-
公开(公告)号：US5288475A
公开(公告)日：1994-02-22
申请号：US963979
申请日：1992-10-21
Applicant: Clarence D. Chang , Stuart D. Hellring
Inventor： Clarence D. Chang , Stuart D. Hellring
CPC classification number: C01B39/445 , B01J29/04 , C01B37/02
Abstract: This invention relates to a method for synthesizing ZSM-35 using a 1,4-dimethylpiperazine directing agent.
Abstract translation: 本发明涉及使用1,4-二甲基哌嗪导向剂合成ZSM-35的方法。
-
2.发明授权Process for hydrogenating alkenes in the presence of alkanes and a heterogeneous catalyst 失效在烷烃和非均相催化剂存在下氢化烯烃的方法
公开(公告)号：US5227552A
公开(公告)日：1993-07-13
申请号：US873842
申请日：1992-04-27
Applicant: Clarence D. Chang , Stuart D. Hellring , Randy F. Striebel
Inventor： Clarence D. Chang , Stuart D. Hellring , Randy F. Striebel
CPC classification number: B01J21/18 , C07C5/52 , Y10S585/906
Abstract: The present invention provides a process for producing a selected paraffin from a reaction mixture containing(i) an acceptor olefin having the carbon backbone structure of said selected paraffin;(ii) a donor paraffin having a carbon backbone structure different from that of said selected paraffin;(iii) less than about 10 mole percent molecular hydrogen; which process comprises the steps of contacting said reaction mixture with a heterogeneous catalyst comprising active carbon in the absence of an added catalytic metal or metal compound to convert at least a portion of said acceptor olefin to said selected paraffin and to dehydrogenate at least a portion of said donor paraffin.
Abstract translation: 本发明提供了一种从含有（i）具有所述选择的石蜡的碳主链结构的受主烯烃的反应混合物生产所选择的石蜡的方法; （ii）具有不同于所述选择的石蜡的碳骨架结构的供体石蜡; （iii）小于约10摩尔％的分子氢; 该方法包括以下步骤：在不存在添加的催化金属或金属化合物的情况下使所述反应混合物与包含活性炭的非均相催化剂接触，以将至少一部分所述受体烯烃转化为所述选择的石蜡，并将至少一部分 所述供体石蜡。
-
公开(公告)号：US4870192A
公开(公告)日：1989-09-26
申请号：US918683
申请日：1986-10-14
Applicant: Clarence D. Chang , Stuart D. Hellring
Inventor： Clarence D. Chang , Stuart D. Hellring
IPC: C07C51/285 , C07D315/00
CPC classification number: C07D315/00 , C07C51/285
Abstract: This invention provides process embodiments for shape-selective oxidation of cyclic ketones to lactone and/or omega-hydroxycarboxylic acid products in the presence of a zeolite catalyst composition such as ZSM-5 or zeolite Beta.Cyclohexanone can be converted to epsilon-caprolactone or 6-hydroxycaproic acid as a main product under selected conditions.
Abstract translation: 本发明提供了在沸石催化剂组合物如ZSM-5或沸石ββ存在下将环酮形式选择性氧化成内酯和/或ω-羟基羧酸产物的方法实施方案。 环己酮可以在选定的条件下转化为ε-己内酯或6-羟基己酸作为主要产物。
-
公开(公告)号：US4790928A
公开(公告)日：1988-12-13
申请号：US153395
申请日：1988-02-08
Applicant: Clarence D. Chang , Nai Y. Chen , Stuart D. Hellring , Ying-Yen P. Tsao , Dennis E. Walsh
Inventor： Clarence D. Chang , Nai Y. Chen , Stuart D. Hellring , Ying-Yen P. Tsao , Dennis E. Walsh
CPC classification number: B01J29/40 , C07C1/20 , B01J2229/26 , B01J2229/36 , B01J2229/42 , C07C2529/40
Abstract: The acidity of a zeolite catalyst is reduced by calcination in an essentially water-free atmosphere at temperatures above 700.degree. C., preferably from 725.degree. to 800.degree. C., to reduce the alpha value to less than about 10 percent of its original value. The low acidity catalysts produced in this way may be used for conversions requiring low acidity, shape selective catalysis, including dewaxing. The calcined, low acidity catalysts exhibit improved dewaxing activity.
