John R. Fielding
Engineering at Todd Ave, Baton Rouge, LA
License number
Louisiana PE.0005830
Issued Date
Jun 3, 1957
Expiration Date
Mar 31, 2009
Category
Civil Engineer
Type
Mechanical Engineer
Address
Address
13213 Todd Ave, Baton Rouge, LA 70815
Professional information
Process For Extracting Lipids And Organics From Animal And Plant Matter Or Organics-Containing Waste Streams
US Patent:
5707673, Jan 13, 1998
Filed:
Oct 4, 1996
Appl. No.:
8/726239
Inventors:
John E. Prevost - Baton Rouge LA
Robert D. Clay - Baton Rouge LA
John R. Fielding - Baton Rouge LA
Robert D. Clay - Baton Rouge LA
John R. Fielding - Baton Rouge LA
Assignee:
PreWell Industries, L.L.C. - Jackson MS
International Classification:
A23D 902
US Classification:
426417
Abstract:
In a solvent extraction process for the extraction of an extractive from extractive-containing material employing in an extraction zone operating under extraction conditions a process solvent, whereby a miscella comprising a portion of the process solvent and a portion of the extractive, and an extractive-depleted substrate is formed, the improvement to which comprises: (a) removing the miscella from the extraction zone under extraction conditions, (b) filtering the miscella by use of a microfiltration, an ultrafiltration, a nanofiltration, or a reverse osmosis membrane, under conditions which achieve a differential pressure across said membrane, to separate the solvent in the miscella from the extractive in the miscella, and (c) recycling under extraction conditions at least a portion of the separated solvent to the extraction zone.