Process for removing acid metacru00eclico from stage lu00ecquida P, which includes acid acrylic paint as a main constituent and the product target and metacru00eclico acid as a secondary component

摘要

Process for removing acid metacru00eclico from stage lu00ecquida P, comprising acrylic acid as a main constituent and the product target and metacru00eclico acid as a secondary component. And disclosed a process to remove methacrylic acid from a liquid phase (P) containing acrylic acid as a main component and product target and methacrylic acid as a secondary component.According to this process, the methacrylic acid is eliminated using - crystallization, the acrylic acid which accumulates in the crystallized product formed and the methacrylic acid which accumulates in the mother liquor remaining.