Abstract translation: 沸石催化剂的酸度通过在高于700℃，优选725℃至800℃的温度下在基本无水的气氛中煅烧而降低，以将α值降低到其原始值的约10％ 。 以这种方式生产的低酸性催化剂可用于需要低酸度，形状选择性催化（包括脱蜡）的转化。 煅烧的低酸度催化剂表现出改善的脱蜡活性。
-
公开(公告)号：US5288927A
公开(公告)日：1994-02-22
申请号：US11574
申请日：1993-02-01
Applicant: Clarence D. Chang , Stuart D. Hellring
Inventor： Clarence D. Chang , Stuart D. Hellring
Abstract: There is provided a process for reacting phenol with butene or butanol over fairly large-pore zeolites to give butylphenol with high para-selectivity. Particular zeolites for use in this reaction include ZSM-12 and zeolite beta. A particular butene or butanol reactant is isobutanol. The product of this reaction may have a high content of the mono-alkylated, tert-butyl product.
Abstract translation: 提供了在相当大孔沸石上使苯酚与丁烯或丁醇反应以产生具有高对位选择性的丁基苯酚的方法。 用于该反应的特定沸石包括ZSM-12和β沸石。 特殊的丁烯或丁醇反应物是异丁醇。 该反应的产物可以具有高含量的单烷基化叔丁基产物。
-
Patent Agency Ranking
公开(公告)号：US5175375A
公开(公告)日：1992-12-29
申请号：US774959
申请日：1991-10-11
Applicant: Clarence D. Chang , Stuart D. Hellring
Inventor： Clarence D. Chang , Stuart D. Hellring
Abstract: The invention relates to producing ortho isopropyl phenol catalytically by contacting phenol with isopropanol or propylene, at a temperature of from about 200.degree. C. to about 300.degree. C., with ZSM-12 and zeolite Beta; and recovering ortho isopropyl phenol.
Abstract translation: 本发明涉及通过使苯酚与异丙醇或丙烯在约200℃至约300℃的温度下与ZSM-12和沸石β接触来催化生产邻苯甲基异丙苯; 并回收正丙基苯酚。
-
公开(公告)号：US4578521A
公开(公告)日：1986-03-25
申请号：US697804
申请日：1985-02-04
Applicant: Clarence D. Chang , Stuart D. Hellring
Inventor： Clarence D. Chang , Stuart D. Hellring
CPC classification number: C07C37/60 , B01J29/40 , B01J29/44 , B01J29/46 , B01J29/7492 , B01J29/7692 , B01J37/0036 , B01J37/0063 , Y02P20/52
Abstract: This invention provides a process in which phenol is reacted with hydrogen peroxide to form hydroquinone in the presence of a shape-selective zeolite catalyst such as HZSM-5. Essentially no catechol byproduct is produced.
Abstract translation: 本发明提供了一种在形状选择性沸石催化剂如HZSM-5的存在下使苯酚与过氧化氢反应形成氢醌的方法。 基本上没有产生邻苯二酚副产物。
-
公开(公告)号：US4846853A
公开(公告)日：1989-07-11
申请号：US23345
申请日：1987-03-09
Applicant: Clarence D. Chang , Stuart D. Hellring
Inventor： Clarence D. Chang , Stuart D. Hellring
IPC: B01D15/04 , B01D53/02 , B01J27/18 , C01B25/26 , C01B25/32 , C01B25/34 , C01G28/00 , C01G30/00 , C01G31/00 , C01G33/00 , C01G35/00 , C07F9/12 , C07F9/38 , C07F9/74 , C07F9/76
CPC classification number: B01J27/1806 , B01J27/1802 , B01J35/002 , C01B25/265 , C01B25/322 , C01B25/34 , C01G28/002 , C01G30/002 , C01G31/006 , C01G33/006 , C01G35/006 , C07F9/12 , C07F9/38 , C07F9/3834 , C07F9/743 , C07F9/76 , C01P2002/20 , C01P2002/72 , C01P2002/74 , C01P2002/88 , C01P2006/82
Abstract: Layered divalent metal hydrogen phosphate, MHPO.sub.4.nH.sub.2 O wherein M is a Group IIA or Group IIB element and n ranges from about 0 to 2, is prepared by hydrothermal treatment of an aqueous mixture containing a source of metal oxide, a source of phosphorus oxide and a source of hydrogen atoms, said aqueous mixture having an initial pH ranging between about 3 and 10.
Abstract translation: 通过水热处理含有金属氧化物源，磷氧化物源和水溶液的水性混合物制备层状二价金属磷酸氢盐，MHPO 4·nH 2 O，其中M为IIA族或IIB族元素，n为约0至2， 氢原子源，所述含水混合物的初始pH范围在约3和10之间。
-
公开(公告)号：US4783571A
公开(公告)日：1988-11-08
申请号：US153393
申请日：1988-02-08
Applicant: Clarence D. Chang , Stuart D. Hellring , Richard F. Socha
Inventor： Clarence D. Chang , Stuart D. Hellring , Richard F. Socha
CPC classification number: B01J29/40 , C07C1/20 , B01J2229/26 , B01J2229/36 , B01J2229/42 , C07C2529/40 , Y02P20/52
Abstract: The acidity of a zeolite catalyst is reduced by calcination in an essentially water-free atmosphere at temperatures above 700.degree. C., preferably from 725.degree. to 800.degree. C., to reduce the alpha value to less than 10 percent of its original value. The low acidity catalysts produced in this way may be used for isomerizing alkyl di-substituted aromatic compounds, especially xylenes, to products containing higher proportions of the para-isomers.
Abstract translation: 通过在高于700℃，优选725℃至800℃的温度下在基本上无水的气氛中煅烧来降低沸石催化剂的酸度，以将α值降低到其原始值的10％以下。 以这种方式生产的低酸性催化剂可用于将烷基二取代的芳族化合物，特别是二甲苯异构化成含有较高比例对位异构体的产物。
-
公开(公告)号：US4620044A
公开(公告)日：1986-10-28
申请号：US787931
申请日：1985-10-16
Applicant: Clarence D. Chang , Stuart D. Hellring
Inventor： Clarence D. Chang , Stuart D. Hellring
CPC classification number: C07C41/02 , C07C29/106 , C07B2200/09 , C07C2101/14 , Y02P20/52
Abstract: Hydrolysis of olefin oxides to their corresponding glycols was catalyzed by a steam stable zeolite, in its acid form, characterized by a constraint index within the range of about 1 to 12. Conversions of olefin oxide, in the presence of water, proceeded with minimal catalyst degradation. The acidity of the zeolite enabled the use of milder conditions than generally applied for this hydrolysis with no loss of desired selectivity. In addition, the described procedure offered the advantages typically associated with a heterogeneous catalyst (e.g., ease of separation, use of fixed bed reactor, etc.).
Abstract translation: 将烯烃氧化物水解成其相应的二醇是通过其酸形式的蒸气稳定沸石催化的，其特征在于约1至12范围内的约束指数。在水存在下，烯烃氧化物的转化以最小催化剂 降解。 沸石的酸度使得能够使用比通常用于该水解的温和条件，而不损失所需的选择性。 此外，所描述的方法提供了通常与非均相催化剂相关的优点（例如，易于分离，使用固定床反应器等）。
-
-
-
-
-
-
-
-
-
Search Results
206
records
(took 0.019 seconds)
