BR8205685A - Processo para clivagem seletiva de polialquilenoglicol - Google Patents
Processo para clivagem seletiva de polialquilenoglicolInfo
- Publication number
- BR8205685A BR8205685A BR8205685A BR8205685A BR8205685A BR 8205685 A BR8205685 A BR 8205685A BR 8205685 A BR8205685 A BR 8205685A BR 8205685 A BR8205685 A BR 8205685A BR 8205685 A BR8205685 A BR 8205685A
- Authority
- BR
- Brazil
- Prior art keywords
- polyalkylene glycol
- selective clipping
- clipping
- selective
- polyalkylene
- Prior art date
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
- C07C29/09—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis
- C07C29/10—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 ethers, including cyclic ethers, e.g. oxiranes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C27/00—Processes involving the simultaneous production of more than one class of oxygen-containing compounds
-
- 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
-
- 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
- C07C29/60—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by elimination of -OH groups, e.g. by dehydration
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/26—Preparation of ethers by reactions not forming ether-oxygen bonds by introduction of hydroxy or O-metal groups
-
- 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)
- Chemical Kinetics & Catalysis (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 |
---|---|---|---|
US30722581A | 1981-09-30 | 1981-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8205685A true BR8205685A (pt) | 1983-08-30 |
Family
ID=23188798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8205685A BR8205685A (pt) | 1981-09-30 | 1982-09-29 | Processo para clivagem seletiva de polialquilenoglicol |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0075952A1 (pt) |
JP (1) | JPS5874626A (pt) |
KR (1) | KR840001540A (pt) |
AU (1) | AU8878182A (pt) |
BR (1) | BR8205685A (pt) |
CA (1) | CA1219285A (pt) |
DD (1) | DD203316A5 (pt) |
ES (1) | ES8308821A1 (pt) |
ZA (1) | ZA827067B (pt) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1256800B (it) * | 1992-01-31 | 1995-12-15 | Novamont Spa | Procedimento per la produzione di polioli inferiori e nuovo catalizzatore a base di rutenio utilizzato in tale procedimento. |
US5912364A (en) * | 1996-10-21 | 1999-06-15 | Eastman Chemical Company | Process for the preparation of 3-methyltetrahydrofuran |
US5856531A (en) * | 1996-10-21 | 1999-01-05 | Eastman Chemical Company | Preparation of 3-methytetra-hydrofuran from 2,3-dihydrofuran |
DE102004051267B3 (de) * | 2004-10-21 | 2006-05-24 | Clariant Gmbh | Verfahren zur kontinuierlichen Herstellung von Alkylenglykoldiethern |
DE102005044177A1 (de) * | 2005-09-15 | 2007-04-05 | Uhde Gmbh | Verfahren und Vorrichtung zur Nutzung der bei der Reinigung von 1,2-Dichlorethan anfallenden Kondensationswärme |
CN101255098B (zh) * | 2008-04-11 | 2010-04-14 | 清华大学 | 一种从丙三醇直接加氢制备丙二醇的方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE417926C (de) * | 1923-11-26 | 1925-08-22 | Merck Ag E | Verfahren zur Darstellung von Alkoholen aus AEthern |
DE898894C (de) * | 1941-12-05 | 1953-12-07 | Basf Ag | Verfahren zur Gewinnung niedrigermolekularer Polyaethylenglykole oder einfacher AEthylenglykole aus hoehermolekularen Polyaethylenglykolen |
DE2900279A1 (de) * | 1979-01-05 | 1980-07-24 | Hoechst Ag | Verfahren zur herstellung von methylethern |
-
1982
- 1982-09-24 CA CA000412116A patent/CA1219285A/en not_active Expired
- 1982-09-27 ZA ZA827067A patent/ZA827067B/xx unknown
- 1982-09-28 AU AU88781/82A patent/AU8878182A/en not_active Abandoned
- 1982-09-28 ES ES516001A patent/ES8308821A1/es not_active Expired
- 1982-09-29 KR KR1019820004404A patent/KR840001540A/ko unknown
- 1982-09-29 BR BR8205685A patent/BR8205685A/pt unknown
- 1982-09-29 JP JP57168707A patent/JPS5874626A/ja active Pending
- 1982-09-29 EP EP82109021A patent/EP0075952A1/en not_active Ceased
- 1982-09-30 DD DD82243686A patent/DD203316A5/de unknown
Also Published As
Publication number | Publication date |
---|---|
CA1219285A (en) | 1987-03-17 |
KR840001540A (ko) | 1984-05-07 |
ZA827067B (en) | 1983-07-27 |
ES516001A0 (es) | 1983-10-01 |
ES8308821A1 (es) | 1983-10-01 |
DD203316A5 (de) | 1983-10-19 |
EP0075952A1 (en) | 1983-04-06 |
JPS5874626A (ja) | 1983-05-06 |
AU8878182A (en) | 1983-04-14 |
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