Collecting agent for phosphorite reverse flotation calcite

A collector and reverse flotation technology, used in flotation, solid separation, etc., can solve the problems of poor selectivity of collectors and poor collection effect, and achieve good collection capacity, good water solubility, and good collection efficiency. weak effect

Active Publication Date: 2015-01-28
BLUESTAR LEHIGH ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a high-efficiency, good selectivity, water-soluble Collector for reverse flotation calcite in phosphate rock with low production cost

Method used

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  • Collecting agent for phosphorite reverse flotation calcite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1, a kind of phosphate rock reverse flotation collector, this collector is made of the raw material of following percentage by weight:

[0036] Fatty acid polyoxyethylene ester salt 40%;

[0037] Alkyl polyoxyethylene ether phosphate monoester salt 50%;

[0038] Fatty alcohol polyoxyethylene ether 5%;

[0039] Span 20 5%;

[0040] The general formula of described fatty acid polyoxyethylene ester salt is as follows:

[0041] R 1 COO(CH 2 CH 2 O) n m

[0042] where: R 1 Represents an alkyl group with 6~18 carbon atoms, n=5, M is Ka;

[0043] The general formula of described alkyl polyoxyethylene ether phosphate monoester salt is as follows:

[0044] R 2 O(CH 2 CH 2 O) n P=O(OM) 2

[0045] where: R 2 It represents an alkyl group with 6~12 carbon atoms, n=3, and M is Na.

[0046] The general formula of described fatty alcohol polyoxyethylene base ether is as follows:

[0047] R 3 O(CH 2 CH 2 O) n h

[0048] where: R 3 Represents ...

Embodiment 2

[0049] Embodiment 2, a kind of phosphate rock reverse flotation collector, this collector is made of the raw material of following percentage by weight:

[0050] Fatty acid polyoxyethylene ester salt 80%;

[0051] Alkyl polyoxyethylene ether phosphate monoester salt 14%;

[0052] Fatty alcohol polyoxyethylene ether 5%;

[0053] Span 20 1%;

[0054] The general formula of described polyoxyethylene fatty acid ester salt is as follows:

[0055] R 1 COO(CH 2 CH 2 O) n m

[0056] where: R 1 Represents an alkyl group with 6~18 carbon atoms, n=3, M is Ka or Na;

[0057] The general formula of described alkyl polyoxyethylene ether phosphate monoester salt is as follows:

[0058] R 2 O(CH 2 CH 2 O) n P=O(OM) 2

[0059] where: R 2 Represents an alkyl group with 6~12 carbon atoms, n=5, M is Ka or Na.

[0060] The general formula of described fatty alcohol polyoxyethylene base ether is as follows:

[0061] R 3 O(CH 2 CH 2 O) n h

[0062] where: R 3 Represen...

Embodiment 3

[0063] Embodiment 3, a kind of phosphate rock reverse flotation collector, this collector is made of the raw material of following percentage by weight:

[0064] Fatty acid polyoxyethylene ester salt 55%;

[0065] Alkyl polyoxyethylene ether phosphate monoester salt 15%;

[0066] Fatty alcohol polyoxyethylene ether 20%;

[0067] Span 20 10%;

[0068] The general formula of described polyoxyethylene fatty acid ester salt is as follows:

[0069] R 1 COO(CH 2 CH 2 O) n m

[0070] where: R 1 Represents an alkyl group with 6~18 carbon atoms, n=4, M is Ka or Na;

[0071] The general formula of described alkyl polyoxyethylene ether phosphate monoester salt is as follows:

[0072] R 2 O(CH 2 CH 2 O) n P=O(OM) 2

[0073] where: R 2 Represents an alkyl group with 6~12 carbon atoms, n=4, M is Ka or Na.

[0074] The general formula of described fatty alcohol polyoxyethylene base ether is as follows:

[0075] R 3 O(CH 2 CH 2 O) n h

[0076] where: R 3 Repr...

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Abstract

The invention discloses a collecting agent for phosphorite reverse flotation calcite, the collecting agent is composed of the components in following mass percent: 40-80% of fatty acid polyoxyethylene ester salt, 14-50% of alkyl polyoxyethylene ether phosphate monoester salt, 5-20% of fatty alcohol polyoxyethylene ether and 1-20% of span 20. The collecting agent is suitable for phosphorite reverse flotation calcite. Compared with the fatty acid collecting agent, the collecting agent has strong collecting capability and high selectivity; compared with the alpha-amido aryl phosphoric acid collecting agent, the price is low, the dosage is little, and the material is convenient. The collecting agent overcomes the defects of processing calcite in phosphorite by conventional flotation processing method that the collecting capability is poor, the recovery rate is low and the medicine cost is high. The collecting agent has obvious superiority on indicators in beneficiation and has new breakthrough.

Description

technical field [0001] The invention belongs to the field of phosphate rock flotation, in particular to a highly selective collector for reverse flotation of calcite in phosphate rock. Background technique [0002] At present, most of the phosphorous concentrate powder is obtained through ore dressing. The purpose of beneficiation is to remove gangue minerals in phosphate rock. In the flotation of apatite, siliceous minerals and carbonate minerals are the most common gangue components. Silicon-containing minerals are mainly quartz or cristobalite, clay minerals and others such as feldspar and mica. Clay minerals are mostly removed by scrubbing, desliming and other methods in the beneficiation of phosphate rock; quartz, chalcedony, etc. also show poorer floatability than apatite in flotation, even if the embedded particle size is fine, generally It is still better to be selected under the circumstances, and can be removed by positive flotation. The carbonate gangues are m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/006B03D101/02B03D103/06
Inventor 杨勇刘云涛刘养春
Owner BLUESTAR LEHIGH ENG INST CO LTD
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