Patents Examined by Edward J. Meros
  • Patent number: 4568654
    Abstract: A novel crystalline zeolite identified as zeolite ZSM-51 and its method of preparation is disclosed. The use of the material as a catalyst is also disclosed.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: February 4, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Ernest W. Valyocsik
  • Patent number: 4568533
    Abstract: The invention relates to a method of providing a flowable carbon material, in particular for filling hollow spaces for the purpose of heat-insulation. A method of that type is to be laid out in a manner such that it is possible to produce thereby distributable or flowable carbon materials, which are less contaminating, in particular, which develop less dust and may also be manipulated in a simpler manner, with the efforts from the standpoint of procedural technique involved to produce these products are to be, if at all, only insignificantly greater than the efforts required in regard to the above-mentioned products. To this end, it is suggested to impregnate with a binder material paper particles in platelet form having an average diameter of from 0.5 to 5 mm and an average thickness of from 0.01 to 1 mm and/or in strip form having an average length of from 5 to 30 mm, an average width of from 0.5 to 10 mm and an average thickness of from 0.01 to 1 mm, which include an ash content of from 0.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: February 4, 1986
    Assignee: C. Conradty Nurnberg GmbH & Co KG
    Inventor: Franz Schieber
  • Patent number: 4567029
    Abstract: Novel class of crystalline microporous metal aluminophosphate compositions containing as lattice constituents in addition to AlO.sub.2 and PO.sub.2 structural units, one or a mixture of two or more of the metals Mg, Mn, Co and Zn in tetrahedral coordination with oxygen atoms. These compositions are prepared hydrothermally using organic templating agents and are suitably employed as catalysts or adsorbents.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: January 28, 1986
    Assignee: Union Carbide Corporation
    Inventors: Stephen T. Wilson, Edith M. Flanigen
  • Patent number: 4565683
    Abstract: Disclosed is a method for producing carbon filaments by dissociating a carbon-containing gas at a temperature to about 800.degree. C. in the presence of iron monoxide. The iron monoxide can be produced by treating a sample of substantially pure iron with steam at a temperature from about 540.degree. C.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: January 21, 1986
    Assignee: Exxon Research and Engineering Co.
    Inventors: David J. C. Yates, Rees T. Baker
  • Patent number: 4565681
    Abstract: This invention relates to a new and useful improvement in synthesizing crystalline ZSM-5 zeolite and to use of said zeolite prepared in accordance herewith as a catalyst for hydrocarbon conversions. The synthesis utilizes dimethylethylpropylammonium ion as the directing agent.
    Type: Grant
    Filed: May 3, 1984
    Date of Patent: January 21, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Gunter H. Kuhl
  • Patent number: 4562166
    Abstract: There is provided a method and a reaction mixture for preparing the zeolite, Dodecasil-1H, with a methylazabicyclononanium directing agent. There is also provided the Dodecasil-1H zeolite in as-synthesized form prepared by this method.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: December 31, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Ernest W. Valyocsik
  • Patent number: 4562055
    Abstract: A zeolite similar to ZSM-5, having lattice spacings (d-values), shown in Table 1, of the X-ray powder diffraction pattern, and a ferrierite zeolite are prepared by crystallizing a homogeneous phase compound of a granular amorphous aluminosilicate in water or in an aqueous solution of an alkali metal hydroxide and/or an alkali metal silicate.
