Document Type and Number:
Japanese Patent JPH0563489
Kind Code:
B2
Abstract:
Polyglycerols which may contain a small amount of cyclic component are prepared by reaction of glycerols in the heat. The glycerol and/or diglycerol is converted at temperatures of 340 K to 410 K to a mixture comprising glycerol alpha -monochlorohydrin or diglycerol alpha -monochlorohydrin and glycerol or diglycerol using gaseous hydrogen chloride or concentrated hydrochloric acid. The mixture or the glycerol alpha -monochlorohydrin or diglycerol alpha -monochlorohydrin separated off from the mixture is added at temperatures of 320 K to 410 K to alkali metal glycerolate and/or alkali metal diglycerolate. The glycerol and/or diglycerol/polyglycerol mixture is diluted to a 70 to 40 % strength by weight solution by addition of water and desalted at temperatures of 30 to 80 DEG C using a combination of strongly acidic cation and subsequently weakly basic anion exchangers and purified in this manner.
More Like This:
| JP4254170 | Organic electroluminescent device |
| JP5179808 | New dibenzofluorene compound |
Inventors:
GERARUTO YAKOBUSON
HORUSUTO RINKE
UERUNAA JIIMANOFUSUKII
HORUSUTO RINKE
UERUNAA JIIMANOFUSUKII
Application Number:
JP15135288A
Publication Date:
September 10, 1993
Filing Date:
June 21, 1988
Export Citation:
Assignee:
SOLVAY WERKE GMBH
International Classes:
C08G65/34; C07C29/62; C07C31/42; C07C41/00; C07C41/16; C07C43/13; C07C67/00; C07D319/12; C07D321/00; C07D323/00; C08G65/22; C08G65/24; C08G65/28; (IPC1-7): C08G65/34; C07C43/13; C07D319/12; C07D321/00; C07D323/00
Next Patent: MAGNETIC BUBBLE MEMORY READING CIRCUIT