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Application

99109485/04, 1999-05-11

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Start date

1999-05-11

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Actual filing date

1999-05-11

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Published

2000-07-20

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Inventor

Starovojtov M.K.Batrin Ju.D.Gajdin L.I.Kozyrev N.A.Afanas'Ev V.N.Pestova G.A.Rudakova T.V.D'Jakonova L.V.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Orgsintez"

METHOD OF PRODUCING N-BUTYL XANTHATE Russian patent published in 2000 - IPC

Abstract RU 2152928 C1

FIELD: production of N-butyl xanthate. SUBSTANCE: method relates to production of collecting reagents fro flotation of ores of nonferrous metals, particularly, production of potassium or sodium N-butyl xanthate by reaction of carbon disulfide, potassium or sodium hydroxide, N-butyl alcohol in presence of water with their molar ratio of 1:1(2.5-3.0):(2.0-3.5) and temperature of 25-40 C with subsequent separation of xanthate by removal of liquid phase in vacuum. Process is carried out with fractional supply of N-butyl alcohol at stage of xanthation and dilution of reaction mass before drying with N-butyl alcohol and water taken in volume ratio of 1:(4.0-5.0), respectively. Technical result consists in simplification of process with preserved high yield of high quality product. EFFECT: higher efficiency. 2 ex

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RU 2 152 928 C1

Authors

Starovojtov M.K.

Batrin Ju.D.

Gajdin L.I.

Kozyrev N.A.

Afanas'Ev V.N.

Pestova G.A.

Rudakova T.V.

D'Jakonova L.V.

Dates

2000-07-20—Published

1999-05-11—Filed

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