Two-stage oil shale retorting process and disposal of spent oil shale
Referring to the schematic block diagram of FIG. 1, which illustrates one embodiment of a process according to principles of this invention, a first stage operation 10 of a two-stage retorting proces... Read More
Inventors: Tassoney, Joseph P.;, Assignee: Occidental Oil Shale, Inc. (Grand Junction, CO) |
In situ retorting of oil shale with pulsed combustion
OF THE PREFERRED EMBODIMENT Referring now to the drawing, an underground, modified in situ, oil shale retort 10 located in a subterranean formation 12 of oil shale is covered with an overburden 14. R... Read More
Inventors: Forgac, John M.; Hoekstra, deceased, Gerald B.;, Assignee: Standard Oil Company (Indiana) (Chicago, IL) |
Method of using rods resistant to hydrosulfuric acid
I claim: 1. A method of using a high-strength steel rod in an acid environment, comprising immersing and using said rod in an acid-environment in which the H.sub.2 S partial pressure in gaseous phase ... Read More
Inventors: Tiberg, Jan;, Assignee: SKF Steel Engineering AB (Hofors, SE) |
Electrode system for an electro-chemical sensor for measuring vapor concentrations
The object of the present invention is to provide an improved electrode for as electrochemical sensor. In accomplishing this and other objects, there has been provided, in accordance with the present ... Read More
Inventors: Cates, Marion H.; Szonntagh, Eugene L.;, Assignee: Honeywell Inc. (Minneapolis, MN) |
Catalytic dewaxing of lubes in reactor fractionator
It has now been demonstrated that a hydrotreater/hydrocracker combination can be so operated that it functions as distillation column as well as a reactor to discharge separate distillate and residual... Read More
Inventors: Chen, Nai Y.; Wang, Ikai;, Assignee: Mobil Oil Corporation (New York, NY) |
Two stage system for catalytic conversion of olefins with distillate and gasoline modes
What is claimed is: 1. A continuous process for converting an olefinic feedstock containing ethylene and C.sub.3.sup.+ olefins by catalytic oligomerization to produce heavier hydrocarbons in the gasol... Read More
Inventors: Tabak, Samuel A.;, Assignee: Mobil Oil Corporation (New York, NY) |
Catalytic conversion of olefins to higher hydrocarbons
What is claimed is: 1. A continuous process for converting lower olefins to higher hydrocarbons with optional operation to maximize either distillate or gasoline product comprising: (a) combining a pr... Read More
Inventors: Owen, Hartley; Marsh, Susan K.; Wright, Bernard S.;, Assignee: Mobil Oil Corporation (New York, NY) |
Method and apparatus for quantitative analysis of weakly ionized anions or cations
OF THE PREFERRED EMBODIMENTS The present method and apparatus are well adapted for the rapid and automated analysis of a mixture of weak anions (e.g., organic carboxylates) or weak cations (e.g., amm... Read More
Inventors: Rich, Jr., William E.; Johnson, Edward L.; Sidebottom, Thomas O.;, Assignee: Dionex Corporation (Sunnyvale, CA) |
Combination apparatus and method for chromatographic separation and quantitative analysis of multiple ionic species
AND OBJECTS It is an object of the invention to provide a technique for the total quantitative analysis of strong and/or weak cations or anions in a sample solution. It is a further object of the inve... Read More
Inventors: Rich, Jr., William E.; Smith, Frank C.; McNeill, Janet L.;, Assignee: Dionex Corporation (Sunnyvale, CA) |
Method and apparatus for ion analysis and detection using reverse mode suppression
OF THE PREFERRED EMBODIMENTS The system of the present invention is useful for determining a large number of weak ionic species so long as the species to be determined are solely anions or solely cat... Read More
Inventors: Pohl, Christopher A.; Slingsby, Rosanne W.; Johnson, Edward L.; Angers, Leilani;, Assignee: Dionex Corporation (Sunnyvale, CA) |
Analysis of liquid streams using tubing with protuberances on its inner wall
