparation method thereof. Background technique [0002] Fluorite, also known as fluorspar, is a common mineral in nature and can coexist with many other minerals. The main component is calcium fluoride, which crystallizes into octahedrons and cubes, and the crystals have a glass luster. Fluorite minerals come from volcanic magma. During the cooling process of the magma, the gas-water solution separated by the magma contains fluorine. When the solution rises along the cracks, the fluoride ions in the gas-water solution combine with the calcium ions in the surrounding rocks to form fluorine. Calcium, fluorite is formed after cooling and crystallization. [0003] Although our country is rich in fluorite resources, there are few single deposits, most of which are associated deposits....

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D1/02B03D101/06B03D103/04
CPCB03D1/018B03D1/02B03D2201/06B03D2203/04
Inventor 李国利刘平王志强张晓晓庞增昌宋琨
Owner SHANDONG DAMING FINE CHEM CO LTD
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