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    • 3. 发明授权
    • Production and purification of phenol: hydroxyacetone removal by hydrotalcite
    • 苯酚的生产和纯化:通过水滑石除去羟基丙酮
    • US06486365B1
    • 2002-11-26
    • US10063258
    • 2002-04-04
    • John W. FulmerBharat SinghPramod KumbharPrashant Anil TatakeUmesh Hasyagar
    • John W. FulmerBharat SinghPramod KumbharPrashant Anil TatakeUmesh Hasyagar
    • C07C3708
    • C07C37/86C07C2521/10C07C39/04
    • A process for converting carbonyl-type impurities contained in a phenolic solvent to high-boiling derivatives is provided by contacting the phenolic solvent with a hydrotalcite-type material (HTM). The phenol can be separated from the high-boiling derivatives using conventional separation techniques, such as distillation, so the invention also provides a process for separating carbonyl-type impurities, such as hydroxyacetone (HA), from a phenolic solvent. The process can be applied in the conventional industrial process for converting cumene to phenol to remove carbonyl-type impurities from the phenol product. A process and a facility for producing purified phenol by converting cumene to phenol are provided. In the conversion of cumene to phenol, the phenol often contains carbonyl-type impurities. The phenol and carbonyl-type impurities are reacted in the presence of an HTM to produce phenol and high-boiling derivatives. The phenol may be further purified using conventional separation techniques, such as distillation, to remove the high-boiling derivatives.
    • 通过使酚类溶剂与水滑石类材料(HTM)接触来提供将酚类溶剂中所含的羰基型杂质转化成高沸点衍生物的方法。 苯酚可以使用常规的分离技术如蒸馏从高沸点衍生物中分离,因此本发明还提供了从酚类溶剂中分离羰基型杂质如羟基丙酮(HA)的方法。 该方法可用于将异丙基苯转化为苯酚以从苯酚产物中除去羰基型杂质的常规工业方法。 提供了通过将异丙基苯转化成苯酚来生产纯化苯酚的方法和设备。 在异丙苯转化为苯酚时,苯酚常含有羰基型杂质。 苯酚和羰基型杂质在HTM存在下反应生成苯酚和高沸点衍生物。 可以使用常规分离技术如蒸馏进一步纯化苯酚,以除去高沸点衍生物。
    • 4. 发明授权
    • Production and purification of phenol
    • 苯酚的生产和纯化
    • US06635789B2
    • 2003-10-21
    • US09683956
    • 2002-03-06
    • John W. FulmerNitin VaishPramod KumbharJacob L. OberholtzerR. Jothi Mahalingam
    • John W. FulmerNitin VaishPramod KumbharJacob L. OberholtzerR. Jothi Mahalingam
    • C07C3768
    • C07C37/82B01J41/02B01J41/10C07C39/04
    • A process for separating sulfonic acid compounds from a phenolic solvent is provided by contacting the phenolic solvent with a hydrotalcite-type material (HTM). The process can be applied in the conventional industrial process for converting cumene to phenol to remove sulfonic acid compounds from the phenol product. A process and a facility for producing purified phenol by converting cumene to phenol are provided. In the conversion of cumene to phenol, the phenol often contains carbonyl-type impurities. The phenol and carbonyl-type impurities are reacted in the presence of a sulfonic acid cation exchange resin catalyst (IER) to produce a reaction product that may contain sulfonic acid compounds. The reaction product is contacted with an HTM to reduce the amount of sulfonic acid compounds which may be present and to produce a purified phenol-containing stream. The purified phenol-containing stream may be further purified using conventional separation techniques, such as distillation.
    • 通过使酚类溶剂与水滑石型材料(HTM)接触来提供从酚类溶剂中分离磺酸化合物的方法。 该方法可用于将异丙基苯转化为苯酚以从苯酚产物中除去磺酸化合物的常规工业过程。 提供了通过将异丙基苯转化成苯酚来生产纯化苯酚的方法和设备。 在异丙苯转化为苯酚时,苯酚常含有羰基型杂质。 苯酚和羰基型杂质在磺酸阳离子交换树脂催化剂(IER)的存在下反应,生成可能含有磺酸化合物的反应产物。 使反应产物与HTM接触,以减少可能存在的磺酸化合物的量并产生纯化的含苯酚流。 可以使用常规分离技术例如蒸馏进一步纯化纯化的含苯酚流。
    • 5. 发明授权
    • Process for purifying acetone
    • 丙酮纯化方法
    • US4626600A
    • 1986-12-02
    • US703990
    • 1985-02-21
    • John W. FulmerWilliam D. Kight
    • John W. FulmerWilliam D. Kight
    • C07C45/53C07C45/80C07C45/81C07C45/82
    • C07C45/81C07C45/53C07C45/80C07C45/82
    • In accordance with the invention there is a process for reducing the water content of acetone prepared from cumene which includes the steps ofa. adding cleaving effective catalytic quantities of sulfuric acid to a mixture comprising cumene hydroperoxide and cumene, the cumene hydroperoxide making up about 81 to 83 weight percent of the said mixture, thereby producing a mixture comprising phenol, acetone, cumene and sulfuric acid;b. neutralizing the said sulfuric acid with an aqueous alkali hydroxide and separating the alkali metal sulfate from the mixture comprising phenol, acetone, water and cumene, the water being from about 40 to 60 weight percent of the total weight of water and cumene, the cumene being present in sufficient quantities to cause the formation of two liquid phases upon condensing the acetone fraction distillate;c. separating by distillation the acetone fraction from the phenol fraction, said acetone fraction containing acetone, water, aldehyde, and other organics including cumene;d. condensing the said acetone fraction, the said acetone fraction separating into two phases, the bottom phase having a substantial portion of the water and aldehyde present in the said acetone fraction, the upper phase having a substantial portion of the cumene of the said acetone fraction, the acetone being partitioned between the bottom phase and the upper phase;e. recycling at least a portion of the bottom phase to the vessel in which the sulfuric acid is neutralized andf. processing the upper phase to achieve a separation of the acetone and water.
    • 根据本发明,存在一种降低由枯烯制备的丙酮的水含量的方法,其包括以下步骤:a。 向包含氢过氧化异丙苯和异丙基苯的混合物中加入有效催化量的硫酸,氢过氧化异丙苯占所述混合物的约81-83%(重量),从而产生包含苯酚,丙酮,异丙基苯和硫酸的混合物; b。 用碱金属氢氧化物中和所述硫酸,并从包括苯酚,丙酮,水和枯烯的混合物中分离出碱金属硫酸盐,水为水和异丙基苯的总重量的约40至60重量%,枯烯为 存在足够的量以在冷凝丙酮馏分馏出物时形成两个液相; C。 通过蒸馏从苯酚馏分中蒸馏出丙酮馏分,所述丙酮馏分含有丙酮,水,醛和其它有机物,包括枯烯; d。 将所述丙酮馏分冷凝,将所述丙酮馏分分离成两相,底相具有存在于所述丙酮馏分中的大部分水和醛,上部相具有所述丙酮馏分的枯烯的相当大部分, 丙酮被分配在底相和上相之间; e。 将至少一部分底部相转移到其中硫酸中和的容器中。 加工上相以实现丙酮和水的分离。