Sulphur monoclinic compounds production process

Details Sulphur monoclinic compounds production process Sulphur monoclinic compounds production process

C - Chemistry, Metallurgy

01

B

C01B 17/20 (2006.01) C01F 17/00 (2006.01) C01G 1/12 (2006.01)

Patent

CA 2035185

This invention concerns a process for synthesizing binary sulphur compounds selected from among the rare earth sulphur compounds and transition metals. It consists in initiating a reaction between a rare earth compound, that is, a transition metal oxide, and a carbonaceous compound of sulphur in the gaseous state. It is unique in that the entire reaction is carried out in a closed compartment and uses a rare earth compound or transition metal oxide in solid form. The products obtained are either superior rare earth sulphides or rare earth sesquisulphides.

La présente invention concerne un procédé de synthèse de composés binaires du soufre choisis parmi les composés soufrés de terres rares et de métaux de transition, consistant à faire réagir soit un composé de terre rare, soit un oxyde de métal de transition, avec un composé carboné du soufre à l'état gazeux, caractérisé en ce que l'on conduit l'ensemble de la réaction en enceinte fermée et en ce que l'on utilise un composé de terre rare ou un oxyde de métal de transition sous forme solide. Les produits obtenus sont soit des sulfures supérieurs de terres rares, soit des sesquisulfures de terres rares.

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