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    • 1. 发明授权
    • Treatment of bisphenol-A residue streams
    • 双酚A残留物流的处理
    • US09255053B2
    • 2016-02-09
    • US13487872
    • 2012-06-04
    • David P. PalmerSteven D. EvittStephen W. FetskoChung-Ming Chi
    • David P. PalmerSteven D. EvittStephen W. FetskoChung-Ming Chi
    • C07C37/72C07C37/52C07C37/20C07C45/51
    • C07C37/52C07C37/20C07C37/72C07C45/51C07C39/04C07C39/16C07C49/08
    • In a method of treating a residue stream from the production of bisphenol-A, the residue stream is contacted with an aqueous solution of a base under conditions effective to hydrolyze at least part of said residue stream into acetone and phenol and produce an effluent stream. Acetone is recovered from the effluent stream to produce a phenol-containing mixed phase stream which is substantially free of acetone and which contains water and unhydrolyzed heavy organic compounds. The phenol-containing mixed phase stream is then treated with a water-immiscible organic solvent to extract phenol and unhydrolyzed heavy organic compounds into said solvent and produce an organic phase containing the solvent, phenol and unhydrolyzed heavy aromatic compounds and an aqueous phase with reduced concentrations of phenol and unhydrolyzed heavy organic compounds. At least part of the phenol and the organic solvent are subsequently recovered from the organic phase.
    • 在从生产双酚A处理残余物流的方法中,将残余物流与碱的水溶液接触,在有效地将至少部分所述残余物流水解成丙酮和苯酚并产生流出物流的条件下进行。 从流出物流中回收丙酮以产生基本上不含丙酮并含有水和未水解的重质有机化合物的含苯酚混合物流。 然后用与水不混溶的有机溶剂处理含苯酚的混合物流,将苯酚和未水解的重质有机化合物提取到所述溶剂中,并产生含有溶剂,苯酚和未水解的重芳族化合物的有机相和浓度降低的水相 的酚和未水解的重质有机化合物。 随后从有机相中回收至少部分的苯酚和有机溶剂。
    • 2. 发明授权
    • Bisphenol-A plant yield enhancement
    • 双酚A植物产量提高
    • US08039679B2
    • 2011-10-18
    • US12066630
    • 2006-08-24
    • Steven D. EvittStephen W. FetskoChung-Ming Chi
    • Steven D. EvittStephen W. FetskoChung-Ming Chi
    • C07C37/74C07C37/20
    • C07C45/53C07C2/66C07C37/20C07C37/72C07C37/74C07C37/84C07C407/00C07C409/10Y02P20/127C07C15/085C07C49/08C07C39/16
    • An improved process is provided for producing bisphenol-A (BPA) comprising steps of (1) contacting benzene and a C3 alkylating agent to produce an alkylation effluent comprising cumene; (2) oxidizing the cumene to produce the corresponding hydroperoxide; (3) cleaving the hydroperoxide to produce product comprising phenol and acetone; (4) reacting acetone with phenol to form a reaction product stream comprising crude bisphenol-A product; (5) distilling the reaction product stream, while sending downstream to a BPA-phenol adduct crystallization and purification step, the resulting concentrated BPA phenolic feed stream; (6) producing BPA-phenol adduct crystals by crystallization of the concentrated BPA phenolic feed stream; (7) separating the BPA-phenol adduct crystals by solid-liquid separationr; (8) cracking a stream comprising at least a portion of said final mother liquor to recover a product; and (9) recovering and feeding the phenol product of step (8) to step (4) and/or step (7).
    • 提供用于生产双酚-A(BPA)的改进方法,包括以下步骤:(1)使苯和C3烷基化剂接触以产生包含枯烯的烷基化流出物; (2)氧化枯烯以产生相应的氢过氧化物; (3)切割氢过氧化物以产生包含苯酚和丙酮的产物; (4)使丙酮与苯酚反应形成包含粗双酚-A产物的反应产物流; (5)蒸馏反应产物流,同时向下游送入BPA-苯酚加合物结晶和纯化步骤,得到浓缩的BPA酚类进料流; (6)通过浓缩的BPA酚类进料流的结晶生产BPA-苯酚加合物晶体; (7)通过固液分离器分离BPA-苯酚加合物晶体; (8)裂化含有至少一部分所述最终母液的物流以回收产物; 和(9)将步骤(8)的苯酚产物回收和进料至步骤(4)和/或步骤(7)。
    • 4. 发明申请
    • PROCESS FOR PRODUCING CUMENE
    • 生产过程的方法
    • US20110201858A1
    • 2011-08-18
    • US13119789
    • 2009-09-23
    • Shyh-Yuan Henry HwangDana E. JohnsonJoseph C. PetersChung-Ming ChiKevin J. FallonFrancis A. Demers
    • Shyh-Yuan Henry HwangDana E. JohnsonJoseph C. PetersChung-Ming ChiKevin J. FallonFrancis A. Demers
    • C07C2/00
    • C07C409/10C07C2/66C07C2/864C07C29/145C07C37/08C07C45/53C07C407/00C07C2529/08C07C2529/18C07C2529/40C07C2529/65C07C2529/70C07C15/085C07C31/10C07C49/08C07C39/04
    • In a process for producing cumene from acetone and benzene, a feed stream comprising acetone is contacted with hydrogen in the presence of a hydrogenation catalyst in a first reaction zone under hydrogenation conditions sufficient to convert at least part of the acetone to isopropanol and produce a first liquid effluent stream rich in isopropanol and a first vapor stream rich in unreacted hydrogen. Benzene is then added to at least part of the first liquid effluent stream, without intermediate purification of the first liquid effluent stream, and optionally to at least part of the first vapor stream, to form a second feed stream. The second feed stream is then contacted with an alkylation catalyst in a second reaction zone separate from the first reaction zone under alkylation conditions sufficient to maintain at least part of the second feed stream in the liquid phase and to cause at least part of the isopropanol in the second feed stream to react with the benzene to form cumene and water and produce a second effluent stream comprising at least cumene, water and unreacted benzene. Hydrogen is separated from the first vapor stream and/or the second effluent stream. At least part of the hydrogen is recycled to the first reaction zone and/or purged from the system.
