Process for synthesizing compounds binaries, sulphur compound rare earth sulphide, mixture of sulfur compounds, sesquissulfetos rare earth and transition metal sulfide

摘要

Process for the synthesis of binary sulphur compounds, such as rare-earth and transition metal sulphur compounds. …??This process consists in reacting a rare-earth compound, for example oxide or carbonate, or a transition metal oxide with a sulphur carbon compound such as CS2, in a closed vessel at a pressure of between 1 x 105 Pa and 150 x 105 Pa. …??The products obtained are either rare-earth higher sulphides or rare-earth sesquisulphides.