A process of making a chlorinated hydrocarbon through a thermal dehydrochlorination step in which an unsaturated compound represented by the following general formula (2) is obtained by thermally decomposing a saturated compound represented by the following general formula (1).
CCl
3
—CCl
2-m
H
m
—CCl
3-n
H
n
(1)
CCl
2
═CCl
2-m
H
m-1
—CCl
3-n
H
n
(2)
(in the above formulas, m is 1 or 2, and n is an integer of 0 to 3.)
Free-radical addition to olefins. Part VII. Addition of trichloromethyl radicals to chloro-olefins
作者:D. P. Johari、H. W. Sidebottom、J. M. Tedder、J. C. Walton
DOI:10.1039/j29710000095
日期:——
BrCXCX2 respectively, where CXClCX2 represents the original chloro-ethylene. The rate of trichloromethyl radicaladdition to a chlorine-substituted site is slower than the rate of addition at CF2 and much slower than addition to CH2. Arrheniusparameters for the addition of CCl3· to the CH2 end of vinyl chloride have been measured:
PROCESS FOR THE PRODUCTION OF CHLORINATED AND/OR FLUORINATED PROPENES
申请人:Tirtowidjojo Max M.
公开号:US20110083955A1
公开(公告)日:2011-04-14
The present invention provides one-step processes for the production of chlorinated and/or fluorinated propenes. The processes provide good product yield with low, e.g., less than about 20%, or even less than 10%, concentrations of residues/by-products. Advantageously, the processes may be conducted at low temperatures than 500° C. so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts or initiators may provide additional enhancements to conversion rates and selectivity, as may adjustments to the molar ratio of the reactants.