In accordance with the invention, tubing (or a fiber) with protuberances, with or without ion exchange sites, (herein "the present tubing") is used to disrupt laminar flow in a liquid chemical analysi... Read More
Inventors: Slingsby, Rosanne W.; Pohl, Christopher A.;, Assignee: Dionex Corporation (Santa Clara, CA) |
Process and apparatus for electrically desorbing components selectively sorbed on an electrolytically conducting barrier
What is claimed is: 1. A method of recovering biospecifically, sorbable components dispersed in an aqueous solution comprising: (a) contacting said solution as a first solution with an electrolyticall... Read More
Inventors: Goldstein, Arthur L.; Haber, Edgar; Mandle, Robert J.;, Assignee: Ionics Incorporated (Watertown, MA) |
Electrodeionization apparatus
The present invention provides a method and apparatus capable of continuously producing water of up to about 10 meg-ohm cm quality or higher over long periods of time while avoiding serious reduction ... Read More
Inventors: Giuffrida, Anthony J.; Jha, Anil D.; Ganzi, Gary C.;, Assignee: Millipore Corporation (Bedford, MA) |
Method of and apparatus for chromatographic analysis
To effect these objects, the present invention provides a novel ion-chromotography system for analyzing one or more ionic species of a given polarity in solution. The system employs an ion-exchange re... Read More
Inventors: Ross, Jr., James W.; Goldring, Lionel S.; Riseman, John H.;, Assignee: Orion Research Puerto Rico, Inc. (Rio Piedras, PR) |
Depletion compartment and spacer construction for electrodeionization apparatus
The present invention provides a spacer for a depleting compartment of an electrodeionization apparatus which promotes even distribution of liquid through the compartment. The spacer comprises a shape... Read More
Inventors: Siu, Kitty K.; Jha, Anil D.; Ganzi, Gary C.;, Assignee: Millipore Corporation (Bedford, MA) |
Apparatus for determination of microconstituents
OF PREFERRED EMBODIMENTS Turning to FIG. 2, tanks 11a and 11b are used, respectively, for storing an eluate solution and a removing solution, which are pumped respectively, by a liquid feed pump 12a,... Read More
Inventors: Hanaoka, Yuzuru; Murayama, Takeshi; Matsuura, Tamizo;, Assignee: Yokogawa Electric Corporation (Tokyo, JP) |
Modified membrane suppressor and method for use
OF THE PREFERRED EMBODIMENTS The system of the present invention is useful for determining a large number of ionic species so long as the species to be determined are solely anions or solely cations.... Read More
Inventors: Pohl, Christopher; Slingsby, Roseanne W.; Stillian, John R.; Gajek, Ryszard;, Assignee: Dionex Corporation (Sunnyvale, CA) |
Aqueous carbon dioxide monitor
The present invention solves the aforementioned problems by providing a method and apparatus for measuring low levels of carbon dioxide dissolved in water. The present invention utilizes membrane sepa... Read More
Inventors: Connolly, Dennis J.;, Assignee: The Babcock & Wilcox Company (New Orleans, LA) |
Ion chromatography system using electrochemical suppression and detector effluent recycle
In accordance with the invention, apparatus and methods are provided for streamlining and lowering the cost of operation of ion chromatography as well as improving the system detection limits. The app... Read More
Inventors: Stillian, John R.; Barreto, Victor M.; Friedman, Keith A.; Rabin, Steven B.; Toofan, Mahmood;, Assignee: Dionex Corporation (Sunnyvale, CA) |
Process and device for demineralizing aqueous solutions using ion exchangers
It is therefore the primary object of the present invention to provide a process and apparatus for treating aqueous solutions, especially demineralization, using known cation and anion exchange materi... Read More
Inventors: Kunz, Gerhard;, Assignee: |
Intermittent electrolytic packed bed suppressor regeneration for ion chromatography
The present invention relates to ion chromatography using electrochemical regeneration of a packed bed suppressor. Method and apparatus are provided using electrolytic chemical regeneration of a packe... Read More
