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| Number | Title | Issue Date |
| 8142661 | Residual stream upgrading in a propylene oxide-styrene monomer process In the co-production of propylene oxide and styrene monomer, there is produced a sodium-containing heavy residue stream previously suitable only as a low grade fuel. In accordance with the invention, the heavy residue stream is mixed with a hydrocarbon and an aqueou... | 03/27/2012 |
| 8105491 | Metabolic detoxification and method An extracorporeal filtration and detoxification system and method generally comprise separating ultrafiltrate from cellular components of blood, treating the ultrafiltrate independently of the cellular components in a recirculation circuit, recombining treated ultra... | 01/31/2012 |
| 8038885 | Formation and encapsulation of molecular bilayer and monolayer membranes Disclosed herein are compositions, methods, and devices related to bilayer and monolayer membranes, their encapsulation in a hydrogel, and their formation. Methods of using the disclose compositions and devices are also disclosed. ... | 10/18/2011 |
| 8038883 | Process to prepare salt The present invention relates to a process to prepare salt comprising the following steps: (i) preparing an aqueous salt solution containing at least 100 g/l of sodium chloride and at least 0.01 ppm of polyvalent cations by dissolving a sodium chloride source in ind... | 10/18/2011 |
| 8038884 | Process to prepare chlorine-containing compounds The present invention relates to process to prepare a chlorine-containing compound using an aqueous salt solution containing at least 100 g/l of sodium chloride and a contaminating amount of polyvalent cations comprising the steps of (i) preparing an aqueous salt so... | 10/18/2011 |
| 8002988 | Removal of contaminants from water using sugar based surfactant enhanced ultrafiltration Embodiments of the present invention relate to the removal of contaminants from water using sugar based surfactant enhanced ultrafiltration. Embodiments of the present invention are directed to a process for removal of an at least slightly water-soluble organ... | 08/23/2011 |
| 7943047 | Process for the treatment of wastewater from aldolization processes Process for the treatment of wastewater from an aldolization process which is contaminated with water-soluble and/or dispersed organic impurities by means of single-stage or multistage extraction with an organic liquid of the aldolization process wastewater which ha... | 05/17/2011 |
| 7906024 | Shear protectants in harvest microfiltration The addition of buffer to a harvest stream during diafiltration can cause increased turbidity and have other undesirable effects including limiting product recovery. Methods and compositions related to the use of a non-ionic surfactant are provided for improving dia... | 03/15/2011 |
| 7820051 | Recycling of electrochemical-mechanical planarization (ECMP) slurries/electrolytes A method, process and system for the recycling of electrochemical-mechanical planarization slurries/electrolytes as they are used in the back end of line of the semiconductor wafer manufacturing process is disclosed. The method, process and system includes with the ... | 10/26/2010 |
| 7736515 | Method for treatment of distillation waste from starchy materials There is provided a method for highly treating distillation waste generated in the process of separating a distilled alcoholic material after alcoholic fermentation of starchy materials. The method includes the steps of adding sodium polyacrylate to the distillation... | 06/15/2010 |
| 7713418 | Process for recovering organic compounds from aqueous streams containing same A method for a liquid-liquid extraction of hydrophilic organic compounds from aqueous solutions thereof is described. The method generally includes intermixing a sufficient quantity of a specified glycol ether with the aqueous liquor at a first temperature to form a... | 05/11/2010 |
| 7686957 | Method for treating fluids by coagulation on membranes The invention relates to a method for treating fluids, in particular waste waters involving coagulation/flocculation, clarification by filtration or flotation stages and a stage of filtration through micro-, ultra, and nanomembranes or of hyperfiltration. The invent... | 03/30/2010 |
| 7585415 | Fluid storage and purification method and system A method of storing and dispensing a fluid includes providing a vessel configured for selective dispensing of the fluid therefrom. A solvent mixture comprising an ionic liquid and a cosolvent is provided within the vessel. The fluid is contacted with the solvent mix... | 09/08/2009 |
