CS203017B2 - Method of producing thionaphthene - Google Patents
Method of producing thionaphthene Download PDFInfo
- Publication number
- CS203017B2 CS203017B2 CS786032A CS603278A CS203017B2 CS 203017 B2 CS203017 B2 CS 203017B2 CS 786032 A CS786032 A CS 786032A CS 603278 A CS603278 A CS 603278A CS 203017 B2 CS203017 B2 CS 203017B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- thionaphthene
- acid
- density
- reaction
- temperature
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 22
- FCEHBMOGCRZNNI-UHFFFAOYSA-N 1-benzothiophene Chemical compound C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 title claims description 14
- 239000002253 acid Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000029087 digestion Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000011541 reaction mixture Substances 0.000 claims description 4
- 239000010409 thin film Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000011280 coal tar Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 240000002871 Tectona grandis Species 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 10
- 238000003776 cleavage reaction Methods 0.000 description 8
- 230000007017 scission Effects 0.000 description 8
- 238000004821 distillation Methods 0.000 description 5
- 238000006277 sulfonation reaction Methods 0.000 description 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 230000004992 fission Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-N Thiophosphoric acid Chemical compound OP(O)(S)=O RYYWUUFWQRZTIU-UHFFFAOYSA-N 0.000 description 1
- 238000010533 azeotropic distillation Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000000378 dietary effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 239000002641 tar oil Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/50—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
- C07D333/52—Benzo[b]thiophenes; Hydrogenated benzo[b]thiophenes
- C07D333/54—Benzo[b]thiophenes; Hydrogenated benzo[b]thiophenes with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772744066 DE2744066A1 (de) | 1977-09-30 | 1977-09-30 | Verfahren zur herstellung von thionaphthen aus thionaphthensulfonsaeure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS203017B2 true CS203017B2 (en) | 1981-02-27 |
Family
ID=6020338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS786032A CS203017B2 (en) | 1977-09-30 | 1978-09-18 | Method of producing thionaphthene |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4357472A (pl) |
| EP (1) | EP0001383B1 (pl) |
| JP (1) | JPS5488239A (pl) |
| CS (1) | CS203017B2 (pl) |
| DE (2) | DE2744066A1 (pl) |
| ES (1) | ES472754A1 (pl) |
| IL (1) | IL55659A (pl) |
| IT (1) | IT1106120B (pl) |
| PL (1) | PL114348B1 (pl) |
| SU (1) | SU860702A3 (pl) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE325712C (de) * | 1920-02-26 | 1920-09-15 | Teerverwertung M B H Ges | Verfahren zur Abscheidung von Thionaphthen aus Steinkohlenteer |
| ES447281A1 (es) * | 1975-08-07 | 1977-07-01 | Ruetgerswerke Ag | Procedimiento para la obtencion de naftaleno puro exento de azufre a partir de alquitran de hulla y de tionafteno como subproducto. |
-
1977
- 1977-09-30 DE DE19772744066 patent/DE2744066A1/de not_active Withdrawn
-
1978
- 1978-07-07 DE DE7878100329T patent/DE2860934D1/de not_active Expired
- 1978-07-07 EP EP78100329A patent/EP0001383B1/de not_active Expired
- 1978-07-29 JP JP9306278A patent/JPS5488239A/ja active Pending
- 1978-08-22 ES ES472754A patent/ES472754A1/es not_active Expired
- 1978-08-24 IT IT50848/78A patent/IT1106120B/it active
- 1978-09-18 CS CS786032A patent/CS203017B2/cs unknown
- 1978-09-26 SU SU782667904A patent/SU860702A3/ru active
- 1978-09-28 IL IL55659A patent/IL55659A/xx unknown
- 1978-09-29 PL PL1978209948A patent/PL114348B1/pl unknown
-
1980
- 1980-12-22 US US06/219,172 patent/US4357472A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0001383B1 (de) | 1981-08-12 |
| DE2744066A1 (de) | 1979-04-12 |
| IT1106120B (it) | 1985-11-11 |
| DE2860934D1 (en) | 1981-11-12 |
| JPS5488239A (en) | 1979-07-13 |
| PL114348B1 (en) | 1981-01-31 |
| SU860702A3 (ru) | 1981-08-30 |
| IT7850848A0 (it) | 1978-08-24 |
| IL55659A0 (en) | 1978-12-17 |
| EP0001383A1 (de) | 1979-04-18 |
| ES472754A1 (es) | 1979-02-16 |
| US4357472A (en) | 1982-11-02 |
| IL55659A (en) | 1982-07-30 |
| PL209948A1 (pl) | 1979-06-04 |
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