ClassID:

126450

D21C11/122 - CPC Classification

Classification description:

Regeneration of pulp liquors or effluent waste waters; Combustion of pulp liquors Treatment, e.g. dissolution, of the smelt

Recent Application in this class:
#1
20240401800
2024-12-05

Method and Apparatus for Improved Operation of Chemical Recovery Boilers

#2
20230175689
2023-06-08

Method and apparatus for improved operation of chemical recovery boilers

#3
20230057366
2023-02-23

Method for controlling a chemical recovery boiler and a chemical recovery boiler

#4
20220396918
2022-12-15

Automatic monitoring of smelt flow exiting a recovery boiler

#5
20220380978
2022-12-01

Disruptor assembly adjustment system and method

#6
20220120036
2022-04-21

Combustion of streams derived from hot water extraction of wood material

#7
20220074142
2022-03-10

Smelt shattering method and apparatus

#8
20210189649
2021-06-24

Disruptor assembly adjustment system and method

#9
20210010200
2021-01-14

Vent stack temperature as a feedforward variable for smelt dissolving tank TTA control

#10
20200048832
2020-02-13

System of thermal recovery relating to the operation of a dissolver of a chemical recovery boiler

#11
20190309474
2019-10-10

Combustion of streams derived from hot water extraction of wood material

#12
20190249364
2019-08-15

METHOD AND SYSTEM FOR TREATING SPENT PULPING LIQUOR

#13
20190024310
2019-01-24

Ultrasonic semelt dissolving and shattering system

#14
20180080173
2018-03-22

Method and a system for quality optimization of green liquor

#15
20170191661
2017-07-06

Isolation chamber for removable startup burner

#16
20170131240
2017-05-11

Acoustic emission system and method for predicting explosions in dissolving tank

#17
20150184339
2015-07-02

Recovery boiler plant of a chemical pulp mill

#18
20130125998
2013-05-23

Cooled smelt restrictor at cooled smelt spout for disrupting smelt flow from the boiler

#19
20110140317
2011-06-16

SHIELDING ARRANGEMENT FOR THE SMELT SPOUT AREA OF A RECOVERY BOILER

#20
20100101463
2010-04-29

Combustion air system for recovery boilers, burning spent liquors from pulping processes

#21
20090025892
2009-01-29

Method to recover chemicals in mechanical pulping

#22
20080199374
2008-08-21

Method for arranging a chemical barrier in a gasifying reactor for black liquor, a chemical gasifying reactor, a barrier layer of a reactor and a method for manufacturing a building block for such a barrier layer

#23
20070272130
2007-11-29

Apparatus for cleaning a smelt spout of a combustion device

#24
20070231231
2007-10-04

Method for reducing nitrogen oxide emissions

#25
20070036695
2007-02-15

Shielding arrangement for the smelt spout area of a recovery boiler

#26
20060157087
2006-07-20

Method and arrangement in connection with a chemical recovery boiler