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    Catalytic processes in the presence of zeolites of increased internal acid activity and decreased external acid activity
    41.
    发明授权
    Catalytic processes in the presence of zeolites of increased internal acid activity and decreased external acid activity 失效
    在存在具有增加的内部酸活性和降低外部酸活性的沸石存在下的催化过程

    公开(公告)号：US5220086A

    公开(公告)日：1993-06-15

    申请号：US803867

    申请日：1991-12-09

    Applicant: Paul G. Rodewald

    Inventor： Paul G. Rodewald

    IPC: B01J29/40 ,  C07C2/00 ,  C07C15/08

    CPC classification number: C07C2/00 ,  B01J29/40 ,  C07C15/08 ,  B01J2229/16 ,  B01J2229/37 ,  C07C2529/40 ,  Y02P20/52

    Abstract: The invention relates to the treatment of crystals of ZSM-5 with mineral acid to produce ZSM-5 crystals which have an acid activity associated with the pores and channels thereof, the shape selective portion of the crystal, which is greater than the acid activity of the non-shape selective portion of the crystal or the surface of the ZSM-5 crystal, and the effect of the treated zeolite, as a catalyst component, in catalytic hydrocarbon conversions.

    Abstract translation: 本发明涉及用无机酸处理ZSM-5的晶体以产生具有与其孔和通道相关的酸活性的ZSM-5晶体，晶体的形状选择性部分大于其酸活性 晶体的非形状选择性部分或ZSM-5晶体的表面，以及经处理的沸石作为催化剂组分在催化烃转化中的作用。

    Acylation of lower olefin oligomers
    42.
    发明授权
    Acylation of lower olefin oligomers 失效
    低级烯烃低聚物的酰化

    公开(公告)号：US5021178A

    公开(公告)日：1991-06-04

    申请号：US476080

    申请日：1990-02-07

    Applicant: Catherine S. H. Chen ,  Paul G. Rodewald

    Inventor： Catherine S. H. Chen ,  Paul G. Rodewald

    IPC: C07C45/45 ,  C10M105/20 ,  C10M129/24

    CPC classification number: C07C45/455 ,  C10M105/20 ,  C10M129/24 ,  C10M2207/08

    Abstract: Oligomers produced from lower alkenes by acidic zeolite catalyzed oligomerization can be converted to useful lubricant additives or lubricants by acylation of olefinic bonds in the oligomers, whereby oligomers containing alpha, beta unsaturated ketone structures are produced. The products so produced from C.sub.20 + olefins exhibit favorable lubricant qualities of viscosity index and low pour points. The discovery is particularly applicable to the acylation of oligomers produced from lower alkenes such as propylene by oligomerization using a ZSM-5 catalyst which has been surface deactivated.

    Abstract translation: 通过酸性沸石催化低聚产生的低级烯烃的低聚物可以通过在低聚物中酰化烯键而转化为有用的润滑剂添加剂或润滑剂，由此制备含有α，β不饱和酮结构的低聚物。 由C20 +烯烃生产的产品具有良好的粘度指数和低倾点润滑油质量。 该发现特别适用于通过使用表面失活的ZSM-5催化剂通过低聚而由低级烯烃如丙烯生产的低聚物的酰化。

    Method of removing chlorofluorocarbons from the atmosphere
    43.
    发明授权
    Method of removing chlorofluorocarbons from the atmosphere 失效
    从大气中除去氯氟烃的方法

    公开(公告)号：US4997632A

    公开(公告)日：1991-03-05

    申请号：US529997

    申请日：1990-05-29

    Applicant: Paul G. Rodewald

    Inventor： Paul G. Rodewald

    IPC: B01D53/86 ,  B01J23/06 ,  C01B7/01 ,  C01B7/19 ,  C01B32/50

    CPC classification number: B01J23/06 ,  B01D53/8662 ,  C01B31/20 ,  C01B7/01 ,  C01B7/191 ,  Y02C20/30 ,  Y02P20/155

    Abstract: A method of using photoactive semiconductors to reduce atmosphere chlorofluorocarbons by dispersing photoactive semiconductor particles, namely titanium dioxide, zinc oxide or zinc sulfide into the stratosphere, activating the particles through exposure to ambient light, accumulating chlorofluorocarbons by chemisorption into the semiconductor, precipitating the reacted particles from the stratosphere and hydrolyzing the chlorofluorocarbon moiety into involatile components.

