Process for recovering phthalic anhydride and hydrogen chloride from
plastic materials
    3.
    发明授权
    Process for recovering phthalic anhydride and hydrogen chloride from plastic materials 失效
    从塑料材料中回收邻苯二甲酸酐和氯化氢的方法

    公开(公告)号:US5686055A

    公开(公告)日:1997-11-11

    申请号:US362270

    申请日:1994-12-22

    CPC分类号: C07C51/56 C07C63/16

    摘要: There is provided a process to recover phthalic anhydride from a plastic material which contains a phthalate ester as a plasticizer comprising the steps of: (a) heating the plastic material so that the plastic material is gasified to produce a first product, (b) contacting the first product with alumina catalyst so that the product is catalytically cracked to produce a first catalytically cracked product comprising phthalic anhydride; and (c) recovering phthalic anhydride from the first catalytically cracked product.

    摘要翻译: 提供了从包含邻苯二甲酸酯作为增塑剂的塑料材料回收邻苯二甲酸酐的方法,其包括以下步骤:(a)加热塑料材料,使塑料材料气化以产生第一产品,(b)接触 第一产品具有氧化铝催化剂,使得产物被催化裂化以产生包含邻苯二甲酸酐的第一催化裂化产物; 和(c)从第一催化裂化产物中回收邻苯二甲酸酐。

    Process of recovering useful material through cracking of plastic
material
    4.
    发明授权
    Process of recovering useful material through cracking of plastic material 失效
    通过塑料材料开裂回收有用材料的工艺

    公开(公告)号:US5895827A

    公开(公告)日:1999-04-20

    申请号:US881355

    申请日:1997-06-24

    CPC分类号: C07C51/56 C07C63/16

    摘要: There is provided a process to recover phthalic anhydride from a plastic material which contains a phthalate ester as a plasticizer comprising the steps of:(a) heating the plastic material so that the plastic material is gasified to produce a first product,(b) contacting the first product with alumina catalyst so that the product is catalytically cracked to produce a first catalytically cracked product comprising phthalic anhydride; and(c) recovering phthalic anhydride from the first catalytically cracked product.

    摘要翻译: 提供了从包含邻苯二甲酸酯作为增塑剂的塑料材料回收邻苯二甲酸酐的方法,其包括以下步骤:(a)加热塑料材料,使塑料材料气化以产生第一产品,(b)接触 第一产品具有氧化铝催化剂,使得产物被催化裂化以产生包含邻苯二甲酸酐的第一催化裂化产物; 和(c)从第一催化裂化产物中回收邻苯二甲酸酐。