Entrained-flow chlorination of titaniferous slag to produce titanium tetrachloride

被引：14

作者：

Bonsack, JP ^{[1
]}

Schneider, FE ^{[1
]}

机构：

[1] Millennium Inorgan Chem, Res Ctr Baltimore, Glen Burnie, MD 21060 USA

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2001年 / 32卷 / 03期

关键词：

Material Transaction; Petroleum Coke; Titanium Tetrachloride; Median Particle Diameter; Chlorination Rate;

D O I：

10.1007/s11663-001-0022-x

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Preparation of titanium tetrachloride was investigated by chlorination of a low-grade titaniferous slag in an entrained-flow reactor over the 550 to 1100 degreesC temperature range. Chlorination rates were highly dependent on the reactivity of the carbon used in the chlorination reaction. Use of a lignitic char resulted in the higher chlorination rates, whereas use of petroleum coke resulted in lower reaction rates. Use of bituminous coke gave intermediate chlorination rates. Above 700 degreesC, the chlorination reaction rate is controlled by mass transfer. Chlorine is completely reacted in 2.5 seconds at 1100 degreesC using slag/char feedstocks of 7-mum median particle diameter, with 10 to 25 pct excess carbon and 15 to 20 pct excess slag.

引用

页码：389 / 393

页数：5