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公开(公告)号：US10301243B2
公开(公告)日：2019-05-28
申请号：US15525448
申请日：2015-11-06
Applicant: CAP III B.V.
Inventor： Johan Thomas Tinge , Corinne Daguenet , Iris Verschuren , Wilhelmus Rudolf Maria Martens , Roeland Wilhelmus Theodorus Maria Brands , Robert Jan de Korte
Abstract: An industrial scale continuous process for the production and recovery of cyclohexanone from phenol and hydrogen, said process comprising: hydrogenating phenol in a phenol hydrogenation reactor; separating cyclohexanone from a hydrogenated product stream in a separation and purification section [II] comprising at least 4 distillation sections; wherein at least some of the reaction heat produced in the phenol hydrogenation reaction section [I] is applied for the production of steam; and wherein the molar ratio of cyclohexanone to phenol that is charged to said phenol hydrogenation reactor is from 0.02 to 0.10; and/or wherein the molar ratio of cyclohexanol to phenol that is charged to said phenol hydrogenation reactor is from 0.001 to 0.10.
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公开(公告)号：US09676633B2
公开(公告)日：2017-06-13
申请号：US14425419
申请日：2013-09-12
Applicant: CAP III B.V.
Inventor： Geert Ekkelenkamp , Johan Thomas Tinge , Pieter Vonk
CPC classification number: C01C1/248 , B01D9/0031 , B01D9/0036 , B01D9/0063 , C01C1/24 , C05C3/005
Abstract: The invention relates to a process for preparing a crystalline ammonium sulfate product, which process comprises: a) subjecting in a crystallizer a feed solution of ammonium sulfate to crystallization to form a first slurry of ammonium sulfate crystals; b) subjecting the first slurry of ammonium sulfate crystals to a first size classification to yield a first coarse ammonium sulfate crystal fraction and a first fine ammonium sulfate crystal fraction; c) recycling at least part of the first fine ammonium sulfate crystal fraction to the feed solution of ammonium sulfate; and d) recovering a crystalline ammonium sulfate product from the first coarse ammonium sulfate crystal fraction, characterized in that: e) a second size classification is carried out on a second slurry of ammonium sulfate crystals to yield a second coarse ammonium sulfate crystal fraction and a second fine ammonium sulfate crystal fraction.
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公开(公告)号：US20160159657A1
公开(公告)日：2016-06-09
申请号：US14899579
申请日：2014-06-20
Applicant: CAP III B.V.
Inventor： Johan Thomas Tinge , Geert Ekkelenkamp , Robert Geertman
CPC classification number: C01C1/24 , B01D9/0022 , B01D9/0031 , B01D9/004 , B01D9/0063 , B01D2009/0086 , C01C1/248 , C07C249/08 , C07C2601/14 , C07D201/04 , C07D201/16 , C07C251/44
Abstract: The present invention provides a continuous process for producing ammonium sulfate crystals, wherein said process comprises: (a) feeding to a first group of crystallization sections, which crystallization sections are heat integrated in series, a first aqueous ammonium sulfate solution that contains one or more impurities; (b) feeding to a second group of crystallization sections, which crystallization sections are heat integrated in series, a second aqueous ammonium sulfate solution that contains one or more impurities; (c) crystallizing ammonium sulfate crystals in each crystallization section respectively from each of said solutions of ammonium sulfate that contain one or more impurities; (d) purging a fraction of the ammonium sulfate solution that contains one or more impurities from each of said crystallization sections; and (e) discharging ammonium sulfate crystals from each crystallization section, characterized in that: (i) both the first group of crystallization sections and the second group of crystallization sections are together heat integrated in one series of crystallization sections; wherein the first group of crystallization sections operates at higher temperature than the second group of crystallization sections; and (ii) the composition of the first aqueous ammonium sulfate solution that contains one or more impurities is different to the composition of the second aqueous ammonium sulfate solution that contains one or more impurities. Further provided is apparatus suitable for producing ammonium sulfate crystals.
Abstract translation: 本发明提供了一种用于生产硫酸铵晶体的连续方法，其中所述方法包括：（a）将第一组结晶部分进料到该第一组结晶部分，该结晶部分是串联的热积分法，第一组硫酸铵水溶液含有一种或多种 杂质; （b）将第二组结晶部分进料到该第二组结晶部分，该结晶部分串联加热一体化，含有一种或多种杂质的第二硫酸铵溶液; （c）分别从含有一种或多种杂质的所述硫酸铵溶液中分别在每个结晶段中结晶硫酸铵晶体; （d）从每个所述结晶部分清洗含有一种或多种杂质的硫酸铵溶液的一部分; 和（e）从每个结晶部分排出硫酸铵晶体，其特征在于：（i）第一组结晶部分和第二组结晶部分一起热集成在一系列结晶部分中; 其中所述第一组结晶段在比所述第二组结晶段更高的温度下操作; 和（ii）含有一种或多种杂质的第一硫酸铵水溶液的组成与含有一种或多种杂质的第二硫酸铵水溶液的组成不同。 还提供了适用于生产硫酸铵晶体的装置。
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