| 7578941 | Length-based liquid-liquid extraction of carbon nanotubes using a phase transfer catalyst The present invention is generally directed to new liquid-liquid extraction methods for the length-based separation of carbon nanotubes (CNTs) and other 1-dimensional nanostructures. In some embodiments, such methods are directed to separating SWNTs on the basis of ... | 08/25/2009 |
| 7560028 | Complex admixtures of clathrate hydrates in a water desalination method Disclosed is a method that achieves water desalination by utilizing and optimizing clathrate hydrate phenomena. Clathrate hydrates are crystalline compounds of gas and water that desalinate water by excluding salt molecules during crystallization. Contacting a hydra... | 07/14/2009 |
| 7442309 | Methods for reducing boron concentration in high salinity liquid Methods of treating a high salinity liquid, such as seawater, containing boron are provided, including adjusting the pH of the liquid to about 8 to about 9.5, optionally adding a scale inhibitor to the liquid, passing the liquid through a reverse osmosis device, and... | 10/28/2008 |
| 7438817 | System and method for treatment of acidic wastewater A wastewater treatment system comprising separation unit operations inhibits or promotes the formation and precipitation of species by controlling the pH of wastewater to be treated entering into the separation unit operations. The separation unit operations include... | 10/21/2008 |
| 7399414 | Wet oxidation with the aid of a porous catalytic contactor A process for oxidation of oxidizable materials which are dissolved or suspended in a liquid phase. A contactor in the form of a porous membrane is used. The contactor is designed such that an oxidizing phase flows along one surface thereof while the phase to be oxi... | 07/15/2008 |
| 7384557 | Method and apparatus for removing solute from a solid solute-bearing product The process and apparatus are for removing a solute from a solute-bearing solid product by means of a solvent which remains in liquid state throughout the entire oil extraction process. In one embodiment, the solvent is normally in gazeous state at ambient temperatu... | 06/10/2008 |
| 7381332 | Solid-liquid separation of oil-based muds This invention relates to a method of achieving a solid-liquid separation of an oil-based mud comprising the step of contacting said oil-based mud with a water-in-oil emulsion comprising a polymer derived from at least one water-soluble monomer, where the polymer is... | 06/03/2008 |
| 7374685 | Process for separating metallic from semiconducting single-walled carbon nanotubes A method for separating semiconducting single-walled carbon nanotubes from metallic single-walled carbon nanotubes is disclosed. The method utilizes separation agents that preferentially associate with semiconducting nanotubes due to the electrical nature of the nan... | 05/20/2008 |
| 7371324 | Chemical process A process for extracting from aqueous solution the alkali metal or ammonium salt of a phenol, naphthol, anthrol or phenanthrol or the corresponding thiol, which comprises contacting an aqueous alkaline or neutral solution of the alkali metal or ammonium salt, in whi... | 05/13/2008 |
| 7368058 | Method of generating fresh water and fresh-water generator The present invention is a water processing method comprising the steps of separating boron-containing water in a reverse osmosis membrane module to provide a permeated water and subjecting a part of the obtained permeated water to boron removal using an adsorbent, ... | 05/06/2008 |
| 7351339 | Method for the separation of acids from chemical reaction mixtures by means of ionic fluids A process for removing acids from reaction mixtures using an auxiliary base, in which the auxiliary base: combines with the acid to form a salt which is liquid at temperatures at which the product of value does not significantly decompose during the removal of the l... | 04/01/2008 |
| 7338608 | Solid-liquid separation of oil-based muds This invention relates to a method of achieving a solid-liquid separation of an oil-based mud comprising the step of contacting said oil-based mud with a water-in-oil emulsion comprising a polymer derived from at least one water-soluble monomer, where the polymer is... | 03/04/2008 |
| 7332530 | Proton-conducting polymer membrane comprising a polymer with sulphonic acid groups and use thereof in fuel cells The present invention relates to a proton-conducting polymer membrane comprising polymers containing sulfonic acid groups, obtainable by a process comprising the steps of A) mixing vinyl-containing sulfonic acid with one or more aromatic tetraamino comp... | 02/19/2008 |
