COMPOSITION PREVENTING THE POLYMERIZATION OF ETHYLENICALLY UNSATURATED MONOMERS AND THE REMOVAL THEREOF BEFORE POLYMERIZATION
    45.
    发明申请
    COMPOSITION PREVENTING THE POLYMERIZATION OF ETHYLENICALLY UNSATURATED MONOMERS AND THE REMOVAL THEREOF BEFORE POLYMERIZATION 有权
    组合物防止乙烯聚合单体的聚合反应及其在聚合前的去除

    公开(公告)号:US20160230089A1

    公开(公告)日:2016-08-11

    申请号:US15021994

    申请日:2014-09-11

    申请人: RHODIA OPERATIONS

    IPC分类号: C09K15/08 C08F136/08

    摘要: The invention describes a composition that inhibits the polymerization of ethylenically unsaturated monomers, including at least 98% by weight of 4-tert-butylcatechol (4-TBC), 0.03% to 0.2% by weight of catechol (PC), and at least one impurity selected among 3-tert-butylcatechol, tert-butylhydroquinone, 3,5-di-tert-butylcatechol and mixture thereof, the total quantity of said impurities and of the PC being 0.1% to 0.8% by weight of said composition. The invention also describes a method for removing in said polymerization-inhibiting composition present in a mixture including at least one ethylenically unsaturated monomer.

    摘要翻译: 本发明描述了抑制烯属不饱和单体聚合的组合物,包括至少98重量%的4-叔丁基邻苯二酚(4-TBC),0.03重量%至0.2重量%的儿茶酚(PC)和至少一种 选自3-叔丁基邻苯二酚,叔丁基氢醌,3,5-二叔丁基邻苯二酚及其混合物中的杂质,所述杂质和PC的总量为所述组合物重量的0.1%至0.8%。 本发明还描述了一种在包含至少一种烯属不饱和单体的混合物中存在于所述聚合抑制组合物中的方法。

    Process for producing phenol
    46.
    发明授权
    Process for producing phenol 有权
    苯酚生产工艺

    公开(公告)号:US09221736B2

    公开(公告)日:2015-12-29

    申请号:US14414341

    申请日:2013-06-17

    发明人: Ronald Birkhoff

    摘要: In a process for producing phenol, benzene is contacted with a C3 alkylating agent comprising isopropanol under alkylation conditions such that at least part of the isopropanol reacts with the benzene to produce cumene. At least part of the resultant cumene is then oxidized in the presence of an oxidizing gas to produce an oxidation effluent comprising cumene hydroperoxide, unreacted cumene and a spent oxidizing gas. The unreacted cumene is separated from the oxidation effluent and is treated to remove nitrogenous impurities therefrom and produce a purified cumene stream, which is recycled to the oxidization step. At least part of the cumene hydroperoxide from the oxidation effluent is cleaved to produce a cleavage effluent comprising phenol and acetone. The phenol is recovered phenol from the cleavage effluent, whereas at least part of the acetone from the cleavage effluent is hydrogenated to produce isopropanol for recycle to the alkylation step.

    摘要翻译: 在生产苯酚的方法中,苯在烷基化条件下与包含异丙醇的C3烷基化剂接触,使得至少部分异丙醇与苯反应产生枯烯。 然后在氧化气体的存在下将所得异丙基苯的至少一部分氧化以产生包含氢过氧化枯烯,未反应的枯烯和废氧化气体的氧化流出物。 将未反应的异丙基苯与氧化流出物分离,并进行处理以从其中除去含氮杂质,并产生纯化的枯烯物流,将其再循环至氧化步骤。 来自氧化流出物的至少部分氢过氧化枯烯被切割以产生包含苯酚和丙酮的裂解流出物。 苯酚是从裂解流出物中回收的苯酚,而来自裂解流出物的至少部分丙酮被氢化以产生异丙醇以再循环到烷基化步骤。

    Phenol resin treatment improvement
    47.
    发明授权
    Phenol resin treatment improvement 有权
    苯酚树脂处理改善

    公开(公告)号:US09193652B2

    公开(公告)日:2015-11-24

    申请号:US14632133

    申请日:2015-02-26

    发明人: Theodor Wilks

    摘要: Methods and systems for purifying phenol. The method can include contacting a feed that includes phenol and an aldehyde containing compound with a first ion exchange material to produce a first treated product. The first treated product can have a pH that is less than a pH of the feed. The first treated product can contain less of the aldehyde containing compound than the feed. The first treated product can be contacted with a second ion exchange material to produce a second treated product. The second treated product can have a pH that is greater than the pH of the first treated product. Each of the first ion exchange material and the second ion exchange material can be a solid, a semi-solid, or a combination thereof.

    摘要翻译: 苯酚纯化方法和系统 该方法可以包括使包含苯酚和含醛化合物的进料与第一离子交换材料接触以产生第一处理产物。 第一次处理的产品可以具有小于进料pH的pH。 第一次处理的产品可以含有比进料更少的含醛化合物。 第一处理产物可与第二离子交换材料接触以产生第二处理产物。 第二处理产物的pH值可以大于第一处理产物的pH值。 第一离子交换材料和第二离子交换材料中的每一个可以是固体,半固体或其组合。

    Method for cultivation of Monarda fistulosa for production of thymoquinone
    50.
    发明授权
    Method for cultivation of Monarda fistulosa for production of thymoquinone 有权
    培养Monarda fistulosa生产胸腺醌的方法

    公开(公告)号:US09073824B2

    公开(公告)日:2015-07-07

    申请号:US13804026

    申请日:2013-03-14

    摘要: A method for cultivating Monarda fistulosa for production of thymoquinone includes planting seeds at rates between about 2.5 and about 5 pounds per acre, preferably about 4 pounds per acre. The heavy rate of planting produces plants bearing oil without weed contamination and reduces herbicide use due to production of natural herbicides by the monarda plants. Seeding and mowing the first season, and harvesting in seasons thereafter reduce costs. The method results in increased production of essential oils including thymoquinone and thymohydroquinone at levels up to about 5% of recovered oils, and which may be distilled from the plant.

    摘要翻译: 用于培养Monarda fistulosa用于生产胸腺醌的方法包括以每英亩约2.5至约5磅,优选约4磅/英亩的速率种植种子。 种植重的速率产生含有油污的植物,而不会杂草污染,并且由于monarda植物生产天然除草剂而减少除草剂的使用。 播种和割草第一季,季节收割减少成本。 该方法导致包括胸腺醌和胸腺嘧啶在内的精油的产量增加至高达回收油的约5%,并可从植物中蒸馏出来。