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Chemistry for Sustainable Development

2003 year, number 3

Highly Mineralized Natural Brines

ALEXANDER D. RYABTSEV, NATALIA P. KOTSUPALO, ALEXANDER A. KURAKOV, LARISA T. MENZHERES and ELENA V. MAMYLOVA
Ekostar-Nautech Ltd., P.O. Box 86, Novosibirsk 630075 (Russia); E-mail: kotsu@mail.nsk.ru
Pages: 527-535

Abstract

A technology for obtaining magnesium oxide from brines on the background of prevalent amount of calcium chloride is proposed. The possibility of a combined obtaining magnesium and calcium compounds in the form of magnesia and calcium chloride hexahydrate is demonstrated. It is recommended to use concentrated calcium chloride solutions for preparation of drilling fluids.