    Type: Grant
    Filed: September 20, 1983
    Date of Patent: December 31, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Junji Arika, Hiroshi Miyazaki, Kazushige Igawa, Keiji Itabashi
  • Patent number: 4559213
    Abstract: There is disclosed a process for preparing a ZSM-12 crystalline zeolite wherein the organic template used in the synthesis has the formula: ##STR1## wherein n=4-10. The template, designated herein DABCO-C.sub.n -diquat, is obtained from a dihalide salt of the template or from a hydroxide thereof.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: December 17, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Gunter H. Kuhl
  • Patent number: 4557917
    Abstract: An improved process for preparing ZSM-5 zeolite, and a product thereof, is disclosed. The process uses an organic anionic directing agent of the formula ##STR1## wherein A is a cation having a valence m, R' is an inorganic or an organic acid moiety, and R" is a linear or branched aliphatic, aromatic or alkyl aromatic group. The ZSM-5 zeolite is synthesized at the SiO.sub.2 /Al.sub.2 O.sub.3 molar ratios of 30 to 1000.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: December 10, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Ernest W. Valyocsik, Eric G. Derouane
  • Patent number: 4557919
    Abstract: A process for producing a crystalline zeolite TPZ-12, which comprises maintaining a starting mixture at a temperature of at least 80.degree. C. for a period sufficient to produce zeolite crystals, said starting mixture consisting of(a) a substance capable of yielding silica under the reaction conditions,(b) a water-soluble alkali metal compound,(c) water, and(d) a diammonium compound represented by the following general formula ##STR1## wherein R.sub.1 and R.sub.2 are identical or different and each represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, p and q are identical or different and each represents an integer of 4 or 5, n is 4, 5 or 6, and y represents an anion having a valence of m, and additionally, if desired,(e) a substance capable of yielding alumina under the reaction conditions,in the particular quantities.
    Type: Grant
    Filed: April 10, 1984
    Date of Patent: December 10, 1985
    Assignee: Teijin Petrochemical Industries Ltd.
    Inventors: Koji Sumitani, Tokuji Sakai, Yasuo Yamasaki, Tamio Onodera
  • Patent number: 4555393
    Abstract: A continuous fiber composite having carbon microfibers dispersed in the resin filling the interstices between the continuous fibers to enhance the transverse properties of the composite. The carbon microfibers are made by soaking carbon fibers in an intercalating acid solution comprising a mixture of fuming nitric and sulfuric acid to weaken the intercrystallite bonds. Gentle stirring of solution separates the carbon microfibers from the host fibers. The microfibers are then separated from the intercalating acid solution and washed to remove the residual acid.
    Type: Grant
    Filed: June 21, 1984
    Date of Patent: November 26, 1985
    Assignee: Bendix Corporation
    Inventors: Ian W. Sorensen, Robert S. Kiwak
  • Patent number: 4554143
    Abstract: Novel class of crystalline microporous ferroaluminophosphate compositions containing as lattice constituents in addition to AlO.sub.2 and PO.sub.2 structural units, ferric and/or ferrous iron in tetrahedral coordination with oxygen atoms. These compositions are prepared hydrothermally using organic templating agents and are suitably employed as catalysts or adsorbents.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: November 19, 1985
    Assignee: Union Carbide Corporation
    Inventors: Celeste A. Messina, Brent M. Lok, Edith M. Flanigen
  • Patent number: 4554146
    Abstract: A zeolite of the L type is prepared by crystallization from a reaction mixture aged at 70.degree. to 260.degree. C. containing water, a source of silica or germania, a source of alumina or gallia, a source of potassium (and optionally up to 40 mole percent of a source of sodium, based on total mole percent of potassium and sodium), and a salt of a tetraalkylammonium cation wherein at least two alkyl groups have more than one carbon atom. Most preferably the cation is tetraethylammonium cation.
    Type: Grant
    Filed: November 10, 1983
    Date of Patent: November 19, 1985
    Assignee: Exxon Research and Engineering Co.
    Inventor: David E. Vaughan
  • Patent number: 4554145
    Abstract: This invention relates to a new method for synthesis of zeolite Beta, to the zeolite Beta product of that new method and to use of said zeolite Beta prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion. In the disclosed method for preparing zeolite Beta a dibenzyl-1,4-diazabicyclo [2.2.2] octane compound is added to the synthesis reaction mixture.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: November 19, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Mae K. Rubin
  • Patent number: 4552739
    Abstract: A novel method for preparing ZSM-12 utilizing diethyldimethylammonium cation in the forming solution.