| 7332085 | Method for the purification of an α-hydroxy acid on an industrial scale The present invention relates to a method for the purification of an α-hydroxy acid on an industrial scale, in which the method involves: (a) subjecting an aqueous stream containing mainly α-hydroxy (1) to an extraction step, with the formation of an aqueous place... | 02/19/2008 |
| 7329356 | Flocculating agent for clarifying the water of man-made static water bodies A method is described for clarifying man-made static water bodies in which polyaluminum silicate sulfate is added to the water of the water body. Superior flocculation is achieved through the use of polyaluminum silicate sulfate which results in cleaner and more aes... | 02/12/2008 |
| 7326344 | Process for the removal of metals by biosorption from mining or industrial effluents A method and a plant to remove metals by biosorption from mining or industrial effluents comprising: (a) subject the effluent to at least one first stage of pre-treatment, selecting among: precipitation by pH rising, solvent extraction or solvent extraction on emuls... | 02/05/2008 |
| 7326355 | Mobile filtration facility and methods of use A mobile first housing bounds a substantially sterile clean room, a filtration room, and at least one change room communicating between clean room. A fluid filtration system is disposed within the first housing, the filtration system includes a first support contain... | 02/05/2008 |
| 7323198 | Antioxidants in clusters of structured water The invention relates to structured water and its antioxidant activity. In addition, the present invention relates to antioxidants incorporated within the cluster structure of either electropositive (S water) or electronegative (I water). The structured water, havin... | 01/29/2008 |
| 7321048 | Organometallic compound purification A method of purifying an organometallic compound by heating the organometallic compound in the presence of a trialkyl aluminum compound and a catalyst. ... | 01/22/2008 |
| 7320756 | Method and apparatus for treatment of feedwaters by membrane separation under acidic conditions A process for treatment of water via membrane separation equipment. A feedwater is maintained or adjusted to a pH of 4.3 or lower, and fed to a membrane separation system. In this manner, species such as TOC become more ionized, and (a) their rejection by the membra... | 01/22/2008 |
| 7318894 | Method and system for treating wastewater A method and system is disclosed for treating wastewater that utilizes membrane processes, preferably in combination with anaerobic biological treatment, to provide for economical and environmentally superior treatment without high production of biological solids. T... | 01/15/2008 |
| 7318899 | Method of separating isotopes A process in which isotopes of the same element belonging to the alkaline earth metals, transition elements and heavy metals having an atomic mass of less than 209, in particular lanthanide metals, are separated in an aqueous medium by treating an aqueous medium. | 01/15/2008 |
| 7318897 | Method of removing spectator ions from aqueous suspension of solid particles The present invention provides a method of removing spectator ions and contaminants from aqueous suspensions of solid particles. In accordance with the method of the invention, the solid particles are transported across a phase boundary into a non-polar organic solv... | 01/15/2008 |
| 7316919 | Composite materials comprising supported porous gels This invention relates to a composite material that comprises a support member that has a plurality of pores extending through the support member and, located in the pores of the support member, and filling the pores of the support member, a macroporous cross-linked... | 01/08/2008 |
| 7311838 | Method for the extraction and analysis of contents made from organic material The present invention relates to a process for isolating constituents from organic material, comprising the following process steps: a) freeze-drying of the organic material; b) extracting the constituents with a p... | 12/25/2007 |
| 7306735 | Process for the removal of contaminants from water The present invention provides a method of removing contaminants from water which includes the steps of first providing a water feed exposed to at least one hydrocarbon or chemical process. This water feed is set in-line with a reverse osmosis system which includes ... | 12/11/2007 |
| 7300578 | Apparatus for recycling of oil-based drilling fluid contaminated with water and water contaminated with oil based drilling fluid A mobile apparatus and method for recycling an invert emulsion based drilling fluid, in which the invert emulsion based drilling fluid includes an oleaginous component and an aqueous component. The apparatus includes an emulsion breaking tank, a water treatment tank... | 11/27/2007 |
