SU147177A1 - The method of producing toluene - Google Patents
The method of producing tolueneInfo
- Publication number
- SU147177A1 SU147177A1 SU310809A SU310809A SU147177A1 SU 147177 A1 SU147177 A1 SU 147177A1 SU 310809 A SU310809 A SU 310809A SU 310809 A SU310809 A SU 310809A SU 147177 A1 SU147177 A1 SU 147177A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- toluene
- diphenylmethane
- producing
- benzene
- producing toluene
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Толуол служит исходным сырьем дл производства р да красителей , взрывчатых веществ, например тринитротолуола, примен етс в качестве растворител в лакокрасочной промышленности, в качестве составной части горючего дл авиационных двигателей внутреннего сгорани , а также находит широкое применение при синтезе лекарственных , душистых и других препаратов.Toluene serves as a raw material for the production of a number of dyes, explosives, such as trinitrotoluene, is used as a solvent in the paint industry, as an integral part of fuel for aircraft internal combustion engines, and is also widely used in the synthesis of medicinal, fragrant and other drugs.
Известны способы получени толуола путем выделени его из соответствуюших фракций каменноугольной смолы или путем каталитического пиролиза нефти. Известны также способы синтетического получени толуола из бензола и хлористого метила в присутствии хлористого алюмини , каталитическим крекингом крезола в присутствии водорода и т. д. Однако эти способы не обеспечивают получени толуола в необходимых количествах.Methods are known for producing toluene by isolating it from the corresponding fractions of coal tar or by catalytic pyrolysis of petroleum. There are also known methods for the synthetic production of toluene from benzene and methyl chloride in the presence of aluminum chloride, catalytic cracking of cresol in the presence of hydrogen, etc. However, these methods do not ensure the production of toluene in the required amounts.
Метод получени толуола через дибензил вл етс весьма громоздким , требующим большого расхода дефицитного сырь , весьма сложного оборудовани и крупных кап таловложений.The method for producing toluene through dibenzyl is very cumbersome, requiring a large consumption of scarce raw materials, very sophisticated equipment and large capital investments.
Предлагаемый способ получени толуола не имеет указанных недостатков и заключаетс в том, что дифенилметан пропускают в смесг) с водородом над активированным углем при температуре вьпие 400° и давлении выше 100 атм, после чего из полученно смеси выдел ют толуол известными приемами.The proposed method for producing toluene does not have these drawbacks and is that diphenylmethane is passed into a mixture with hydrogen over activated carbon at a temperature of 400 ° and a pressure above 100 atm, after which toluene is obtained from the mixture obtained by known methods.
Пример. Дифенилметан в смеси с водородол пропускают черезExample. Diphenylmethane mixed with hydrogenol is passed through
реакционную камеру с активированным углем при температуре 500° иreaction chamber with activated carbon at a temperature of 500 ° and
давлении 150 атм и полученный продукт гидрировани разгон ют наpressure of 150 atm and the resulting hydrogenation product is dispersed on
фракции, отвечающие по своим показател м бензолу, толуолу и ди фенилметану.fractions corresponding in their parameters to benzene, toluene, and diphenylmethane.
№ 147177- 2 No. 147177-2
Дл опыта было вз то 237,2 г дифенилметана и получено 228,1 г продукта гидрировапи . После ректификации имели 73,7 г бензола, 79,3 г толуола; 68,2 г дифенилметана; потер но 7 г.For the experiment, 237.2 g of diphenylmethane was taken up and 228.1 g of hydrofluoric product was obtained. After rectification, 73.7 g of benzene, 79.3 g of toluene; 68.2 g of diphenylmethane; lost but 7
В реакцию вступило 237,2-68, г дифенилметана и толуола, что составл ет 85,2% от теоретического, а выход бензола-94%. Полученный дифенилметан обладает температурой плавлени -21° и коэффициентом рефракции 1,5769 и может быть вновь использован дл получени толуола. Полученный бензол может быть использован дл получени дифенилметана.237.2-68 grams of diphenylmethane and toluene entered into the reaction, which is 85.2% of the theoretical value, and the benzene yield is 94%. The resulting diphenylmethane has a melting point of -21 ° and a refractive index of 1.5769 and can be used again to produce toluene. The resulting benzene can be used to prepare diphenylmethane.
Предмет изобретени Subject invention
Способ получени толуола, отличающийс тем, что дифенилметан пропускают с водородом над активированным углем при температуре выше 400° и давлении выше 100 аг.и, после чего выдел ют толуол известными приемами.A method of producing toluene, characterized in that diphenylmethane is passed with hydrogen over activated carbon at a temperature above 400 ° and a pressure above 100 ag. And then the toluene is separated by known techniques.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU310809A SU147177A1 (en) | 1942-08-06 | 1942-08-06 | The method of producing toluene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU310809A SU147177A1 (en) | 1942-08-06 | 1942-08-06 | The method of producing toluene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU147177A1 true SU147177A1 (en) | 1961-11-30 |
Family
ID=48302571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU310809A SU147177A1 (en) | 1942-08-06 | 1942-08-06 | The method of producing toluene |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU147177A1 (en) |
-
1942
- 1942-08-06 SU SU310809A patent/SU147177A1/en active
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