FR2323668B1 - - Google Patents
Info
- Publication number
- FR2323668B1 FR2323668B1 FR7627238A FR7627238A FR2323668B1 FR 2323668 B1 FR2323668 B1 FR 2323668B1 FR 7627238 A FR7627238 A FR 7627238A FR 7627238 A FR7627238 A FR 7627238A FR 2323668 B1 FR2323668 B1 FR 2323668B1
- Authority
- FR
- France
- 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
- 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
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 |
|---|---|---|---|
| US05/612,824 US4045294A (en) | 1975-09-12 | 1975-09-12 | Process for the recovery of alkylene glycols |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2323668A1 FR2323668A1 (fr) | 1977-04-08 |
| FR2323668B1 true FR2323668B1 (US06486227-20021126-C00005.png) | 1980-06-06 |
Family
ID=24454791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7627238A Granted FR2323668A1 (fr) | 1975-09-12 | 1976-09-10 | Procede d'extraction d'alkylene-glycols |
Country Status (8)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2012078728A1 (en) | 2010-12-10 | 2012-06-14 | Dow Global Technologies Llc | Apparatus and process for using olefin as an azeotropic entrainer for isolating 1,3-dichloro-2-propanol from a 2,2'-oxybis (1-chloropropane) waste stream |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3074962A (en) * | 1958-04-22 | 1963-01-22 | Union Carbide Corp | Separation of ethylene carbonate from admixture with ethylene glycol |
| US3066116A (en) * | 1959-05-26 | 1962-11-27 | American Cyanamid Co | Polyesters using molecular sieve to remove ethylene glycol |
| GB1142057A (en) * | 1966-11-09 | 1969-02-05 | Bp Chem Int Ltd | Separation of formic acid from mixtures with other acids |
| US3809724A (en) * | 1971-09-08 | 1974-05-07 | Halcon International Inc | Preparation and recovery of alkylene glycols |
| JPS581502B2 (ja) * | 1975-03-22 | 1983-01-11 | 株式会社日立製作所 | テレビジヨンサツゾウソウチ |
-
1975
- 1975-09-12 US US05/612,824 patent/US4045294A/en not_active Expired - Lifetime
-
1976
- 1976-09-01 NL NL7609709A patent/NL7609709A/xx not_active Application Discontinuation
- 1976-09-10 BE BE170508A patent/BE846057A/xx unknown
- 1976-09-10 FR FR7627238A patent/FR2323668A1/fr active Granted
- 1976-09-10 IT IT51222/76A patent/IT1089820B/it active
- 1976-09-13 JP JP51109719A patent/JPS5236612A/ja active Pending
- 1976-09-13 DE DE19762641133 patent/DE2641133A1/de not_active Withdrawn
- 1976-09-13 GB GB37896/76A patent/GB1554649A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1554649A (en) | 1979-10-24 |
| NL7609709A (nl) | 1977-03-15 |
| IT1089820B (it) | 1985-06-18 |
| FR2323668A1 (fr) | 1977-04-08 |
| US4045294A (en) | 1977-08-30 |
| DE2641133A1 (de) | 1977-03-24 |
| JPS5236612A (en) | 1977-03-22 |
| BE846057A (fr) | 1977-03-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| ST | Notification of lapse |