SU144840A1 - The method of joint production of alkyl carbonates and alkali metal formates - Google Patents

The method of joint production of alkyl carbonates and alkali metal formates

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Publication number
SU144840A1
SU144840A1 SU722121A SU722121A SU144840A1 SU 144840 A1 SU144840 A1 SU 144840A1 SU 722121 A SU722121 A SU 722121A SU 722121 A SU722121 A SU 722121A SU 144840 A1 SU144840 A1 SU 144840A1
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SU
USSR - Soviet Union
Prior art keywords
alkali metal
alkyl carbonates
joint production
metal formates
amalgam
Prior art date
Application number
SU722121A
Other languages
Russian (ru)
Inventor
Л.И. Антропов
В.Д. Семченко
Д.П. Семченко
В.А. Смирнов
Original Assignee
Л.И. Антропов
В.Д. Семченко
Д.П. Семченко
В.А. Смирнов
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Л.И. Антропов, В.Д. Семченко, Д.П. Семченко, В.А. Смирнов filed Critical Л.И. Антропов
Priority to SU722121A priority Critical patent/SU144840A1/en
Application granted granted Critical
Publication of SU144840A1 publication Critical patent/SU144840A1/en

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Description

Известен способ получени  алкилкарбонатов щелочных металлов реакцией углекислого газа и алкогол та щелочного металла.A known method for producing alkali metal alkyl carbonates is the reaction of carbon dioxide and an alkali metal alcoholate.

Предложенный способ совместного получени  алкилкарбонатов и формиатов щелочных металлов отличаетс  тем, что на алифатический спирт и амальгаму щелочного металла действуют при температуре 20-50° углекислотой под давлением до 50 атм.The proposed method for the joint preparation of alkyl carbonates and alkali metal formates is characterized in that the aliphatic alcohol and alkali metal amalgam are operated at a temperature of 20-50 ° C with carbon dioxide under a pressure of up to 50 atm.

Пример. Автоклав заполн етс  безводным этиловым спиртом, который насыщаетс  обезвоженным углекислым газом, после чего ввод т 0,2-0,3% амальгамы натри . Реакцию провод т при темиературе 20° и интенсивном перемещивании раствора. Давление углекислого газа поддерживают равным 10 атм. Периодически по мере разложени , когда концентраци  натри  снижаетс  до 0,01-0,02%, амальгаму замен ют на свежую, а раствор отдел ют от выпадающих в осадок этилкарбоната и формиата натри , которые затем раздел ют соответствующими методами экстрагировани .Example. The autoclave is filled with anhydrous ethyl alcohol, which is saturated with dehydrated carbon dioxide, after which 0.2-0.3% sodium amalgam is added. The reaction is carried out at a temperature of 20 ° and intensive movement of the solution. The pressure of carbon dioxide is maintained at 10 atm. Periodically, as they decompose, when the sodium concentration drops to 0.01-0.02%, the amalgam is replaced with fresh, and the solution is separated from precipitated ethyl carbonate and sodium formate, which are then separated by appropriate extraction methods.

После отделени  осадка спиртовый раствор, содержащий 0,1 г-экв/л формиата и 0,02 г-экв/л этилкарбоната, донасыщают спиртом, направл   вновь в автоклав, и цикл начинаетс  заново. Средн   скорость разложени  амальгамы составл ет 880 с/л ее поверхности в автоклаве.After separating the precipitate, the alcohol solution containing 0.1 g-eq / l of formate and 0.02 g-eq / l of ethyl carbonate is saturated with alcohol, sent back to the autoclave, and the cycle begins anew. The average decomposition rate of amalgam is 880 s / l of its surface in an autoclave.

В результате реакции на Г кг натри , вз того в виде амальгамы, образуетс  1,36 кг форлишта натри  и 2,63 кг этилкарбоната.As a result of the reaction to H kg of sodium, taken as an amalgam, 1.36 kg of sodium forlite and 2.63 kg of ethyl carbonate are formed.

Дальнейшее повыщение скорости реакции может быть осуществлено за счет применени  более высокого давлени  углек1;слого газа в реакторе, например давлени  в 25 или 50 атм, а также проведением реакции при повыщенных темиерат фах, например до 40-50°.A further increase in the reaction rate can be achieved by applying a higher coal pressure; 1 a gas layer in the reactor, for example, a pressure of 25 or 50 atm, as well as by conducting a reaction at elevated rates, for example, 40-50 °.

№ 144840 Предмет изобретени № 144840 The subject invention

Способ совместного получени  алкилкарбонатов и формиа ов щелочных металлов, отличающийс  тем, что на алифатический спирт и амальгаму щелочного металла действуют при 20-50° углекислотой под давлением до 50 атм.The method of joint preparation of alkyl carbonates and alkali metal forms, characterized in that the aliphatic alcohol and alkali metal amalgam are operated at 20-50 ° C with carbon dioxide under a pressure of up to 50 atm.

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SU722121A 1961-03-17 1961-03-17 The method of joint production of alkyl carbonates and alkali metal formates SU144840A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU722121A SU144840A1 (en) 1961-03-17 1961-03-17 The method of joint production of alkyl carbonates and alkali metal formates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU722121A SU144840A1 (en) 1961-03-17 1961-03-17 The method of joint production of alkyl carbonates and alkali metal formates

Publications (1)

Publication Number Publication Date
SU144840A1 true SU144840A1 (en) 1961-11-30

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Application Number Title Priority Date Filing Date
SU722121A SU144840A1 (en) 1961-03-17 1961-03-17 The method of joint production of alkyl carbonates and alkali metal formates

Country Status (1)

Country Link
SU (1) SU144840A1 (en)

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