| Patent Number |
Title Of Patent |
Date Issued |
| 6063970 |
Process for preparing fluorinated aliphatic compounds |
May 16, 2000 |
| A process is disclosed for the preparation of a chlorofluoro aliphatic hydrocarbon having the formulawherein a and c are 0 or the integer 1 or 2 and b is the integer 1, 2 or 3. The process comprises reacting a chlorinated fluoroolefinic hydrocarbon of the formulawherein a and c are as pr |
| 6034016 |
Method for regenerating halogenated Lewis acid catalysts |
March 7, 2000 |
| A method for removing high molecular weight solid and liquid tars and oligomers from halogenated Lewis acids catalysts is disclosed. The Lewis acids incorporating such tars and oligomers are treated with an oxidizing agent such as chlorine, a halogen fluoride or mixtures thereof for a ti |
| 6013600 |
Alumina bodies containing alkali or alkaline earth metal compounds |
January 11, 2000 |
| A method of producing activated alumina bodies having alkali or alkaline earth metal compounds incorporated therein, the bodies suitable for adsorption and having increased capacity for adsorption of gases and the like. The method comprises providing a source of activated alumina powder |
| 5981814 |
Vapor phase process for preparing fluorinated aliphatic compounds |
November 9, 1999 |
| A process is disclosed for the preparation of a fluorinated aliphatic hydrocarbon having the formulawherein a is 0 or the integer 1 or 2 and b is 0 or the integer 1, 2 or 3. The reaction occurs in the vapor phase. A chlorofluoro olefin of the formulawherein c is 0 or the integer 1 or 2, |
| 5973215 |
Process for separating and recovering hydrogen fluoride from mixtures |
October 26, 1999 |
| A process is disclosed for the liquid phase separation and recovery of hydrogen fluoride from a mixture comprising hydrogen fluoride and a fluorinated organic hydrocarbon. The process requires that the mixture be treated with a sufficient amount of a coupled phase-separating agent co |
| 5944962 |
Process for photochlorination |
August 31, 1999 |
| An improvement in the process for the photochlorination of liquid mixtures of 2 to 6 carbon-containing aliphatic hydrofluorohalocarbons or hydrofluorocarbons and unsaturated hydrocarbons with ultraviolet light is disclosed. The improvement comprises using ultraviolet light emitted from |
| 5935894 |
Alumina based adsorbent containing alkali metal compounds |
August 10, 1999 |
| A method of preparing an alumina-based bodies suitable for use as an adsorbent or catalyst, the method comprising providing a source of activated alumina powder for forming into bodies and providing an aqueous solution containing at least two different alkali metals, at least one alk |
| 5910616 |
Vapor phase process for preparing fluorinated aliphatic compounds |
June 8, 1999 |
| A process is disclosed for the preparation of a fluorinated aliphatic hydrocarbon. The process utilizes a C.sub.1 to C.sub.6 hydrocarbon substituted with a halogen selected from the group consisting of chlorine, bromine and iodine as the starting material. The alkyl hydrocarbon is re |
| 5874658 |
Purification of organic fluorine compounds |
February 23, 1999 |
| A method is disclosed for separating a mixture of at least one hydrofluorocarbon from hydrogen fluoride. The method comprising treating said mixture with a compound selected from the group consisting of an alkanolamine of formulawhere R is C.sub.1 to C.sub.6 linear or branched alkylene s |
| 5856265 |
Alumina body formation using high pH |
January 5, 1999 |
| A method of producing activated alumina bodies having alkali or alkaline earth metal compounds incorporated therein, the bodies having increased surface area and crush resistance, the method comprising providing a source of activated alumina powder and an aqueous solution having an a |
| 5791153 |
High efficiency air conditioning system with humidity control |
August 11, 1998 |
| A heat recovery, dehumidifier and cooling system for ventilating fresh air to a conditioned space. The system is comprised of an enthalpy wheel or body for treating incoming fresh air to remove heat and moisture therefrom and means such as a duct for introducing fresh air to a first segm |
| 5777185 |
Production of organic fluorine compounds |
July 7, 1998 |
| A process is disclosed for hydrofluorinating an olefinic hydrocarbon of the formulawhere X, X' and X" are the same or different and are hydrogen or halo and R' is hydrogen or C.sub.1 -C.sub.6 alkyl, with hydrogen fluoride. The process is carried out by admixing the olefinic hydrocarbon w |
| 5750010 |
Process for photochlorination |
May 12, 1998 |
| An improvement in the process for the photochlorination of liquid mixtures of 1,1-dichloro-1-fluoroethane and unsaturated hydrocarbons with ultraviolet light is disclosed. The improvement comprises using ultraviolet light emitted from an ultraviolet light source having an ultraviolet |
| 5727394 |
Air conditioning system having improved indirect evaporative cooler |
March 17, 1998 |
| A method of conditioning a process stream of air in an air conditioning system wherein a process stream of air is dehumidified and cooled to provide a conditioned stream of air for introducing to a conditioned space. The method comprises the steps of providing an adsorption wheel hav |
