Removal of lithium from polymer cements

Details Removal of lithium from polymer cements Removal of lithium from polymer cements

1996-05-23

1998-12-08

Teskin, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

528486, 526173, 523310, C08F 624

Patent

active

058470727

ABSTRACT:
The selectivity of ion exchange processes for the removal of lithium from acids is improved when weak acids such as citric and acetic, are used in the wash step. An added improvement is realized by a two stage process of contacting the acid solution first with an ion exchange resin functional to remove the nickel and aluminum compounds from the acid solution; and then contacting the acid solution with an ion exchange resin which is more selective to remove the alkali metal compound from the acid solution.

REFERENCES:
patent: 3176037 (1965-03-01), Warner
patent: 3780138 (1973-12-01), Hassell
patent: 4098990 (1978-07-01), Lutze et al.
patent: 4636540 (1987-01-01), Warfel
patent: 5391663 (1995-02-01), Bening et al.

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