A kind of preparation method of bauxite flotation desiliconization high-efficiency collector

A collector and bauxite technology, applied in flotation, solid separation and other directions, can solve the problems of poor emulsification effect of mixed collectors, difficult settlement of flotation tailings, uneven dissolution of chemicals, etc., and achieves enhanced selectivity and The effect of collecting capacity, improving mineral processing technical indicators, and good chemical stability

Active Publication Date: 2018-10-09
KUNMING METALLURGY INST
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  • Summary
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AI Technical Summary

Problems solved by technology

Commonly used bauxite collectors include carboxylic acids such as oleic acid, oxidized paraffin soap, tall oil, naphthenic acid, alkali slag, etc. The problems of these agents in the bauxite positive flotation desilication process are: Large dosage of chemicals, not resistant to low temperature, poor selectivity, low concentrate recovery rate, difficult to settle flotation tailings, and difficult to utilize backwater
For the mixed medication of bauxite collectors, the conventional dispensing method is to add a certain amount of emulsifier into a normal temperature or heated aqueous solution, and mechanically stir to obtain a flotation agent solution. The mixed collector obtained by this method There are disadvantages of poor emulsification effect, uneven dissolution of the agent, poor stability of the agent, large dosage of the agent, and low temperature resistance

Method used

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  • A kind of preparation method of bauxite flotation desiliconization high-efficiency collector

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Experimental program
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Effect test

Embodiment 1

[0032] Raw materials: PEG-600, TX-10, oleic acid, tall oil, T-60, triethanolamine;

[0033] Mass ratio: oleic acid: tall oil = 1:1;

[0034] Oleic acid: TX-10: PEG-600=1:0.2:0.1;

[0035] Oleic acid: T-60: triethanolamine=1:0.2:0.1;

[0036] Dosage: oleic acid 10kg (content 90% w / w, pure 9kg)

[0037] Tal oil 10kg (content 90% w / w, pure 9kg)

[0038] TX-10 2kg (content 90% w / w, pure 1.8kg)

[0039] PEG-600 1kg (content 90% w / w, pure 0.9kg)

[0040] T-60 2kg (content 90% w / w, pure 1.8kg)

[0041] Triethanolamine 1kg (content 90% w / w, pure 0.9kg)

[0042] operate:

[0043] A. Emulsifier preparation: Add regular amount of water to the reaction tank, stir, and gradually add TX-10 and PEG-600 until they dissolve evenly;

[0044] B. Mixing of raw materials: Gradually add oleic acid and tall oil, heat up to 40°C, and stir for 1 hour;

[0045] C. Synergistic reaction: After the reaction in step B is completed, place the prepared medicament mixture on an ultrasonic cleaning ma...

Embodiment 2

[0049] Raw materials: coconut oil diethanolamide, ether acid, oxidized paraffin soap, T-40, triethanolamine;

[0050] Mass ratio: ether acid: oxidized paraffin soap = 1:1;

[0051] Ether acid: coconut oil diethanolamide=1:0.2;

[0052] Ether acid: T-40: triethanolamine=1:0.1:0.1;

[0053] Dosage: ether acid 10kg (content 90% w / w, pure 9kg)

[0054] Oxidized paraffin soap 10kg (content 90% w / w, pure 9kg)

[0055] Coconut oil diethanolamide 2kg (content 90% w / w, pure 1.8kg)

[0056] T-40 1kg (content 90% w / w, pure 0.9kg)

[0057] Triethanolamine 1kg (content 90% w / w, pure 0.9kg)

[0058] operate:

[0059] A. Emulsifier preparation: Add regular amount of water in the reaction tank, stir, and gradually add coconut oil diethanolamide until it dissolves evenly;

[0060] B. Mixing of raw materials: Gradually add ether acid and oxidized paraffin soap, heat up to 30°C, and stir for 5 hours;

[0061] C. Synergistic reaction: After the reaction in step B is completed, place the p...

Embodiment 3

[0065] Raw materials: fatty alcohol polyoxyethylene ether, naphthenic acid, ether acid, T-20, methyl isobutyl carbinol;

[0066] Mass ratio: naphthenic acid: ether acid = 1:1;

[0067] Naphthenic acid: fatty alcohol polyoxyethylene ether = 1:1;

[0068] Naphthenic acid: T-20: methyl isobutyl carbinol = 1: 0.5: 0.5;

[0069] Dosage: naphthenic acid 10kg (content 90% w / w, pure 9kg)

[0070] Ether acid 10kg (content 90% w / w, pure 9kg)

[0071] Fatty alcohol polyoxyethylene ether 10kg (content 90% w / w, pure 1.8kg)

[0072] Methyl isobutyl carbinol 5kg (content 90% w / w, pure 0.9kg)

[0073] T-20 5kg (content 90% w / w, pure 1.8kg)

[0074] operate:

[0075] A. Emulsifier preparation: Add regular amount of water in the reaction tank, stir, and gradually add fatty alcohol polyoxyethylene ether until it dissolves evenly;

[0076] B. Mixing of raw materials: Gradually add naphthenic acid and ether acid, heat up to 70°C, and stir for 1 hour;

[0077] C. Synergistic reaction: After...

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Abstract

The invention discloses a preparation method for an efficient collecting agent for floating and desiliconizing monohydrallite. The method comprises the following steps: A) preparing an emulsifier solution; B) mixing raw materials; C) performing synergic reaction. According to the method provided by the invention, on the basis of principle of synergistic effect generated by the combination of different agents, through the effective compounding combination of carboxylic acids collecting agent, emulsifier and synergist, the components in the collecting agent can have co-adsorption and synergistic effect on the surface of monohydrallite, so that the hydrophobic property of the mineral surface can be increased, the selectivity and the collecting capacity of the agents can be enhanced and the mineral separation technical index of the monohydrallite can be increased. The preparation method provided by the invention has the advantages that the collecting agent has the characteristics of high selectivity, high collecting capacity, high drug stability, less agent dosage, low temperature resistance, and the like, the concentrate grade and the recovery rate can be increased when the collecting agent is used for separating the monohydrallite and the alumina silica ratio of concentrate ore can be effectively increased.

Description

technical field [0001] The invention belongs to the technical field of metal ore beneficiation, and relates to a preparation method of a high-efficiency collector for bauxite flotation desiliconization with simple structure and convenient use. Background technique [0002] my country's bauxite resources are mainly low- and medium-grade diaspore-type bauxite, which cannot be directly applied to the Bayer process. It must go through flotation desiliconization to increase the aluminum-silicon ratio before entering the next step. Bayer production process. The industrial application of bauxite positive flotation process in the production of alumina by beneficiation Bayer method can effectively improve the utilization rate of bauxite resources in my country, thereby improving the market competitiveness of my country's alumina industry. Bauxite flotation desiliconization collector is the most critical technology for bauxite flotation separation, and the development and synthesis of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/01B03D101/02B03D103/02
CPCB03D1/01B03D2201/02B03D2203/02
Inventor 漆静杨林简胜杨德荣唐鑫
Owner KUNMING METALLURGY INST
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