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7393969 Particular calixarenes method for production and use thereof  
The present invention relates to calix[4]arenes which effectively bind alkali metal ions (Na + , K + ) and transport them over phase boundaries, their preparation and use.
7393380 Method of guaranteeing at least one characteristic of a fluid used for producing food products  
A method for guaranteeing at least one characteristic of a fluid used for producing food products. This method utilizes a system for piping and delivering the fluid, combined with means for...
7390412 Method of managing the valves of a simulated moving bed separation system  
A method of managing the valves of a simulated moving bed separation system comprising at least one column of adsorbent beds split into several zones delimited by injection and draw-off points,...
7357871 Method for evaluating cation-exchange resin and method for controlling water treatment system using the same  
A method for a cation-exchange resin wherein a strongly acidic cation-exchange resin is contacted with an aqueous eluting solution and the polystyrenesulfonic acid being eluted from this resin is...
7326348 Method for removal and destruction of ammonia from an aqueous medium  
Methods and apparatuses are provided for the removal and destruction of ammonia from an aqueous medium. The methods and apparatuses include the removal of ammonia from an aqueous medium by contact...
7309436 Process for removing perchlorate ions from water streams  
Methods and systems for removing perchiorate from water are disclosed which involve the use of a plurality of vessels containing an ion exchange resin having affinity for perchiorate ions, and in...
7273555 Process for continuous ion exchange  
A process for continuous countercurrent ion exchange comprises piping a contaminated feed stream into a closed loop ion exchange contactor. The contactor is an ion exchange bed that has three or...
7264837 Resin deacidification of citrus juice and high acid maintenance  
The deacidification of citrus juice with ion exchange resin is described. Maintaining a high acid condition of the juice is achieved by passing the juice through regenerated resin that is...
7247242 Arsenic removal from water  
Methods for removing arsenic from water by addition of inexpensive and commonly available magnesium oxide, magnesium hydroxide, calcium oxide, or calcium hydroxide to the water. The hydroxide has a...
7238735 Process for producing aqueous dispersion of purified polytetrafluoroethylene  
A process for producing an aqueous dispersion of purified polytetrafluoroethylene (PTFE), comprising passing a crude aqueous dispersion of PTFE comprising from 10 to 50 mass % of PTFE fine...
7192526 Method of optimizing the operation of a xylene separation unit using simulated countercurrent  
Method of optimizing the operation of a unit intended for separation of the components of a feed (xylenes) by simulated countercurrent in hybrid operating mode. The method allows to minimize the...
6926835 Water softening device  
Sampling pipes 21 and 22 are inserted, separated from outlet openings, into first and second water softeners 4 and 11 . Raw water flows through first water softener 4 , and raw water does...
6911152 High-sensitivity method and apparatus for monitoring impurities in water  
Disclosed herein are a high-sensitivity method and apparatus for monitoring the concentration or inflow of impurities in circulating water of a circulating water system, which can remarkably...
6884356 Low-level boron detection and measurement  
Methods and apparatus ( 50 ) are disclosed for accurately measuring low concentrations of boron in deionized water utilizing the chemical reaction of boric acid with a polyol by injecting very...
6814872 Controller and method for controlling regeneration of a water softener  
Regeneration controller and method for controlling regeneration of a water softener are provided. The controller includes a water meter configured to output a signal indicative of the volume of...
6790362 Efficiency mode for water softener  
The present invention provides a controller for a water softener having an ion exchange resin capable of receiving hard water ions from hard water during a softening step and releasing the hard...
6767468 Method to remove uranium/vanadium contamination from groundwater  
A process for removing uranium/vanadium-based contaminants from groundwater using a primary in-ground treatment media and a pretreatment media that chemically adjusts the groundwater contaminant to...
6762057 Separation apparatus including porous silicon column  
A sample separation apparatus including a porous, or rough, capillary column. The porous capillary column includes a matrix which defines pores, and may be formed from a material such as porous...
6746609 Cooling tower water treatment  
A process for treating cooling tower water in a system which includes a recirculated evaporative cooling water stream and a source of make-up water. A side stream is taken off of the source of...
6736976 Fluid treatment process  
A fluid treatment device for reducing the level of a chemical compound in a fluid. The device comprises: a fluid inlet; a fluid outlet; a flow-through fluid treatment zone having comprising: a...
6706193 Method for recovering fluorinated emulsifiers from aqueous phases  
Fluorinated emulsifiers can be recovered from an aqueous phase containing small amounts of fluoropolymer particles by treating the aqueous phase with a small amount of a nonionic surface-active...
6696301 Method for determination of 5-hydroxycreatinine  
The present invention provides a highly sensitive and practical method for the determination of and the separation of 5-hydroxycreatinine from a sample of bodily fluid. The method of the present...
6652755 Simulated moving bed separation system  
A simulated moving bed separation system is provided, in which a fluid circulation flow path can be washed for a short time. This system is provided with a circulation flow path having two or more...
6652754 Process for determining by simulation the optimum stabilization conditions of a simulated moving bed separation system  
A process for determining by simulation the optimum stabilization conditions of a simulated moving bed (SMB) separation system allows to obtain set values for the purity of an extracted constituent...
6602421 Method for purifying contaminated groundwater using steel slag  
A method for purifying contaminated water involves passing contaminated water through a porous bed of steel slag. The steel slag can be used to remove various contaminants or reduce the...
6548307 Determination of logP coefficients via a RP-HPLC column  
This invention provides a RP-HPLC method, for the determination of logP oct values, which combines ease of operation and high accuracy, and which has been shown to work for a set of 36 molecules...
