摘要 |
A process for preparing phyllomineral synthetic particles formed from constituent chemical elements in stoichiometric proportions including at least one chemical element selected from the group formed from silicon and germanium, and at least one chemical element selected from the group formed from divalent metals and trivalent metals, by a continuous solvothermal treatment at a pressure above 1 MPa and at a temperature between 100° C. and 600° C., by making the reaction medium circulate continuously in a solvothermal treatment zone of a continuous reactor (15) with a residence time of the reaction medium in the solvothermal treatment zone that is suitable for continuously obtaining, at the outlet of the solvothermal treatment zone, a suspension including the phyllomineral synthetic particles. |
主权项 |
1. Process for preparing phyllomineral synthetic particles formed from chemical elements, named constituent chemical elements, in predetermined proportions, named stoichiometric proportions, said constituent chemical elements comprising at least one chemical element selected from the group consisting of silicon and germanium, and at least one chemical element selected from the group consisting of divalent metals and trivalent metals, via a treatment, named a solvothermal treatment, of a reaction medium comprising a liquid medium and containing said stoichiometric proportions of said constituent chemical elements of said phyllomineral synthetic particles, said phyllomineral synthetic particles belonging to the group of non-swelling phyllosilicates,
in which: said solvothermal treatment is performed continuously at a pressure greater than 1 MPa and at a temperature of between 100° C. and 600° C., the reaction medium is continuously circulated in a zone, named the solvothermal treatment zone, of a continuous reactor (15) with a residence time of the reaction medium in said solvothermal treatment zone that is suitable for continuously obtaining, at the outlet of said solvothermal treatment zone, a suspension comprising said phyllomineral synthetic particles. |