16 patents
Utility
Methods for Removing Potassium, Rubidium, and Cesium, Selectively or In Combination, from Brines and Resulting Compositions Thereof
12 Oct 23
The invention generally relates to methods of removing potassium, rubidium, and/or cesium, selectively or in combination, from brines using tetrafluoroborates.
Stephen Harrison, C.V. Krishnamohan Sharma, Raghunandan Bhakta, Pei-Yu Lan
Filed: 16 Mar 23
Utility
Preparation of Lithium Carbonate from Lithium Chloride Containing Brines
28 Sep 23
This invention relates to a method for the preparation of lithium carbonate from lithium chloride containing brines.
Stephen Harrison
Filed: 10 Apr 23
Utility
Method and System for Stimulating Hydrocarbon Production
21 Sep 23
A method for stimulating hydrocarbon production within an open-hole portion of a well, the method comprising ejecting a fluid from at least one perforated drill pipe into an open-hole portion of a well.
Khalil HASSAN, Ahmed AL KIYUMI
Filed: 28 May 21
Utility
Photochlorination of Chloroform to Carbon Tetrachloride
29 Jun 23
A method of producing carbon tetrachloride, the method comprising the step of reacting chlorine with chloroform in the presence of electromagnetic radiation within a reaction mixture that includes the chlorine, the chloroform, and carbon tetrachloride, where the concentration of chloroform is less than 5000 ppm by weight relative to the weight of the reaction mixture, where the reaction mixture includes at least stoichiometric levels of chlorine relative to chloroform, where the electromagnetic radiation creates chloride radicals, and where the reaction mixture is well mixed.
Robert L. ZELLER, Darrell HOLLIS, Keith S. KRAMER, Brian CALDERWOOD, Rodney L. KLAUSMEYER
Filed: 19 Feb 23
Utility
Preparation of Lithium Carbonate from Lithium Chloride Containing Brines
23 Mar 23
This invention relates to a method for the preparation of lithium carbonate from lithium chloride containing brines.
Stephen Harrison
Filed: 21 Sep 22
Utility
Treated Geothermal Brine Compositions with Reduced Concentration of Silica, Iron and Lithium
16 Mar 23
This invention relates to treated geothermal brine compositions containing reduced concentrations of lithium, iron and silica compared to the untreated brines.
Stephen Harrison, John Burba, III
Filed: 31 Aug 22
Utility
Refrigeration-integrated Hydrocarbon Collection System and Method of Operation
2 Mar 23
A method for recovering associated gaseous hydrocarbons from a well for producing liquid hydrocarbons, the method comprising (i) providing gaseous hydrocarbons from a hydrocarbon well; (ii) providing a cryogenic liquid from an air separation unit or an associated nitrogen liquefaction facility within proximity of the hydrocarbon well; (iii) liquefying the gaseous hydrocarbons at a hydrocarbon liquefaction facility within proximity to the hydrocarbon well to thereby produce a liquefied hydrocarbon gas, where heat associated with the gaseous hydrocarbons is transferred to the cryogenic liquid; and (iv) transferring the liquefied hydrocarbon gas to an air separation unit or nitrogen liquefaction facility.
John M. REPASKY
Filed: 11 Feb 21
Utility
Process for the Conversion of Carbon Dioxide
3 Nov 22
A process for the production of syngas, the process comprising (i) reacting at least a portion of carbon dioxide with hydrogen within an initial reactor to produce an initial product stream including carbon monoxide, water, unreacted carbon dioxide, and unreacted hydrogen; and (ii) reacting at least a portion of the unreacted carbon dioxide and unreacted hydrogen within a reactor downstream of the first reactor to thereby produce a product stream including carbon monoxide, water, unreacted carbon dioxide, and unreacted hydrogen.
John M. REPASKY, Robert L. ZELLER, III
Filed: 28 Sep 20
Utility
Methods Involving Cements That Employ Carbon Dioxide As a Reactant
16 Jun 22
A method of cementing an annular space between a pipe string and a well bore, the method comprising the steps of (a) providing a cement composition including a calcium-deficient calcium silicate; (b) mixing the cement composition with water to form a cement slurry; (c) mixing the cement slurry composition with carbon dioxide form a foamed cement; and (d) placing the foamed cement in the annular space between the pipe string and the wellbore.
