FIELD: main synthesis industry. SUBSTANCE: method involves preparing of chloroprene as semiproduct by dehydrochlorination of 3,4-dichlorobutene-1 in the presence of lime and polyol such as glycol selected from (poly)ethylene glycol and (poly)propylene glycol, preferably ethylene glycol at 70-150 C. Lime is used in amount of at least 0.5 M of calcium per mole of dichlorobutene. The method makes it possible to simplify manufacture of chloroprene. EFFECT: more efficient preparation method. 5 cl, 8 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING CHLOROPRENE (VARIANTS) | 1994 |
|
RU2121474C1 |
| PROCESS FOR PREPARING 1-CHLORO-1,3-BUTADIENE | 1994 |
|
RU2127247C1 |
| METHOD OF PREPARING (CO)POLYCHLOROPRENE LATEXES, ADHESIVE, ADDITIVE, (CO)POLYCHLOROPRENE LATEX | 1996 |
|
RU2161162C2 |
| METHOD OF SYNTHESIS OF (CO)POLYMERIC RUBBER OF POLYCHLOROPROPENE TYPE, RUBBER, COPOLYMER | 1995 |
|
RU2120949C1 |
| METHOD OF β-CHLOROPRENE SYNTHESIS | 1991 |
|
RU2017710C1 |
| METHOD OF SYNTHESIS OF CHLOROPRENE | 1993 |
|
RU2119904C1 |
| METHOD FOR PRODUCTION OF CHLORINATED DIENE COPOLYMERS | 1996 |
|
RU2137786C1 |
| PROCESS FOR RECOVERY OF 1,4-DICHLOROBUTENE-2 | 1996 |
|
RU2125978C1 |
| METHOD FOR WET SLAKING OF CALCIUM AND MAGNESIUM OXIDES FROM CALCOMAGNESIAN COMPOUNDS | 2014 |
|
RU2654010C2 |
| METHOD OF CHLOROPRENE PRODUCTION | 0 |
|
SU775101A1 |
