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8153437 |
DNA-based molecular switches and uses thereof
Disclosed are nucleic acid-based molecular switches that respond to changes in pH. The switches may be used in DNA nanodevices. The switches may also act as sensors for measuring the pH of a...
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8119573 |
Corrosion inhibitors
Provided is an anticorrosive composition for use in aqueous salt solutions. The composition contains an antimony compound and at least two other components selected from morpholine derivatives,...
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8105988 |
Corrosion inhibitors for a fluid
One or more methods for inhibiting corrosion in a fluid that contain a composition with a specified generic formula are disclosed. The fluid can be contained in an oil or gas pipeline or refinery.
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8105987 |
Corrosion inhibitors for an aqueous medium
One or more methods for inhibiting corrosion in an aqueous medium that contain a composition with a specified generic formula are disclosed. The aqueous medium can be contained in an oil or gas...
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8101125 |
Reducing corrosion in a turbomachine
A method and system for reducing corrosion in a turbomachine. The method may include providing a process gas to a condenser, wherein the process gas contains a condensate having a pH level that is...
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8066902 |
Methods for inhibiting corrosion in brazed metal surfaces and coolants and additives for use therein
Disclosed are coolants comprising brazed metal corrosion inhibitors. In one embodiment, the disclosed brazed metal corrosion inhibitor will comprise a polycarboxylic acid functional compound having...
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8062586 |
Methods and compositions for inhibiting metal corrosion
Methods and compositions are provided that inhibit the corrosion of metal surfaces by aqueous acid solutions. The inhibition is basically achieved by the addition of a reaction product of an alpha,...
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8022017 |
Method of using dithiazine to inhibit corrosion
Corrosion of metallic tubulars in an oil, gas or geothermal well may be inhibited by introducing into the well a dithiazine of the formula: wherein R is selected from the group consisting of a C1...
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8022018 |
Quaternized dithiazines and method of using same in treatment of wells
Corrosion of metallic tubulars in an oil, gas or geothermal well may be inhibited by introducing into the well a dithiazine or dithiazine of the formula: wherein R is selected from the group...
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7989403 |
Corrosion inhibitors containing amide surfactants for a fluid
A method of inhibiting corrosion in a fluid is disclosed. The method comprises: adding to the fluid an effective corrosion inhibiting amount of a synergist, a synergist when H2S is present in the...
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7951347 |
Sour-gas sweetening solutions and methods
A sour gas sweetening solution comprises an aqueous solution of a silicon-containing compound and an amine-containing compound. The silicon-containing compound is preferably maintained at a...
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7829750 |
Fluidizing a population of catalyst particles having a low catalyst fines content
The present invention relates to processes for fluidizing a population of catalyst particles that are depleted of catalyst fines. In one embodiment, the process includes providing a plurality of...
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7704748 |
Gas analyzer for measuring the flammability of mixtures of combustible gases and oxygen
A novel Flame Temperature Analyzer (FTA) method and apparatus for measuring combustible gas concentration and oxygen content in a sample gas includes supplying a mixture of oxidant and fuel to a...
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RE41109 |
Acidic composition of matter for use to detroy microorganisms
A composition of matter and the method of making that provides a low pH acidic composition that is useful for destroying microorganisms that are undesirable and useful for destroying or reducing...
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7585460 |
Method for inhibiting the biological acidification of water in contact with materials containing sulfur
The invention relates to a method for inhibiting the biological acidification of water which is in contact with materials containing sulfur in reduced form or with elemental sulfur, susceptible to...
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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...
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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...
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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...
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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,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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6458320 |
Galvanized metal corrosion inhibitor
This invention relates to a galvanized metal, typically steel, corrosion inhibitor concentrate comprising (a) an amine salt of a fatty acid or an amine salt of a derivative of a fatty acid, (b)...
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6447717 |
Composition and method for inhibition of metal corrosion
Carbon dioxide induced corrosion of ferrous metals in aqueous systems is inhibited by treatment of the aqueous system with corrosion inhibiting amino thiol and amino disulfide compounds....
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6379612 |
Scale inhibitors
The present invention provides compositions of oil-soluble inhibitors suitable for use in inhibiting oil field scale formation. The compositions comprise an acid form of a known scale inhibitor and...
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6365100 |
Polymethylenepolyamine dipropionamides as environmentally safe inhibitors of the carbon corrosion of iron
Polymethylenepolyaminedipropionamides are carbonic corrosion inhibitors devoid of toxicity to the marine environment.
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6346217 |
Composition and method for cleaning drink water tanks
A composition and method for cleaning drink water tanks. The composition contains in combination amidosulfonic acid, nitrilotriacetic acid, isopropanol and water. The composition is applied to...
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6346279 |
Hydrogen peroxide disinfectant with increased activity
An acidic aqueous hydrogen peroxid solution is provided, with improved disinfectant activity. Concentrated solutions preferably contain up to about 8% and as-used concentrations contain about 0.5%...
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6261346 |
Method for protecting metal surfaces against corrosion in liquid or gaseous media
A process useful for protecting metal surfaces against corrosion in is presented involving: (a) forming a corrosion inhibitor having a compound corresponding to formula (I): ##STR1## where R1, R2...
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6242011 |
Acidic composition of matter for use to destroy microorganisms
A composition of matter and the method of making that provides a low pH acidic composition that is useful for destroying microorganisms that are undesirable and useful for destroying or reducing...
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6187262 |
Inhibition of corrosion in aqueous systems
A method for controlling corrosion of metals, particularly ferrous-based metals in contact with aqueous systems is disclosed, which includes treating industrial waters with a tetrazolium salt of...
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6171521 |
Zwitterionic water-soluble substituted imine corrosion inhibitors
This invention is directed to a zwitterionic water-soluble imine of formula: ##STR1##wherein R1 is heterocyclyl, heteroaryl, aryl, arylalkyl, cycloalkyl or lower alkyl; R2 is alkyl, alkenyl,...
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