Patents-Review.com
ClassID:

126449 ⎘

D21C11/12 - CPC Classification

Classification description:

Regeneration of pulp liquors or effluent waste waters Combustion of pulp liquors

Sub-classes:
Recent Application in this class:
#1
20250034808
2025-01-30

A GASKET ARRANGEMENT FOR A PROTRUDING BAR OF A BOILER AND A METHOD OF OPERATING THE GASKET ARRANGEMENT

 #2
20230057366
2023-02-23

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

 #3
20220268442
2022-08-25

Determining one or more proportional particle group shares in flue gas of a recovery boiler

 #4
20220186927
2022-06-16

SYSTEM FOR RECOVERING HEAT FROM FLUE GAS, CONTROL ARRANGEMENT FOR USE IN SUCH A SYSTEM AND A METHOD PERFORMED BY SUCH A CONTROL ARRANGEMENT

 #5
20220120036
2022-04-21

Combustion of streams derived from hot water extraction of wood material

 #6
20210071361
2021-03-11

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

 #7
20210010672
2021-01-14

Furnace floor protection in recovery boilers

 #8
20200048832
2020-02-13

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

 #9
20200003410
2020-01-02

BOILER SYSTEM CONTROLLING FUEL TO A FURNACE BASED ON TEMPERATURE OF A STRUCTURE IN A SUPERHEATER SECTION

 #10
20190309474
2019-10-10

Combustion of streams derived from hot water extraction of wood material

 #11
20190119852
2019-04-25

Recover of inorganic chemicals of the pulp and paper making processes using microwaves and related techniques

 #12
20190112759
2019-04-18

SELECTIVE REMOVAL OF K+ AND CL- FROM RECOVERY BOILER ELECTROSTATIC PRECIPITATOR ASHES IN A KRAFT PROCESS

 #13
20190078773
2019-03-14

Arrangement of heat recovery surfaces of a recovery boiler

 #14
20190040577
2019-02-07

Deposit control for a black liquor recovery boiler

 #15
20180363900
2018-12-20

Method for controlling a recovery boiler

 #16
20180313531
2018-11-01

Heat recovery surfaces arrangement in a recovery boiler

 #17
20180193888
2018-07-12

Method and means for recovery boiler outage

 #18
20180180284
2018-06-28

Chemical recovery boiler

 #19
20170306558
2017-10-26

Process for treating black liquor

 #20
20170131240
2017-05-11

Acoustic emission system and method for predicting explosions in dissolving tank

 #21
20170114995
2017-04-27

BOILER SYSTEM CONTROLLING FUEL TO A FURNACE BASED ON TEMPERATURE OF A STRUCTURE IN A SUPERHEATER SECTION

 #22
20170030018
2017-02-02

System and process for pulping wood

 #23
20160289793
2016-10-06

Method for leaching recovery-boiler ash

 #24
20160097528
2016-04-07

Arrangement and method in soda recovery boiler

 #25
20160002853
2016-01-07

Method for recovering chemicals and by-products from high-sulphidity pulping liquors

 #26
20150275427
2015-10-01

Arrangement and method in soda recovery boiler

 #27
20150253003
2015-09-10

Boiler system controlling fuel to a furnace based on temperature of a structure in a superheater section

 #28
20150184339
2015-07-02

Recovery boiler plant of a chemical pulp mill

 #29
20140299584
2014-10-09

Plasma whirl reactor apparatus and methods of use

 #30
20140299459
2014-10-09

Plasma whirl reactor apparatus and methods of use

 #31
20140027076
2014-01-30

Method for recovering pulping chemicals and reducing the concentration of potassium and chloride therein

 #32
20120296066
2012-11-22

Method Of Separating, From A Mixture Of Black Liquor And Tall Oil Soap Product, Concentrated Portions Of Tall Oil Soap Product And Arrangements For Said Concentrated Tall Oil Soap Product And/Or Separated Black Liquor

 #33
20120228118
2012-09-13

METHOD AND EQUIPMENT FOR TREATMENT OF BLACK LIQUOR AT PULP MILL

 #34
20120053720
2012-03-01

Method and a system for optimization of parameters for a recovery boiler

 #35
20110272108
2011-11-10

PROCESS FOR PRODUCING PULP AND AT LEAST ONE ORGANIC LIQUID OR LIQUEFIABLE MATERIAL OF VALUE WITH OFFGAS RECYCLING

 #36
20110248095
2011-10-13

VARIABLE ORIFICE BLACK LIQUOR NOZZLE METHOD AND APPARATUS

 #37
20110240243
2011-10-06

Apparatus for cleaning and/or cooling a liquor gun in a chemical recovery boiler

 #38
20110232688
2011-09-29

Method and device for emptying the floor of a black liquor recovery boiler

 #39
20110226997
2011-09-22

Method And System Of Gasification

 #40
20110120662
2011-05-26

Method and equipment for treatment of black liquor at pulp mill

 #41
20110079364
2011-04-07

Process for Controlling Ammonia Loss

 #42
20100206965
2010-08-19

Adjustable, multiple splash plate liquor guns

 #43
20100189614
2010-07-29

Method for kraft waste reclamation

 #44
20100154691
2010-06-24

HANDLING DEVICE FOR LIQUOR GUNS OF A RECOVERY BOILER PLANT, A RECOVERY BOILER PLANT, AND A METHOD IN A RECOVERY BOILER

 #45
20100044483
2010-02-25

Plasma whirl reactor apparatus and methods of use

 #46
20100044477
2010-02-25

Plasma whirl reactor apparatus and methods of use

 #47
20090272339
2009-11-05

Cooling system for ports in a boiler

 #48
20090266277
2009-10-29

Method and device for emptying the floor of a soda recovery boiler

 #49
20090044767
2009-02-19

Method for expanding a chemical recovery boiler

 #50
20090014137
2009-01-15

Method for cleaning and/or cooling a liquor gun in a chemical recovery boiler

 #51
20080308019
2008-12-18

Recovery boiler plant and a method in a recovery boiler

 #52
20080289782
2008-11-27

RECOVERY PROCESS AND SYSTEM FOR A PULP MILL

 #53
20080006725
2008-01-10

Variable orifice black liquor nozzle

 #54
20070051482
2007-03-08

Method for kraft waste reclamation

 #55
20070042896
2007-02-22

MgAl2O4 spinel refractory as containment liner for high-temperature alkali salt containing environments

 #56
20060288963
2006-12-28

Arrangement in recovery boiler

 #57
20060249098
2006-11-09

Arrangement in recovery boiler

 #58
20060236696
2006-10-26

Apparatus and method for producing energy at a pulp mill

 #59
20060102300
2006-05-18

Alkaline process for the manufacturing of pulp using alkali metaborate as buffering alkali

 #60
20050252624
2005-11-17

Process and apparatus for producing thermal and electric energy

 #61
20050252458
2005-11-17

System for producing energy at a pulp mill

 #62
20050098280
2005-05-12

Alkaline process for the manufacturing of pulp using alkali metaborate as buffering alkali

 #63
20050076568
2005-04-14

Partial oxidation of cellulose spent pulping liquor