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Amino ethyl xanthogenic acid cyanogen ethyl ester compound and preparation method as well as collector thereof

A technology for synthesizing aminoethylxanthate cyanoethyl ester and aminoethylxanthate, which is applied in organic chemistry, solid separation, flotation, etc., and achieves the effect of simple preparation process

Inactive Publication Date: 2012-05-23
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] But for aminoethanol xanthate, there is no report and application of developing corresponding xanthate cyanoethyl ester derivatives on the basis of retaining its basic structure

Method used

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  • Amino ethyl xanthogenic acid cyanogen ethyl ester compound and preparation method as well as collector thereof
  • Amino ethyl xanthogenic acid cyanogen ethyl ester compound and preparation method as well as collector thereof
  • Amino ethyl xanthogenic acid cyanogen ethyl ester compound and preparation method as well as collector thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1: A kind of diethylamino ethyl xanthate cyanoethyl ester and preparation method thereof

[0055] The structural formula of diethylaminoethyl xanthate cyanoethyl ester compound is:

[0056]

[0057] The raw materials and their weights used in the preparation method are: 73g of diethylamine, 80.5g of chloroethanol, 133g of 30% aqueous sodium hydroxide solution, 76g of carbon disulfide, and 53g of acrylonitrile, including the following two steps:

[0058] (1) Take 73g of diethylamine and put it into the reaction bottle, start stirring, add dropwise 80.5g of chloroethanol, then dropwise add 133g of 30% aqueous sodium hydroxide solution, control the reaction temperature to not exceed 50°C, continue stirring after the dropwise addition React at 50° C. for 1 h, then stand to cool and separate the layers, and the oil layer is separated to obtain diethylaminoethanol, and a total of 117 g is obtained.

[0059] (2) Take 117g of diethylamine ethanol and 76g of carbo...

Embodiment 2

[0060] Embodiment 2: A kind of diethylamino ethyl xanthate cyanoethyl ester and preparation method thereof

[0061] The raw materials and their weights used in the preparation method are: 129g of monochloroethane, 61g of aminoethanol, 266g of 30% aqueous sodium hydroxide solution, 76g of carbon disulfide, and 53g of acrylonitrile, including the following two steps:

[0062] (1) Add 129g of monochloroethane and 61g of aminoethanol into the reaction flask, start stirring and raise the temperature to 45-90°C, add dropwise 266g of 30% sodium hydroxide aqueous solution, and neutralize the hydrogen chloride produced by the reaction, about 0.5-1.5h After the dropwise addition, continue to stir and react at 45~90°C for 0.5~1.5h, then let it stand for cooling and separate the layers, and separate the oil layer, which is diethylaminoethanol, and a total of 116g is obtained.

[0063] (2) Put 116g of diethylaminoethanol and 76g of carbon disulfide into the reaction bottle together, contro...

Embodiment 3～22

[0064] Embodiment 3-22: A kind of cyanoethyl aminoxanthate and its preparation method

[0065] The raw materials used in each embodiment and the proportioning ratio are shown in Table 1, and the preparation method is the same as Example 1 or Example 2.

[0066] Table 1

[0067]

[0068]

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PUM

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Abstract

The invention relates to amino ethyl xanthogenic acid cyanogen ethyl ester compound and a preparation method thereof. The compound serves as a metallic mineral flotation collector to be used for recycling sulphide ore or oxidized ore containing metals in foam flotation. The aim of the invention is to provide the amino ethyl xanthogenic acid cyanogen ethyl ester compound and the preparation method thereof. The other aim of the invention is to provide the amino ethyl xanthogenic acid cyanogen ethyl ester to serve as a new sulfide mineral or oxidized mineral flotation collector and an application method of the flotation collector so as to enrich the variety of the xanthogenic acid cyanogen ethyl ester collector and enlarge the range of selection of a flotation agent. The amino ethyl xanthogenic acid cyanogen ethyl ester compound synthesized by the method is generally of oily liquid, has special smell and little solubility and is slightly lower than water in specific gravity; the product is not needed to be purified and separated, is an effective collector for natural copper, gold, nickel, copper, lead, zinc and other sulfides and particularly can be used as the collector for nickel ores when a copper and nickel ores are floated. The preparation process is simple, efficient and economic; and the crude product can be used as the flotation collector; and the conversion yield of the crude product is in the range of 65%-100%.

Description

Technical field: [0001] The invention relates to cyanoethyl aminoethyl xanthate compound and a preparation method thereof. The compound can be used as a metal mineral flotation collector to recover metal-containing sulfide ore or oxide ore in froth flotation. Background technique: [0002] The content of metal minerals in the ore is not high, and it is generally necessary to enrich the valuable metal minerals through mineral processing technology to obtain qualified concentrate products before they can be used in the smelting industry. Foam flotation is an important non-ferrous metal mineral processing technology. In the foam flotation technology, collectors, foaming agents, regulators, inhibitors and other flotation agents need to be added to create conditions to make the target minerals easy to float and Other minerals are not easy to float, so as to achieve the purpose of separation. Collector is a kind of agent that can be adsorbed on the surface of minerals by physical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C329/16B03D1/012B03D101/02
Inventor 王永斌
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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