| 摘要 |
PCT No. PCT/FR90/00195 Sec. 371 Date Oct. 17, 1991 Sec. 102(e) Date Oct. 17, 1991 PCT Filed Mar. 23, 1990 PCT Pub. No. WO90/12647 PCT Pub. Date Nov. 1, 1990.For the sulfuration a new or regenerated catalyst, containing a support with a base of at least one metal oxide or a metalloid, and at least one active metal, the catalyst is impregnated in the absence of hydrogen with an aqueous ammonium sulfide solution at a temperature between 0 DEG and 50 DEG , in the presence of at least one sulfur additive selected in the group consisting of thiodazoles, thio acids, thio amides, thiocyanates, thio esters, thiophenols, thiosemicarbazides, thioureas, mercapto alcohols of formula <IMAGE> where n and m are whole numbers, R1, R2, R3, R4, identical or different, are atoms of hydrogen or alkyl, aryl, aralkyl, alkylaryl organic radicals, thiols of formula R1-SH where R is an organic radical, thio ethers of formula R1-S-R2 where R1 and R2 are defined as above and the organic disulfides of formula R1-S-S-R2 where R1 and R2 are defined as above.
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