NL7310939A - - Google Patents
Info
- Publication number
- NL7310939A NL7310939A NL7310939A NL7310939A NL7310939A NL 7310939 A NL7310939 A NL 7310939A NL 7310939 A NL7310939 A NL 7310939A NL 7310939 A NL7310939 A NL 7310939A NL 7310939 A NL7310939 A NL 7310939A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00279854A US3825614A (en) | 1972-08-11 | 1972-08-11 | Recovery of meta-xylene by selective crystallization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7310939A true NL7310939A (en:Method) | 1974-02-13 |
Family
ID=23070657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7310939A NL7310939A (en:Method) | 1972-08-11 | 1973-08-08 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3825614A (en:Method) |
| JP (1) | JPS5238020B2 (en:Method) |
| BE (1) | BE803511A (en:Method) |
| DE (1) | DE2340696C2 (en:Method) |
| FR (1) | FR2195608B1 (en:Method) |
| GB (1) | GB1414215A (en:Method) |
| IT (1) | IT990211B (en:Method) |
| NL (1) | NL7310939A (en:Method) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5329061A (en) * | 1993-06-01 | 1994-07-12 | Uop | Crystallization process for para-xylene recovery using two-stage recovery section |
| FR2728894A1 (fr) * | 1994-12-29 | 1996-07-05 | Inst Francais Du Petrole | Procede de separation de paraxylene comportant au moins deux etages de cristallisation a haute temperature |
| US6376736B1 (en) | 1998-06-12 | 2002-04-23 | Washington Group International, Inc. | Production of high purity meta-xylene |
| CN112679305B (zh) * | 2019-10-18 | 2022-10-11 | 中国石油化工股份有限公司 | 对二甲苯的生产方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB687405A (en) * | 1949-03-21 | 1953-02-11 | Robert Reid Coats | Improvements in and relating to the separation of xylenes by crystallization |
| US2622115A (en) * | 1949-05-23 | 1952-12-16 | Phillips Petroleum Co | Separation of eutectic-forming mixtures by crystallization methods |
| DE881344C (de) * | 1950-06-09 | 1953-08-10 | Phillips Petroleum Co | Verfahren und Vorrichtung zur Abtrennung und Reinigung mindestens einer der Komponenten eines fluessigen, mehrere Komponenten ent-haltenden organischen Gemisches |
| US2810772A (en) * | 1953-12-07 | 1957-10-22 | Exxon Research Engineering Co | Process for production and recovery of paraxylene |
-
1972
- 1972-08-11 US US00279854A patent/US3825614A/en not_active Expired - Lifetime
-
1973
- 1973-08-08 NL NL7310939A patent/NL7310939A/xx not_active Application Discontinuation
- 1973-08-09 IT IT51954/73A patent/IT990211B/it active
- 1973-08-10 BE BE134495A patent/BE803511A/xx not_active IP Right Cessation
- 1973-08-10 GB GB3803273A patent/GB1414215A/en not_active Expired
- 1973-08-10 DE DE2340696A patent/DE2340696C2/de not_active Expired
- 1973-08-10 FR FR7329308A patent/FR2195608B1/fr not_active Expired
- 1973-08-11 JP JP48090448A patent/JPS5238020B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3825614A (en) | 1974-07-23 |
| BE803511A (fr) | 1974-02-11 |
| DE2340696A1 (de) | 1974-03-07 |
| JPS4985029A (en:Method) | 1974-08-15 |
| FR2195608A1 (en:Method) | 1974-03-08 |
| IT990211B (it) | 1975-06-20 |
| JPS5238020B2 (en:Method) | 1977-09-27 |
| DE2340696C2 (de) | 1984-10-11 |
| FR2195608B1 (en:Method) | 1979-02-23 |
| GB1414215A (en) | 1975-11-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| A85 | Still pending on 85-01-01 | ||
| BV | The patent application has lapsed |