| 摘要 |
1. A process for preparing a mercury recovery solid mass containing a solid inorganic carrier or dispersing agent and copper, at least partly as sulfide, characterized in that it comprises the following steps of : a) incorporating at least one copper compound other than a sulfide with a solid inorganic carrier or dispersing agent, b) optionally roasting the product obtained in step (a) so as to convert at least partly the one or more copper compounds contained therein to copper oxide, c) incorporating with the resultant product from step (b) or from step (a) at least one organic polysulfide of formula R - S(n) -R', wherein n is an integer from 2 to 20, R is a hydrogen atom or an organic radical containing 1-150 carbon atoms, selected from the group formed of saturated or unsaturated, linear or branched alkyl radicals, or radicals of naphthenic type, aryl radicals, alkylaryl and arylalkyl radicals, and R' is an organic radical, identical to or different from R, having 1-150 carbon atoms, selected from the group of the organic radicals defined for R, and d) subjecting the resultant product from step (c), called precursor, to a thermal treatment in non-oxidizing atmosphere, under gas scavenging, at a sufficient temperature and for a sufficient time to form the sulfide of the one or more present metal(s). |
