发明名称 Method of recovering terephtalic acid and ethylene glycol for poliethylene terephtalate wastes
摘要 A subject of the invention is the method of recovery of terephthalic acid and ethylene glycol from poly/ethylene terephthalate/wastes. According to the invention poly/ethylene terephthalate/ is heated in an aqueous solution at the temperature from 150° C. to 280° C. with a reagent substance, chosen from the group, comprising bicarbonates of ammonia and alkali metals, ammonium carbamate and urea, which substances are used in amounts not less than a stoechiometric amount.
申请公布号 PL191565(B1) 申请公布日期 2006.06.30
申请号 PL19970334658 申请日期 1997.12.02
申请人 SMUDA HEINRICH 发明人 SMUDA HEINRICH
分类号 C07C51/09;C07C51/487;C07C27/02;C07C29/09;C07C31/20;C07C63/26 主分类号 C07C51/09
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