Ferrofluid Synthesis Using Nitrosated Lignosulfonates

Autor: Igor M. Babkin, Mikhail Iakovlev, Olga Brovko, Yuriy G. Khabarov
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH. 52(23):7746-7751
ISSN: 0888-5885
DOI: 10.1021/ie400531f
Popis: Modified lignosulfonates are shown to be an effective peptising agent in the synthesis of nanosized colloids of magnetite in aqueous media. The effects of lignin modification by nitrosation reaction, as well as the effects of molecular weight and lignosulfonate type, are explored. The results show that relative magnetic permeability (RMP) as high as 35 g/g Fe is achieved when using high molecular weight nitrosated lignosulfonates from the acid sulfite pulping process.
Databáze: OpenAIRE