Recovering method of poly methyl methacrylate and poly aluminum sulfate from waste scagliola

摘要

The present invention relates to a method for separating and recovering aluminum polysulfate and PMMA from waste artificial marble, and more specifically, by pretreating waste artificial marble powder with sodium stearate in which sodium hydroxide and stearic acid are mixed, particles of waste artificial marble powder By dispersing the size small, the reaction surface area with sulfuric acid is increased, and the reaction heat with sulfuric acid in the initial reaction is increased as the content of the alkali agent is increased by the sodium stearate. A waste artificial marble that enables efficient recovery of aluminum polysulfate by reaction of aluminum hydroxide with sulfuric acid under high pressure and high temperature conditions, while reducing production costs by implementing excellent recovery efficiency. It relates to a method for separating and recovering aluminum polysulfate and PMMA from from.