SU77424A1 - The method of producing ketene - Google Patents
The method of producing keteneInfo
- Publication number
- SU77424A1 SU77424A1 SU5049A SU5049A SU77424A1 SU 77424 A1 SU77424 A1 SU 77424A1 SU 5049 A SU5049 A SU 5049A SU 5049 A SU5049 A SU 5049A SU 77424 A1 SU77424 A1 SU 77424A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ketene
- chamber
- producing
- pyrolysis
- acetone
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Известны, на 1более рентабельный , способ промышленного получени кетена основан на термическом разложении ацетона при температурах пор дка 650-750°.It is known to be more cost-effective, the method of industrial production of ketene is based on the thermal decomposition of acetone at temperatures in the order of 650-750 °.
Технологическое оформление этого процесса имеет р д недостатков. Так проведение пиролиза в аппаратах с внешним обогревом ведет к их коррозии, а длительное соприкосновение кетена со стенками аппарата , имеющими температуру, превышающую среднюю температуру реакционной зоны, приводит к вторичной реакции и понижению выхода кетена.The technological design of this process has several disadvantages. So conducting pyrolysis in apparatus with external heating leads to corrosion, and prolonged contact of ketene with the walls of the device, having a temperature exceeding the average temperature of the reaction zone, leads to a secondary reaction and lower output of ketene.
Описываемый способ получени кетена свободен от указанных недостатков . Это достигнуто в результате обогрева ииролизной камеры и регулировани температуры в ней при помоши электрических нагревательных элементов, помещенных внутри камеры.The described method for producing ketene is free from the indicated disadvantages. This is achieved as a result of the heating of the pyrolysis chamber and the temperature control in it with the aid of electrical heating elements placed inside the chamber.
Применение внутрикамерного электрообогрева в процессе гидроЛ1 за ларов ацетона позвол ет су|1 ,ествснно понизить температуру стенок камеры и поэтому материалол дл их изготовлени могут слхжить , нержаве О1ца сталь, алюмпнпй и др.The use of an intracameral electrical heating in the process of hydroL1 for lars of acetone makes it possible to decrease the temperature of the walls of the chamber and, therefore, the material for their manufacture can also be used, stainless steel, aluminum, etc.
Кроме того, дл уменьшени возл ожности возникновени вторичных реакций производ т предварительный подогрев паров ацентона . С этой же целью, непосредственно после камеры пиролиза пары , содержащие кетен и непрореагиоовавший ацетон, направл ют в холодильник.In addition, in order to reduce the potential for the occurrence of secondary reactions, vapors of acenton are preheated. For the same purpose, directly after the pyrolysis chamber, vapors containing ketene and unreacted acetone are sent to the refrigerator.
Предмет изобретени Subject invention
Способ получени кетена пиролизом паров ацетона, отличающ и и с тем. что обогрев пиролизной камеры и регулирование температуры в ней осуществл ют при помоии электрических нагревательных элe eнтoв, помещенных внутри камеры.The method of producing ketene by pyrolysis of acetone vapors is a distinctive feature. that the heating of the pyrolysis chamber and the temperature control in it are carried out with the help of electrical heating elements placed inside the chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU5049A SU77424A1 (en) | 1945-05-10 | 1945-05-10 | The method of producing ketene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU5049A SU77424A1 (en) | 1945-05-10 | 1945-05-10 | The method of producing ketene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU77424A1 true SU77424A1 (en) | 1948-11-30 |
Family
ID=48252020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU5049A SU77424A1 (en) | 1945-05-10 | 1945-05-10 | The method of producing ketene |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU77424A1 (en) |
-
1945
- 1945-05-10 SU SU5049A patent/SU77424A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SU77424A1 (en) | The method of producing ketene | |
| MX3459E (en) | IMPROVED PROCEDURE FOR THE PREPARATION OF NICOTINIC ACID AMIDE | |
| GB1004375A (en) | Process for making fluorochlorobenzenes and hexafluorobenzene | |
| ES448524A1 (en) | Synthesis of m-benzoyl-hydratropic acid | |
| GB591780A (en) | Improvements in the manufacture of hexachloroethane | |
| FR1110724A (en) | Process for the preparation of new chemical compounds and products obtained | |
| FR917278A (en) | Process for the preparation of chemical compounds and resulting products | |
| GB981123A (en) | Improved process for the preparation of nitriles | |
| GB855880A (en) | Production of alpha hydroxyisobutyric acid | |
| FR927210A (en) | Low temperature catalytic treatment process | |
| FR907054A (en) | Furnace and process for the low temperature distillation of carbonaceous materials | |
| FR938629A (en) | Chemical process for the preparation of carbon disulfide | |
| FR922711A (en) | Catalytic reforming process and plant and resulting products | |
| FR1074984A (en) | Process to standardize the temperature inside the exothermic reaction chambers | |
| BE601379A (en) | Process for the production of complex chloramphenicol compounds and products obtained. | |
| FR914525A (en) | Manufacturing process for solid or semi-solid products starting from liquid reagents | |
| ES291694A1 (en) | Procedure for the continuous manufacture of alkaline terthtalatos (Machine-translation by Google Translate, not legally binding) | |
| FR53971E (en) | Economical chemical treatment process for manganese ores | |
| GR19015B (en) | METHOD FOR THE CONTINUOUS PREPARATION OF CLEAN 4.5.6.7.10.10 - EXACHLORO 4, 7 - INTERMETHYLENE - 4.7.8.9 - TETRAHYDROPHTANE. | |
| GR19774B (en) | BENZOTHIADIAZINE. | |
| FR898294A (en) | Heating process by chemical reaction particularly applicable to the undulating wave | |
| FR626501A (en) | Process to standardize the temperature inside exothermic chemical reaction chambers | |
| GB2011884A (en) | A Process for the Production of Benzoyl Cyanide | |
| FR935465A (en) | Process for the purification of chemical compounds and products obtained by this process | |
| OA00538A (en) | Reaction apparatus for the treatment of fluids at high temperature. |