| 摘要 |
1318791 Vinyl bromide DOW CHEMICAL CO 18 Aug 1970 [22 Aug 1969] 39764/70 Heading C2C Vinyl bromide is produced by contacting, in the presence of a contact catalyst, acetylene and a mixture of vinyl bromide, hydrogen bromide and higher brominated products produced by the thermal cracking of ethylene dibromide, at 50-250‹ C. wherein the molar ratio of acetylene to hydrogen bromide is greater than 0À5 : 1. |
