Producing alpha-hydroxy acids from their ammonium salts comprises heating the ammonium salt in the presence of a tertiary amine to relases gaseous ammonia and recovering the amine by distillation

摘要

Producing alpha-hydroxy acids from their ammonium salts comprises heating the ammonium salt in the presence of a tertiary amine to relases gaseous ammonia and recovering the amine by distillation to release the free acid.