ORGANIC CARBONATE PRODUCTION CATALYST AND METHOD OF PRODUCING ORGANIC CARBONATES Russian patent published in 1998 - IPC

FIELD: catalyst production. SUBSTANCE: organic carbonates are prepared by using catalyst on porous carbon carrier, said catalyst being catalytically active copper complex compound CuCl and copper diketonates CuL*2

where L is organic or inorganic compound selected from the following group: alifatic alcohols with general formula R(OH)_x where R is C₁-C₁₂-alifatic radical and x= 1-4; aromatic alcohols with general formula R(OH)_x where R is aromatic radical and x=1-4; diketones with general formula R₁-CO-CH₂-CO-R₂ where R₁ and R₂ are methyl, ethyl, propyl, or isopropyl; carboxylic acids with general formula R(COOH)_x where R is alifatic or aromatic C₁-C₁₀-radical and x=1-4; polybasic inorganic acids or their acidic salts with general formula M_xC_yO_z where M is H or alkali metal cation, G is B, P, or S, x+1-3, y+1-2, and z=3-7; L* is diketone with general formula R₁-CO-CH₂-CO-R₂ where R₁ and R₂ are organic radicals with general formula C_fH_g (f=1-3 and g=3-9). EFFECT: increased yield of products, increased stability and activity of catalyst, and simplified process. 4 cl, 2 tbl