Process for the production of polyalkylaromatic polysulfonic aci

Details Process for the production of polyalkylaromatic polysulfonic aci Process for the production of polyalkylaromatic polysulfonic aci

1984-07-19

1990-07-24

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonic acids or salts thereof

562 95, 562 99, C07C14324

Patent

active

049436562

ABSTRACT:
This invention relates to novel processes for the production of enhanced yields of polyalkylaromatic polysulfonic acids. More particularly, the invention pertains to processes for sulfonating polyalkylaromatic compounds employing sulfuric acid treatment and recovering the polyalkylaromatic polysulfonic acid produced thereby after formation of a three phase system by the addition of controlled amounts of water, causing the polysulfonic acid to accumulate in the bottom layer, with which it is readily separated.

REFERENCES:
patent: 1211923 (1917-01-01), Dennis
patent: 2764548 (1956-09-01), King et al.
patent: 3957859 (1976-05-01), Thielcke
patent: 3979478 (1976-09-01), Gallacher

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