METHOD FOR PRODUCTION OF VINYLCHLORIDE Russian patent published in 2005 - IPC

FIELD: chemical industry, in particular method for production of value monomer such as vinylchloride.

SUBSTANCE: claimed method includes passing of reaction mixture containing dichloroethane vapor trough catalytic layer providing dehydrochlorination of dichloroethane to vinylchloride. Catalyst has active centers having in IR-spectra of adsorbed ammonia absorption band with wave numbers in region of ν = 1410-1440 cm^-1, and contains one platinum group metal as active component, and glass-fiber carrier. Carrier has in NMR²⁹Si-specrum lines with chemical shifts of -100±3 ppm (Q³-line) and -110±3 ppm (Q⁴-line) in integral intensity ratio Q³/Q⁴ from 0.7 to 1.2; in IR-specrum it has absorption band of hydroxyls with wave number of ν = 3620-3650 cm^-1 and half-width of 65-75 cm^-1, and has density, measured by BET-method using argon thermal desorption, S_Ar = 0.5-30 m²/g, and specific surface, measured by alkali titration, S_Na = 10-250 m²/g in ratio of S_Ar/S_Na = 5-30.

EFFECT: method with high conversion ratio and selectivity.

3 cl, 2 ex