METHOD FOR PREPARING ALKALINE ALKYL-(C-C)-XANTHOGENATES Russian patent published in 2004 - IPC

Abstract RU 2242463 C1

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for preparing alkaline alkyl-(C₂-C₁₂)-xanthogenates that are used broadly in flotation of sulfide ores in mining industry. Alkaline alkyl xanthogenates are prepared interaction of carbon disulfide, alcohol and alkali in an organic solvent medium at temperature 15-45^oC followed by isolation of the end product. Mixture of (C₂-C₁₂)-alcohols with the content of (C₂-C₅)-alcohols 55-90 wt.-% is used as alcohol, and benzene or toluene is used as an organic solvent. The proposed method for preparing alkaline alkyl-(C₂-C₁₂)-xanthogenates shows technological effectiveness and provides enhancing flotation properties of reagent.

EFFECT: improved preparing method, valuable technical properties of reagent.

3 cl, 9 ex

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RU 2 242 463 C1

Authors

Lisitskij V.V.

Gusakov V.N.

Dmitriev Ju.K.

Rasulev Z.G.

Akhmerov I.T.

Dates

2004-12-20—Published

2003-05-12—Filed