Plural Alkyl Groups, Or Hydrogen And An Alkyl Group, Bonded Directly To The Sulfate Group, Wherein The Hydrogen May Be Replaced By Substituted Or Unsubstituted Ammonium, Or By A Group Ia Or Iia Light Metal (e.g., Ethyl Hydrogen Sulfate, Methyl Ammonium Sulfate, Diethyl Sulfate, Etc.) Patents (Class 558/38)
- Heavy metal containing material utilized (e.g., as catalyst, promoter, etc.) (Class 558/40)
- Reactant contains alcoholic -OH group (wherein H of -OH may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal) (Class 558/41)
- Reactant contains acyclic or alicyclic carbon to carbon double bond (Class 558/42)
- Purification or recovery (Class 558/43)