Kenneth M. COWAN, Robert L. ZELLER, III, Elias R. CALLAHAN, III, James S. WILLIS
Filed: 1 Apr 20
Utility
Photochlorination of Partially-chlorinated Chloromethanes to Carbon Tetrachloride
21 Apr 22
A method of producing carbon tetrachloride includes providing a chloromethanes stream, combining the chloromethanes stream with chlorine and additional carbon tetrachloride to form a reaction mixture, wherein the reaction mixture includes at least stoichiometric levels of chlorine, introducing electromagnetic radiation to the reaction mixture and subjecting the reaction mixture to suitable reaction conditions to form product carbon tetrachloride, and collecting a product stream including the product carbon tetrachloride.
Robert L. ZELLER, III, Darrell G. HOLLIS, Keith S. KRAMER, Brian CALDERWOOD, Rodney L. KLAUSMEYER, John L. DAWKINS
Filed: 10 Jan 20
Utility
Method for Making 1,1,3,3-TETRACHLOROPROPENE
16 Dec 21
A process for the manufacture of 1,1,3,3-tetrachloropropene, the process comprising dehydrochlorinating 1,1,1,3,3-pentachloropropane, where said step of dehydrochlorinating 1,1,1,3,3-pentachloropropane takes place in the presence of an oxidizing agent and in the presence of a Lewis acid, and where the oxidizing agent is chlorine and the Lewis acid is ferric chloride.
Rodney L. KLAUSMEYER, Darrell G. HOLLIS, Keith S. KRAMER, John L. DAWKINS, Derrek Rae BURROWS
Filed: 27 Aug 21
Utility
Process for the Production of Chlorinated Hydrocarbons
18 Nov 21
A process of the type for producing 1,1,1,2,3-pentachloropropane by introducing 1,1,1,3-tetrachloropropane, chlorine, and Lewis acid catalyst, optionally in the presence of carbon tetrachloride, the improvement comprising introducing the Lewis acid as a slurry within a chlorinated hydrocarbon.
John L. DAWKINS, Darrell HOLLIS, Keith S. KRAMER, Brian CALDERWOOD, Michael A. GARMON
Filed: 24 Jul 17
Utility
Catalyst and Process for Oxychlorination of Ethylene to Dichloroethane
5 Aug 21
In an oxychlorination process of the type where ethylene is converted to 1,2-dichloroethane in the presence of a supported copper catalyst, the improvement comprising: the use of a supported catalyst prepared by (i) impregnating, within a first step, an alumina support with a first aqueous solution including copper, an alkaline earth metal, and an alkali metal to thereby form a first catalyst component; and (ii) impregnating, within a subsequent step, the first catalyst component with a second aqueous solution including copper and alkaline earth metal, where the second aqueous solution is substantially devoid of alkali metal, to thereby form the supported catalyst.
Keith KRAMER
Filed: 19 Apr 21
Utility
Photochlorination of Chloroform to Carbon Tetrachloride
14 Jan 21
A method of producing carbon tetrachloride, the method comprising the step of reacting chlorine with chloroform in the presence of electromagnetic radiation within a reaction mixture that includes the chlorine, the chloroform, and carbon tetrachloride, where the concentration of chloroform is less than 5000 ppm by weight relative to the weight of the reaction mixture, where the reaction mixture includes at least stoichiometric levels of chlorine relative to chloroform, where the electromagnetic radiation creates chloride radicals, and where the reaction mixture is well mixed.
Robert L. ZELLER, Darrell HOLLIS, Keith S. KRAMER, Brian CALDERWOOD, Rodney L. KLAUSMEYER
Filed: 28 Sep 20
Utility
Method for Making 1,1,3,3-TETRACHLOROPROPENE
10 Jun 20
A process for the manufacture of 1,1,3,3-tetrachloropropene, the process comprising dehydrochlorinating 1,1,1,3,3-pentachloropropane.
Rodney L. KLAUSMEYER, Darrell G. HOLLIS, Keith S. KRAMER, John L. DAWKINS, Derrek Rae BURROWS
Filed: 16 Feb 20
Utility
Methods of Making Chlorinated Hydrocarbons
8 Apr 20
Methods for the manufacture of 1,1,1,2,3-pentachloropropane from 1,1,1,3-tetrachloropropane and chlorine are disclosed.
Richard L. WILSON, Rodney L. KLAUSMEYER, John Lee DAWKINS, Daniel D. ROHRBACK, James S. STRATHE, Lloyd B. BRANAM
Filed: 4 Dec 19
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