D21C3/14 - CPC Classification Index

ClassID:

126352 ⎘

D21C3/14 - CPC Classification

Classification description:

Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites ammonium bisulfite

Recent Application in this class:

20160362353

2016-12-15

INTEGRATED PROCESS FOR PRODUCING CELLULOSIC PULP AND POLYOLS STREAM

20140073016

2014-03-13

Treatment of biomass to dissolve lignin with ionic liquid composition

20110297343

2011-12-08

Raw Paper

20100136634

2010-06-03

METHOD AND EQUIPMENT FOR PRODUCTION OF GLUCOSE, ETHANOL,FURFURAL,FURANE AND LIGNIN FROM RENEWABLE RAW MATERIALS