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| Number | Title | Issue Date |
| 7407623 | Steam condensate corrosion inhibitor compositions and methods Lecithin and 2-bromo-2-nitropropane-1,3 diol (BNPD) are used to inhibit corrosion in boiler steam condensate systems. Aqueous steam condensate corrosion inhibiting compositions of these components are also disclosed. BNPD is also used as a preservative in lecithin c... | 08/05/2008 |
| 7332459 | Method for scale inhibition in oil wells A method of inhibiting scale formation in a subterranean formation comprising: (a) injecting a suspension comprising particles of a controlled release scale inhibitor suspended in an aqueous medium into a formation through an injection well wherein the particles hav... | 02/19/2008 |
| 7279089 | Method for preventing fouling and corrosion caused by ammonium chloride and ammonium sulphates Method for preventing fouling and corrosion caused by ammonium chloride and ammonium sulphates, characterised in that it comprises injecting as an additive a choline or a derivative thereof. ... | 10/09/2007 |
| 7270314 | Method for treating a fluid to increase oxygen concentration and reduce surface tension using a direct current generator or an electromagnetic field generator A method for treating a fluid to increase oxygen content while reducing surface tension. The first step is flowing a fluid into a surface tension modification device at a first pressure and applying a direct current or an electromagnetic wave to modify a physical ch... | 09/18/2007 |
| 7264770 | Mitigation of stress corrosion cracking of structural materials exposed to a high temperature water A method for mitigating stress corrosion cracking of a component exposed to a high temperature water in a high temperature water system is provided. The method comprises the steps of lowering corrosion potential conditions to a desired low corrosion potential in the... | 09/04/2007 |
| 7238287 | Method for providing safe, clean chlorinated recreational water A solid formulation for use with sodium chloride and a chlorine generator to provide safe, clean chlorinated recreational water. The formulation comprises a chlorine stabilizing agent and a phosphate remover agent. An enhanced salt comprising a chlorine stabilizing ... | 07/03/2007 |
| 7220747 | Method for preventing damage to or rejuvenating a cellular blood component using mitochondrial enhancer This invention provides methods for treating cellular blood components and other cells containing mitochondria to improve vital qualities of the cells by contacting the cells with a mitochondrial enhancer to the cells. Mitochondrial enhancers prevent damage to and r... | 05/22/2007 |
| 7216710 | Thiol/aldehyde corrosion inhibitors Methods of inhibiting corrosion comprising providing a corrosive environment; adding a corrosion inhibitor comprising a reaction product of a thiol compound and an aldehyde compound. Methods of acidizing a near well bore region of a subterranean formation comprising... | 05/15/2007 |
| 7208648 | Minimizing corrosion in a methanol-to-olefin effluent processing system The present invention is directed toward reducing corrosion in a methanol-to-olefin (MTO) effluent processing system, and particularly in the condensate removal system thereof, by injecting a neutralization agent into one or more target regions of the MTO effluent p... | 04/24/2007 |
| 7179403 | Anti-corrosion solutions for air dehumidification systems Anti-corrosion solutions useful for air dehumidification processes are disclosed. Phosphonate corrosion inhibiting agents or mixtures thereof can be added to halide solutions of alkali metals, alkaline earth metals, or mixtures thereof, to minimize corrosion of the ... | 02/20/2007 |
| 7135604 | Process for separating carbon dioxide from an oxygenate-to-olefin effluent stream The present invention is a process for removal of carbon dioxide from a reactor effluent stream comprising water, carbon dioxide and olefin(s), where a portion of the carbon dioxide is removed in a quenching step with a quench medium and more carbon dioxide is remov... | 11/14/2006 |
| 7125483 | Corrosion control in olefin production plants A method for reducing acid corrosion and products of acid corrosion in a thermal cracking plant, the acid corrosion products being compounds of iron, chromium, nickel, lead, cadmium, manganese, mercury, magnesium, calcium, sodium, copper, zinc, lead, molybdenum, and... | 10/24/2006 |
| 7102049 | Process for operating a quench device in an oxygenate-to-olefin production unit The present invention is a process for producing olefin(s) from oxygenates that is more effective than previously known processes at removing carbon dioxide from the effluent stream by operating a quench tower at a pH greater than 7.0. ... | 09/05/2006 |