    Abstract translation: 使用光活性半导体通过将光活性半导体颗粒（即二氧化钛，氧化锌或硫化锌）分散到平流层中来活化颗粒，通过暴露于环境光中活化颗粒，通过化学吸收将半氟化碳积聚到半导体中，使反应的颗粒沉淀 从平流层并将氯氟烃部分水解成不挥发成分。

    Alkylate upgrading
    46.
    发明授权
    Alkylate upgrading 失效
    烷基化升级

    公开(公告)号：US4910357A

    公开(公告)日：1990-03-20

    申请号：US210952

    申请日：1988-06-24

    Applicant: Ralph M. Dessau ,  Paul G. Rodewald

    Inventor： Ralph M. Dessau ,  Paul G. Rodewald

    IPC: C07C5/41 ,  C10G35/095 ,  C10G63/02

    CPC classification number: C07C5/417 ,  C10G35/095 ,  C10G63/02

    Abstract: A process selective for converting dimethylhexanes to aromatic analogs is described. Application of the exhibited selectivity of the process allows upgrading alkylate dimethylhexane(s) of low RON to produce higher RON analogs without affecting changes in other components of the alkylate. The catalysts preferred comprise platinum and non-acidic supports such as [Sn]ZSM-5 and [In]ZSM-5.

    Abstract translation: 描述了将二甲基己烷转化为芳族类似物的选择性方法。 施用该方法的选择性允许提高低RON的烷基化二甲基己烷以产生较高的RON类似物，而不影响烷基化物的其它组分的变化。 催化剂优选包括铂和非酸性载体，例如[Sn] ZSM-5和[In] ZSM-5。

    Silica-modified zeolite catalysts
    47.
    发明授权
    Silica-modified zeolite catalysts 失效
    二氧化硅改性沸石催化剂

    公开(公告)号：US4402867A

    公开(公告)日：1983-09-06

    申请号：US333365

    申请日：1981-12-22

    Applicant: Paul G. Rodewald

    Inventor： Paul G. Rodewald

    IPC: B01J29/40 ,  B01J29/65 ,  B01J29/70 ,  C07C1/20 ,  B01J29/28

    CPC classification number: B01J29/40 ,  C07C1/20 ,  B01J2229/14 ,  B01J2229/32 ,  B01J29/65 ,  B01J29/70 ,  C07C2521/08 ,  C07C2529/40 ,  C07C2529/65 ,  C07C2529/70 ,  Y02P20/52 ,  Y02P30/42

    Abstract: An improved method is provided for the production of silica-modified zeolite catalysts. Such catalysts are especially useful in a wide variety of processes including the conversion of methanol to gasoline, methanol to olefins, selective toluene disproportionation, toluene alkylation with methanol, the synthesis of p-ethyl toluene, lubricant hydro-dewaxing and the like. The catalysts formed in accordance with the present invention comprise crystalline aluminosilicate zeolites having a silica to alumina ratio of at least about 12, a constraint index, as hereinafter defined, within an approximate range of 1-12 and having contained within the interior crystalline structure thereof added amorphous silica in an amount of at least about 0.3% and preferably between about 0.5% and about 30 weight percent. The resultant catalyst is characterized by an n-hexane sorption capacity at a temperature of 90.degree. C. and an n-hexane partial pressure of 83 mm. of mercury which is at least 1 percent less than corresponding sorption capacity under identical conditions for the unmodified zeolite. Generally, the n-hexane sorption capacity for the described silica-modified zeolite, at the above specified conditions, is 5 to 60 percent less than that for the zeolite which has not undergone treatment to incorporate amorphous silica therein. The invention described herein also encompasses synthesis of the specified catalyst and use of the same in, for example, selectively converting lower monohydric alcohols and their ethers, especially methanol and dimethyl ether, to a hydrocarbon mixture rich in ethylene and propylene.