    • 在从丙酮和苯生产异丙基苯的方法中,在氢化条件下,在氢化催化剂存在下,将含丙酮的进料流与氢气接触,在氢化条件下,将至少部分丙酮转化成异丙醇,并产生第一 富含异丙醇的液体流出物流和富含未反应氢的第一蒸气流。 然后将苯添加到至少部分第一液体流出物流中,而不用第一液体流出物流的中间纯化,以及任选地至少部分第一蒸气流,形成第二进料流。 然后在足以将至少部分第二进料流保持在液相中并使至少部分异丙醇在烷基化条件下与第一反应区分离的第二反应区中的第二进料流与烷基化催化剂接触 所述第二进料流与苯反应以形成异丙基苯和水,并产生包含至少异丙基苯,水和未反应的苯的第二流出物流。 氢气与第一蒸气流和/或第二流出物流分离。 至少部分氢被再循环到第一反应区和/或从系统中清除。
    • 6. 发明授权
    • Alkylaromatics production
    • 烷基芳烃生产
    • US07745676B2
    • 2010-06-29
    • US11881921
    • 2007-07-30
    • Michael C. ClarkVijay NandaMaruti BhandarkarJoseph C. PetersChung-Ming ChiBrian Maerz
    • Michael C. ClarkVijay NandaMaruti BhandarkarJoseph C. PetersChung-Ming ChiBrian Maerz
    • C07C2/66
    • C07C2/66C07C15/073C07C15/02
    • A process is described for producing an alkylaromatic compound, in which a first feed comprising an alkylatable aromatic compound and a second feed comprising an alkene are introduced into a first alkylation reaction zone comprising a first alkylation catalyst. The first alkylation reaction zone is operated under conditions effective to cause alkylation of the alkylatable aromatic compound by the alkene to produce said alkylaromatic compound, the conditions being such that the alkylatable aromatic compound is at least predominantly in the vapor phase. A first effluent comprising the alkylaromatic compound and unreacted alkylatable aromatic compound is withdrawn from the first alkylation reaction zone and at least part of the unreacted alkylatable aromatic compound is treated to remove catalyst poisons therefrom and produce a treated unreacted alkylatable aromatic stream. At least part of the unreacted alkylatable aromatic compound and a third feed comprising said alkene is introduced into a second alkylation reaction zone comprising a second alkylation catalyst. The second alkylation reaction zone is operated under conditions effective to cause alkylation of the unreacted alkylatable aromatic compound by the alkene to produce said alkylaromatic compound, the conditions being such that the alkylatable aromatic compound is at least predominantly in the liquid phase. A second effluent comprising said alkylaromatic compound is withdrawn from the second alkylation reaction zone.
    • 描述了用于生产烷基芳族化合物的方法,其中将包含可烷基化芳族化合物的第一种进料和包含烯烃的第二种进料引入到包含第一烷基化催化剂的第一烷基化反应区中。 第一烷基化反应区在有效使烷基化芳族化合物被烯烃烷基化以产生所述烷基芳族化合物的条件下运行,条件是使可烷基化芳族化合物至少主要在气相中。 包含烷基芳族化合物和未反应的可烷基化芳族化合物的第一流出物从第一烷基化反应区取出,并且处理至少部分未反应的可烷基化芳族化合物以除去其中的催化剂毒物并产生经处理的未反应的可烷基化芳族物流。 将至少部分未反应的可烷基化芳族化合物和包含所述烯烃的第三进料引入到包含第二烷基化催化剂的第二烷基化反应区中。 第二烷基化反应区在有效使得未反应的可烷基化芳族化合物被烯烃烷基化以产生所述烷基芳族化合物的条件下运行,条件是使可烷基化芳族化合物至少主要在液相中。 从第二烷基化反应区取出包含所述烷基芳族化合物的第二流出物。