ES250333A1 - 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
- ES250333A1 ES250333A1 ES0250333A ES250333A ES250333A1 ES 250333 A1 ES250333 A1 ES 250333A1 ES 0250333 A ES0250333 A ES 0250333A ES 250333 A ES250333 A ES 250333A ES 250333 A1 ES250333 A1 ES 250333A1
- Authority
- ES
- Spain
- 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
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 |
|---|---|
| ES250333A1 true ES250333A1 (en) | 1959-10-16 |
Family
ID=25737721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0250333A Expired ES250333A1 (en) | 1958-07-09 | 1959-06-25 | 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2756270A1 (en) * | 1977-12-16 | 1979-06-21 | Bayer Ag | METHOD FOR PRODUCING LOW MOLECULAR POLYHYDROXYL COMPOUNDS |
| CA2178733C (en) * | 1993-12-29 | 1999-02-16 | Pamela M. Mazurek | 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
Also Published As
| Publication number | Publication date |
|---|---|
| CH423738A (en) | 1966-11-15 |
| GB916774A (en) | 1963-01-30 |
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