    Type: Grant
    Filed: May 3, 1985
    Date of Patent: November 12, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Gunter H. Kuhl
  • Patent number: 4552738
    Abstract: This invention relates to a new and improved form of crystalline silicate identified as zeolite ZSM-12, to a new and useful improvement in synthesizing said crystalline silicate and to use of said crystalline silicate prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion. In the disclosed method for preparing zeolite ZSM-12, a benzyltriethylammonium compound is added to the synthesis reaction mixture.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: November 12, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Mae K. Rubin
  • Patent number: 4552731
    Abstract: A synthetic crystalline zeolite is provided characterized by having a composition, in terms of mole ratios of oxides, in the range:0.9 to 1.1 M.sub.2/n O:Al.sub.2 O.sub.3 :2.5 to 5.1 SiO.sub.2 :xH.sub.2 Owherein M is at least one exchangeable cation, n is the valence of M, and x is 0 to 6, and characterized by having a specified X-ray powder diffraction pattern. The zeolite may be prepared by crystallization from a reaction mixture of KOH (and optionally a minor amount of NaOH), water, a source of silica, and a source of alumina preferably derived from kaolin or halloysite. Most preferably, the source of alumina is metakaolin and the source of silica is potassium silicate.
    Type: Grant
    Filed: November 10, 1983
    Date of Patent: November 12, 1985
    Assignee: Exxon Research and Engineering Co.
    Inventor: David E. Vaughan
  • Patent number: 4551322
    Abstract: There are produced crystalline zeolite powders of Type A with the composition1.0.+-.0.2 M.sub.2/n O:Al.sub.2 O.sub.3 :1.85.+-.0.5 SiO.sub.2.y H.sub.2 Owhere M is a metal cation, n is its valence and y has a value up to 6 with 50 weight % of the particles not over 4.9.mu. and with a particle spectrum______________________________________ Fraction (.mu.) Portion (weight %) ______________________________________ <3 10 to 60 <5 55 to 95 <10 93 to 99 <15 96 to 100 ______________________________________by hydrothermally crystallizing a SiO.sub.2, Al.sub.2 O.sub.3, Na.sub.2 O and water containing alkali aluminate, water, silicate synthesis mixture with an optional tempering step wherein in a given case during the crystallization or tempering step instead of stirring shearing forces are employed. The process comprises mixing with stirring (1) an aqueous alkali silicate solution and (2) an aqueous sodium hydroxide with a NaOH content of 0.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: November 5, 1985
    Assignees: Degussa Aktiengesellschaft, Henkel Kommandelgesellschaft auf Aktien
    Inventors: Hans Strack, Wolfgang Roebke, Dieter Kneitel, Ehrfried Parr
  • Patent number: 4551321
    Abstract: A process for the preparation of zeolites of the ZSM-5 structural type from a mixture of SiO.sub.2 and Al(OH).sub.3 by hydrothermal crystallization in an aqueous amine solution, in the absence of alkali, at from 100.degree. to 200.degree. C., wherein the crystallization is carried out in the presence of a triamine, tetraamine and/or higher amine and the reaction mixture is formulated to have an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio defined by an equation which involves the chain length and number of amine groups of the amine employed, as well as to have certain molar ratios of H.sub.2 O/amine and amine/Al.sub.2 O.sub.3, and the use of these zeolites as catalysts for the conversion of alcohols and/or dialkyl ethers to olefins and/or aromatics.
    Type: Grant
    Filed: March 18, 1983
    Date of Patent: November 5, 1985
    Inventors: Laszlo Marosi, Hans-Ulrich Schlimper, Matthias Schwarzmann, Joachim Stabenow
  • Patent number: 4545969
    Abstract: In the treatment of a zeolite suspension to separate solids from the mother and/or washing liquor, a vibrator is used in the suction drying zone of a vacuum filter in order to partially liquefy the filter cake material through the introduction of shear forces into the solidified filter cake, so that further separation of the pure liquid phase can take place in the suction drying zone of the vacuum filter.
    Type: Grant
    Filed: August 31, 1983
    Date of Patent: October 8, 1985
    Assignee: Henkel KGaA
    Inventors: Friedrich W. Diekotter, Edgar Honges, Gunther Just, Heinz-Gerd Smolka, Willi Wust