Abstract: A method of increasing a solubility of a manganese oxide includes contacting the manganese oxide with an acid component in the presence of a dissolution accelerator that includes at least one of hydrazine, a hydrazine derivative, or a hydrazide. Also disclosed is a drilling fluid containing a carrier; MnO2; and at least one of a viscosifier, a rheology modifier, a dispersant, a weighting agent, a defoamer, a fluid loss agent, bentonite, or a lubricant.

Abstract: According to some aspects, a method is provided of casting an object from a mold, the method comprising obtaining a mold comprising a hollow shell of rigid material, the material comprising a thermoset polymer having a plurality of pores formed therein, providing a metal and/or ceramic slurry into an interior of the mold, exposing at least part of the mold to a low pressure environment so that a net flow of gas is produced from the interior of the mold into the low pressure environment. According to some aspects, a method of forming a porous mold is provided. According to some aspects, a photocurable liquid composition is provided, comprising a liquid photopolymer resin, particles of a solid material, in an amount between 30% and 60% by volume of the composition, and a water-soluble liquid.

Abstract: An aqueous cleaning composition for removing paraffin, asphaltene, and scale deposits or plugs from a hydrocarbon system. The aqueous cleaning composition is formed of a cleaning composition and an aqueous liquid. The cleaning composition contains about 21-33% of a silicate, about 20-35% of a peroxygen, about 3-15% of a phosphate, about 15-40% of a carbonate or bicarbonate, about 1-10% of a chelating agent, about 1-5.5% of a surfactant combination. In one embodiment, the surfactant combination includes a surfactant polymer mixture containing a block polymer and a reverse polymer, and a wetting agent containing a sulfonated material or an ethoxylated alcohol.

Abstract: A method for knocking out a foundry core confined in an internal cavity in a part at the end of a casting operation, in particular a lost-wax casting operation, includes at least a primary chemical knocking-out step. During the primary chemical knowing-out step, the part is subjected to a chemical solution to dissolve the core, in a sealed enclosure. The method further includes a secondary step of knocking out by ultrasounds in water or an aqueous solution contained in an ultrasound tank, during which the part is subjected to ultrasounds to loosen core residues from walls of the cavity.

Abstract: System for selectively contacting a cleaning composition with a surface of a turbine engine component is presented. The system includes a cleaning apparatus and a manifold assembly. The cleaning apparatus includes an upper portion and a lower portion defining a cleaning chamber configured to allow selective contact between the cleaning composition and a surface of the first portion of the turbine engine component. The upper portion includes a plurality of fill holes in fluid communication with the cleaning chamber, and the lower portion includes a plurality of drain holes in fluid communication with the cleaning chamber. The manifold assembly is configured to selectively circulate the cleaning composition from a reservoir to the cleaning chamber via the plurality of fill holes, and recirculate the cleaning composition from the cleaning chamber to the reservoir via the plurality of drain holes. Methods for selectively cleaning a turbine engine component is also presented.

Abstract: It is possible to shorten a time before starting a drink filling working and a time for manufacturing a product.

Abstract: An automatic turnover device for use in manufacturing includes a support frame, a motor, a pulley, a holding assembly, and a belt. The motor is secured to the support frame. The motor has an output shaft. The pulley is mounted on the output shaft of the motor. The holding assembly is pivotally connected to the support frame. The holding assembly is configured to hold an object. The belt has one end attached to the pulley and another end attached to the holding assembly. The motor is operated to rotate the output shaft in a first direction to tighten the belt and then to rotate in reverse to release the belt, such that a center of gravity of the holding assembly is moved. The holding assembly pivots relative to the support frame from a first horizontal position to a second horizontal position due to its own weight.

Abstract: An aqueous cleaning solution composition includes about 8.7 wt. % to about 10.7 wt. % sodium hydroxide and about 0.7 wt. % to about 1.1 wt. % of potassium sodium tartrate.

Abstract: The invention relates to a thermal barrier coating removal method. A metal component (32) having a thermal barrier coating is located in a vessel (12) for containing an inert liquid reservoir. The vessel (12) has a releasably sealable closure (14) so as to allow the vessel interior to be maintained at an elevated pressure in use. The vessel is heated and the liquid therein is maintained at a temperature greater than 100° C. for an extended period of time such that thermal barrier coating breaks up as a result of internal stress caused by a crystal structure change in the thermal barrier coating.

Abstract: A system for cleaning gas turbine engines is described. More specifically, methods and apparatuses for cleaning stationary gas turbines and on-wing turbofan engines found on aircraft are disclosed that includes a trailer-mounted, automated low-pressure water delivery system, additive and detergent injection system, nozzle and manifold technology, and active waste water effluent collector system. The system will deliver the liquid cleaning medium at a specific pressure, temperature and flow rate to optimize the atomization that occurs at the nozzles.

Abstract: A method of preparing a sealing surface of a container for application of a seal. A lip of the container may be heated, rinsed, and dried to establish the sealing surface. Then the seal may be applied to the sealing surface.

Abstract: Methods and systems for virus inactivation in the production or processing of biological or other sensitive substances are provided. The disclosed methods and systems for virus inactivation involve the key steps of dissolving carbon dioxide into biological or other sensitive substances; and treating the substance with the dissolved carbon dioxide at conditions which are less than critical pressure and temperature for a prescribed treatment time to inactivate at least 80% of the target virus or viruses contained within the biological or other sensitive substances. The disclosed carbon dioxide treatments for virus inactivation may optionally include concurrently or sequentially subjecting the substances with an acid treatment to lower the pH of the substance and inactivate viruses contained within the biological or other sensitive substance.

