Catalytic processes for the preparation of acetic esters
    1.
    发明授权
    Catalytic processes for the preparation of acetic esters 失效
    用于制备乙酸酯的催化方法

    公开(公告)号:US5998658A

    公开(公告)日:1999-12-07

    申请号:US105795

    申请日:1998-06-26

    CPC classification number: C07C67/08 Y02P20/127 Y02P20/582

    Abstract: An improved process for the preparation of acetic esters is disclosed. It comprises a fixed bed reaction and a catalytic distillation. The fixed bed reaction comprises the steps of: (a) charging acetic acid and alcohol into a fixed bed reactor under a predetermined reaction condition; and (b) reacting the esterification reactants in the fixed bed reactor. The fixed bed reactor contains acidic catalysts that are present in a solid phase, and the reaction condition is controlled such that (i) the reactants and the products co-exist in a gas-liquid two-phase equilibrium in the fixed bed reactor and that (ii) at least one component of the reactants is present in one phase and at least one component of the products is present in another phase. The catalytic distillation comprises the steps of: (1) charging acetic acid from top of a catalytic distillation column and the reaction products from the fixed bed reactor from the bottom of the catalytic column in a counter-flow manner; and (c) continuously removing acetic ester and water from the top of the catalytic distillation column, and continuously removing acetic acid from the bottom of the catalytic distillation column. The acetic acid removed from the catalytic distillation column is fed into the fixed bed reactor. Very high alcohol conversion and essentially alcohol free product can be obtained at substantially reduced height of the catalytic distillation column.

    Abstract translation: 公开了一种制备乙酸酯的改进方法。 它包括固定床反应和催化蒸馏。 固定床反应包括以下步骤:(a)在预定的反应条件下将乙酸和醇加入到固定床反应器中; 和(b)在固定床反应器中使酯化反应物反应。 固定床反应器含有存在于固相中的酸性催化剂,并且控制反应条件使得(i)反应物和产物在固定床反应器中以气液两相平衡共存,而且 (ii)反应物的至少一种组分存在于一相中,并且产物的至少一种组分存在于另一相中。 催化蒸馏包括以下步骤:(1)从催化蒸馏塔顶部以反流方式从催化塔底部向固定床反应器中加入乙酸; 和(c)从催化蒸馏塔的顶部连续地除去乙酸酯和水,并从催化蒸馏塔的底部连续地除去乙酸。 从催化蒸馏塔中除去的乙酸被送入固定床反应器。 可以在催化蒸馏塔的基本上降低的高度获得极高的醇转化率和基本上无醇的产物。

    Method for the removal of carbon monoxide from a gas mixture
    2.
    发明授权
    Method for the removal of carbon monoxide from a gas mixture 有权
    从气体混合物中除去一氧化碳的方法

    公开(公告)号:US07666377B2

    公开(公告)日:2010-02-23

    申请号:US11138480

    申请日:2005-05-27

    Abstract: The present invention discloses a method for removing carbon monoxide (CO) from a gas mixture containing CO including contacting the gas mixture with a nano-gold catalyst to reduce the CO content in the gas mixture by CO selective adsorption/oxidation, water gas shift reaction or CO selective oxidation reaction. The nano-gold catalyst includes a solid support and gold deposited on the support, wherein the deposited gold has a size less than 10 nm, and the support is a mixed metal hydroxide and oxide having the following formula: M(OH)qOy Wherein M is Ti, Fe, Co, Zr, or Ni; q is 0.1-1.5; and q+2y=z, wherein z is the valence of M.

    Abstract translation: 本发明公开了一种从含有CO的气体混合物中除去一氧化碳(CO)的方法,包括使气体混合物与纳米金催化剂接触,以通过CO选择性吸附/氧化,水煤气变换反应降低气体混合物中的CO含量 或CO选择性氧化反应。 纳米金催化剂包括固体载体和沉积在载体上的金,其中沉积的金具有小于10nm的尺寸,载体是具有下式的混合金属氢氧化物和氧化物:M(OH)qOy其中M 是Ti,Fe,Co,Zr或Ni; q为0.1-1.5; 和q + 2y = z,其中z是M的化合价。

    Method for the removal of carbon monoxide from a gas mixture
    3.
    发明申请
    Method for the removal of carbon monoxide from a gas mixture 有权
    从气体混合物中除去一氧化碳的方法

    公开(公告)号:US20060099125A1

    公开(公告)日:2006-05-11

    申请号:US11138480

    申请日:2005-05-27

    Abstract: The present invention discloses a method for removing carbon monoxide (CO) from a gas mixture containing CO including contacting the gas mixture with a nano-gold catalyt to reduce the CO content in the gas mixture by CO selective adsorption/oxidation, water gas shift reaction or CO selective oxidation reaction. The nano-gold catalyst includes a solid support and gold deposited on the support, wherein the deposited gold has a size less than 10 nm, and the support is a mixed metal hydroxide and oxide having the following formula: M(OH)qOyWherein M is Ti, Fe, Co, Zr, or Ni; q is 0.1-1.5; and q+2y=z, wherein z is the valence of M.

    Abstract translation: 本发明公开了一种从含有CO的气体混合物中除去一氧化碳(CO)的方法,包括使气体混合物与纳米金催化剂接触,以通过CO选择性吸附/氧化,水煤气变换反应降低气体混合物中的CO含量 或CO选择性氧化反应。 纳米金催化剂包括固体载体和沉积在载体上的金,其中沉积的金具有小于10nm的尺寸,并且载体是具有下式的混合金属氢氧化物和氧化物:<β在线式 描述=“在线公式”end =“lead”?> M(OH)qOy <?in-line-formula description =“In-line Formulas”end =“tail”?>其中M是Ti,Fe,Co ,Zr或Ni; q为0.1-1.5; 和q + 2y = z,其中z是M的化合价。

    Common framework for stackable modulator personal computer
    4.
    发明申请
    Common framework for stackable modulator personal computer 有权
    可堆叠调制器个人电脑的通用框架

    公开(公告)号:US20080061661A1

    公开(公告)日:2008-03-13

    申请号:US11730030

    申请日:2007-03-29

    CPC classification number: G06F1/18 G06F2200/1635

    Abstract: A common framework for a stackable modular personal computer comprises an outer frame and an inner frame and is capable of accepting an expansion card connecter and an expansion card projected out to an inner space thereof from a lower layer thereof. The inner frame can further be combined with a supporting frame use for combining with a CD-ROM drive or a hard disk driver. Whereby, one same common framework can have three different uses so as to attain to the function of one framework with multiple uses to save the cost for manufacturing different frameworks.

    Abstract translation: 用于可堆叠模块化个人计算机的共同框架包括外框架和内框架,并且能够接受从其下层向其内部空间突出的扩展卡连接器和扩展卡。 内框架还可以与用于与CD-ROM驱动器或硬盘驱动器组合的支撑框架组合。 因此,一个相同的共同框架可以有三种不同的用途,以便达到一个具有多种用途的框架的功能,以节省制造不同框架的成本。

    Ring-opening polymerization of cyclic ethers
    6.
    发明授权
    Ring-opening polymerization of cyclic ethers 失效
    环醚的开环聚合

    公开(公告)号:US5371276A

    公开(公告)日:1994-12-06

    申请号:US157960

    申请日:1993-11-24

    CPC classification number: C07C67/24

    Abstract: A method for preparing ester end-capped polyalkylene ether is disclosed. Cyclic ether monomers are subjected to ring-opening polymerzation at a temperature of 20.degree.-80.degree. C. and a pressure of 0-10 atm in the presence of a solid acid serving as catalyst and a mixture of acid and acid anhydride serving as a promoter. The solid acid is an oxide of group III and group IV elements and has been modified by sulfuric acid, ammonium sulfate or ammonium sulfite.

