Development of Recovery Process of Organic Dyes using by High Gradient Magnetic Separation

Autor:	Isao Tari, Shigehiro Nishijima, Shinichi Takeda, Sung-Jin Yu, Atsushi Nakahira
Rok vydání:	2003
Předmět:	chemistry.chemical_compound Colloid Adsorption Aqueous solution Chemical engineering Chemistry Scientific method Magnetic separation Molecule Fraction (chemistry) human activities Magnetite
Zdroj:	TEION KOGAKU (Journal of the Cryogenic Society of Japan). 38:77-82
ISSN:	1880-0408 0389-2441
DOI:	10.2221/jcsj.38.77
Popis:	The recovery of organic dye molecules from aqueous solution was accomplished using a magnetic colloid seeding process under high-gradient magnetic separation. The recovery fraction of the dye molecule using prepared magnetic colloid was found to be much higher than that using magnetite particles. It was found that the recovery fraction of the dye molecule was dependent on the adsorption capacity of the dye molecule. We also confirmed that, among the dyes with various kinds of molecular structures and functional groups, the dye molecules having the azo group could adsorb more easily onto the colloid particles than the dye without the azo group.
Databáze:	OpenAIRE
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