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公开(公告)号：US07550065B2
公开(公告)日：2009-06-23
申请号：US11111572
申请日：2005-04-21
申请人： Majid Keyvani , Jude T. Ruszkay , Edward P. Carey
发明人： Majid Keyvani , Jude T. Ruszkay , Edward P. Carey
CPC分类号： C08F6/005 , C08J11/02 , C08J2351/06 , C08L51/06
摘要： A method for recovering a solvent from its mixture containing oligomers extracted from grafted polyolefins is disclosed. The method includes distilling the solvent from the mixture in the presence of a naphthalene compound. The method of the invention significantly increases the solvent recovering yield without causing the vessel fouling.
摘要翻译： 公开了从其接枝聚烯烃提取的含有低聚物的混合物中回收溶剂的方法。 该方法包括在萘化合物的存在下从混合物中蒸馏出溶剂。 本发明的方法显着提高了溶剂回收率，而不会造成船体污染。
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公开(公告)号：US5962728A
公开(公告)日：1999-10-05
申请号：US961800
申请日：1997-10-31
IPC分类号： C07C263/20 , C07C265/14 , C07C263/18
CPC分类号： C07C263/20 , C07C2101/14
摘要： The present invention relates to a process for isolating aliphatic isocyanate monomer(s) from a liquid or viscous paste composition comprising polymeric isocyanate residues and the aliphatic isocyanate monomer(s), and for isolating solid polymeric isocyanate residue from said composition. Also disclosed is the aliphatic isocyanate monomer(s) and the solid polymeric isocyanate byproduct produced by this process.
摘要翻译： 本发明涉及一种从包含聚合异氰酸酯残基和脂族异氰酸酯单体的液体或粘性糊组合物中分离脂族异氰酸酯单体并用于从所述组合物中分离固体聚异氰酸酯残基的方法。 还公开了通过该方法生产的脂族异氰酸酯单体和固体聚合异氰酸酯副产物。
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公开(公告)号：US20060237299A1
公开(公告)日：2006-10-26
申请号：US11111572
申请日：2005-04-21
申请人： Majid Keyvani , Jude Ruszkay , Edward Carey
发明人： Majid Keyvani , Jude Ruszkay , Edward Carey
IPC分类号： B01D3/34
CPC分类号： C08F6/005 , C08J11/02 , C08J2351/06 , C08L51/06
摘要： A method for recovering a solvent from its mixture containing oligomers extracted from grafted polyolefins is disclosed. The method comprises distilling the solvent from the mixture in the presence of a naphthalene compound. The method of the invention significantly increases the solvent recovering yield without causing the vessel fouling.
摘要翻译： 公开了从其接枝聚烯烃提取的含有低聚物的混合物中回收溶剂的方法。 该方法包括在萘化合物的存在下从混合物中蒸馏出溶剂。 本发明的方法显着提高了溶剂回收率，而不会造成船体污染。
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公开(公告)号：US5693862A
公开(公告)日：1997-12-02
申请号：US769255
申请日：1996-12-18
申请人： Majid Keyvani , Rekha Menon , James L. Meyer , Thomas W. Offill
发明人： Majid Keyvani , Rekha Menon , James L. Meyer , Thomas W. Offill
IPC分类号： C07C209/90
CPC分类号： C07C209/90
摘要： The present invention is directed to a process for transporting toluenediamine (TDA) from a first site to a second site. The process of the invention comprises the steps of (a) providing a molten mass of TDA isomers at the first site; (b) cooling the molten mass to a temperature below the melting point, the molten mass thereby forming flowable particles of solid TDA in an inert gas; (c) providing an airtight storage vessel lined with a chemically inert liner; (d) storing the flowable particles of solid TDA in the lined storage vessel; (e) charging the storage vessel with inert gas; (f) transporting the storage vessel from the first site to the second site; and (g) remelting the TDA flowable particles in inert gas with TDA liquid that is superheated above the melting point to produce a molten TDA isomer mixture in inert gas having substantially the same isomer ratio as that of the molten mass. Also disclosed is a process for storing TDA in a cost-effective manner while reducing the likelihood of TDA degradation during storage, relative to conventional TDA storage methods.
摘要翻译： 本发明涉及将甲苯二胺（TDA）从第一部位输送至第二部位的方法。 本发明的方法包括以下步骤：（a）在第一个位置提供一种TDA异构体的熔融物质; （b）将熔融物料冷却到低于熔点的温度，从而在惰性气体中形成固体TDA的可流动颗粒; （c）提供衬有化学惰性衬垫的密封储存容器; （d）将固体TDA的可流动颗粒储存在衬里的储存容器中; （e）用惰性气体对储存容器充电; （f）将储存容器从第一地点运送至第二地点; 和（g）将TDA可流动颗粒与过熔度高于熔点的TDA液体在惰性气体中重熔，以产生与熔融物质具有基本相同异构体比例的惰性气体中的熔融TDA异构体混合物。 还公开了相对于传统的TDA存储方法，在降低存储期间TDA劣化的可能性的同时以成本有效的方式存储TDA的过程。
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