Polishing of reaction solutions, catalyst recovery, decolorization.
Clarification of reaction solutions or catalyst recovery.
Removal of activated carbon containing adsorbed organic volatiles.
Recovery of intermediates, clarification of process liquids.
Catalyst recovery after hydrogenation steps.
Washing and purification of product, clarification of solutions.
Filtration of crude and clean esters to remove alkaline salts, pigments and activated carbon.
Clarification of solutions, catalyst removal.
Removal of Ca(OH)2 after product neutralization reactions as well as for the recovery of catalyst after hydrogenation production of C5/C9 petroleum resins.
Recovery of noble metal hydrogenation catalyst in the production of PPD.
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