| 7094378 | Method and apparatus for inactivation of biological contaminants using photosensitizers Methods and apparatuses for treating fluids to inactivate microorganisms which may be present therein, said fluid containing one or more components selected from the group consisting of protein, blood and blood constituents are provided. The methods comprise adjusti... | 08/22/2006 |
| 7073588 | Esterquat acidic subterranean treatment fluids and methods of using esterquats acidic subterranean treatment fluids The present invention relates to acidic treatment fluids that comprise an acid fluid and an ester-containing quaternary ammonium compound (“esterquat”) and methods of their use. One embodiment of the present invention provides a method of inhibiting metal corros... | 07/11/2006 |
| 7049110 | Inactivation of West Nile virus and malaria using photosensitizers Methods and apparatuses are provided for inactivation of microorganisms in fluids or on surfaces. Preferably the fluids contain blood or blood products and comprise biologically active proteins. Preferred methods include the steps of adding an effective, non-toxic a... | 05/23/2006 |
| 7048786 | Apparatus for treating a fluid to increase oxygen concentration and reduce surface tension An apparatus for treating a fluid so as to increase oxygen content while reducing surface tension, The apparatus comprises a surface tension modification generator (STMG) comprising an STMG chamber for receiving a pressurized fluid at a first pressure. Probes dispos... | 05/23/2006 |
| 7008910 | Rust inhibitor An aqueous non-toxic biorational or environmentally safe composition to reduce or inhibit corrosion, rust and scale on metal surfaces comprising effective amounts of sorbic acid, salts of sorbic acid and/or derivatives thereof and a variety of hydrocarbons, esters, ... | 03/07/2006 |
| 7005555 | Process for separating and recycling oxygenate(s) to an oxygenate-to-olefin reactor The present invention is a process for producing olefin(s) from oxygenate(s). The process removes oxygenate(s) including carbon dioxide in the bottoms of the quench stream and recycles the oxygenate(s) back to the reactor. Carbon dioxide is removed from the quench b... | 02/28/2006 |
| 6811747 | Corrosion inhibitor The present invention relates to water treatment chemical formulations, and more particularly to chemical formulations used to treat water containing halogens as a sanitizing agent. The water treatment chemical formulations contain cyanuric acid and an alkali metal ... | 11/02/2004 |
| 6803057 | Hydrogen peroxide disinfectant with increased activity An acidic aqueous hydrogen peroxide solution is provided with improved disinfectant activity. Concentrated solutions preferably contain up to about 8 wt./wt. % H2O2 and as-used concentrations contain about 0.5% wt./wt. % H2O2. The solution also contains from 0.05 to... | 10/12/2004 |
| 6723257 | Corrosion inhibiting composition This invention relates to a corrosion inhibiting composition for use in commercial, institutional, and industrial water systems. The compositions comprise a mixture of (1) a fatty acid ester, and (2) a polyethylene glycol ester. These compositions are useful in inhi... | 04/20/2004 |
| 6676856 | Deacidification treatment of printed cellulosic materials The invention provides for improvements in composition and methods for the preservation of cellulosic materials through use of solutions comprising organic multi-valent metal carbonates, C1 -C4 alcohol having a moisture content of le... | 01/13/2004 |
| 6645400 | Corrosion control utilizing a hydrogen peroxide donor The present invention describes an innovative means of inhibiting corrosion of metals which experience active-passive transition in contact with an electrolyte. This invention incorporates hydrogen peroxide and/or peroxycarboxylic acids or their constitue... | 11/11/2003 |
| 6632294 | Corrosion protection of steel in ammonia/water heat pumps Corrosion of steel surfaces in a heat pump is inhibited by adding a rare earth metal salt to the heat pump's ammonia/water working fluid. In preferred embodiments, the rare earth metal salt includes cerium, and the steel surfaces are cerated to enhance th... | 10/14/2003 |
| 6623695 | Chemical modification of electrochemically activated solutions for improved performance An anticorrosive, penetration enhancing composition for cleaning decontaminating and rinsing includes electrochemically activated (ECA) water as the decontamination agent. The anticorrosive decontamination composition has, as the anticorrosive agent, a co... | 09/23/2003 |