| 5696309 |
Purification of halogenated carbon compounds |
December 9, 1997 |
| Disclosed is a method of chlorinating vinylidene chloride contained in a solution 1,1 -dichloro-1-fluoroethane to provide a chlorinated compound having a boiling point different from the 1,1-dichloro-1-fluoroethane to permit separation therefrom. The method comprises providing a solution |
| 5689020 |
High temperature chlorination process for the preparation of polychloroolefins |
November 18, 1997 |
| A process is disclosed for preparing a compound selected from the group consisting of 1,1,3,3-tetrachloropropene and 1,3,3,3-tetrachloropropene. The process comprisesa. admixing a hydrocarbon compound selected from the group consisting of propene, 1-chloropropene, 3-chloropropene, 1,1-di |
| 5685897 |
High strength, low pressure drop adsorbent wheel |
November 11, 1997 |
| A sensible and latent heat exchange or adsorbent media formed from an improved desiccant or adsorbent paper having higher strength and thinner gauge to provide increased area of media, the media having a multiplicity of passageways therethrough through which an air stream can flow. The |
| 5684219 |
Process for preparing fluorinated aliphatic compounds |
November 4, 1997 |
| A process is disclosed for the preparation of a fluorinated aliphatic olefin having the formulawherein a is 0 or the integer 1 or d and b is 0 or the integer 1, 2 or 3.In the first step of the process, a chlorinated olefinic hydrocarbon of the formulawherein c is 0 or the integer 1 and d is |
| 5660048 |
Air conditioning system for cooling warm moisture-laden air |
August 26, 1997 |
| A method of conditioning a process stream of air in an air conditioning system wherein a process stream of air is dehumidified and cooled to provide a conditioned stream of air for introducing to a conditioned space, the method comprises the steps of providing an enthalpy wheel compr |
| 5650221 |
High strength, low pressure drop sensible and latent heat exchange wheel |
July 22, 1997 |
| A sensible and latent heat exchange or adsorbent media formed from an improved desiccant or adsorbent paper having higher strength and thinner gauge to provide increased area of media, the media having a multiplicity of passageways therethrough through which an air stream can flow. The |
| 5616819 |
Process for preparing fluorinated aliphatic compounds |
April 1, 1997 |
| A process is disclosed for the preparation of a fluorinated aliphatic olefin having the formulawherein a is 0 or the integer 1 or 2 and b is 0 or the integer 1, 2 or 3.In the first step of the process, a chlorinated olefinic hydrocarbon of the formulawherein c is 0 or the integer 1 and d is |
| 5580369 |
Adsorption air conditioning system |
December 3, 1996 |
| An improved adsorbent composition for a natural gas-fired, adsorption cooling system that readily adsorbs moisture from ambient air, while being readily regenerated at high temperatures up to 200.degree.-300.degree. C. in order to provide an enhanced coefficient of performance to the sys |
| 5569798 |
Chlorination of halogenated carbon compounds for purification purposes |
October 29, 1996 |
| A method of chlorinating vinylidene chloride contained in a solution 1,1-dichloro-1-fluoroethane to provide a chlorinated compound having a boiling point different from the 1,1-dichloro-1-fluoroethane to permit separation therefrom, the method comprising providing a solution containi |
| 5542968 |
Enthalphy Wheel |
August 6, 1996 |
| Disclosed is a gas permeable, sensible and latent heat exchange media having a multiplicity of passageways therethrough through which an air stream can flow, the sensible and latent heat exchange media. The heat exchange media comprises a fibrous support material, a finely powdered d |
| 5514307 |
Process for the reducing emissions during prilling of material such as ammonium nitrate |
May 7, 1996 |
| This invention relates to an improvement in prilling whereby water is atomized into a prill tower to affect faster solidification of the prill, and in particular, the outside surface of the prill by providing an increased rate of surface cooling while reducing the required air flows in |
| 5449843 |
Method for preparing 1,1-dichloro-1-fluoroethane |
September 12, 1995 |
| A more efficient reaction mechanism is provided for producing 1,1-dichloro-1-fluoroethane (HCFC-141b) by reacting vinylidene chloride with hydrogen fluoride in the liquid phase in the presence of a catalyst and a sulfone solvent or a nitroalkane or nitroarene solvent. In particular, |
| 5419138 |
Pellet extruding machine |
May 30, 1995 |
| An extruder for converting pressurized liquid CO.sub.2 feed into dry ice pellets of predetermined shape and size, wherein the CO.sub.2 snow formation, CO.sub.2 snow compaction, and dry ice pellet extrusion phases occur simultaneously to achieve production rates on the order of 700-1000 |
| 5355962 |
Amplified mixer-blower mechanism and uses thereof |
October 18, 1994 |
| An amplified mixer-blower device for discharging a feed material at high velocity and enhanced volume using a venturi transport principle. Preferably, carbon dioxide vapor is used as a means for propelling the feed material which may have a different phase of the same composition of |
