Solvent extraction
Solventless process for decontamination of polyacetylene
Styrene caustic wash extraction aid
Sulfolane purification by hydrocarbon extraction
Sulfolane purification method
Treatment of spent refinery caustic
Two-stage quench tower for use with oxygenate conversion...
Unsaturated hydrocarbon separation and recovery process
Unsaturates recovery and recycle process
Use of ionic liquids to separate olefins, diolefins and...