QUANTITATIVE CONTROL OF SPECIFIC SURFACE-AREA IN NEEDLE-LIKE ALPHA-FEOOH - FINE-PARTICLE PRODUCTION

被引：3

作者：

HASHIMOTO, N

机构：

[1] Technical Research Laboratory, Mitsui Toatsu Chemicals Inc.

来源：

KAGAKU KOGAKU RONBUNSHU | 1994年 / 20卷 / 01期

关键词：

HETEROGENEOUS REACTION; BUBBLE COLUMN REACTOR; PRECIPITATION; GOETHITE; SPECIFIC SURFACE AREA; FINE PARTICLE;

D O I：

10.1252/kakoronbunshu.20.8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Pre-commericial scale production experiments were carried out to obtain needlelike alpha-FeOOH fine particles. They were produced from ferrous sulfate aqueous solution, sodium hydroxide solution and oxygen in air under higher pH than 12, using a batch-wise method. Experiments were carried out with three kinds of particles: a) Fe only, b) Fe plus minor Ni or Cr, and c) Fe plus minor Cr and Zn. In all cases, the measured specific surface area of the particles was well correlated with the oxidation time, and a simple two-constant equation was proposed. The equation is very useful for quantitative control of the specific surface area in the production of needle-like alpha-FeOOH particles.

引用

页码：8 / 13

页数：6

共 3 条

[1] PRODUCTION OF NEEDLE-LIKE ALPHA-FEOOH FINE PARTICLES BY AN INTERMITTENT AND RAPID OXIDATION METHOD
HASHIMOTO, N
FUKUDA, N
OHSHIMA, K
MATSUNAGA, M
KAGAKU KOGAKU RONBUNSHU, 1995, 21 (01) : 8 - 14
[2] PARTICLE DISTRIBUTION OF NEEDLE-LIKE ALPHA-FEOOH IN PRE-COMMERCIAL SCALE PRODUCTION
HASHIMOTO, N
OHNO, T
MIKAMI, J
KITAGAWA, J
KAGAKU KOGAKU RONBUNSHU, 1994, 20 (01) : 14 - 20
[3] SLIP CONTROL USING PARTICLE-SIZE ANALYSIS AND SPECIFIC SURFACE-AREA
FUNK, JE
DINGER, DR
AMERICAN CERAMIC SOCIETY BULLETIN, 1988, 67 (05): : 890 - 894

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