C - Chemistry – Metallurgy – 01 – C
Patent
C - Chemistry, Metallurgy
01
C
C01C 1/28 (2006.01) B01D 15/36 (2006.01) C05C 3/00 (2006.01) C05D 1/02 (2006.01) C12P 3/00 (2006.01) C12P 7/10 (2006.01) C12P 19/14 (2006.01)
Patent
CA 2565433
A method for recovering inorganic salt during processing of a lignocellulosic feedstock is provided. The method comprises pretreating the lignocellulosic feedstock by adding an acid or a base to the feedstock to produce a pretreated lignocellulosic feedstock. A soluble base or acid is then added to the pretreated lignocellulosic feedstock to adjust the pH and produce a neutralized feedstock. The neutralized feedstock is then hydrolyzed to produce an hydrolyzed feedstock and a sugar stream. Inorganic salt is recovered from a wash stream obtained from the pretreated lignocellulosic feedstock, a stream obtained from the neutralized feedstock, a stream obtained from the sugar stream, or a combination of these streams. The inorganic salt may be concentrated, clarified, recovered and purified by crystallization, electrodialysis, drying, or agglomeration and granulation, and then used as desired, for example, as a fertilizer.
Anand Vijay
Foody Brian
Rahme Ziyad
Tolan Jeffrey S.
Gowling Lafleur Henderson Llp
Iogen Energy Corporation
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