Selective hydrogenation converts carbonyl compounds to alcohols using a copper catalyst, preserving phenol and alpha-methylstyrene during purification.
Continuous crystallization removes solvent from iodinated aryl compounds, resolving the contradiction between high purity and processing speed.
Synergistic additive composition using amine intermediaries to reduce inhibitor dosage while controlling butadiene polymerization and dimerization.
7-Acetylenic quinone methides inhibit thermal polymerization of vinyl monomers, replacing toxic DNP with safer alternatives that prevent equipment fouling.