B01D2251/50 - CPC Classification Index

ClassID:

30280 ⎘

B01D2251/50 - CPC Classification

Classification description:

Reactants Inorganic acids

Sub-classes:

B01D2251/502 » Hydrochloric acid 54
B01D2251/504 » Nitric acid 24
B01D2251/506 » Sulfuric acid 55
B01D2251/508 » Sulfur dioxide 19
B01D2251/51 » Hydrogen sulfide 12
B01D2251/512 » Phosphoric acid 17

Recent Application in this class:

20220347621

2022-11-03

SYSTEMS AND METHODS FOR REMOVING ODOR FROM A FLUID STREAM

20210260524

2021-08-26

Method for fixing carbon dioxide, method for producing fixed carbon dioxide, and fixed carbon dioxide production apparatus

20210238058

2021-08-05

Systems and methods for removing ammonia from an ammonia-containing liquid

20200261841

2020-08-20

AMMONIA REMOVAL EQUIPMENT, AMMONIA REMOVAL METHOD, AND HYDROGEN GAS PRODUCTION METHOD

20190388823

2019-12-26

Submicron particle removal from gas streams

20190366263

2019-12-05

Method and apparatus for purification and treatment of air

20190299122

2019-10-03

Quench column aftercooler

20190224610

2019-07-25

Submicron particle removal from gas streams

20180096836

2018-04-05

Substrate processing device

#10

20180001252

2018-01-04

Method and device for treating nitroso compound

#11

20170369345

2017-12-28

Process and plant for separating off and/or recovering nitrogen compounds from a liquid or sludge substrate

#12

20170320816

2017-11-09

Submicron particle removal from gas streams

#13

20170158586

2017-06-08

Hydrochloric acid purification process

#14

20170106333

2017-04-20

Method and apparatus for purification and treatment of air

#15

20170050145

2017-02-23

Complexation and removal of mercury from flue gas desulfurization systems

#16

20160332108

2016-11-17

Process, method, and system for removing mercury from fluids

#17

20160256817

2016-09-08

Systems for recovering ammonia

#18

20150265963

2015-09-24

Methods and systems for recovering ammonia

#19

20150132210

2015-05-14

Gaseous ammonia removal method

#20

20150125353

2015-05-07

Air pollution control apparatus

#21

20140127119

2014-05-08

Carbon dioxide absorber and carbon dioxide separation/recovery method using the absorber

#22

20120189528

2012-07-26

Process and apparatus for recovering ammonia from a gas stream

#23

20120137744

2012-06-07

Acid-impregnated activated carbon and methods of forming and using the same

#24

20110256046

2011-10-20

Process for producing ammonium salts

#25

20110256045

2011-10-20

Process for producing ammonium salts

#26

20110229403

2011-09-22

Gaseous ammonia removal system

#27

20110064635

2011-03-17

Method for reducing aerosol emissions in a urea granulation plant

#28

20100037777

2010-02-18

Inlet air conditioning system for a turbomachine

#29

20080047313

2008-02-28

Acid-impregnated activated carbon and methods of forming and using the same

#30

20070186769

2007-08-16

Equipment and method for removing nitrogen oxide

#31

20070003457

2007-01-04

Complex shaped fiber for particle and molecular filtration

#32

20050217488

2005-10-06

Adsorption filter and manufacturing method thereof

#33

20050214188

2005-09-29

Complex shaped fiber for particle and molecular filtration

#34

15248670

2020-07-07

Odor filter