SU76949A2 - The method of obtaining trichlorobenzene - Google Patents
The method of obtaining trichlorobenzeneInfo
- Publication number
- SU76949A2 SU76949A2 SU380650A SU380650A SU76949A2 SU 76949 A2 SU76949 A2 SU 76949A2 SU 380650 A SU380650 A SU 380650A SU 380650 A SU380650 A SU 380650A SU 76949 A2 SU76949 A2 SU 76949A2
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- trichlorobenzene
- obtaining
- autoclave
- reaction
- mixture
- Prior art date
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Известен способ получени трихлорбензола по авт. св. № 72720 действием растворов едких щелочей на гексахлОрциклогексан (s органическом растворителе).A known method for the preparation of trichlorobenzene according to ed. St. No. 72720 by the action of caustic alkali solutions on hexachlOrcyclohexane (s organic solvent).
Предла1аемь й способ получени трихлорбензола в отличие от известного получаетс посредством :взаимодействи гексахлорциклогексанов с гидроокисью кальци в автоклаве под давлением в водной среде при температурах 120-200°С.The proposed method of obtaining trichlorobenzene, in contrast to the known method, is obtained by: reacting hexachlorocyclohexanes with calcium hydroxide in an autoclave under pressure in an aqueous medium at temperatures of 120-200 ° C.
Преи.мундество этого способа заключаетс в ускорении реакций образовани трихлорбензола и значительного повышени выхода его. Новый способ дает возможность более полного выделени трихлорбензола из образующихс эмульсий путем их подкислени .The advantage of this method is to accelerate the reactions of formation of trichlorobenzene and significantly increase its yield. The new method enables more complete isolation of trichlorobenzene from the emulsions formed by acidification.
Пример 1. 291 кг смеси изомеров гексахлорци:клогексана, 115 кг извести пушонки и 700 кг воды перемешивают в автоклаве при 170° в течение двух часов. При этом образуетс трихлорбензол, который после спуска давлени из автоклава отгон етс с острым паром. Выход трихлорбензола составл ет 95%Example 1. 291 kg of a mixture of isomers of hexachloro: clohexane, 115 kg of fluff lime and 700 kg of water are stirred in an autoclave at 170 ° for two hours. This forms trichlorobenzene, which, after the pressure has been released, is distilled from the autoclave with live steam. The yield of trichlorobenzene is 95%.
Отв. редактор М. М. АкишинEd. editor M. M. Akishin
ОТ стехиометрии. Образовавшийс при реакции раствор хлористого кальци выпускаетс из автоклава и направл етс дл использовани непосредственно или после предварительной концентрации.From stoichiometry. The calcium chloride solution formed during the reaction is discharged from the autoclave and sent for use directly or after prior concentration.
Пример II. 291 кг смеси изомеров гексахлсрциклогекса а с 115 кг гидрата окиси кальци (пушонка) и 700 кг воды перемешивают в автоклаве в течение двух часов при температуре 170°С и после спуска давлени реакционна смесь выпускаетс в нейтрализатор, где слабо подкисл етс сол ной, азотной пли иной кислотой, и далее через фильтр спускаетс в отстойник, где отдел етс т желый трихлорбензол .Example II 291 kg of a mixture of isomers of hexachrcyclohexane from 115 kg of calcium oxide hydrate (fuzz) and 700 kg of water are stirred in an autoclave for two hours at a temperature of 170 ° C and after the pressure has been released, the reaction mixture is discharged into a neutralizer where hydrochloric and nitrogen is weakly acidified another acid, and then down through the filter into a settling tank, where heavy trichlorobenzene is separated.
Предмет изобретени Способ получени трихлорбензола по авт. св. Ло 72720, о т л и ч а ющ и и с тем, что процесс взаимодействи гексахлорциклогексана с гидроокисью кальци провод т в вод ной среде в автоклаве при температурах 120-200°, а образовавшуюс эмульсию трихлорбензола разрушают подкислением.The subject of the invention. A method for producing trichlorobenzene according to the authors. St. At 72720, it is also possible that the reaction of hexachlorocyclohexane with calcium hydroxide is carried out in an aqueous medium in an autoclave at temperatures of 120-200 ° C, and the resulting emulsion of trichlorobenzene is destroyed by acidification.
Редактор В. Ф. СмирновEditor V.F. Smirnov
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU380650A SU76949A2 (en) | 1948-06-21 | 1948-06-21 | The method of obtaining trichlorobenzene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU380650A SU76949A2 (en) | 1948-06-21 | 1948-06-21 | The method of obtaining trichlorobenzene |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU72720A Addition SU22583A1 (en) | 1930-07-03 | 1930-07-03 | Spanner key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU76949A2 true SU76949A2 (en) | 1948-11-30 |
Family
ID=48261616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU380650A SU76949A2 (en) | 1948-06-21 | 1948-06-21 | The method of obtaining trichlorobenzene |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU76949A2 (en) |
-
1948
- 1948-06-21 SU SU380650A patent/SU76949A2/en active
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