Inventors: Small, Hamish; Riviello, John M.; Rabin, Steven B.;, Assignee: Dionex Corporation (Sunnyvale, CA) |
Adsorption process for organic base recovery from aqueous brine solutions
Preferred Embodiments Preferably the process of the present invention is utilized for the adsorption, desorption and recovery of one or more amines, amine salts, substituted guanidines, substituted g... Read More
Inventors: Phelps, Peter David; Caringi, Joseph John; Flowers, Larry Ivis; Boden, Eugene Pauling; Ramsey, David Lee;, Assignee: General Electric Company (Schenectady, NY) |
Modified organophilic clay complexes, their preparation and non-aqueous systems containing them
What is claimed is: 1. An organophilic clay gellant useful for gelling organic liquids which comprises the reaction product of: (a) a smectite-type clay having a cation exchange capacity of at least 7... Read More
Inventors: Mardis, Wilbur S.; Finlayson, Claude M.;, Assignee: NL Industries, Inc. (New York, NY) |
Organoclay compositions manufactured with organic acid derived ester quaternary ammonium compounds
What is claimed: 1. An improved organophilic clay useful in providing rheological properties to non-aqueous fluid systems comprising the reaction product of: (a) one or more smectite-type clays having... Read More
Inventors: Mardis, Wilbur; Sanchez, Jose; Basson, Henry;, Assignee: Rheox, Inc. (Hightstown, NJ) |
Process for preparing organoclays for aqueous and polar-organic systems
The invention is directed to a process for preparing organoclays as thixotropic agents which can be used to control the rheology of aqueous-based systems, such as paints. More particularly, the invent... Read More
Inventors: Chaiko, David J.;, Assignee: The University of Chicago (Chicago, IL) |
Polymer-stabilized metal colloid solutions, method for producing said solutions and use of the same as catalysts for fuel cell
What is claimed is: 1. A process for preparing metal colloid solutions by reacting a platinum compound and, if desired, one or more compounds of Rh, Ru, Ir or Pd with a reducing agent, wherein at leas... Read More
Inventors: Bonsel, Harald; Deckers, Gregor; Frank, Georg; Millauer, Hans; Soczka-Guth, Thomas;, Assignee: Axiva GmbH (DE) |
Process for producing liquid and, optionally, gaseous products from gaseous reactants
We claim: 1. A process for producing liquid and, optionally, gaseous hydrocarbon products from gaseous reactants, which process comprises feeding synthesis gas comprising mainly carbon monoxide and hy... Read More
Inventors: Jager, Berend; Steynberg, Andre P.; Inga, Juan R.; Kelfkens, Renus C.; Smith, Michael A.; Malherbe, Francois E. J.;, Assignee: Sasol Chemical Industries (Proprietary) Limited (Transvaal, ZA) |
Surface devulcanization of cured rubber crumb
OF THE INVENTION The surface of virtually any type of sulfur-cured rubber crumb can be devulcanized by utilizing the process of this invention. For instance, it can be used to devulcanize natural rub... Read More
Inventors: Benko, David Andrew; Beers, Roger Neil;, Assignee: The Goodyear Tire & Rubber Company (Akron, OH) |
Ion chromatography using frequent regeneration of batch-type suppressor
In accordance with the invention, ion chromatography methods and apparatus are provided using a batch-type suppressor (e.g. PBS) with significant advantages compared to (a) systems using PBS as perfor... Read More
Inventors: Small, Hamish; Riviello, John; Pohl, Christopher A.;, Assignee: Dionex Corporation (Sunnyvale, CA) |
Intermittent electrolytic packed bed suppressor regeneration for ion chromatography
The present invention relates to ion chromatography using electrochemical regeneration of a packed bed suppressor. Method and apparatus are provided using electrolytic chemical regeneration of a packe... Read More
Inventors: Small, Hamish; Riviello, John M.; Rabin, Steven B.;, Assignee: Dionex Corporation (Sunnyvale, CA) |
Liquid Purification 