6541273 Multiple sorbent cartridges for solid phase extraction  
Methods and apparatus are disclosed which are useful for detecting the presence of various pesticides, including aryl pyrazoles such as fipronil. Pesticide residues are extracted from a variety of...
6531064 Method for removal of radionuclide contaminants from groundwater  
A system for remediating groundwater contaminated with radionuclides, consisting of an underground bed of crushed zeolites. Distribution pipes convey contaminated groundwater to the zeolite bed by...
6531063 Zeolite bed leach septic system and method for wastewater treatment  
A septic system and method for the removal of nitrogen contaminants, such as nitrates and ammonia, from a wastewater effluent. The system comprises one or more zeolite tanks which contain a...
6524863 High throughput HPLC method for determining Log P values  
Methods for calculating Log P values for organic compounds are disclosed. The methods allow identification of compounds in a library with a desired Log P value. The method can be used to minimize...
6521131 Combined oxidation and chelating adsorption system for removal of mercury from water  
The disclosed invention relates to a method of disposing of mercury-containing wastewater containing mercury-complexing materials, comprising the steps of treating wastewater containing mercury...
6498040 HPLC apparatus for fractioning and preparing sample for NMR spectrometry and method of changing mobile phase  
A high-performance liquid chromatography apparatus and a process for conversion of mobile phase, enabling a trace amount of sample for NMR analysis to be efficiently separated and prepared,...
6495371 Continuous electrolytically regenerated packed bed suppressor for ion chromatography  
For anion analysis, the method includes: (a) flowing an aqueous liquid sample stream containing anions to be detected and cation hydroxide through a separator bed, (b) flowing the aqueous effluent...
6482325 Apparatus and process for separation and recovery of liquid and slurry abrasives used for polishing  
Abrasive components and clear fluids are separated from an aqueous chemical mechanical slurry used for planarization of semiconductor materials, to permit the reuse of the clear liquid effluent in...
6475390 Process for the purification of nutrients from food process streams  
A separation process is described for separation of a nutrient from divalent ions of an aqueous solution. The aqueous solution is contacted with an ion exchange resin that includes monovalent ions...
6471870 Method intended to optimize the operation of a system for separating the constituents of a mixture  
A method for optimizing the operation of a simulated moving bed (LMS) type (closed or open) separation loop consisting of the interconnection in series of beds containing an adsorbent solid phase,...
6461858 Enzyme activated supports for enantiomeric separations  
An enzyme is immobilized on a solid support and can react selectively with one enantiomer in an enantiomeric mixture. A methods of using the enzyme immobilized solid support in conjunct with a...
6451210 Method and system to remotely monitor a carbon adsorption process  
In a method for treating a contaminated fluid stream, a characteristic of a flow of the composition to a carbon adsorption zone is sensed. The sensing is remotely monitored to determine a treatment...
6447685 Method for separating multi-phase mixtures of solvents having small differences in density  
The invention relates to an apparatus for separating water-containing solvent mixtures having two or more phases, using one or two gravitational separators ( 4, 16 ) and to the use of this...
6444127 Water conditioning unit control valve  
A highly versatile drive arrangement that drives a linearly reciprocating piston of a water conditioning unit control valve without imparting any significant side loads on the support structure for...
6398966 Method for removing oil from water including monitoring of adsorbent saturation  
Apparatus in fluid communication with a water leg portion of a hydrocarbon-contaminated water, e.g., a water leg portion of an offshore drilling or production platform sump tank for conveying...
6361696 Self-regenerative process for contaminant removal from liquid and supercritical CO2 fluid streams  
A method for the decontamination of fluid (liquid or supercritical) carbon dioxide fluid, especially of hydrocarbon contaminants, down to ≦100 ppb concentration are described. The critical...
6348153 Method for separating heavy isotopes of hydrogen oxide from water  
A process and apparatus for treating the heavy hydrogen isotope content of the contaminated water by contacting the contaminated water with a molecular separation material including a support...
6334886 Removal of corrosive contaminants from alkanolamine absorbent process  
A process is provided for removing CO 2 and/or H 2 S from a gas mixture containing as impurities CO 2 and/or H 2 S and at least one other impurity selected from the group consisting of a cyanide...
6316270 Acid base or generator  
A method for generating high purity acid or base in an aqueous stream for use as an eluent for chromatography and, particularly, ion chromatography. For generating a base for anion chromatography,...
6270675 Method for using a weak acid resin to remove dissolved metals from an aqueous-based stream  
A method (20) for using a weak acid resin (30) to remove dissolved metal from an aqueous-based stream (36), includes reneutralizing the weak acid resin (30) a plurality of times before regeneration...
6245128 Process for the reclamation of spent alkanolamine solution  
A process for the reclamation of spent aqueous alkanolamine solutions by contacting a spent aqueous alkanolamine solution with a strong base ion exchange resin for time sufficient to sorb from the...
6235200 Method and apparatus for controlling recharging of water conditioning apparatus  
A controller and corresponding method have been developed for controlling recharging of a water conditioning apparatus. The apparatus includes an input component for receiving measurements of water...
6216092 Dosage monitor for deionized water generator  
An apparatus and method are described for determining precisly when the resin column in a deionized water generator needs to be regenerated. This is achieved by causing the untreated water to pass...
6214233 Process for simultaneous oxidation of cyanide and recovery of heavy metals from waste water  
A waste water stream containing cyanide bearing compounds and heavy metals such as copper, silver, nickel, iron and the like is directed from a source after pH adjustment to a first tank containing...
Matches 1 - 50 out of 272 1 2 3 4 5 6 >