초록 ▼

The invention concerns a process for the synthesis of zeolites based on element(s) T and mesoporous solids based on element(s) T, T being silicon and/or aluminium, comprising the following sequence of steps: i) synthesizing a reaction medium which is a homogeneous source of element(s) T containing:

The invention concerns a process for the synthesis of zeolites based on element(s) T and mesoporous solids based on element(s) T, T being silicon and/or aluminium, comprising the following sequence of steps: i) synthesizing a reaction medium which is a homogeneous source of element(s) T containing: a) at least one source of element(s) T selected from the group formed by aqueous basic solutions of silica or silica and alumina and alcoholic solutions of alkyl tetraorthosilicate and trialkoxyaluminium; b) optionally, at least one structuring agent; c) optionally, seeds of the desired crystalline phase; ii) heating the reaction medium to a temperature in the range 20°C. to 220°C. for a period in the range several minutes and several days; iii) injecting at least one chemical agent at a controlled rate to generate polycondensable species in said medium.

대표청구항 ▼

A process for the synthesis of zeolites based on silicon or based on silicon and aluminium, or mesoporous solids based on silicon or based on aluminium, or based on silicon and aluminium, comprising: i) synthesizing a reaction medium as a source of at least one element(s) T, T being silicon or alumi

A process for the synthesis of zeolites based on silicon or based on silicon and aluminium, or mesoporous solids based on silicon or based on aluminium, or based on silicon and aluminium, comprising: i) synthesizing a reaction medium as a source of at least one element(s) T, T being silicon or aluminium, said medium being an aqueous solution containing at least one source of at least one element(s) T which source is an aqueous basic solution or an alcoholic solution of an alkyl tetraorthosilicate or a trialkoxyaluminate; ii) heating the reaction medium; and iii) injecting at least one chemical agent at a rate effective to generate polycondensable species in said medium, whereby upon injection of said agent, said species undergo crystallization to form a zeolite or mesoporous solid.