GB1302146A - - Google Patents
Info
- Publication number
- GB1302146A GB1302146A GB3076071A GB3076071A GB1302146A GB 1302146 A GB1302146 A GB 1302146A GB 3076071 A GB3076071 A GB 3076071A GB 3076071 A GB3076071 A GB 3076071A GB 1302146 A GB1302146 A GB 1302146A
- Authority
- GB
- United Kingdom
- Prior art keywords
- purification
- alcohol
- column
- carboxylic acid
- operated under
- 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
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
- C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
Abstract
1302146 Purification of carboxylic acid esters MELLE-BEZONS 30 June 1971 [24 July 1970] 30760/71 Heading C2C A process for the purification of a high boiling carboxylic acid ester produced by catalytic esterification of an alcohol and an acid or anhydride thereof, using an excess of alcohol, neutralization of the reaction mixture, waterwashing of the neutralized product and separation of the excess alcohol, water and impurities using a technique involving steam distillation or stripping carried out in successive distillation columns the last two of which are operated under vacuum, the final column being operated under a higher vacuum than the preceding column which process comprises continuously injecting the vapours of the head products of the final column, together with steam, into the bottom portion of the preceding column. The invention is described with reference to a flow diagram in the purification of di-(2-ethylhexyl)- phthalate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7028288A FR2098915A5 (en) | 1970-07-24 | 1970-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1302146A true GB1302146A (en) | 1973-01-04 |
Family
ID=9059564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3076071A Expired GB1302146A (en) | 1970-07-24 | 1971-06-30 |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS5117521B1 (en) |
| AT (1) | AT305311B (en) |
| BE (1) | BE770450A (en) |
| CA (1) | CA960605A (en) |
| CH (1) | CH540875A (en) |
| CS (1) | CS174821B2 (en) |
| DE (1) | DE2128942B2 (en) |
| ES (1) | ES393411A1 (en) |
| FI (1) | FI52933C (en) |
| FR (1) | FR2098915A5 (en) |
| GB (1) | GB1302146A (en) |
| HU (1) | HU164794B (en) |
| NL (1) | NL7107296A (en) |
| NO (1) | NO135981C (en) |
| PL (1) | PL81830B1 (en) |
| RO (1) | RO63616A (en) |
| SE (1) | SE387627B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311860A (en) * | 2017-06-22 | 2017-11-03 | 江苏飞翔化工股份有限公司 | A kind of preparation method of 1,2 cyclohexane cyclohexanedimethanodibasic dibasic ester |
| CN109678712A (en) * | 2019-01-29 | 2019-04-26 | 安徽力天环保科技股份有限公司 | A kind of dioctyl phthalate preparation facilities and preparation method thereof |
| WO2020173818A1 (en) * | 2019-02-25 | 2020-09-03 | Basf Se | Method for processing benzene polycarboxylic acid esters and use of same to produce cyclohexane polycarboxylic acid esters |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3336601A1 (en) * | 1983-10-07 | 1985-04-25 | Sven-Gunnar Dipl.-Ing. Uetliburg Jacobson | Elongate carding board |
-
1970
- 1970-07-24 FR FR7028288A patent/FR2098915A5/fr not_active Expired
-
1971
- 1971-05-26 NO NO197771A patent/NO135981C/no unknown
- 1971-05-27 NL NL7107296A patent/NL7107296A/xx unknown
- 1971-06-11 DE DE19712128942 patent/DE2128942B2/en active Pending
- 1971-06-18 JP JP4384871A patent/JPS5117521B1/ja active Pending
- 1971-06-30 GB GB3076071A patent/GB1302146A/en not_active Expired
- 1971-07-14 FI FI200671A patent/FI52933C/fi active
- 1971-07-15 CA CA118,361A patent/CA960605A/en not_active Expired
- 1971-07-16 AT AT619271A patent/AT305311B/en not_active IP Right Cessation
- 1971-07-19 ES ES393411A patent/ES393411A1/en not_active Expired
- 1971-07-20 CS CS534571A patent/CS174821B2/cs unknown
- 1971-07-20 CH CH1065971A patent/CH540875A/en not_active IP Right Cessation
- 1971-07-21 RO RO6773571A patent/RO63616A/en unknown
- 1971-07-21 PL PL14958171A patent/PL81830B1/pl unknown
- 1971-07-22 HU HUME001401 patent/HU164794B/hu unknown
- 1971-07-23 BE BE770450A patent/BE770450A/en not_active IP Right Cessation
- 1971-07-23 SE SE951871A patent/SE387627B/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311860A (en) * | 2017-06-22 | 2017-11-03 | 江苏飞翔化工股份有限公司 | A kind of preparation method of 1,2 cyclohexane cyclohexanedimethanodibasic dibasic ester |
| CN109678712A (en) * | 2019-01-29 | 2019-04-26 | 安徽力天环保科技股份有限公司 | A kind of dioctyl phthalate preparation facilities and preparation method thereof |
| WO2020173818A1 (en) * | 2019-02-25 | 2020-09-03 | Basf Se | Method for processing benzene polycarboxylic acid esters and use of same to produce cyclohexane polycarboxylic acid esters |
Also Published As
| Publication number | Publication date |
|---|---|
| NO135981B (en) | 1977-03-28 |
| BE770450A (en) | 1972-01-24 |
| NO135981C (en) | 1977-07-06 |
| FI52933B (en) | 1977-09-30 |
| RO63616A (en) | 1978-08-15 |
| HU164794B (en) | 1974-04-11 |
| ES393411A1 (en) | 1974-09-16 |
| AT305311B (en) | 1973-02-26 |
| PL81830B1 (en) | 1975-10-31 |
| JPS5117521B1 (en) | 1976-06-03 |
| SE387627B (en) | 1976-09-13 |
| CH540875A (en) | 1973-08-31 |
| DE2128942B2 (en) | 1976-11-18 |
| FR2098915A5 (en) | 1972-03-10 |
| FI52933C (en) | 1978-01-10 |
| CA960605A (en) | 1975-01-07 |
| CS174821B2 (en) | 1977-04-29 |
| DE2128942A1 (en) | 1972-11-30 |
| NL7107296A (en) | 1972-01-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |