WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

C12F　DISTILLATION OR RECTIFICATION OF FERMENTED SOLUTIONS; RECOVERY OF BY-PRODUCTS; DENATURING OF, OR DENATURED, ALCOHOL

C12F 3/00 Recovery of by-products

C12F 3/02 ・of carbon dioxide

C12F 3/04 ・・Recovery of volatile fermentation products from carbon dioxide

C12F 3/06 ・from beer and wine (C12F 3/02 takes precedence; removal of yeast C12G 1/08)

C12F 3/08 ・・Recovery of alcohol from press residues or other waste material (from carbon dioxide C12F 3/04)

C12F 3/10 ・from distillery slops

C12F 5/00 Preparation of denatured alcohol