Simplified methods of manufacturing titanium silicate membranes
AssigneeEngelhard Corporation
InventorsSteven M. Kuznicki, Richard M. Jacubinas, Tadeusz W. Langner
Life of this patent
Estimating the term…
Abstract
A simplified method of forming a porous crystalline titanium silicate membrane comprises preforming a mass of titanium dioxide particles into a consolidated preform such as by pressing into a thin film, and contacting the thin film of titanium dioxide with an aqueous alkaline silicate synthesis solution at a temperature and for a period of time sufficient to form the titanium silicate in-situ.
Claims36
A method of manufacturing a membrane of a porous, crystalline titanium silicate comprising:
- preforming particles of titanium dioxide into a desired consolidated shape, contacting said consolidated shape of titanium dioxide with an aqueous alkaline synthesis solution of silicate, under conditions of temperature and time sufficient to grow titanium silicate crystals in-situ from the consolidated shape of titanium dioxide in the form of a crystalline titanium silicate membrane.
A method of forming a membrane of a porous, crystalline metalloate comprising:
- preforming a mass of particulate metal oxide into a consolidated preform, forming an aqueous synthesis solution of either an alkaline silicate or acidic phosphate for reaction with said metal oxide to produce said metalloate and contacting said consolidated preform of metal oxide with said synthesis solution for a time and temperature sufficient to form said metalloate in-situ from said consolidated preform of metal oxide in the form of a crystalline metalloate membrane.
A method of forming a membrane of a porous, crystalline metalloate comprising:
- pressing a mass of particulate metal oxide into a consolidated film, forming an aqueous synthesis solution for reaction with said metal oxide to produce said metalloate and contacting said consolidated film of metal oxide with said synthesis solution for a time and temperature sufficient to form metalloate crystals in-situ from said consolidated film of metal oxide in the form of a crystalline metalloate membrane.
Dependencies are inferred from the claim text.