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 formatesInfo
- 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
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- alkali metal
- alkyl carbonates
- joint production
- metal formates
- amalgam
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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.
- 2 - - 2 -
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 |
Family
ID=48300470
Family Applications (1)
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) |
-
1961
- 1961-03-17 SU SU722121A patent/SU144840A1/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1082297A (en) | Shift reaction for the production of hydrogen | |
GB1221019A (en) | Process for the production of dihalophenols | |
SU144840A1 (en) | The method of joint production of alkyl carbonates and alkali metal formates | |
GB1148248A (en) | Method for producing an anhydrous alkali metal hydrosulphite | |
GB1347751A (en) | Process for the production of hydrated potassium carbonate | |
GB1347032A (en) | Process for producing silicic acid | |
US2925436A (en) | Production of acrylic acid and its salts | |
GB1269766A (en) | Improvements in or relating to alkali metal salt recovery | |
US1964723A (en) | Production of alkali metal carbamates | |
GB915468A (en) | A process for the selective separation of cobalt chloride and nickel chloride by solvent extraction | |
US3594420A (en) | Process for producing amines | |
SU104879A1 (en) | The method of oxidation of diacetone sorbose into diacetone-2-keto-l-gulonic acid hydrate | |
GB553317A (en) | Improvements in the production of alkaline earth metal pantothenates | |
GB698282A (en) | Improvements in or relating to the production of sodium methoxide | |
GB1207238A (en) | Method of producing sodium bicarbonate | |
US1442386A (en) | Process of making glycols | |
GB1008577A (en) | Process for the production of stable alkyl sulphonic acid ester plasticisers of low inflammability | |
US2240514A (en) | Process for preparing cyclopropane | |
GB735693A (en) | Process for the manufacture of laevulinic acid esters | |
GB1389104A (en) | Process for preparing beta, delta-dioxoenanthaldehyde dialkyl acetals | |
SU510432A1 (en) | The method of producing alkali metal hydroxides | |
GB1344850A (en) | Production and purification of light-coloured piperonyl butoxide | |
GB271589A (en) | Improvements in the manufacture of acetic acid and acetates | |
JPS54112816A (en) | Preparation of dialkyl malonate | |
GB1179673A (en) | A Process for the Production of Sebacic Acid |