3815 Reaction initiators, reaction accelerators and catalytic preparations, n.e.s. (excl. rubber accelerators)

3815 (01/1988-..) Reaction initiators, reaction accelerators and catalytic preparations, n.e.s. (excl. rubber accelerators) 38151100 (01/1988-..) Supported catalysts with nickel or a nickel compound as the active substance, n.e.s. 38151200 (01/1988-..) Supported catalysts with precious metal or a precious-metal compound as the active substance, n.e.s. 38151900 (01/1988-12/1996) Supported catalysts n.e.s. (excl. with precious metal, a precious metal compound, nickel or a nickel compound as the active substance) 38151910 (01/1997-..) Catalysts in the form of grains of which >= 90% by weight have a particle-size <= 10 micrometres, consisting of a mixture of oxides on a magnesium-silicate support, containing by weight >= 20% but <= 35% of copper and >= 2% but <= 3% of bismuth and of an apparent specific gravity of >= 0,2 but <= 1,0 38151990 (01/1997-..) Supported catalysts, n.e.s. (excl. supported catalysts with precious metal, a precious-metal compound, nickel or a nickel compound as the active substance and catalysts in the form of grains of which >= 90% by weight have a particle-size <= 10 micrometres, consisting of a mixture of oxides on a magnesium-silicate support, containing by weight >= 20% but <= 35% of copper and >= 2% but <= 3% of bismuth and of an apparent specific gravity of >= 0,2 but <= 1,0) 38159000 (01/1988-12/1996) Reaction initiators, reaction accelerators and catalytic preparations n.e.s. (excl. rubber accelerators and supported catalysts) 38159010 (01/1997-..) Catalysts consisting of ethyltriphenylphosphonium acetate in the form of a solution in methanol (excl. supported catalysts) 38159090 (01/1997-..) Reaction initiators, reaction accelerators and catalytic preparations, n.e.s. (excl. rubber accelerators, supported catalysts and catalysts consisting of ethyltriphenylphosphonium acetate in the form of a solution in methanol)