Bromine Compounds Limited

Imi Tami Institute for Research and Development Ltd.

David Fuks

Eyal Barnea

Mira Bergstein Freiberg

Ezra Hanuka

Gideon Friedman

Sarit Sarmili

Dina Alba

Aviad Karniel

A method for separating protein from plant or algae material is disclosed. The method comprises mixing the protein-containing material with a solvent, preferably water; extracting the protein-containing material at pH&#x3e;7; and acidifying the mixture, thereby precipitating protein and fiber together. In some embodiments of the invention, the separation additionally comprises decanting the mixture to recover a protein/fiber solid; adding water to the protein/fiber solid; adding a predetermined quantity of base to the protein/fiber/water system, thereby precipitating fiber; separating the fiber from the protein in a decanter; and drying the protein solution. In other embodiments, the protein/fiber solid is processed directly, e.g. by being passed to an extruder. The use of the fiber as a carrier for the protein makes the inventive method more efficient than methods known in the art; in particular, the inventive method does not require the use of a high-g clarifier centrifuge.

Process for extraction of protein from plant or algal matter

A solvent extraction process for recovering bromide from a sulfate-containing aqueous stream, the process comprises an extraction step wherein said aqueous stream is mixed with an extraction medium comprising a tertiary amine extractant dissolved in one or more water-immiscible organic solvents, wherein said mixing is carried out in a strongly acidic environment, thereby forming bromide-containing extract and a raffinate with a reduced bromide level, wherein the bromide-containing extract is optionally treated to further minimize the presence of sulfate and is subsequently combined with an aqueous calcium source to form calcium bromide.

Recovery of bromide from sulfate comprising aqueous streams

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Haifa, Israel

David Fuks