Loading patent…
AssigneeInstitut Francais du Petrole
InventorsEric Benazzi, Pierre-Yves Legoff, Philippe Caullet, Jean-Louis Guth
Estimating the term…
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.degree. C. to 220.degree. 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.
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:
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 injecting, into an aqueous solution comprising at least one of an aqueous basic solution or an alcoholic solution of an alkyl tetraorthosilicate or a trialkoxyaluminate, at least one chemical agent at a rate effective to generate polycondensable species in said medium, wherein upon injection of said chemical agent, said species undergo crystallization to form a zeolite or mesoporous solid.
Dependencies are inferred from the claim text.