Patents-Review.com
ClassID:

126430 ⎘

D21C11/0028 - CPC Classification

Classification description:

Regeneration of pulp liquors or effluent waste waters; Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle) Effluents derived from the washing or bleaching plants

Recent Application in this class:
#1
20180319682
2018-11-08

Method for optimising material recovery in a chemical pulping process

 #2
20160305068
2016-10-20

Biomass treatment for hydrothermal hydrocatalytic conversion

 #3
20160298293
2016-10-13

Biomass treatment for hyperthermal hydrocatalytic conversion

 #4
20150315746
2015-11-05

Methods of processing plant fiber, and related systems and compositions

 #5
20150167241
2015-06-18

Biomass treatment for hydrothermal hydrocatalytic conversion

 #6
20150167240
2015-06-18

Biomass treatment for hydrothermal hydrocatalytic conversion

 #7
20150167239
2015-06-18

Biomass treatment for hydrothermal hydrocatalytic conversion

 #8
20150167238
2015-06-18

Biomass treatment for hydrothermal hydrocatalytic conversion

 #9
20150167237
2015-06-18

Biomass treatment for hydrothermal hydrocatalytic conversion

 #10
20150167236
2015-06-18

Biomass treatment for hydrothermal hydrocatalytic conversion

 #11
20150167235
2015-06-18

Biomass treatment for hydrothermal hydrocatalytic conversion

 #12
20140174679
2014-06-26

BCTMP filtrate recycling system and method

 #13
20120193050
2012-08-02

Method and assembly for processing cellulose pulp of wood processing industry

 #14
20110232853
2011-09-29

BCTMP filtrate recycling system and method

 #15
20100243184
2010-09-30

Method for treating liquid flows at a chemical pulp mill

 #16
20100243183
2010-09-30

Method in connection with the washing of pulp at a chemical pulp mill

 #17
20100012283
2010-01-21

Method to use heat energy from black liquor

 #18
20060049106
2006-03-09

Method and arrangement in maing of mechanical pulp