GB916774A - Improvements in or relating to the preparation of a mixture of glycerol and glycols - Google Patents
Improvements in or relating to the preparation of a mixture of glycerol and glycolsInfo
- Publication number
- GB916774A GB916774A GB2261259A GB2261259A GB916774A GB 916774 A GB916774 A GB 916774A GB 2261259 A GB2261259 A GB 2261259A GB 2261259 A GB2261259 A GB 2261259A GB 916774 A GB916774 A GB 916774A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glycerol
- nickel
- glycols
- mixture
- preparation
- Prior art date
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A mixture of glycerol and glycols with less than 6 carbon atoms in the chain, is prepared in a one-stage process in which an aqueous solution of sucrose is catalytically hydrogenated at elevated temperature and pressure at a pH of from 11 to 12.5 at least at the beginning of the hydrogenation. A pH of 12 is preferred and is adjusted by alkali or alkaline earth metal hydroxide. The process may be continuous at between 180 and 250 DEG C. and 50 to 250 atmospheres pressure. Catalysts such as nickel or kieselguhr and aluminium oxide, Raney nickel, or nickel-magnesium oxalate and during the continuous process hydrogen saturated with steam may be used and the reaction product is concentrated from 10 to 40% weight by volume. Examples describe the preparation of mixtures containing pentitol, erythritol, glycerol, ethylene and propylene glycol, butanediol.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH6155058A CH373025A (en) | 1958-07-09 | 1958-07-09 | Process for the production of glycerine and glycols |
CH7284259A CH423738A (en) | 1958-07-09 | 1959-05-02 | Process for the production of glycerine and glycols |
Publications (1)
Publication Number | Publication Date |
---|---|
GB916774A true GB916774A (en) | 1963-01-30 |
Family
ID=25737721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2261259A Expired GB916774A (en) | 1958-07-09 | 1959-07-01 | Improvements in or relating to the preparation of a mixture of glycerol and glycols |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH423738A (en) |
ES (1) | ES250333A1 (en) |
GB (1) | GB916774A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5490394A (en) * | 1977-12-16 | 1979-07-18 | Bayer Ag | Preparation of low molecular weight polyhydroxyl compound |
EP0809444A1 (en) * | 1993-12-29 | 1997-12-03 | Wm. Wrigley Jr. Company | Liquid sorbitol/mannitol/glycerin blend and compositions containing same |
-
1959
- 1959-05-02 CH CH7284259A patent/CH423738A/en unknown
- 1959-06-25 ES ES0250333A patent/ES250333A1/en not_active Expired
- 1959-07-01 GB GB2261259A patent/GB916774A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5490394A (en) * | 1977-12-16 | 1979-07-18 | Bayer Ag | Preparation of low molecular weight polyhydroxyl compound |
JPS6259686B2 (en) * | 1977-12-16 | 1987-12-12 | Bayer Ag | |
EP0809444A1 (en) * | 1993-12-29 | 1997-12-03 | Wm. Wrigley Jr. Company | Liquid sorbitol/mannitol/glycerin blend and compositions containing same |
EP0809444A4 (en) * | 1993-12-29 | 1998-04-15 | Wrigley W M Jun Co | Liquid sorbitol/mannitol/glycerin blend and compositions containing same |
Also Published As
Publication number | Publication date |
---|---|
ES250333A1 (en) | 1959-10-16 |
CH423738A (en) | 1966-11-15 |
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