ClassID:

126445

D21C11/08 - CPC Classification

Classification description:

Regeneration of pulp liquors or effluent waste waters; Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO, e.g. arising from liquors containing sulfur compounds Deodorisation Elimination of malodorous compounds, e.g. sulfur compounds such as hydrogen sulfide and mercaptans, from gas streams

Recent Application in this class:
#1
20240384467
2024-11-21

SYSTEMS AND TECHNIQUES FOR CONTROLLING ODOR EMISSIONS FROM PULP MILLS

#2
20230183920
2023-06-15

Method for removing ammonia from non-condensable gases of a pulp mill

#3
20230023359
2023-01-26

A method of removing volatile compounds from a lignin-containing material, use of a distillation method, and a lignin-containing material

#4
20230009849
2023-01-12

ODOR CONTROL PULP COMPOSITION

#5
20220185700
2022-06-16

KRAFT PULPING FOUL CONDENSATE TREATMENT PROCESS AND APPARATUS

#6
20210180250
2021-06-17

Method and apparatus for burning odor gas

#7
20200385928
2020-12-10

Odor control pulp composition

#8
20200385925
2020-12-10

Method and a system for adjusting S/Na-balance of a pulp mill

#9
20200291574
2020-09-17

Method and a system for adjusting S/Na-balance of a pulp mill

#10
20200283954
2020-09-10

METHOD OF CONTROLLING THE CHEMICAL BALANCE OF A PULP MILL

#11
20180274172
2018-09-27

Odor control pulp composition

#12
20110280762
2011-11-17

Method in the treatment of odorous gases of a chemical pulp mill

#13
20110142740
2011-06-16

Method and system for treatment of malodorous gases emanating from a pulp mill

#14
20100316553
2010-12-16

Method for extracting ammonium salt and methanol from a liquid obtained from foul condensates in a cellulose pulp mill

#15
20100213122
2010-08-26

Waste water treatment

#16
20090000752
2009-01-01

Use of cyclodextrins for odor control in papermaking sludges, and deodorized sludge and products

#17
20080251450
2008-10-16

Waste water treatment

#18
20070034344
2007-02-15

Desulphurization of odorous gases of a pulp mill