NL7211925A - - Google Patents
Info
- Publication number
- NL7211925A NL7211925A NL7211925A NL7211925A NL7211925A NL 7211925 A NL7211925 A NL 7211925A NL 7211925 A NL7211925 A NL 7211925A NL 7211925 A NL7211925 A NL 7211925A NL 7211925 A NL7211925 A NL 7211925A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
- C07C29/82—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation by azeotropic distillation
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/06—Reactor-distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00178587A US3809724A (en) | 1971-09-08 | 1971-09-08 | Preparation and recovery of alkylene glycols |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7211925A true NL7211925A (de) | 1973-03-12 |
Family
ID=22653133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7211925A NL7211925A (de) | 1971-09-08 | 1972-09-01 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3809724A (de) |
| JP (1) | JPS5217004B2 (de) |
| BE (1) | BE788398A (de) |
| DE (1) | DE2244229C3 (de) |
| FR (1) | FR2152707B1 (de) |
| GB (1) | GB1400782A (de) |
| IT (1) | IT965251B (de) |
| NL (1) | NL7211925A (de) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4121978A (en) * | 1973-01-30 | 1978-10-24 | Rhone-Progil | Method of separating chlorinated aliphatic hydrocarbons from mixtures thereof, by extractive distillation |
| JPS5347086B2 (de) * | 1973-10-12 | 1978-12-19 | ||
| JPS5223120A (en) * | 1975-08-15 | 1977-02-21 | Kenichi Yamashita | Automatic feeder of surface pallet for concrete mold |
| US4057471A (en) * | 1975-09-12 | 1977-11-08 | Halcon International, Inc. | Recovery of alkylene glycols |
| US4021311A (en) * | 1975-09-12 | 1977-05-03 | Halcon International, Inc. | Recovery of alkylene glycols by azeotropic distillation with 1,2,3-trimethyl benzene |
| US4045294A (en) * | 1975-09-12 | 1977-08-30 | Halcon International, Inc. | Process for the recovery of alkylene glycols |
| US4028195A (en) * | 1975-09-12 | 1977-06-07 | Halcon International, Inc. | Recovery of alkylene glycols by distillation with aqueous organic acid |
| CA1088021A (en) * | 1977-01-18 | 1980-10-21 | Robert J. Coker | Modified process for resin manufacturing using a continuous separate distillation column |
| US4151048A (en) * | 1977-06-06 | 1979-04-24 | Halcon Research And Development Corporation | Recovery of alkylene glycols by azeotropic distillation |
| US4187153A (en) * | 1977-11-14 | 1980-02-05 | Halcon Research & Development Corporation | Production of alkylene glycols |
| JPS5564535A (en) * | 1978-11-10 | 1980-05-15 | Nisso Yuka Kogyo Kk | Separation of mixture of ethylene glycol and ethylene carbonate |
| US4276126A (en) * | 1979-11-30 | 1981-06-30 | National Distillers And Chemical Corporation | Separation of ethylene glycol from N-methylpyrrolidone |
| US4519875A (en) * | 1984-05-09 | 1985-05-28 | The Halcon Sd Group, Inc. | Purification of ethylene glycol derived from ethylene carbonate |
| US4830712A (en) * | 1987-09-29 | 1989-05-16 | Union Carbide Corporation | Process for refining ethylene glycol |
| US4975158A (en) * | 1989-12-27 | 1990-12-04 | Lloyd Bert | Recovery of glycerine from polyols by azeotropic distillation |
| US4935102A (en) * | 1989-12-27 | 1990-06-19 | Lloyd Berg | Separation of 2,3-butanediol from propylene glycol by azeotropic distillation |
| US4980033A (en) * | 1990-09-04 | 1990-12-25 | Lloyd Berg | Recovery of triethylene glycol from triols by azeotropic distillation |
| EP0679624B1 (de) | 1994-04-18 | 1998-12-09 | BASF Aktiengesellschaft | Rückgewinnung von Glykolen aus Glycol-enthaltenden technischen Flüssigkeiten |
| US5425853A (en) * | 1994-06-30 | 1995-06-20 | Lloyd Berg | Separation of propylene glycol from ethylene glycol by azeotropic distillation |
| WO2002098829A1 (en) * | 2001-06-07 | 2002-12-12 | Shell Internationale Research Maatschappij B.V. | Separation method |
| WO2005032687A2 (en) * | 2003-09-30 | 2005-04-14 | Clark Arthur F | Method for separating volatile components by dilutive distillation |
| US9145345B2 (en) * | 2012-08-30 | 2015-09-29 | Glyeco, Inc. | Method and apparatus for processing glycol |
| CN110878007B (zh) * | 2018-09-05 | 2023-04-28 | 长春美禾科技发展有限公司 | 一种非石油基乙二醇的精制方法 |
| CN110963891B (zh) * | 2018-09-29 | 2024-02-23 | 长春美禾科技发展有限公司 | 一种生物基丙二醇的精制方法 |
| CN115141081B (zh) * | 2022-07-18 | 2024-01-23 | 常州大学 | 基于共沸精馏方式分离共沸物乙二醇和乙二醇二乙酸酯的方法 |
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1971
- 1971-09-08 US US00178587A patent/US3809724A/en not_active Expired - Lifetime
-
1972
- 1972-09-01 NL NL7211925A patent/NL7211925A/xx unknown
- 1972-09-05 BE BE788398A patent/BE788398A/xx unknown
- 1972-09-07 FR FR7231682A patent/FR2152707B1/fr not_active Expired
- 1972-09-07 IT IT52602/72A patent/IT965251B/it active
- 1972-09-08 JP JP47090292A patent/JPS5217004B2/ja not_active Expired
- 1972-09-08 GB GB4183272A patent/GB1400782A/en not_active Expired
- 1972-09-08 DE DE2244229A patent/DE2244229C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2244229C3 (de) | 1979-06-21 |
| IT965251B (it) | 1974-01-31 |
| JPS4834810A (de) | 1973-05-22 |
| DE2244229A1 (de) | 1973-03-15 |
| JPS5217004B2 (de) | 1977-05-12 |
| DE2244229B2 (de) | 1978-10-19 |
| US3809724A (en) | 1974-05-07 |
| BE788398A (fr) | 1973-03-05 |
| GB1400782A (en) | 1975-07-23 |
| FR2152707A1 (de) | 1973-04-27 |
| FR2152707B1 (de) | 1977-12-30 |