C01B17/506 - CPC Classification Index

ClassID:

84585 ⎘

C01B17/506 - CPC Classification

Classification description:

Sulfur; Compounds thereof; Sulfur dioxide; Sulfurous acid; Preparation of sulfur dioxide by reduction of sulfur compounds of calcium sulfates

Recent Application in this class:

20240100579

2024-03-28

RESOURCE RECOVERY METHOD AND RESOURCE RECOVERY SYSTEM OF DESULFURIZED ASH

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

20200377375

2020-12-03

Phosphogypsum decomposition process

20050100503

2005-05-12

Method of decomposing gypsum to sulfur dioxide and the apparatus thereof