MULTISTEP PROCESS FOR OBTAINING MODIFIED INORGANIC PARTICLES

摘要

The present invention relates to a multistep process for obtaining modified inorganic particles having a layered structure, characterized by the steps of a) Providing an aqueous solution or suspension comprising at least one first amino compound in a first vessel T1 and protonating the at least one first amino compound using at least one acid; b) Providing an aqueous homogenous suspension comprising at least one inorganic particle having a layered structure in a second vessel T2; c1) addition of the aqueous solution or suspension of the at least one first protonated amino compound from the first vessel T1 to the aqueous homogenous suspension comprising at least one inorganic particle having a layered structure in the second vessel T2; c2) Addition of at least one second non-protonated amino compound to the suspension obtained in step c1); d) Addition of at least one aldehyde to the homogenous suspension of the at least one inorganic particle being modified by the first protonated amino compound and second non-protonated amino compound in the second vessel T2; and e) removal and work up of the modified inorganic particles. The present invention relates also to modified inorganic particles obtained in this multistep process and their use.