Recovery of sulphuric acid

Details Recovery of sulphuric acid Recovery of sulphuric acid

2007-08-10

2008-10-28

Vanoy, Timothy C (Department: 1793)

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

C423S525000, C423S531000, C210S641000, C210S651000, C210S749000, C210S767000, C127S001000, C127S036000, C127S037000

Reexamination Certificate

active

07442359

ABSTRACT:
The invention is directed to a process for the recovery of sulphuric acid from a mixture comprising sulphuric acid and hydrocarbons, in particular carbohydrates. In accordance with the present invention the mixture comprising sulphuric acid and carbohydrates, is contacted with an anion selective membrane, thus producing a sulphuric acid rich filtrate stream and a stream depleted in sulphuric acid.

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patent: 2004/0222157 (2004-11-01), Minhas et al.
patent: 2008/0041366 (2008-02-01), Wahnon

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