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2. The process of extraction, quantification and recovery of polypropylene additives with biodegradable natural solvents and the utilization of polypropylene extracted from multiple extraction
2. The process of extraction, quantification and recovery of polypropylene additives with biodegradable natural solvents and the utilization of polypropylene extracted from multiple extraction
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机译：2.用可生物降解的天然溶剂提取，定量和回收聚丙烯添加剂的过程以及多次提取聚丙烯的利用
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摘要
The object of the invention is to extract, quantify and recycle polypropylene additive, which is characterized in that the cleaning stage (a) of plastic material is included,1. Grind material (a) to a particle size between 10 and 500 microns, in which case material (a) goes to column (1) and then to column (2) in turn,Column (3) and column (4) for continuous solvent extraction (I),Page: 1(III) and (IV),1. Package extraction in columns, in which solvent and additives extracted from each column (1),(2)(3) and (4) by means of a packing column (1 ',(2',1.2.1.1 (3 ') and (4', respectively, are the crystallization (1 ') of the additive obtained after each extraction stage in the packing column,(2',(3 ') and (4') respectively; the obtained additives were quantified and the residue without additives was decomposed at high temperature.
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