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7438129 Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation  
A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Feedwater is then acidified and...
7428926 Water treatment method for heavy oil production  
A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Pretreated produced water is...
7413661 Method for purifying semiconductor gases  
This invention is directed a method for producing an ultra-high purity semiconductor gas such as ammonia gas. The method includes the steps of directing an ammonia fluid having a liquid phase...
7404898 Method and installation for the production of lime water from deionised water  
A method of producing lime water comprising deionising dilution water by membrane filtration, distillation or an ion exchange resin and adding silicate ions to the deionised water. Thereafter, the...
7326349 Method and apparatus for purifying alcoholic liquors  
After passing alcoholic liquors 20 through an HSO 3 type strongly basic anion exchange resin layer 14 , or after adding an HSO 3 salt to alcoholic liquors; the alcoholic liquors are passed...
7306738 Method of deionizing solution yielded by polyester decomposition with ethylene glycol  
There is provided a method for deionizing a decomposition produced solution resulting from decomposition of a polyester by ethylene glycol. The ester interchange reaction and hydrolysis reaction...
7300743 Radiation durable organic compounds with high transparency in the vacuum ultraviolet, and method for preparing  
This invention concerns radiation durable organic compositions which are well-suited for use in 157 nm lithography by virtue of their high transparency and excellent radiation durability, and to a...
7279076 Apparatus and method for handling easily polymerizable substance, apparatus for extracting liquid from apparatus under reduced pressure, and process for producing easily polymerizable substance  
In an apparatus capable of distilling and refining an easily polymerizable substance, piping is performed so that when a strainer in action is switched to a backup strainer, the strainer can be...
7276139 Method for concentrating solution  
An low concentration dope is fed through a nozzle into a concentrating apparatus, and flash evaporation of the low concentration dope is performed at an end of the nozzle. The low concentration...
7264735 Method for producing drinking water  
The present invention relates to a method for producing drinking water having a reduced cluster width and being capable of emitting FIR (Far Infrared Rays) energy by using a solution derived by...
7153416 Apparatus for removing radioactive antimony from waste streams  
A method and related apparatus for monitoring and eliminating gas build-up in an anion exchange column comprised of an anion exchange material placed within a vessel and a liquid layer comprising...
7150320 Water treatment method for heavy oil production  
A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. If necessary, the pH is then...
7108771 Method for removal of impurities in cyclic siloxanes useful as precursors for low dielectric constant thin films  
A process for reducing the level(s) of water and/or other impurities from cyclosiloxanes by either azeotropic distillation, or by contacting the cyclosiloxane compositions with an adsorbent bed...
7077201 Water treatment method for heavy oil production  
An evaporation based method of treating produced water from heavy oil production. A produced water from heavy oil recovery operations treated by first removing oil and grease to a desired level,...
7018541 Removal of fluorinated surfactants from waste water  
The present invention provides a method of removing a fluorinated surfactant from waste water comprising fluoropolymer particles. The method comprises (i) adding a non-fluorinated surfactant to the...
7011760 Carbon nanotube-containing structures, methods of making, and processes using same  
Carbon nanotube structures are disclosed in which nanotubes are disposed over a porous support such as a foam, felt, mesh, or membrane. Techniques of making these structures are also disclosed. In...
6991733 Process for removing organics from ultrapure water  
In order to reduce a total organic carbon (TOC) in ultrapure water to a level less than 1 ppb, several cycles of ozone contact/UV irradiation treatments are carried out in sequence. Preferably, the...
6977047 Method and system for the manufacture of pharmaceutical water  
A method is provided for manufacturing pharmaceutical water by means of distillation and sanitizing the equipment used in said manufacturing. The method comprises the removal of suspended solids...
6964730 Purification apparatus and method  
Disclosed is a purification apparatus and method. The purification apparatus includes: a mobile phase distillation part for distilling a mobile phase; a mobile phase liquefaction part for...
6960302 Fluid treatment system  
A fluid treatment system comprising at least two cylindrical vessels, wherein each vessel contains at least one treatment medium selected from ion exchange resins, polymeric adsorbents, inorganic...
6949192 Apparatus for producing USP or WFI purified water  
An improved water purification system for production of USP purified water and/or USP water for injection include backwashable, chlorine tolerant microfilter or ultrafilter for initial filtration...
6932889 Water treatment device and method  
A point of use water purification unit for continuously and completely purifying water at all point of use for removing all chemicals, killing all microorganisms; the device having a computer...
6824689 Carbon nanotube-containing structures, methods of making, and processes using same  
Carbon nanotube structures are disclosed in which nanotubes are disposed over a porous support such as a foam, felt, mesh, or membrane. Techniques of making these structures are also disclosed. In...
6733637 Process for producing ultra-high purity isopropanol  
A process for producing high purity isopropyl alcohol. In one embodiment, the process includes the steps of: (a) feeding a feed stream comprising at least about 99.9 wt. % isopropyl alcohol into a...
6733636 Water treatment method for heavy oil production  
A method of treating produced water from heavy oil production to provide feedwater for the production of high quality steam. A produced water from heavy oil recovery operations is initially treated...
6716344 Liquid-solids circulating fluidized bed  
A continuous Liquid-Solids Circulating Fluidized Bed (LSCFB) preferably for use as an ion exchanger consists of two fluidized bed columns, a fluidized bed adsorber (downer) operating in...
