FIELD: chemistry.
SUBSTANCE: present invention relates to a method of producing 1,2-propanediol, which is used as a component of braking fluids and hydraulic fluids, lubricant materials and antifreeze, in cosmetic preparations, in food industry and as solvents for fats, oils, resins and paints. The method involves reaction of glycerine, having purity of at least 95 wt %, with hydrogen at hydrogen pressure from 20 to 100 bars and temperature from 180 to 240°C in the presence of a catalyst which contains from 10 to 50 wt % copper oxide and from 50 to 90 wt % zinc oxide, and which is activated before the reaction in a stream of hydrogen at temperature from 170 to 240°C in an autoclave.
EFFECT: method enables to obtain an end product with high selectivity and high output in one cycle per unit time.
8 cl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING 1,2-PROPANE DIOL VIA HYDROGENOLYSIS OF GLYCERINE | 2008 |
|
RU2436761C2 |
| METHOD FOR PRODUCING GLYCEROL 1,2-PROPYLENE GLYCOL | 2017 |
|
RU2663419C1 |
| METHOD OF PRODUCING ε-CAPROLACTONE AND 1,6-HEXANEDIOL | 2011 |
|
RU2571082C2 |
| PRODUCING ETHANOL FROM ACETIC ACID USING COBALT CATALYST | 2009 |
|
RU2491269C2 |
| METHODS OF CONVERTING GLYCERINE TO AMINO ALCOHOLS | 2007 |
|
RU2426724C2 |
| METHOD OF PRODUCING OLEFINS | 2009 |
|
RU2469998C1 |
| CATALYST FOR HYDROLYSIS CONVERSION OF GLYCERINE INTO SIMPLE ALCOHOLS, A METHOD FOR PREPARING IT AND A METHOD FOR HYDROGENATION CONVERSION OF GLYCEROL INTO SIMPLE ALCOHOLS USING SAID CATALYST | 2018 |
|
RU2691068C1 |
| METHOD OF REGENERATING CATALYST USED IN DEHYDRATION OF GLYCEROL | 2007 |
|
RU2484895C2 |
| AMINATION METHOD | 1998 |
|
RU2215734C2 |
| METHOD OF PRODUCTION OF 1.3-DIOL | 2001 |
|
RU2261242C2 |
