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Dialkyl amido amine methyl butylxanthate compound and synthetic method thereof

A technology of dialkylaminoaminomethyl xanthate acrylate and propylene xanthate, which is applied in the field of aminomethylxanthate acrylate compounds and their synthesis, and can solve the problem of dialkylaminomethyl xanthate. The stability of the drug is not strong, so as to achieve the effect of good beneficiation and collection performance, good collection performance and stability

Inactive Publication Date: 2012-10-03
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of medicament is used less and can reduce wastewater pollution to a certain extent, but the stability of dialkylamine methyl xanthate is not strong

Method used

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  • Dialkyl amido amine methyl butylxanthate compound and synthetic method thereof
  • Dialkyl amido amine methyl butylxanthate compound and synthetic method thereof
  • Dialkyl amido amine methyl butylxanthate compound and synthetic method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1: O-dimethylaminomethyl-S-propenyl xanthate and its synthetic method

[0046] In the general formula, R is ethyl C 2 h 5 - The product of O-dimethylaminomethyl-S-propenyl xanthate

[0047] The synthesis process:

[0048] (1) For the synthesis of dimethylaminomethanol, take 136g of 33% dimethylamine aqueous solution and put it into a reaction bottle, start stirring, add 75g of 40% formaldehyde aqueous solution dropwise, drop it for about 0.5h, react at room temperature for 2h, and then Add 2.5g of fine-grained sodium chloride salt, stir and dissolve to carry out salting-out, cool down to below 20°C and let it stand for stratification, separate the water in the lower layer, and the light yellow product in the upper layer is dimethylaminomethanol, a total of 68g is collected. The reaction formula is:

[0049]

[0050] (2) Synthesis of dimethylaminomethyl xanthate: Take 38g of carbon disulfide and 42.5g of dimethylaminomethanol into the reaction flask,...

Embodiment 2

[0054] Embodiment 2: O-diethylaminomethyl-S-propenyl xanthate and its synthetic method

[0055] In the general formula, R is ethyl C 2 h 5 - The product of O-diethylaminomethyl-S-propenyl xanthate

[0056] The synthesis process:

[0057] (1) Synthesis of diethylaminomethanol, put 73g of diethylamine into the reaction bottle, start stirring, add 75g of 40% formaldehyde solution dropwise, drop it for about 0.5h, react at room temperature for 1h, 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 it stand for stratification, separate the water in the lower layer, and the light yellow product in the upper layer is diethylamino Methanol, a total of 117 g was collected. The reaction formula is:

[0058]

[0059] (2) Synthesis of diethylaminomethyl xanthate: Take 76g of carbon disulfide and 117g of diethylaminomethanol into the reaction flask, start stir...

Embodiment 3

[0063] Embodiment 3: O-di-n-butylaminomethyl-S-propenyl xanthate and its synthesis method

[0064] In the general formula, R is n-butyl n-C 4 h 9 -The synthetic process of the product O-di-n-butylaminomethyl-S-propenyl xanthate:

[0065]

[0066] (1) Synthesis of di-n-butylaminomethanol, put 129g of di-n-butylamine into the reaction bottle, start stirring, add 75g of 40% formaldehyde solution dropwise, drop it for about 0.5h, react at room temperature for 1h, 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 it stand for stratification, separate the water in the lower layer, and the light yellow product in the upper layer is dinormal Butylaminocarbinol, 173 g collected. The reaction formula is:

[0067]

[0068] (2) Synthesis of di-n-butylaminomethyl xanthate: Take 38g of carbon disulfide and 85g of di-n-butylaminomethanol into the reaction flask,...

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Abstract

The invention relates to a dialkyl amido amine methyl butylxanthate compound. According to the compound, a general formula is R2NCH2OC(=S)SCH2CH=CH2, wherein R is alkane having 1 to 4 carbon atoms. A route for synthesizing the dialkyl amido amine methyl butylxanthate compound comprises the following steps of: (1) adding alkylamine and a formaldehyde aqueous solution into a reaction container, stirring for reacting, heating continuously, keeping the temperature for reacting, salting out, cooling, and standing for demixing to separate a superstratum oily product; (2) adding an aqueous solution prepared from carbon disulfide and sodium hydroxide into the reaction container, stirring, dripping alkyl amino methanol with stirring, and keeping the temperature; and (3) dripping chloropropene into the non-separated product with stirring, heating, keeping the temperature, stirring for reacting, standing for demixing to obtain a yellow oily substance, namely the dialkyl amido amine methyl butylxanthate compound. According to the synthetic method, the product is not needed to be purified and separated, and the mixed product containing impurities has high metallic mineral ore dressing collecting performance, and high collecting performance and stability, so that the dialkyl amido amine methyl butylxanthate compound can be used for the flotation of copper nickel ores, copper ores and mixed ores of copper lead zinc.

Description

technical field [0001] The present invention relates to a mineral dressing agent and a synthesis method thereof, in particular to a propylene aminomethylxanthate compound and a synthesis method thereof, which can be used as a collector for flotation sulfide ore and oxide ore, and can be In the flotation of copper-nickel ore, copper ore and copper-lead-zinc mixed ore. Background technique [0002] 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 adsorption or chemical adsorption in the pulp to form a hydrophobic film, increase the hydrophobicity of minerals, and thus increase the pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C329/12B03D1/012B03D101/02
Inventor 王永斌吴斌李冠军刘守信李瓛
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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