    Abstract translation: 提供了一种用于生产二氧化硅改性沸石催化剂的改进方法。 这种催化剂特别适用于各种各样的方法，包括将甲醇转化成汽油，甲醇转化成烯烃，选择性甲苯歧化，用甲醇进行甲苯烷基化，对乙基甲苯的合成，润滑剂加氢脱蜡等。 根据本发明形成的催化剂包含具有至少约12的二氧化硅与氧化铝之比的结晶硅铝酸盐沸石，下文所定义的约束指数在1-12的约1-12范围内并且其内部结晶结构 添加的无定形二氧化硅的量为至少约0.3％，优选约0.5％至约30％重量。 所得催化剂的特征在于在90℃的温度和正己烷分压为83mm的正己烷吸附容量。 的汞在未改性沸石的相同条件下比相应的吸附容量小至少1％。 通常，在上述特定条件下，所述二氧化硅改性沸石的正己烷吸附容量比没有经过处理以在其中掺入无定形二氧化硅的沸石的正己烷吸附容量小5至60％。 本文所述的发明还包括合成特定的催化剂及其在例如选择性地将较低级一元醇及其醚，特别是甲醇和二甲醚转化成富烯烃和丙烯的烃混合物中的用途。

    Hydrogen regeneration of coke-selectivated crystalline aluminosilicate catalyst
    49.
    发明授权
    Hydrogen regeneration of coke-selectivated crystalline aluminosilicate catalyst 失效
    焦炭选择性结晶硅铝酸盐催化剂的氢再生

    公开(公告)号：US4358395A

    公开(公告)日：1982-11-09

    申请号：US941606

    申请日：1978-09-11

    Applicant: Werner O. Haag ,  David H. Olson ,  Paul G. Rodewald

    Inventor： Werner O. Haag ,  David H. Olson ,  Paul G. Rodewald

    IPC: B01J29/90 ,  B01J38/10 ,  C07B61/00 ,  C07C1/00 ,  C07C1/20 ,  C07C2/66 ,  C07C5/27 ,  C07C6/12 ,  C07C15/02 ,  C07C15/08 ,  C07C67/00 ,  B01J29/38 ,  C07C1/24 ,  C07C5/22

    CPC classification number: C07C6/123 ,  B01J29/90 ,  C07C1/20 ,  C07C2/66 ,  C07C5/2708 ,  B01J2229/123 ,  B01J38/10 ,  C07C2529/40 ,  Y02P20/584

    Abstract: A method is provided for regeneration of a catalyst comprising a crystalline aluminosilicate zeolite characterized by a silica to alumina mole ratio of at least about 12, a constraint index, as hereinafter defined, within the approximate range of 1 to 12, which catalyst has undergone controlled precoking by exposing the same to a thermally decomposable organic compound at a temperature in excess of the decomposition temperature of said compound but less than about 1200.degree. F., at a hydrogen to organic compound mole ratio of between 0 and 1 to deposit at least about 1 weight percent coke thereon, such precoked catalyst having been deactivated by formation of a carbonaceous deposit thereon as a result of use of the same in catalytically converting an organic charge under conditions less severe, i.e., at a lower temperature and/or a higher hydrogen concentration than those employed during said precoking which comprises contacting the aged catalyst with an atmosphere comprising hydrogen at a temperature between about 800.degree. F. and about 1200.degree. F. and a pressure between about 0 and about 2000 psig for a period of time sufficient to at least partially restore the activity of the catalyst.

    Abstract translation: 提供了一种用于再生包含结晶硅铝酸盐沸石的催化剂的方法，其特征在于二氧化硅与氧化铝的摩尔比为至少约12，下文定义的约束指数在约12至约12的范围内，该催化剂已被控制 通过在超过所述化合物的分解温度但小于约1200°F的温度下将其暴露于可热分解的有机化合物中，在氢与有机化合物的摩尔比为0至1之间进行沉淀，以沉积至少约 其中焦炭重量为1％，这种预制催化剂已经通过在其上形成碳质沉积物而失活，其结果是在不太严格的条件下即在较低温度和/或较高的氢气条件下催化转化有机电荷 浓度高于在所述预处理中使用的浓度，其包括使老化的催化剂与包含氢气的气氛接触 约800°F至约1200°F之间的温度和约0至约2000psig的压力持续足以至少部分恢复催化剂活性的时间。

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