PROCESS FOR REMOVAL OF HYDROXYACETONE FROM PHENOL
    1.
    发明申请
    PROCESS FOR REMOVAL OF HYDROXYACETONE FROM PHENOL 审中-公开
    从苯酚中除去羟基酮的方法

    公开(公告)号:US20070244346A1

    公开(公告)日:2007-10-18

    申请号:US11736531

    申请日:2007-04-17

    CPC classification number: C07C37/08 C07C39/04

    Abstract: The present invention relates to method for producing phenol which includes: a) oxidizing cumene to form an oxidation product containing cumene hydroperoxide; b) cleaving the oxidation product using an acidic catalyst to form a cleavage product containing phenol, acetone and impurities; c) neutralizing and washing the cleavage product with a basic aqueous medium to obtain a neutralized cleavage product; d) separating the neutralized cleavage product by at least one distillation step into at least a phenol containing fraction and an aqueous fraction comprising hydroxyacetone; e) treating the aqueous fraction with an oxidizing agent in presence of a base to obtain a basic aqueous medium reduced in hydroxyacetone; f) recycling at least a portion of the basic aqueous medium to the neutralizing and washing step c); and g) recovering phenol from the phenol containing fraction obtained in step d).

    Abstract translation: 本发明涉及苯酚的制备方法,其包括:a)氧化枯烯以形成含有氢过氧化枯烯的氧化产物; b)使用酸性催化剂切割氧化产物以形成含有苯酚,丙酮和杂质的裂解产物; c)用碱性水性介质中和洗涤裂解产物以获得中和的裂解产物; d)将中和的裂解产物通过至少一个蒸馏步骤分离成至少含苯酚的级分和包含羟基丙酮的含水级分; e)在碱的存在下用氧化剂处理含水部分以获得羟基丙酮中还原的碱性水性介质; f)将至少一部分碱性水性介质再循环到中和和洗涤步骤c)中; 和g)从在步骤d)中获得的含苯酚馏分中回收苯酚。

    Process for the preparation of phenolic compounds, for separating phenol from cleavage product mixtures, and an apparatus
    2.
    发明申请
    Process for the preparation of phenolic compounds, for separating phenol from cleavage product mixtures, and an apparatus 有权
    酚类化合物的制备方法,用于从分离产物混合物中分离苯酚和设备

    公开(公告)号:US20050034970A1

    公开(公告)日:2005-02-17

    申请号:US10888533

    申请日:2004-07-09

    Abstract: To improve energy efficiency of prior art processes while preserving the standards of quality and total yield of desired end products, a process for the preparation of phenolic compounds is proposed. The process of the invention comprises working-up of the cleavage product mixtures by distillation, which comprises resolving the cleavage product mixture into at least three fractions in a single distillation step by feeding the cleavage product mixture to the side of a distillation column, removing a first fraction comprising the ketone at the top of the distillation column, removing a second fraction comprising the phenolic compound at the bottom of the distillation column, and removing a third fraction comprising unreacted the alkylaryl compound and the hydroxy ketone, and water, as side stream, whereby the side stream take-off is situated above the feed of cleavage product mixture to the distillation column, characterized by removing heat from the distillation column, whereby the heat take-off is situated above the side stream take-off of the third fraction, and a process for separating phenol from cleavage product mixtures, wherein the cleavage product mixture prior feeding into the distillation column, is preheated to a temperature of above 70° C. at standard pressure, preferably to a temperature of above 100° C., more preferably to a temperature between 110° C. and 180° C., most preferred to a temperature of about 140° C. to 146° C., and an apparatus suitable therefore.

    Abstract translation: 为了提高现有技术工艺的能量效率,同时保持所需最终产品的质量和总产量的标准,提出了制备酚类化合物的方法。 本发明的方法包括通过蒸馏处理裂解产物混合物,其包括在单一蒸馏步骤中将裂解产物混合物分解成至少三个级分,将裂解产物混合物加入到蒸馏塔的侧面,除去 在蒸馏塔顶部包含酮的第一馏分,在蒸馏塔的底部除去包含酚类化合物的第二级分,并除去包含未反应的烷基芳基化合物和羟基酮的第三馏分和水作为侧流 ,由此侧流起飞位于裂解产物混合物的进料到蒸馏塔的上方,其特征在于从蒸馏塔除去热量,由此该热量取出位于第三馏分的侧流起飞之上 以及从裂解产物混合物中分离苯酚的方法,其中先前加入的裂解产物混合物 蒸馏塔在标准压力下预热至高于70℃的温度,优选至高于100℃的温度,更优选至110℃至180℃的温度,最优选为 温度为约140℃至146℃,因此适用的装置。

    Process for the cleavage of alkylaryl hydroperoxides

    公开(公告)号:US06444861B1

    公开(公告)日:2002-09-03

    申请号:US09978718

    申请日:2001-10-18

    CPC classification number: C07C37/08 Y02P20/52 Y02P20/582 C07C39/04

    Abstract: A process for the cleavage of alkylaryl hydroperoxides includes steps for producing a mixture of a concentrate that contains at least one alkylaryl hydroperoxide to be cleaved and a cleavage product obtained from the cleavage of an alkylaryl hydroperoxide, dividing this mixture into at least two parts and cleaving the alkylaryl hydroperoxides in parallel at different temperatures. One of the two parts is treated at a temperature sufficiently high for an integrated thermal post-treatment to be achieved. The process consumes less energy since less steam has to be used. Problems which can result from fouling in heat exchangers are largely prevented. No second feed point for alkylaryl hydroperoxide has to be provided. The process can be used in the preparation of phenol and acetone by the Hock method.

