NEW METHOD AND PRODUCT Russian patent published in 2019 - IPC C01B21/76 C01B32/30 C01B33/06 C01B35/04 

FIELD: chemistry.

SUBSTANCE: invention relates to a compound in form of powder and a method for production thereof, specifically carbides, nitrides, borides and silicides of metals. Said compound is a product of reaction (i) of at least one metal and/or metalloid and (ii) at least one additional element which is more electronegative than said or each said metal and/or metalloid. This method includes the following stages: a) mixing at least one oxide of said at least one metal and/or metalloid with a reducing agent containing granules or powder of Ca or Mg and/or with calcium hydride or magnesium hydride in form of granules or powder to form a mixture; b) exposing the mixture to a source of said at least one additional element; c) holding said mixture in atmosphere H₂ at temperature from 950 to 1,500 °C for 1–10 hours and d) extracting said compound in powder form; wherein said at least one additional element is selected from carbon, nitrogen, boron, silicon and mixtures thereof.

EFFECT: technical result consists in improved and cost-effective production of powders of high quality from the corresponding metal oxide or metalloid.

20 cl, 23 dwg, 5 ex