6711532 Method and apparatus for predicting a distillation temperature range of a hydrocarbon-containing compound  
A method and apparatus for predicting a distillation temperature range of a hydrocarbon-containing compound comprising gasoline and/or naphta. The said hydrocarbon-containing compound is analyzed...
6685839 Apparatus and method for removing solvent residues  
In the field of biomass extraction, there is a need for effective removal of solvent from spent biomass material. An apparatus for removing solvent residues includes a vessel ( 11 ) for containing...
6649027 Water reclamation system  
A water reclamation system for a closed environment includes a mixer that receives brine. A processor is downstream of the mixer, with the processor distilling substantially salt-free water from...
6576138 Method for purifying semiconductor gases  
This invention is directed a method for purifying an impure gas to produce an ultra-high purity gas comprising the steps of a) passing the impure liquefied gas through a first adsorption means to...
6565753 Method for purification of deicing fluid for recovery of glycol  
In the purification of deicing fluid for recovery of glycol, initially solid particles are separated, then dissolved organic compounds and positive and negative ions are separated by an ion...
6436244 Process for the elution of fluorinated emulsifiers  
Fluorinated emulsifier acids bound to an anion exchanger resin can be eluted using a mixture of water, a compound of the formula M—X, in which M is an alkali metal or an alkylammonium ion, and X...
6416676 Deionized water degasification for semiconductor fabrication  
In microelectronics (semiconductor) processing, pitting and voiding of aluminum and aluminum alloys by deionized (DI) water is prevented. The present method and apparatus degasifies the DI water to...
6398917 Apparatus for the purification of commercially available diphenyl-p-phenylenediamine (DPPD)  
An apparatus for the purification of crude N,N′-diphenyl-p-phenylenediamine (DPPD) in which there is an extraction unit containing a liquid permeable container and an adsorption layer downstream...
6217771 Ion exchange treatment of extraction solvent to remove acid contaminants  
A method for removing corrosive contaminants from a polar extraction solvent comprises adding water to the solvent to provide a mixture. Then the mixture is contacted with a basic ion exchanger...
6200429 Method for trioxane isolation  
A process for isolating trioxane from an aqueous mixture which includes trioxane, water and formaldehyde, including removing trioxane from the mixture by pervaporation, and subjecting the mixture...
6080313 Point-of-use water purification system with a cascade ion exchange option  
A modular water treatment and purification system, suitable for home use, is connected to a water supply and contains a closed fluid treatment circuit extending to a water outlet. The closed fluid...
6027651 Process for regenerating spent solvent  
A process for regenerating a solvent from a waste extract after use in a remediation process includes monitoring the water content and the amount of organic contaminants in the extract. If the...
5965029 System and method for treating an oil gas well stream  
The invention pertains to a system and process for removing contaminants from an oil and gas well bore stream. The system comprises a vessel adapted to receive the stream from the well bore. The...
5951829 Separation of heteropoly compounds from polyethers, polyesters and polyether esters  
A method of separating heteropoly compounds from mixtures of polyethers, polyesters and/or polyether esters, a protic component and heteropoly compounds, wherein the protic component is removed...
5942121 Method and apparatus for filtering, degassing, dehydrating and removing products of ageing in petroleum oils  
The invention relates to separating different substances, more concretely, to a method and apparatus for filters, degassing, dehydrating and removing products of ageing in insulating and other...
5935441 Water purification process  
Ultrapure water containing less than 10 ppt total ions, other than hydrogen ion and hydroxide ion is produced by passing deionized water through a system comprising an ultrafiltration step, an...
5876685 Separation and purification of fluoride from industrial wastes  
A method for the removal and purification of substantially all of the fluoride ions contained in a solution containing greater than 10 parts per million (ppm) fluoride ion, a mixture of other...
5837106 Halohydrocarbon recovery process  
A halohydrocarbon solvent recovery process. The process in one embodiment included heating a gross mixture including solvent, fatty-acid impurities and water in a bath to vaporize at least a...
5814224 Method for complex processing of sea-water  
A method for complex procesing of sea-water comprises the successive steps of mechanical filtration, calcium separation on modified zeolite, magnesium separation on weak-acid cation exchanger and...
5744040 Apparatus and method for removing dissolved hydrogen sulfide from water  
An apparatus for removing dissolved hydrogen sulfide from water including an atomizing tank defining an open end. A manifold is positioned adjacent the open end. The manifold defines an inlet...
5685957 Method for removing acidic and salt impurities from an aqueous condensed phase containing dimethylcarbonate  
Acidic and salt impurities are removed from a condensed phase obtained from dimethyl carbonate synthesis by obtaining the condensed phase from the effluent of a reactor in which carbon monoxide,...
5665239 Processes for deionization and demineralization of fluids  
Processes for deionization and demineralization of a fluid containing ions comprising: (a) Loading an amine or ammonia buffer onto a first weakly acidic cation exchange resin to occupy cation...
5571419 Method of producing pure water  
Raw water is made acidic so that the pH is not more than 4.5 and heated in the presence of an oxidizing agent to decompose TOC components in the raw water, and then deionized, thereby producing...
5547582 Process for the collection and treatment of biological waste  
A multiple-stage process for the collection and treatment of biological waste, and for rendering the biological waste biologically inactive for the safe and economical environmentally...
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