GB1266676A - - Google Patents
Info
- Publication number
- GB1266676A GB1266676A GB1266676DA GB1266676A GB 1266676 A GB1266676 A GB 1266676A GB 1266676D A GB1266676D A GB 1266676DA GB 1266676 A GB1266676 A GB 1266676A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dichloroethane
- column
- boilers
- low
- distillation column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
- C07C17/395—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound
Abstract
1,266,676. Purification of 1,2-dichloroethane. KNAPSACK A.G. 7 April, 1970 [9 April, 1969], No. 16345/70. Heading C2C. 1,2-Dichloroethane recovered from the incomplete thermal cracking of 1,2-dichloroethane to vinyl chloride and contaminated with low boilers boiling below 83.7‹ C. and high boilers boiling above 83.7‹ C. is purified by reaction with gaseous chlorine in the presence of ferric chloride at 30-85‹ C. to convert low boilers to high boilers, and distillation of 1,2-dichloroethane from the high boilers. The process may be effected by (a) chlorinating contaminated 1,2- dichloroethane simultaneously with the chlorination of ethylene to form 1,2-dichloroethane, and distilling off the 1,2-dichloroethane, or (b) distilling the contaminated 1,2-dichloroethane in a low boiler distillation column, continuously removing a 1,2-dichloroethane-low boiler mixture from the head of the column, chlorinating the mixture, recycling the reaction mixture to the low boiler distillation column, and either (1) removing a 1,2-dichloroethane high boiler mixture from the base of the column and passing it to a high boiler distillation column, or (11) continuously removing 1,2-dichloroethane at a position below the column head and removing high boilers from the column base. A single column may serve as both a low boiler distillation column and a high boiler distillation column.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691917933 DE1917933C3 (en) | 1969-04-09 | Process for reducing the content of 2-chlorobutadiene (1,3), carbon tetrachloride and benzene in 1,2-dichloroethane, which was recovered to vinyl chloride during incomplete thermal cleavage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1266676A true GB1266676A (en) | 1972-03-15 |
Family
ID=5730635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1266676D Expired GB1266676A (en) | 1969-04-09 | 1970-04-07 |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS543846B1 (en) |
| AT (1) | AT294026B (en) |
| BE (1) | BE748722A (en) |
| BR (1) | BR7018143D0 (en) |
| CA (1) | CA946416A (en) |
| CH (1) | CH529703A (en) |
| CS (1) | CS187307B2 (en) |
| DK (1) | DK125917B (en) |
| ES (1) | ES378366A1 (en) |
| FR (1) | FR2038347B1 (en) |
| GB (1) | GB1266676A (en) |
| HU (1) | HU162991B (en) |
| NL (1) | NL150416B (en) |
| RO (1) | RO61949A (en) |
| SU (1) | SU415863A3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE759409A (en) * | 1969-11-26 | 1971-05-25 | Knapsack Ag | PROCESS FOR LOWERING THE 2-CHLOROBUTADIENE- (1,3) CONTENT OF 1,2-DICHLORETHANE RECOVERED IN THE INCOMPLETE THERMAL DISSOCIATION OF VINYL CHLORIDE |
| FR2211429B1 (en) * | 1972-12-27 | 1976-08-27 | Rhone Progil | |
| DE2754891C3 (en) * | 1977-12-09 | 1981-02-26 | Wacker-Chemie Gmbh, 8000 Muenchen | Process for the purification of unreacted 1,2-dichloroethane from vinyl chloride production |
| DE4012538A1 (en) * | 1990-04-19 | 1991-10-24 | Wacker Chemie Gmbh | METHOD FOR PURIFYING UNreacted 1,2-DICHLORETHANE FROM A 1,2-DICHLORETHANE PYROLYSIS PROCESS |
| FR2746097B1 (en) * | 1996-03-14 | 1998-04-24 | METHOD FOR CONVERTING THE LOW BOILING POINT BY-PRODUCTS FORMED DURING THE THERMAL CRACKING OF 1,2-DICHLOROETHANE |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1466058A (en) * | 1965-01-29 | 1967-01-13 | Stauffer Chemical Co | Purification of ethylene dichloride containing trichlorethylene |
