IPC Subgroup
C01B 17/033 using a liquid extractant
Introduced: January 1980
Last revised: January 2006
Full Title
Sulfur; Compounds thereof > Preparation of sulfur; Purification > Recovery of sulfur from material containing elemental sulfur, e.g. luxmasses; Purification > using a liquid extractant
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF