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38 条记录 (耗时 0.016 秒)

    Measurement of short chain branching in olefin copolymers using chemometric analysis
    1.
    发明授权
    Measurement of short chain branching in olefin copolymers using chemometric analysis 有权
    使用化学计量分析测量烯烃共聚物中的短链支化

    公开(公告)号：US07056744B2

    公开(公告)日：2006-06-06

    申请号：US10463849

    申请日：2003-06-16

    申请人： Paul J. DesLauriers ,  David C. Rohlfing ,  Alan D. Eastman ,  Eric T. Hsieh

    发明人： Paul J. DesLauriers ,  David C. Rohlfing ,  Alan D. Eastman ,  Eric T. Hsieh

    IPC分类号： G01N33/44 ,  G01N21/00

    CPC分类号： G01N21/359 ,  G01N21/3577 ,  G01N2021/3595 ,  Y10T436/21

    摘要： A method of determining the proportion of short-chain branching in an olefin copolymer process stream is disclosed. The short-chain branching may also be determined as a function of molecular weight in a sample having a range of molecular weights. In the method, at least two olefin copolymer training samples are provided. The respective samples have different, known proportions of short-chain branching. The infrared (e.g. FT-IR) absorbance spectra of the training samples in a wavenumber range are obtained. Calibration information is determined from the training samples by chemometrically correlating the differences in the infrared absorbance spectra of the training samples to the differences in the degree of short-chain branching in the training samples. This step generates calibration information that allows the degree of short-chain branching in a sample to be determined once its infrared absorbance spectrum is obtained. A method for determining the statistical error in the measurement of short-chain branching in an olefin polymer sample as a function of its molecular weight distribution is also disclosed.

    摘要翻译： 公开了一种确定烯烃共聚物工艺流中短链支化比例的方法。 短链支化也可以在具有分子量范围的样品中作为分子量的函数来确定。 在该方法中，提供至少两种烯烃共聚物训练样品。 各样品具有不同的已知比例的短链支化。 获得波数范围内训练样本的红外（例如FT-IR）吸收光谱。 通过化学方法将训练样本的红外吸收光谱的差异与训练样本中短链分支程度的差异化学相关，从训练样本中确定校准信息。 该步骤产生校准信息，其允许在获得样品的红链吸收光谱后测定样品中的短链支化度。 还公开了用于确定烯烃聚合物样品中短链支化的测量中的统计误差作为其分子量分布的函数的方法。

    Measurement of short chain branching in olefin copolymers using chemometric analysis
    2.
    发明授权
    Measurement of short chain branching in olefin copolymers using chemometric analysis 有权
    使用化学计量分析测量烯烃共聚物中的短链支化

    公开(公告)号：US06632680B1

    公开(公告)日：2003-10-14

    申请号：US09667657

    申请日：2000-09-22

    申请人： Paul J. DesLauriers ,  David C. Rohlfing ,  Alan D. Eastman ,  Eric T. Hsieh

    发明人： Paul J. DesLauriers ,  David C. Rohlfing ,  Alan D. Eastman ,  Eric T. Hsieh

    IPC分类号： G01N3344

    CPC分类号： G01N21/359 ,  G01N21/3577 ,  G01N2021/3595 ,  Y10T436/21

    摘要： A method of determining the proportion of short-chain branching in an olefin copolymer process stream is disclosed. The short-chain branching may also be determined as a function of molecular weight in a sample having a range of molecular weights. In the method, at least two olefin copolymer training samples are provided. The respective samples have different, known proportions of short-chain branching. The infrared (e.g. FT-IR) absorbance spectra of the training samples in a wavenumber range are obtained. Calibration information is determined from the training samples by chemometrically correlating the differences in the infrared absorbance spectra of the training samples to the differences in the degree of short-chain branching in the training samples. This step generates calibration information that allows the degree of short-chain branching in a sample to be determined once its infrared absorbance spectrum is obtained. A method for determining the statistical error in the measurement of short-chain branching in an olefin polymer sample as a function of its molecular weight distribution is also disclosed.

    摘要翻译： 公开了一种确定烯烃共聚物工艺流中短链支化比例的方法。 短链支化也可以在具有分子量范围的样品中作为分子量的函数来确定。 在该方法中，提供至少两种烯烃共聚物训练样品。 各样品具有不同的已知比例的短链支化。 获得波数范围内训练样本的红外（例如FT-IR）吸收光谱。 通过化学方法将训练样本的红外吸收光谱的差异与训练样本中短链分支程度的差异化学相关，从训练样本中确定校准信息。 该步骤产生校准信息，其允许在获得样品的红链吸收光谱后测定样品中的短链支化度。 还公开了用于确定烯烃聚合物样品中短链支化测量中的统计误差作为其分子量分布函数的方法。

    Oxidative dehydrogenation catalyst
    5.
    发明授权
    Oxidative dehydrogenation catalyst 失效
    氧化脱氢催化剂

    公开(公告)号：US4370259A

    公开(公告)日：1983-01-25

    申请号：US308980

    申请日：1981-10-06

    申请人： Alan D. Eastman ,  John H. Kolts

    发明人： Alan D. Eastman ,  John H. Kolts

    IPC分类号： B01J27/18 ,  C07C5/48 ,  B01J27/14 ,  B01J31/12

    CPC分类号： B01J27/1802 ,  C07C5/48 ,  Y02P20/52

    摘要： Hydrocarbons are oxidatively dehydrogenated in the presence of a catalyst comprising a mixture of oxides of manganese, phosphorus, and an alkali metal, optionally, supported on a refractory oxide. In one embodiment, ethane is converted to ethylene in the presence of a catalyst comprising a mixture of oxides of manganese, phosphorus, and sodium supported on alumina.

    摘要翻译： 在包含锰，磷和碱金属的氧化物的混合物的催化剂的存在下，碳氢化合物被氧化脱氢，任选负载在难熔氧化物上。 在一个实施方案中，在包含负载在氧化铝上的锰，磷和钠的氧化物的混合物的催化剂存在下，将乙烷转化为乙烯。

    Dehydrogenation of organic compounds with a promoted zinc titanate catalyst
    6.
    发明授权
    Dehydrogenation of organic compounds with a promoted zinc titanate catalyst 失效
    用促进的钛酸锌催化剂脱氢有机化合物

    公开(公告)号：US4327238A

    公开(公告)日：1982-04-27

    申请号：US125436

    申请日：1980-02-28

    申请人： Alan D. Eastman

    发明人： Alan D. Eastman

    IPC分类号： B01J23/06 ,  B01J23/10 ,  B01J23/12 ,  B01J23/18 ,  B01J23/26 ,  C07C5/333 ,  C07C5/32

    CPC分类号： B01J23/26 ,  B01J23/06 ,  B01J23/10 ,  B01J23/12 ,  B01J23/18 ,  C07C5/3332 ,  Y02P20/52

    摘要： The catalytic dehydrogenation of at least one dehydrogenatable organic compound which has at least one ##STR1## grouping is carried out in the presence of a zinc titanate catalyst. The selectivity of the zinc titanate catalyst is improved by at least one promoter selected from the group consisting of chromium oxide, antimony oxide, bismuth oxide, oxides of the lanthanides, oxides of the actinides, oxides thereof, and compounds convertible to the oxides thereof.

    摘要翻译： 具有至少一个组分的至少一种可脱氢有机化合物的催化脱氢在钛酸锌催化剂存在下进行。 钛酸锌催化剂的选择性由选自氧化铬，氧化锑，氧化铋，镧系元素的氧化物，锕系元素的氧化物，氧化物和可转化为氧化物的化合物组成的组中的至少一种促进剂提高。

    PROCESS TO OBTAIN THERMAL AND KINETIC ENERGY FROM A GEOTHERMAL HEAT SOURCE USING SUPERCRITICAL CO2
    7.
    发明申请
    PROCESS TO OBTAIN THERMAL AND KINETIC ENERGY FROM A GEOTHERMAL HEAT SOURCE USING SUPERCRITICAL CO2 审中-公开
    使用超临界二氧化碳从地热源获取热能和动力学能量的方法

    公开(公告)号：US20110100002A1

    公开(公告)日：2011-05-05

    申请号：US12938296

    申请日：2010-11-02

    申请人： John R. Muir ,  Alan D. Eastman ,  Mark P. Muir

    发明人： John R. Muir ,  Alan D. Eastman ,  Mark P. Muir

    IPC分类号： F03G4/00

    CPC分类号： F24T10/20 ,  Y02E10/14

    摘要： Methods and systems for extracting geothermal energy from an underground hot dry rock reservoir using supercritical carbon dioxide are disclosed. In a first step, the methods and systems utilize a heat exchanger in a binary system to heat a secondary fluid that is used to perform work. In a second step, the supercritical carbon dioxide is transferred to a pseudo turbine (e.g., a free-piston linear engine) to perform additional work through expansion.

    摘要翻译： 公开了使用超临界二氧化碳从地下热干储层中提取地热能的方法和系统。 在第一步中，方法和系统利用二元系统中的热交换器来加热用于执行工作的次级流体。 在第二步骤中，将超临界二氧化碳转移到假涡轮机（例如，自由活塞线性发动机），以通过膨胀进行附加的作业。

    Alkylation catalyst regeneration
    9.
    发明授权
    Alkylation catalyst regeneration 失效
    烷基化催化剂再生

    公开(公告)号：US5284993A

    公开(公告)日：1994-02-08

    申请号：US947611

    申请日：1992-09-21

    申请人： Alan D. Eastman

    发明人： Alan D. Eastman

    IPC分类号： B01J31/40 ,  C07C2/62 ,  C07C303/44 ,  C07C309/04 ,  C07C7/04

    CPC分类号： B01J31/0227 ,  B01J31/0225 ,  B01J31/40 ,  C07C2/62 ,  C07C303/44 ,  B01J2231/4205 ,  B01J2531/96 ,  C07C2531/025 ,  Y02P20/584

    摘要： Disclosed is a process for removing acid soluble oils, produced as an undesirable by-product of an acid catalyzed alkylation reaction, from a mixture containing a strong acid and methanesulfonic acid. The process includes the use of water to induce the formation of the two immiscible liquid phases of ASO and methanesulfonic acid with water. The two immiscible phases can subsequently be separated from each other.

    摘要翻译： 公开了从含有强酸和甲磺酸的混合物中除去作为酸催化的烷基化反应的不良副产物产生的酸溶性油的方法。 该方法包括使用水来诱导ASO和甲磺酸的两种不混溶液相与水的形成。 两个不混溶的相可随后彼此分离。