-
1970
- 1970-03-24 CH CH452370A patent/CH529703A/en not_active IP Right Cessation
- 1970-03-24 CA CA078,256A patent/CA946416A/en not_active Expired
- 1970-04-02 RO RO6296070A patent/RO61949A/ro unknown
- 1970-04-07 NL NL7004977A patent/NL150416B/en not_active IP Right Cessation
- 1970-04-07 GB GB1266676D patent/GB1266676A/en not_active Expired
- 1970-04-07 AT AT315570A patent/AT294026B/en not_active IP Right Cessation
- 1970-04-08 SU SU1425331A patent/SU415863A3/en active
- 1970-04-08 DK DK175370A patent/DK125917B/en unknown
- 1970-04-08 ES ES378366A patent/ES378366A1/en not_active Expired
- 1970-04-09 FR FR7012880A patent/FR2038347B1/fr not_active Expired
- 1970-04-09 BE BE748722D patent/BE748722A/en not_active IP Right Cessation
- 1970-04-09 JP JP3046170A patent/JPS543846B1/ja active Pending
- 1970-04-09 HU HUKA001246 patent/HU162991B/hu unknown
- 1970-04-09 BR BR21814370A patent/BR7018143D0/en unknown
- 1970-04-09 CS CS236770A patent/CS187307B2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK125917B (en) | 1973-05-21 |
| SU415863A3 (en) | 1974-02-15 |
| NL150416B (en) | 1976-08-16 |
| NL7004977A (en) | 1970-10-13 |
| FR2038347A1 (en) | 1971-01-08 |
| HU162991B (en) | 1973-05-28 |
| RO61949A (en) | 1977-08-15 |
| BR7018143D0 (en) | 1973-01-09 |
| DE1917933A1 (en) | 1970-12-03 |
| CA946416A (en) | 1974-04-30 |
| BE748722A (en) | 1970-10-09 |
| AT294026B (en) | 1971-11-10 |
| FR2038347B1 (en) | 1974-03-15 |
| ES378366A1 (en) | 1972-06-16 |
| CS187307B2 (en) | 1979-01-31 |
| JPS543846B1 (en) | 1979-02-27 |
| CH529703A (en) | 1972-10-31 |
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| Publication | Publication Date | Title |
|---|---|---|
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| GB1266676A (en) | ||
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| GB1275698A (en) | Process for reducing the concentration of 2-chlorobutadiene-1(1,3) in 1,2-dichloroethane recovered in the incomplete thermal cracking into vinyl chloride | |
| GB1350531A (en) | Method of producing 1,2-dichloroethane | |
| JPS56135428A (en) | Purification of 1,2-dichlroethane | |
| GB1290607A (en) | ||
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| FR2081871A1 (en) | Methylene chloride | |
| ES357471A1 (en) | Process for reducing the 2-chlorobutadiene-(1,3) and benzene contents of 1,2-dichloroethane recovered from 1,2-dichlororethane thermally cracked into vinyl chloride | |
| JPS5444621A (en) | Continuous production of alpha,alpha' dichlorobenzene | |
| GB1438246A (en) | Purification of chlorinated hydrocarbons contaminated with bromo hydrocarbons | |
| GB1172009A (en) | Improvements in or relating to the Separation of Reaction Mixtures Resulting from the Chlorination of Aliphatic Hydrocarbons | |
| JPS54122206A (en) | Preparation of carbon tetrachloride and hexachloroethane from substance containing chlorinated hydrocarbons having number of carbon atoms of 1 and 2 | |
| GB1316709A (en) | Recovery of chlorinated compounds from heavy residues formed during the manufacture of chlorinated compounds | |
| GB1422309A (en) | Purification of vinyl chloride | |
| GB1335998A (en) | Production of chlorinated ethylene derivatives | |
| GB1231634A (en) | ||
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| JPS56131535A (en) | Chlorination of xylenol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 414F | Notice of opposition given (sect. 14/1949) | ||
| 414A | Case decided by the comptroller ** specification amended (sect. 14/1949) | ||
| SPA | Amended specification published | ||
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |