Process for removing solid organic materials and other impuritie

Details Process for removing solid organic materials and other impuritie Process for removing solid organic materials and other impuritie

1978-05-02

1981-09-15

Halper, Robert

Classifying, separating, and assorting solids

With heat treatment

209164, 209168, 209166, 423321S, B03B 102

Patent

active

042896096

ABSTRACT:
The solid organic materials contained in wet-process phosphoric acid are removed by froth flotation in a flotation cell in which the solid organic materials overflow with the foam from the top of the cell and the acid, after passing through the cell, is passed to extraction. The froth flotation process can also be used to remove defoamer and organic soluble materials from the wet-process phosphoric acid. Uranium in the partially purified phosphoric acid product is extracted with a suitable organic extractant, typically a mixture of mono- and di-(alkylphenyl) esters of orthophosphoric acid.

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