    Process for treating phenol
    5.
    发明授权
    Process for treating phenol 有权
    苯酚处理方法

    公开(公告)号:US07544845B2

    公开(公告)日:2009-06-09

    申请号:US11736507

    申请日:2007-04-17

    Abstract: The present invention relates to a continuous method for treating a crude phenol stream comprising methylbenzofuran and hydroxyacetone by passing the crude phenol stream through at least two reactors connected in series the reactors containing an acidic ion exchange resin, whereby the temperature in successive reactors decreases in flow direction of the phenol stream so that the temperature in the first reactor in flow direction of the phenol stream is between 100° C. and 200° C. and the temperature in the last reactor in flow direction of the phenol stream is between 50° C. and 90° C. without a thermal separation step between any of two successive reactors and to the use of this method in a process for making phenol.

    Abstract translation: 本发明涉及通过使粗苯酚流通过串联连接的含有酸性离子交换树脂的反应器的至少两个反应器来处理包含甲基苯并呋喃和羟基丙酮的粗苯酚流的连续方法,由此连续反应器中的温度降低流动 苯酚流的方向,使得苯酚流的流动方向上的第一反应器中的温度在100℃和200℃之间,并且最后的反应器中苯酚流的流动方向的温度为50℃ 和90℃,在两个连续的反应器中的任一个之间没有热分离步骤,并且在制备苯酚的方法中使用该方法。

    Device for external cleaning of ship's hulls
    7.
    发明授权
    Device for external cleaning of ship's hulls 有权
    船体外部清洗装置

    公开(公告)号:US6067921A

    公开(公告)日:2000-05-30

    申请号:US171630

    申请日:1998-10-22

    Applicant: Manfred Weber

    Inventor: Manfred Weber

    CPC classification number: B63B59/08

    Abstract: In order to be able to dispense with the time-consuming and expensive manual cleaning of ship's hulls (4), a cleaning installation is proposed which consists of at least one cleaning roller (2, 3) which can be driven to rotate, is rotatably mounted in a rack (1) and whose roller structures are positioned at least partially below the surface of the water.

    Abstract translation: PCT No.PCT / DE97 / 00834 Sec。 371日期:1998年10月22日 102(e)日期1998年10月22日PCT 1997年4月25日PCT PCT。 出版物WO97 / 41026 日期1997年11月6日为了能够省去对船体(4)的耗时和昂贵的手动清理(4),提出了一种清洁装置,其包括至少一个可以被驱动的清洁辊(2,3) 旋转,可旋转地安装在齿条(1)中,并且其辊结构至少部分地位于水表面下方。

    Low flammability carpet floor covering
    9.
    发明授权
    Low flammability carpet floor covering 失效
    低可燃性地毯地毯

    公开(公告)号:US5486398A

    公开(公告)日:1996-01-23

    申请号:US127644

    申请日:1993-09-28

    Abstract: There is described a low flammability carpet floor covering comprising a backing material, a tied-in pile yarn, and a back finish, wherein the pile yarn comprises low flammability synthetic fibers, the backing material comprises normal or low flammability synthetic fibers, and the back finish comprises a polyurethane composed of the radicals of the formulae I to VII:--CO--A1--CO-- (I)--CO--A2--CO-- (II)(--O--).sub.n --A3--(COOH).sub.m (III)--O--B1--O-- (IV)--O--B2--(O--).sub.p (V)--NH--C1--NH-- (VI)--CO--NH--D1--NH--CO-- (VII)where the proportions of the radicals I to III, based on their total amount, are within the following limits:I: 40 to 80 mol %,II: 10 to 40 mol %,III: 0 to 25 mol %,the proportions of the radicals IV, V and VI, based on their total amount, are within the following limits:IV: 65 to 95 mol %,V: 0 to 19 mol %,VI: 3 to 16 mol %,the radicals of the formulae I, II and IV are polyester blocks having an average molecular weight of from 400 to 6000 and the proportions of the radicals of the formula VII, based on the total amount of all the components of the polyurethane resin, are from 5 to 35 mol %, preferably from 10 to 25 mol %, and a process for producing the low flammability carpet floor covering.There is further described an aqueous composition comprising this polyurethane resin and the use thereof for textile finishing.

    Abstract translation: 描述了一种低可燃性地毯覆盖物,其包括背衬材料,捆扎绒毛纱线和背部涂饰,其中绒头纱线包含低可燃性合成纤维,背衬材料包括正常或低可燃性合成纤维,背面 包括由式I至VII的基团组成的聚氨酯:-CO-Al-CO-(I)-CO-A2-CO-(II)(-O-)n-A3-(COOH)m )-O-B1-O-(IV)-O-B2-(O-)p(V)-NH-C1-NH-(VI)-CO-NH-D1-NH-CO-(VII) 基团I至III的比例基于它们的总量在以下限度内:I:40至80mol%,II:10至40mol%,III:0至25mol%,基团IV的比例 ,V和VI基于其总量,在以下限度内:IV:65至95摩尔%,V:0至19摩尔%,VI:3至16摩尔%,式I,II和 IV是平均分子量为400至6000的聚酯嵌段和式VII,碱的基团的比例 关于聚氨酯树脂的全部成分的总量为5〜35摩尔%,优选为10〜25摩尔%,以及低易燃性地毯覆盖层的制造方法。 进一步描述了包含该聚氨酯树脂的水性组合物及其用于织物整理的用途。

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