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

A technology of aminomethyl cyanoethyl xanthate and n-propyl aminomethyl xanthate cyanoethyl ester is applied in the field of aminomethyl cyanoethyl xanthate compound and its preparation, and achieves good metal mineral beneficiation The effect of collection performance, 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

[0017] But for amine methanol 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 methyl xanthogenic acid cyanogen ethyl ester compound and preparation method as well as collector thereof
  • Amino methyl xanthogenic acid cyanogen ethyl ester compound and preparation method as well as collector thereof
  • Amino methyl xanthogenic acid cyanogen ethyl ester compound and preparation method as well as collector thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: A kind of cyanoethyl diethylaminomethyl xanthate and preparation method thereof

[0048] The structural formula of diethylaminomethyl xanthate cyanoethyl ester compound is:

[0049]

[0050] The raw materials used in the preparation method and their weights are: 73g of diethylamine, 75g of 40% formaldehyde solution, 76g of carbon disulfide and 54g of acrylonitrile. It consists of the following two steps:

[0051] (1) To prepare diethylaminomethanol, the method is to put 73g of diethylamine into a reaction bottle, start stirring, add 75g of 40% formaldehyde solution dropwise, drop it for about 0.5h, react at room temperature for 1h, and then heat up to 45 ~65°C, continue to react for 2.5h, then add 1.5g of fine-grained sodium chloride salt, stir and dissolve for salting out, cool down to below 20°C and let stand for stratification, separate the water in the lower layer, and the light yellow product in the upper layer is diethylamine Altogether 117 g we...

Embodiment 2

[0053] Embodiment 2: A kind of diethylaminomethyl xanthate cyanoethyl ester and preparation method thereof

[0054] The raw materials used in its preparation method and their weight are: 73g of diethylamine, 75g of 40% formaldehyde aqueous solution, 76g of carbon disulfide, 133g of 30% aqueous sodium hydroxide solution, and 89.5g of β-chloropropionitrile, including the following three steps:

[0055] (1) Take 73g of diethylamine and put it into a reaction bottle, start stirring, add 75g of 40% formaldehyde solution dropwise, and finish dropping in about 0.5h. Ethylaminomethanol, the product does not need to be separated, and the next reaction can be continued after cooling down to below 20°C.

[0056] (2) Take 76g of carbon disulfide and add it to the above-mentioned reaction flask. The temperature of the water bath is below 20°C. Start stirring, add 133g of 30% sodium hydroxide aqueous solution dropwise, and finish adding dropwise within about 1 hour. Control the reaction tem...

Embodiment 3～43

[0058] Embodiment 3-43: A kind of cyanoethyl aminoxanthate and its preparation method

[0059] Raw materials used and proportioning ratio are as shown in Table 1, and the preparation method of each embodiment is identical with example 1 or example 2.

[0060] Table 1

[0061]

[0062]

[0063]

[0064]

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PUM

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Abstract

The invention relates to an amino methyl xanthogenic acid cyanogen ethyl ester compound and a preparation method thereof; and the compound can serve 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 methyl xanthogenic acid cyanogen ethyl ester compound and the preparation method thereof. The other aim of the invention is to provide the amino methyl 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 methyl ester collector and enlarge the range of selection of a flotation agent. The amino mthyl 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; and the mixed product containing impurities has better ore dressing and collecting performance for the metallic minerals. 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 aminomethylxanthate compound and a preparation method thereof. The compound can be used as a metal mineral flotation collector for recovery of 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 phy...

Claims

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Application Information

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