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Preparation method of additive

An additive and quality technology, which is applied in the field of preparation of additives in the tannin germanium precipitation process, can solve the problems of low grade and high impurities in germanium concentrate products, and achieve the effects of improved grade, simple use method and high efficiency

Active Publication Date: 2021-03-12
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the purposes of the present invention is to provide a preparation method of additives to solve the technical problems of more impurities and low grade in germanium concentrate products

Method used

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Examples

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Effect test

preparation example Construction

[0046] According to one aspect of the present invention, the present invention provides a kind of preparation method of additive, comprises the following steps:

[0047] (1) Mix citric acid, tartaric acid, Tween-80, and alkylphenol polyoxyethylene ether evenly, add them to the sulfuric acid solution, heat up and react, and cool to room temperature to obtain solution a;

[0048] (2) Add polyethylene glycol and isomeric tridecanol polyoxyethylene ether to solution a, and continue to heat up to react to obtain solution b;

[0049] (3) Add gelatin and fatty alcohol polyoxyethylene ether to ethylene glycol, heat up to react, cool to room temperature, and drop triethylamine to obtain solution c;

[0050] (4) Dissolve solution c in a mixture of polyacrylamide and sorbitan trioleate, heat up and react, then cool to room temperature to obtain solution d;

[0051] (5) After uniformly mixing solution b and solution d in proportion, put them into an autoclave, under the protection of an ...

Embodiment 1

[0148] This embodiment provides a method for preparing and using an additive, comprising the following steps:

[0149] 1. Weigh 8.0g of citric acid, 9.0g of tartaric acid, 30.0g of Tween-80, and 57.0g of alkylphenol polyoxyethylene ether, mix them, add them to 500.0ml of sulfuric acid solution with a mass fraction of 32%, and keep the temperature at 90.0°C After 2.5 hours of conditional reaction, cool to room temperature to obtain solution a;

[0150] 2. Add 155.0 g of polyethylene glycol and 57.0 g of isomeric tridecanol polyoxyethylene ether to solution a, react at a constant temperature of 80.0 ° C for 1.5 h, and cool to room temperature to obtain solution b;

[0151] 3. Weigh 18.0g of gelatin and 18.0g of fatty alcohol polyoxyethylene ether, add them to 155.0g of ethylene glycol, react at a constant temperature of 75.0°C for 60.0min, let cool to room temperature, and add 25.0g of triethylamine dropwise , to obtain solution c after filtration;

[0152] 4. Add 5.2g of poly...

Embodiment 2

[0156] This embodiment provides a method for preparing and using an additive, comprising the following steps:

[0157] 1. Weigh 12.0g of citric acid, 18.0g of tartaric acid, 35.0g of Tween-80, and 55.0g of alkylphenol polyoxyethylene ether, mix them, add them to 650.0ml of sulfuric acid solution with a mass fraction of 40%, and keep the temperature at 100.0°C After 3.5 hours of conditional reaction, cool to room temperature to obtain solution a;

[0158] 2. Add 170.0 g of polyethylene glycol and 70.0 g of isomeric tridecanol polyoxyethylene ether to solution a, react at a constant temperature of 95.0 °C for 2.0 h, and cool to room temperature to obtain solution b;

[0159] 3. Weigh 20.0g of gelatin and 25.0g of fatty alcohol polyoxyethylene ether, add them to 180.0g of ethylene glycol, react at a constant temperature of 80.0°C for 90.0min, let cool to room temperature, and add 23.0g of triethylamine dropwise , to obtain solution c after filtration;

[0160] 4. Add 7.7g of po...

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Abstract

The invention relates to a preparation method of an additive. According to the method, the additive is prepared from citric acid, tartaric acid, Tween-80, alkylphenol ethoxylates, fatty alcohol-polyoxyethylene ether, polyethylene glycol, polyacrylamide, iso-tridecanol polyoxyethylene ether, sorbitan trioleate, sulfuric acid, ethylene glycol, triethylamine, gelatin and other substances under a series of conditions. The substances are added to germanium-containing zinc oxide smoke leachate and uniformly mixed, an effective protective layer is formed on the surface of tannin germanium slag precipitate generated in the tannin germanium precipitation process, the capacity of adsorbing impurity ions such as Zn, Fe, Mn and As in the zinc oxide smoke leachate during precipitation is weakened, thegermanium grade in tannin germanium slag is improved, and the quality of a germanium concentrate prepared in the subsequent procedure is improved. The prepared additive is small in dosage and high inefficiency, excessive additives which do not participate in the reaction can be removed in the subsequent excessive tannin removal process, subsequent procedures are not affected, and great economic value is achieved.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal smelting, in particular to a method for preparing an additive for the tannin germanium precipitation process. Background technique [0002] Germanium is a rare element, which has extensive and important applications in semiconductors, aerospace measurement and control, nuclear physics detection, optical fiber communication, infrared optics, solar cells, chemical catalysts, biomedicine and other fields, and is an important strategic resource. The distribution of germanium in the earth's crust is extremely scattered, and it is mainly associated with bauxite, lead-zinc ore and coal mines. The raw materials for extracting germanium are mainly: the enrichment of germanium in the process of various metal smelting, such as germanium-containing smoke, slag, etc.; coal Various products of combustion, such as soot, coal ash, coke, etc.; various waste materials in the germanium processing process. ...

Claims

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Application Information

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IPC IPC(8): C22B7/02C22B41/00
CPCC22B7/02C22B7/007C22B41/00Y02P10/20
Inventor 翟忠标缪应纯陈景谢刚王世雄黄章杰
Owner KUNMING UNIV OF SCI & TECH
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