Solid extraction process
The invention provides a method for converting a solid mixture (200) into a non- dissolved part (310), a precipitated part (320) and a supernatant part (330), the method comprising: an extraction stage (10) comprising dissolving at least part of the solid mixture (200) in an extraction liquid (400),...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The invention provides a method for converting a solid mixture (200) into a non- dissolved part (310), a precipitated part (320) and a supernatant part (330), the method comprising: an extraction stage (10) comprising dissolving at least part of the solid mixture (200) in an extraction liquid (400), thereby providing a liquid mixture (500) and the non- dissolved part (310), Wherein the extraction liquid (400) comprises (a) an organic extraction material (410) selected from the group consisting of acetone and alcohols, (b) at least 0.01 M of OH', (c) at least 0.01 M of a cation (430) selected from the group comprising Na+, K+, Ca2+, Mg2+ and NH4+, and (d) water (700), a first separation stage (20) comprising separating the liquid mixture (500) from the non-dissolved part (310); and a precipitation stage (30) comprising providing C02 (600) to the liquid mixture (500), thereby providing the precipitated part (320) and the supernatant part (330). |
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