ClassID:

84590

C01B17/56 - CPC Classification

Classification description:

Sulfur; Compounds thereof; Sulfur dioxide; Sulfurous acid; Preparation of sulfur dioxide Separation; Purification

Recent Application in this class:
#1
20250320118
2025-10-16

STEAM SULFUROUS MATERIAL REFORMING AND THERMOCHEMICAL CYCLES RELATED THERETO

#2
20230126633
2023-04-27

Integrated method for producing sulphur dioxide quality suitable for a sulphuric acid process from calcium sulphate/phosphogypsum from phosphoric acid production

#3
20230001349
2023-01-05

Improving sulfur recovery operations with processes based on novel COover SOselective membranes and its combinations with SOover COselective membranes

#4
20220250908
2022-08-11

SULFUR DIOXIDE MIXTURE, AND METHOD OF PRODUCING THE SAME, AND FILLING CONTAINER

#5
20200001235
2020-01-02

Desulfurization absorption tower

#6
20190358587
2019-11-28

Desulfurization absorption tower

#7
20190255484
2019-08-22

Method for cleaning viscose production off-gases and catalysts for use in the method

#8
20190209965
2019-07-11

Desulfurization absorption tower

#9
20190060831
2019-02-28

Desulfurization absorption tower

#10
20190001267
2019-01-03

Desulfurization absorption tower

#11
20180117529
2018-05-03

Continuous process and apparatus for purifying SO2-containing gases

#12
20130214202
2013-08-22

Preparation of an amine based solvent contaminated by the introduction of sulfur oxides

#13
20110232487
2011-09-29

APPARATUS FOR PROCESSING EXHAUST GAS IN NONFERROUS SMELTING FACILITIES, AND METHOD FOR PROCESSING EXHAUST GAS IN NONFERROUS SMELTING FACILITIES

#14
20100015040
2010-01-21

Method for separation and recycle of pure sulfur dioxide from a gaseous mixture in is cycle with ionic liquids