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Phyllosilicate mineral depressor for sulfide ore floatation and preparation method thereof

A layered silicate and sulfide ore technology, applied in flotation, solid separation, etc., can solve the problems of large amount of beneficiation reagents, poor selective inhibition effect, and low selection index

Active Publication Date: 2010-09-29
ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the flotation of molybdenum ore containing talc, chlorite, and nickel sulfide minerals containing serpentine, due to the influence of talc, serpentine, chlorite, muscovite, biotite, pyrophyllite, kaolinite and other layered silicates Influenced by minerals, the flotation of molybdenite and nickel sulfide minerals is greatly affected, the amount of beneficiation reagents is large, the selection index is low, and the impurity content in the concentrate exceeds the standard. Conventional water glass, sodium hexametaphosphate, tannic acid, and lignin Sodium sulfonate, carboxymethyl cellulose, humic acid, tannin extract, etc. have poor selective inhibitory effects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take 9kg of esterified modified cornstarch, 15kg of sodium alginate, 11kg of methylene dinaphthalene sulfonate, and 25kg of sodium hexametaphosphate, add them into a high-speed mixing granulator, mix them evenly, granulate them, and dry them in a drying oven to obtain this product. The special-effect inhibitor for sulfide ore flotation layered silicate minerals is characterized in that it is especially suitable for nickel sulfide ores containing gangues such as snakebite, talc and mica.

Embodiment 2

[0025] Get 2.5kg of sodium alginate, 3.2kg of methylene dinaphthalene sulfonate, and 4.3kg of sodium hexametaphosphate, add them into a high-speed mixing granulator to mix, granulate, and dry in a drying oven to obtain the sulfide ore float of the present invention. Select layered silicate mineral specific inhibitor, which is especially suitable for talc-containing molybdenum sulfide ore.

Embodiment 3

[0027] Take 8kg of esterified modified cornstarch, 14kg of sodium alginate, 8kg of carboxymethyl cellulose, and 25kg of sodium hexametaphosphate, add them into a high-speed mixing granulator to mix, granulate, and dry in a drying oven to obtain the vulcanized powder of the present invention. It is a specific inhibitor for ore flotation layered silicate minerals, and its characteristic is that it is especially suitable for nickel sulfide ores containing gangues such as snakebite, talc, and mica.

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PUM

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Abstract

The invention provides a phyllosilicate mineral depressor for sulfide ore floatation and a preparation method thereof. The phyllosilicate mineral depressor for the sulfide ore floatation is prepared from the following components in part by weight: 0 to 20 parts of modified corn starch, 8 to 30 parts of sodium alginate, 1 to 35 parts of carboxymethyl cellulose or polyanionic cellulose or methylenenapadisilate dinaphthalene sulfonate, and 5 to 55 parts of sodium hexametaphosphate. The preparation method comprises the following steps of: selecting the reagents according to types of depressed minerals; adding the reagents in a high-speed mixing granulator in the set ratio for granulation; and drying the obtained grains to obtain the phyllosilicate mineral depressor for the sulfide ore floatation. The product has the characteristics of small dosage, good depression selectivity, low toxicity, and the like. The specific depressor is mainly applied to depressing phyllosilicate minerals such as talcs, serpentines, chlorites, kaolinites and the like during the sulfide ore floatation, thus the specific depressor is favorable for improving floatation concentrate grade and metal recovery rate, and is particularly suitable for floating talc-containing molybdenites and nickel sulfide ores.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a layered silicate mineral inhibitor for sulfide ore flotation and a preparation method thereof. Background technique [0002] In the flotation of molybdenum ore containing talc, chlorite, and nickel sulfide minerals containing serpentine, due to the influence of talc, serpentine, chlorite, muscovite, biotite, pyrophyllite, kaolinite and other layered silicates Influenced by minerals, the flotation of molybdenite and nickel sulfide minerals is greatly affected, the amount of beneficiation reagents is large, the selection index is low, and the impurity content in the concentrate exceeds the standard. Conventional water glass, sodium hexametaphosphate, tannic acid, and lignin Sodium sulfonate, carboxymethyl cellulose, humic acid, tannin extract, etc. have poor selective inhibitory effects. Contents of the invention [0003] The purpose of the present inven...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/06
Inventor 赵平张艳娇刘广学常学勇绍伟华彭团儿
Owner ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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