申请人:SUMITOMO CHEMICAL COMPANY LIMITED
公开号:EP0624553A1
公开(公告)日:1994-11-17
Disclosed are a process for producing a photochromic titanium oxide compound, which comprises
(i) dissolving at least one organotitanium compound and at least one organic compound containing at least one metal selected from the group consisting of sodium, iron, chromium, copper, nickel, vanadium, manganese, silicon, zinc, aluminum, cerium, cobalt, niobium, zirconium, molybdenum and silver in an organic solvent to form a homogeneous solution, and if desired, partially removing said organic solvent,
(ii) substantially simultaneously hydrolyzing the organotitanium compound and the metal-containing organic compound in the solution obtained in step (i),
(iii) separating the organic solvent from the resultant hydrolysate, and
(iv) calcining the hydrolyzate, wherein said steps (ii) and (iii) may be carried out concurrently, as well as a photochromic titanium oxide compound prepared by the process.
公开了一种生产光致变色氧化钛化合物的工艺,其中包括
(i) 将至少一种有机钛化合物和至少一种含有选自钠、铁、铬、铜、镍、钒、锰、硅、锌、铝、铈、钴、铌、锆、钼和银所组成的组中的至少一种金属的有机化合物溶解在有机溶剂中,形成均匀溶液,如果需要,部分除去所述有机溶剂、
(ii) 基本同时水解步骤(i)中所得溶液中的有机钛化合物和含金属有机化合物、
(iii) 从水解产物中分离出有机溶剂,以及
(iv) 煅烧水解物,其中所述步骤(ii)和(iii)可同时进行,以及通过该工艺制备的光致变色氧化钛化合物。