| 6620340 | Method for providing a corrosion inhibiting solution The invention is directed to a method for providing a corrosion inhibiting aqueous solution which includes zinc orthophosphate where the zinc orthophosphate is solubilized. The invention is directed to a method of making a substantially contaminant-free, ... | 09/16/2003 |
| 6613249 | Corrosion inhibiting composition This invention relates to a corrosion inhibiting composition for use in commercial, institutional, and industrial water systems. The compositions comprise a mixture of (1) a fatty acid ester, and (2) a polyalkylene glycol, preferably polyethylene glycol. ... | 09/02/2003 |
| 6605254 | Method using ethylene oxide to fumigate corrosion promoting microbes The present invention relates to a method of fumigating closed systems susceptible to microbially influenced corrosion (MIC). The method is particularly useful in a method for mitigating MIC in fire protection sprinkler systems.... | 08/12/2003 |
| 6596175 | Method for treating stator cooling water to prevent clogging of strainer in the cooling system of an industrial electrical generator A method is disclosed to dissolve cupric oxide (CuO) deposits on a strainer in a stator water cooling system (SWCS) of an industrial electrical power generator. The method injects carbon dioxide (CO2) into the coolant to increase the CuO solubi... | 07/22/2003 |
| 6585933 | Method and composition for inhibiting corrosion in aqueous systems A method and composition for controlling corrosion of metals, particularly ferrous-based metals in contact with aqueous systems is disclosed, which includes treating industrial waters with a combination of a tetrazolium salt of the general formula: #... | 07/01/2003 |
| 6583091 | Method for inhibiting corrosion using 4-sulfophthalic acid The present invention relates to a method for inhibiting high temperature corrosion of corrosion prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of 4-sulfophthalic acid, typically up ... | 06/24/2003 |
| 6572789 | Corrosion inhibitors for aqueous systems A method of inhibiting corrosion in aqueous systems comprising adding to the system a composition comprising mono, bis and oligomeric phosphinosuccinic acid adducts and a method of preparing a composition comprising mono, bis and oligomeric phosphinosucci... | 06/03/2003 |
| 6558619 | High performance phosphorus-containing corrosion inhibitors for inhibiting corrosion drilling system fluids A corrosion inhibitor comprising a quantity of a phosphorylated oxyalkylated polyol at a pH of 5.0 or higher which produces a first level of corrosion loss in an oxygenated corrosive system under given conditions, and an amount of a passivating agent effe... | 05/06/2003 |
| 6548016 | Oil soluble hydrogen permeation inhibitor The present invention provides a composition and method for inhibiting hydrogen permeation in metal refinery equipment comprising incorporating into a product stream handled by said equipment a polyamine amide of 3-hydrocarbyl thiopropionic acid in an amo... | 04/15/2003 |
| 6540943 | Method of inhibiting corrosion of metal equipment which is cleaned with an inorganic acid The corrosion of metal equipment which is cleaned with an inorganic acid is inhibited by treating the equipment with a corrosion inhibitor composition containing at least one quaternary ammonium compound, a sulfur-containing compound and a nonionic surfac... | 04/01/2003 |
| 6511613 | Corrosion inhibitor The reaction of propargyl alcohol and iodine gives 2,3di-iodo-2-propen-1-ol, and it has been discovered that this compound is effective as an intermediate in a corrosion inhibitor for metals in acid media, particularly halogen acids. The compound provides... | 01/28/2003 |
| 6485683 | Headquarter vehicles for chemical biological nuclear defense Pyro sulfuric acid is employed to decontaminate air. Contaminated air is contacted with pyro sulfuric acid in a pyro sulfuric acid system, and released as decontaminated air. The system can be especially useful in a chemical/biological/nuclear defense mod... | 11/26/2002 |
| 6475431 | Corrosion inhibitors with low environmental toxicity A low toxic, biodegradable, water soluble and dispersant series of corrosion inhibitors are described. The method of inhibiting corrosion in aqueous medium by incorporating the inhibitor in PPM is provided. The corrosion inhibitor compromises an acrylic a... | 11/05/2002 |
| 6464901 | Halogen resistant copper corrosion inhibitors Non-halogen substituted, nitrogen containing, aromatic compounds are disclosed which are effective copper corrosion inhibitors in aqueous systems being treated with a halogen biocide. The materials of the present invention exhibit copper corrosion inhibit... | 10/15/2002 |
