THE METAL OXIDE CATALYST FOR ETHERIFICATION REACTION, THE METHOD THEREOF AND THE PROCESS FOR THE PRODUCTION OF LINEAR POLYGLYCEROL USING IT
摘要
PURPOSE: A metal oxide catalyst for etherification reaction is provided to obtain high content of linear polyglycerol using basic binary based metal oxide catalyst for the etherification reaction and to be used for manufacturing polyglyerol suitable for cosmetics and food additives. CONSTITUTION: A binary based metal oxide catalyst for etherification reaction of glycerol is marked as a chemical formula 1. [Chemical formula 1] (CaO)_a · (Ca_12Al_14O_33)_(100-a). In the chemical formula 1, a is weight ratio of CaO to catalyst 100.0, a is in a range of 30-70. A method for manufacturing the metal oxide catalyst comprises the following steps: creating a precipitate of a mixed metal hydroxide by simultaneously adding solution including calcium salt and aluminum salt and alkaline precipitation agent to solution of sodium chloride; mixing the precipitate at 40-80°C; obtaining hydrocalumite metal hydroxide powder through separation and washing of the precipitate; and plasticizing the metal hydroxide powder at 400-800°C.
申请公布号
KR20100041000(A)
申请公布日期
2010.04.22
申请号
KR20080099955
申请日期
2008.10.13
申请人
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY;KCI LIMITED
发明人
HAN, YOO HAN;KIM, HYUNG ROK;HAN, IN SUN;CHOI, HYUN OUNG;KIM, HYUN SIC;AN, SO YOUNG;YOUN, YOUNG HO