IT1193749B - Metodo perfezionato per la produzione di composti poliidrici - Google Patents
Metodo perfezionato per la produzione di composti poliidriciInfo
- Publication number
- IT1193749B IT1193749B IT51895/78A IT5189578A IT1193749B IT 1193749 B IT1193749 B IT 1193749B IT 51895/78 A IT51895/78 A IT 51895/78A IT 5189578 A IT5189578 A IT 5189578A IT 1193749 B IT1193749 B IT 1193749B
- Authority
- IT
- Italy
- Prior art keywords
- distillation
- stage
- compounds
- polyhydric
- acidic
- Prior art date
Links
- 150000001875 compounds Chemical class 0.000 title abstract 5
- 238000004821 distillation Methods 0.000 abstract 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 abstract 3
- 230000002378 acidificating effect Effects 0.000 abstract 3
- 230000007062 hydrolysis Effects 0.000 abstract 2
- 238000006460 hydrolysis reaction Methods 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 abstract 1
- 239000003957 anion exchange resin Substances 0.000 abstract 1
- -1 carboxylate ester Chemical class 0.000 abstract 1
- 150000001735 carboxylic acids Chemical class 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000007701 flash-distillation Methods 0.000 abstract 1
- 230000003301 hydrolyzing effect Effects 0.000 abstract 1
- 239000003456 ion exchange resin Substances 0.000 abstract 1
- 229920003303 ion-exchange polymer Polymers 0.000 abstract 1
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
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/09—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis
- C07C29/095—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis of esters of organic acids
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85102677A | 1977-11-14 | 1977-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT7851895A0 IT7851895A0 (it) | 1978-11-14 |
| IT1193749B true IT1193749B (it) | 1988-08-24 |
Family
ID=25309759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT51895/78A IT1193749B (it) | 1977-11-14 | 1978-11-14 | Metodo perfezionato per la produzione di composti poliidrici |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5479211A (it) |
| BE (1) | BE871960A (it) |
| DE (1) | DE2849248C3 (it) |
| FR (1) | FR2408568A1 (it) |
| GB (1) | GB2007659B (it) |
| IT (1) | IT1193749B (it) |
| NL (1) | NL7810869A (it) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4187153A (en) * | 1977-11-14 | 1980-02-05 | Halcon Research & Development Corporation | Production of alkylene glycols |
| AT377612B (de) * | 1981-06-30 | 1985-04-10 | Max Planck Gesellschaft | Anordnung zur optischen messung von stoffkonzentrationen |
| US7462748B2 (en) | 2006-09-07 | 2008-12-09 | Shell Oil Company | Process for the preparation of alkylene glycol |
| US7465840B2 (en) | 2006-09-07 | 2008-12-16 | Shell Oil Company | Process for the preparation of alkylene glycol |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB511130A (en) * | 1938-02-19 | 1939-08-14 | Bataafsche Petroleum | A process for the recovery of organic oxy-compounds from their aqueous solutions containing one or more salts |
| GB595407A (en) * | 1943-08-17 | 1947-12-04 | American Cyanamid Co | Production of pure glycol solutions |
| US3859368A (en) * | 1971-09-08 | 1975-01-07 | Halcon International Inc | Method of producing polyhydric compounds such as ethylene glycol by disproportionation of its monoacetate |
| JPS5219611A (en) * | 1975-08-07 | 1977-02-15 | Mitsubishi Chem Ind Ltd | Process for recovery of butanediol and/ or butenediol |
| JPS5265209A (en) * | 1975-11-25 | 1977-05-30 | Mitsubishi Chem Ind Ltd | Manufacture of diols |
| JPS52133912A (en) * | 1976-05-01 | 1977-11-09 | Mitsubishi Chem Ind Ltd | Preparation of butanediol |
-
1978
- 1978-11-01 NL NL7810869A patent/NL7810869A/ not_active Application Discontinuation
- 1978-11-13 BE BE191683A patent/BE871960A/xx unknown
- 1978-11-13 FR FR7832007A patent/FR2408568A1/fr not_active Withdrawn
- 1978-11-14 JP JP14039678A patent/JPS5479211A/ja active Pending
- 1978-11-14 IT IT51895/78A patent/IT1193749B/it active
- 1978-11-14 DE DE2849248A patent/DE2849248C3/de not_active Expired
- 1978-11-14 GB GB7844390A patent/GB2007659B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2408568A1 (fr) | 1979-06-08 |
| NL7810869A (nl) | 1979-05-16 |
| IT7851895A0 (it) | 1978-11-14 |
| GB2007659B (en) | 1982-05-19 |
| DE2849248B2 (de) | 1982-04-22 |
| DE2849248A1 (de) | 1979-05-17 |
| GB2007659A (en) | 1979-05-23 |
| BE871960A (fr) | 1979-05-14 |
| DE2849248C3 (de) | 1982-11-25 |
| JPS5479211A (en) | 1979-06-25 |
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