IPC Subgroup
C01B 17/5 Preparation of sulfur dioxide
Introduced: September 1968
Last revised: January 2006
Full Title
Sulfur; Compounds thereof > Sulfur dioxide; Sulfurous acid > Preparation of sulfur dioxide
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
5 direct subcodes
Child Classifications
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- C01B 17/52 by roasting sulfides
- C01B 17/54 by burning elemental sulfur
- C01B 17/56 Separation; Purification
- C01B 17/58 Recovery of sulfur dioxide from acid tar or the like
- C01B 17/6 Isolation of sulfur dioxide from gases