摘要:
The invention relates to a method of producing a composite comprising nanofibres or nanotubes on a porous β-SiC substrate, said method comprising the following steps: (a) a catalyst for growing nanotubes or nanofibres is incorporated into said porous β-SiC substrate or into an SiC precursor; (b) carbon nanotubes or nanofibres are grown from a mixture comprising hydrogen and at least one hydrocarbon; and (c) optionally, said carbon nanotubes or nanofibres are converted to SiC nanofibres. This composite may be used as a catalyst or catalyst support.
摘要:
A process for the preparation of dimethyl ether by catalytic dehydration of methanol, in which there is used a catalyst based on a zeolite immobilized on a silicon carbide support, for example a zeolite of type ZSM-5 supported on silicon carbide extrudates or on a silicon carbide cellular foam.
摘要:
A process for the preparation of dimethyl ether by catalytic dehydration of methanol, in which there is used a catalyst based on a zeolite immobilized on a silicon carbide support, for example a zeolite of type ZSM-5 supported on silicon carbide extrudates or on a silicon carbide cellular foam.
摘要:
The present invention provides compounds of formula (I) wherein n, p, R1, R2, X1, X2, X3, X4, X5, R3a, R3b, R4, R5 and R6 are as defined in the specification, a process for their preparation, pharmaceutical compositions containing them and their use in therapy.
摘要:
The present invention provides compounds of formula (I) wherein n, p, R1, R2, X1, X2, X3, X4, X5, R3a, R3b, R4, R5 and R6 are as defined in the specification, a process for their preparation, pharmaceutical compositions containing them and their use in therapy.
摘要:
Compounds of formula (I): The present invention relates to novel indazolyl ester or amide derivatives, to pharmaceutical compositions comprising such derivatives, to processes for preparing such novel derivatives and to the use of such derivatives as medicaments
摘要:
The invention provides compounds of formula (I) wherein m R1, n, R2, q, X, Y, Z, R3, R4, R5, R6, R7, R8, t, and R9 are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy.
摘要:
The invention provides compounds of formula (I) wherein m, R1, n, R2, q, X, Y, Z, t, R3, R4, R5, R6, R7 and R8 are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy.
摘要:
The invention provides compounds of formula (I) wherein m, R1, n, R2, q, p, X, Y, R3, R4, t and, R5 are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy.
摘要翻译:本发明提供式(I)化合物,其中m,R 1,n,R 2,q,p,X,Y,R 3 O R 4,t和R 5如说明书中所定义,其制备方法,含有它们的药物组合物及其在治疗中的用途。
摘要:
Compounds of formula (I): The present invention relates to novel indazolyl ester or amide derivatives, to pharmaceutical compositions comprising such derivatives, to processes for preparing such novel derivatives and to the use of such derivatives as medicaments