公开(公告)号：US20030082099A1

公开(公告)日：2003-05-01

申请号：US10307406

申请日：2002-12-02

Applicant: SHOWA DENKO K.K.

Inventor： Jun Tanaka ,  Susumu Kayama ,  Shin-Ichiro Tomikawa

IPC: C01G023/07

CPC classification number: C01G23/07 ,  C01P2004/04 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/12

Abstract: Particulates, particularly ultrafine particulates of titanium oxide having a BET specific surface area of from about 3 m2/g to about 200 m2/g, preferably from about 5 m2/g to about 200 m2/g, and more preferably from about 10 m2/g to about 200 m2/g are obtained using a vapor phase process of producing titanium oxide by oxidizing titanium tetrachloride with an oxidizing gas at a high temperature, wherein a titanium tetrachloride-containing gas and an oxidizing gas are reacted after preheating each gas at about 500null C. or more. The particulates, particularly ultrafine particulates of titanium oxide have less aggregation and have highly excellent dispersibility.

Abstract translation: 具有BET比表面积为约3m 2 / g至约200m 2 / g，优选约5m 2 / g至约200m 2 / g，更优选约10m 2 / g的氧化钛的微粒，特别是超细微粒， 使用通过在高温下用氧化性气体氧化四氯化钛来生产氧化钛的气相工艺获得约200m 2 / g，其中含四氯化碳的气体和氧化性气体在大约每一种气体预热后反应 500℃以上。 微粒，特别是二氧化钛的超微粒子具有较少的聚集性，并具有非常优异的分散性。