    Abstract translation: 公开了一种制备酯封端的聚亚烷基醚的方法。 在作为催化剂的固体酸存在下,将环醚单体在20〜80℃的温度和0〜10atm的压力下进行开环聚合,将酸和酸酐的混合物用作 启动子。 固体酸是III族和IV族元素的氧化物,并被硫酸,硫酸铵或亚硫酸铵改性。

    Stackable modular personal computer structure
    8.
    发明授权
    Stackable modular personal computer structure 有权
    可堆叠模块化个人电脑结构

    公开(公告)号:US07815264B2

    公开(公告)日:2010-10-19

    申请号:US11705041

    申请日:2007-02-12

    CPC classification number: G06F1/181 G06F2200/1635

    Abstract: A stackable modular personal computer structure comprises a lowermost frameworks, a plurality of intermediate frameworks, an uppermost framework and an upper cover; the frameworks and the upper cover stacked with each other in a sequence; all the frameworks have the first internal engaging structure inside the tops thereof respectively, the intermediate frameworks, the uppermost framework and the upper cover each have the second internal engaging structure inside the bottoms thereof respectively; the bottoms of each of the intermediate and the uppermost frameworks has a hole especially for electric wires to pass through to enable the modular personal computer so that a consistent outlook for the computer structure can be obtained.

    Abstract translation: 可堆叠的模块化个人计算机结构包括最下面的框架,多个中间框架,最上面的框架和上盖; 框架和上盖按顺序彼此堆叠; 所有的框架分别在其顶部内部具有第一内部接合结构,中间框架,最上框架和上盖分别在其底部内部具有第二内部接合结构; 中间和最上面的框架中的每一个的底部具有特别用于电线通过的孔,以使模块化个人计算机能够获得对于计算机结构的一致前景。

    Stackable modular personal computer structure
    9.
    发明申请
    Stackable modular personal computer structure 有权
    可堆叠模块化个人电脑结构

    公开(公告)号:US20080002346A1

    公开(公告)日:2008-01-03

    申请号:US11705041

    申请日:2007-02-12

    CPC classification number: G06F1/181 G06F2200/1635

    Abstract: A stackable modular personal computer structure, comprising a plurality of framework; the plural frameworks stacked to combine with each other in a sequence; a bottom of each other framework above the first framework which is mounted on a lowest layer has a hole for allowing at least one electric wire to be passed through to enable the electric wires of the modular personal computer and a combination structure of each layer are all hid inside the frameworks so that an identical outlook can be obtained.

    Abstract translation: 一种可堆叠的模块化个人计算机结构,包括多个框架; 堆叠的多个框架以一个顺序相互组合; 安装在最低层上的第一框架上方的每个框架的底部具有用于允许至少一根电线通过的孔,以使得模块化个人计算机的电线和每层的组合结构都是 隐藏在框架内,以便获得相同的前景。

    Process for the selective methanation of carbonmonoxide (CO) contained in a hydrogen-rich reformate gas
    10.
    发明申请
    Process for the selective methanation of carbonmonoxide (CO) contained in a hydrogen-rich reformate gas 有权
    用于富氢重整气体中所含的一氧化碳(CO)的选择性甲烷化的方法

    公开(公告)号:US20060111456A1

    公开(公告)日:2006-05-25

    申请号:US11110732

    申请日:2005-04-21

    Abstract: The present invention provides a methanation catalyst prepared by depositing Pt and Ru on a metal oxide carrier by incipient wetness impregnation or precipitation deposition, drying and calcining the deposited carrier to obtain a Pt—Ru/metal oxide catalyst. This catalyst can selectively catalyze methanation of CO, wherein hydrogen and CO in a hydrogen-rich reformate or synthesis gas are reacted to form methane and water, thereby the CO concentration in the hydrogen-rich reformate is reduced.

    Abstract translation: 本发明提供一种通过初始润湿浸渍或沉淀沉积,干燥和煅烧沉积的载体以获得Pt-Ru /金属氧化物催化剂,通过在金属氧化物载体上沉积Pt和Ru而制备的甲烷化催化剂。 该催化剂可以选择性地催化CO的甲烷化,其中富氢重整产物中的氢和CO反应生成甲烷和水,从而降低富氢重整产物中的CO浓度。

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