Oxides extracted from vegetal matter and process therefor

Details Oxides extracted from vegetal matter and process therefor Oxides extracted from vegetal matter and process therefor

2001-02-19

2009-08-11

Bos, Steven (Department: 1793)

Chemistry of inorganic compounds

Miscellaneous process

C423S001000, C423S335000, C423S658500

Reexamination Certificate

active

07572433

ABSTRACT:
The invention concerns a process for the extraction of acid or basic oxides contained in a vegetal matter, more specifically it concerns the extraction of silica from rice husks. The invention also concerns pure oxides extracted from vegetal matter. The invention also concerns the process for the extraction of carbon-rich oxide compositions from vegetal matter, and compositions obtained through said process.

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Chapelle, “Action of slag calcic sulphates on pozolanes”, Revue de Materiaux de Construction, vol. 512, pp. 136 and following, 1958, France.

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