FIELD: chemistry.
SUBSTANCE: invention relates to method of obtaining propylene oxide, bulk product, used for production of polyurethanes, glycols, solvents, cosmetic preparations and medications. Method includes the following stages: a) interaction of propylene glycol with hydrogen chloride at higher temperature in presence of carboxylic acids with formation of propylene chlorohydrins; b) dehydrochlorination of propylene chlorohydrins with alkali with formation of propylene oxide. In accordance with invention hydrochlorination of propylene glycol is carried out with simultaneous distillation of water, containing reaction products, and output of reaction products from hydrochlorination reactor by side distillation.
EFFECT: increased rate of formation of propylene chlorohydrins and propylene oxide productivity.
1 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING GLYCEROL DICHLOROHYDRINS | 2012 |
|
RU2499788C1 |
| METHOD OF PRODUCING DICHLOROPROPANOLS FROM GLYCERINE | 2004 |
|
RU2356878C2 |
| METHOD OF REUSING ORGANOARSENIC SUBSTANCES FROM STATE MORTUARY CONTAINING 10-CHLORO-5,10-DIHYDROPHENARSINE | 1997 |
|
RU2129455C1 |
| METHOD OF PRODUCING 3,3-BIS(CHLOROMETHYL)OXETANE | 2014 |
|
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| CATALYTIC METHOD OF PROCESSING METHANE | 2008 |
|
RU2394805C2 |
| PROCESS FOR PREPARING MONOMERIC SUBSTRATE OF SEALING MATERIALS | 1992 |
|
RU2043333C1 |
| METHOD FOR PREPARING TERTIARY-BUTYL CHLORIDE | 2004 |
|
RU2280636C1 |
| METHOD OF PRODUCING GRAPHITE-POLYMER | 0 |
|
SU789531A1 |
| METHOD OF PRODUCTION 0F TRICHLOROSILANE | 2004 |
|
RU2280010C1 |
| METHOD OF -CHLOROPROPIONIC ACID SYNTHESIS | 0 |
|
SU1816756A1 |
