A catalyst comprising chromia and at least one additional metal or compound thereof and wherein the catalyst has a total pore volume of greater than 0.3 cm.sup.3/g and the mean pore diameter is greater than or equal to 90 ?, wherein the total pore volume is measured by N2 adsorption porosimetry and the mean pore diameter is measured by N.sub.2 BET adsorption porosimetry, and wherein the at least one additional metal is selected from Li, Na, K, Ca, Mg, Cs, Sc, Al, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Rh, Ir, Ni, Pd, In, Pt, Cu, Ag, Au, Zn, La, Ce and mixtures thereof.

A catalyst comprising chromia and at least one additional metal or compound thereof and wherein the catalyst has a total pore volume of greater than 0.3 cm.sup.3/g and the mean pore diameter is greater than or equal to 90 ?, wherein the total pore volume is measured by N2 adsorption porosimetry and the mean pore diameter is measured by N.sub.2 BET adsorption porosimetry, and wherein the at least one additional metal is selected from Li, Na, K, Ca, Mg, Cs, Sc, Al, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Co, Rh, Ir, Ni, Pd, In, Pt, Cu, Ag, Au, Zn, La, Ce and mixtures thereof.

A process for the production of vinyl chloride comprises the step of passing a feed stream comprising ethylene dichloride (EDC) over a catalyst system comprising a dehydrochlorination catalyst and a hydrochlorination catalyst at a temperature, which may be in the range 150-350 C., sufficient to effect dehydrochlorination of the ethylene dichloride to produce vinyl chloride.

A process for the production of vinyl chloride comprises the step of passing a feed stream comprising ethylene dichloride (EDC) over a catalyst system comprising a dehydrochlorination catalyst and a hydrochlorination catalyst at a temperature, which may be in the range 150-350 C., sufficient to effect dehydrochlorination of the ethylene dichloride to produce vinyl chloride.

A process for the production of vinyl chloride comprises the step of passing a feed stream comprising ethylene dichloride (EDC) over a catalyst system comprising a dehydrochlorination catalyst and a hydrochlorination catalyst at a temperature, which may be in the range 150-350 C., sufficient to effect dehydrochlorination of the ethylene dichloride to produce vinyl chloride.

A method for extraction of desirable comounds from cannabis provides for high-cannabinoid full spectrum (HCFSE) extractions, using CO.sub.2 at low temperature to extract the compounds in an extraction vessel. The CO.sub.2 with extracted compounds is transferred to a heated vessel which converts the CO.sub.2 to a gas, allowing the desired compounds to drop out and be removed.

A method for extraction of desirable comounds from cannabis provides for high-cannabinoid full spectrum (HCFSE) extractions, using CO.sub.2 at low temperature to extract the compounds in an extraction vessel. The CO.sub.2 with extracted compounds is transferred to a heated vessel which converts the CO.sub.2 to a gas, allowing the desired compounds to drop out and be removed.

A method for extraction of desirable compounds from cannabis provides for high-cannabinoid full spectrum (HCFSE) extractions, using CO.sub.2 at low temperature to extract the compounds in an extraction vessel. The CO.sub.2 with extracted compounds is transferred to a heated vessel which converts the CO.sub.2 to a gas, allowing the desired compounds to drop out and be removed.

A method for extraction of desirable compounds from cannabis provides for high-cannabinoid full spectrum (HCFSE) extractions, using CO.sub.2 at low temperature to extract the compounds in an extraction vessel. The CO.sub.2 with extracted compounds is transferred to a heated vessel which converts the CO.sub.2 to a gas, allowing the desired compounds to drop out and be removed.

A method hydrofluorinates an olefin of the formula: RCX=CYZ to produce a hydrofluoroalkane of formula RCXFCHYZ or RCXHCFYZ, where X, Y, and Z are independently the same or different and are selected from the group consisting of H, F, Cl, Br, and C.sub.1-C.sub.6 alkyl which is partially or fully substituted with chloro or fluoro or bromo; and R is a C.sub.1-C.sub.6 alkyl which is unsubstituted or substituted with chloro or fluoro or bromo. The method includes reacting the olefin with HF in the vapor phase, in the presence of SbF.sub.5, at a temperature ranging from about ?30? C. to about 65? C. and compositions formed by the process.