Method for selective separation of products at hydrothermal conditions

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Date

1998-07-28

Authors

Gloyna, Earnest F.
Li, Lixiong

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United States Patent and Trademark Office

Abstract

Sodium and borate ions are separated in supercritical water by addition of dissolved CO.sub.2 to cause precipitation of carbonates and the formation of boric acid. Carbonates and boric acid are then recovered as separate products.

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