| 摘要 |
A catalyst comprises a complex of gold with a sulphur-containing ligand on a support. The catalyst may be manufactured by impregnating a catalyst support with a solution of gold or a compound thereof and a solution of a sulphur containing ligand to form a gold complex followed by drying the impregnated support. The sulphur containing ligand may be slected from the group consisting of a sulphonate, a thiosulphate, a thiocynate, thiourea, thionyl chloride, thiopropionic acid and thiomalic acid. The support may be carbon or may be a metal oxide. A catalyst comprising gold, or a compound thereof and trichloroisocyanuric acid or a metal dichloroisocyanurate on a support is also disclosed. A process for the hydrocholorination of an alkyne comprising reacting said alkyne with HCl in the presence of either of the previously mentioned catalysts is also disclosed. |