Abstract: An embodiment prevents equipment fouling (deposition of unwanted material) in an oil recovery system via implementing passivation of metallic components. By preventing or at least slowing or inhibiting corrosion of equipment or components via passivation, such as passivating heat exchangers, metallic piping, and the like, an embodiment in turn reduces fouling thereof. Other embodiments are described and claimed.

Abstract: A method, apparatus, and system for obtaining a solution from a solid product are disclosed. A solid product is housed in a dispenser. A liquid is introduced into the housing of the dispenser to interact with the solid product to form a solution. To control the concentration of the formed solution, the turbulence of the liquid introduced to the dispenser is controlled and adjusted either manually or on a real time basis to account for varying characteristics of either or both of the solid product and the liquid. The dispenser will adjust the turbulence based on the characteristics to maintain a formed solution within an acceptable range of concentration. The concentrated solution can then be discharged from the dispenser to an end use application.

Abstract: The present invention provides methods and compositions useful for conditioning and removing solid deposits that have formed on or otherwise accumulated within one or more components including, for example, scale formed within a steam generating system. The aqueous cleaning compositions incorporate one or more quaternary ammonium hydroxides characterized by pKa values no less than about 13.5. These quaternary ammonium hydroxides may be used alone or in combination with one or more additives including, for example, chelating agents, reducing or oxidizing agents, pH adjustment agents, surfactants, corrosion inhibitors, complexing agents, dispersants and combinations thereof.

Abstract: Disclosed is a method for cleaning deposits from one or more parts of an engine fuel delivery system, the method comprising introducing into the engine fuel delivery system a cleaning composition comprising (a) one or more aromatic hydrocarbon solvents; and (b) one or more propylene glycol ethers.

Abstract: A method of cleaning a food plant of the type which produces an aseptic product or a product with extended shelf life involves at least one circulation with an alkaline detergent solution and at least one circulation with an acidic cleaning solutions. The circulations take place alternatively with the alkaline detergent solution and the acidic cleaning solution. Prior to the first circulation, between each circulation and after the last circulation, rinsings with water take place. Simultaneously with the last circulation with alkaline detergent solution the plant is sterilized, and after the last circulation with the acidic cleaning solution the two last rinsings with water take place with sterile liquid.

Abstract: Disclosed is a method for producing a catalyst, in which physical properties of a dried material or a calcined material in a production process of the catalyst are stable and a change in at least one of a catalyst activity and a selectivity to a target product is small and hence reproducibility of the catalyst is excellent. The present invention is a method for producing a catalyst containing molybdenum, bismuth, and iron, which contains the steps of washing a surface of at least one device equipped in an apparatus for the production of catalyst, to which a solid matter adheres, with a basic solution, and producing the catalyst with the apparatus for the production of catalyst thus washed.

Abstract: A cover for a pedicure spa containing an automatic sanitation apparatus is disclosed. When activated, the cover automatically sprays disinfectant in a circular motion from a nozzle on the bottom of the cover. The interior surfaces of the pedicure basin are treated with the disinfectant solution. The pedicure basin is thereby efficiently and thoroughly sanitized.

Abstract: According to one embodiment of the present invention, a method for preparing a brazed surface to receive a coating is disclosed. The method includes providing a brazed surface having a flux layer including a conversion coating and a powder component; and applying an aqueous solution containing a flux-removing agent to the surface to at least partially remove the powder component of the flux layer to obtain a treated brazed surface that is suitable for receiving a subsequent coating layer.

Abstract: The present invention relates to the acidic cleaning in the beer industry, and more particularly an improved process for acidic cleaning of the various elements and vessels that are used in the preparation of beer and other related fermented beverages, said cleaning being carried out by using a formulation comprising at least one alkane sulphonic acid.

Abstract: The present invention relates to a liquid acidic hard surface cleaning composition having a pH of from 2 to 2.9 and comprising formic acid and an alkaline material.

Abstract: The invention relates to the use of a cleaning agent that contains surfactants and has a pH value of at least 11 when diluted in an aqueous solution and ready for use. Said cleaning agent is used to destabilize prions during mechanical and manual cleaning and/or disinfection of medical and/or surgical instruments and appliances. It has been recognized that this combination enables a reliable destabilization of prions during the mechanical reconditioning of surgical instruments.

Abstract: The present invention relates to reactive purge compound for cleaning polymer processing equipment wherein the reactive purge compound that includes i) at least about 50 wt.% of a polymeric carrier component based on the total weight of the reactive purge compound; and ii) a chain scission catalyst component dispersed in the polymeric carrier component; wherein a) the chain scission catalyst component includes a chain scission catalyst selected from the group consisting of at least one alkali metal hydroxide, at least one alkaline earth metal hydroxide, and any combination thereof; b) the reactive purge compound further comprises a water generating component; or c) both (a) and (b); wherein the reactive purge compound is a feedstock material in the form of a plurality of pellets, granules, rods, powder or other particles.

Abstract: A cleaning solution for automatic biochemical analyzers includes: at least one anionic surfactant, at least one nonionic surfactant, an alkali metal hydroxide, an alkali metal citrate, and a buffering agent stabilizing the pH value above 13.0. In some embodiments, the cleaning solution provides low residual rate of proteins, low residual rate of lipids, desirable within-batch repeatability in clinical testing, low level of cross-contamination, and low level of reactant deposit after cleaning, without affecting test results of the biochemical analyzer. In some embodiments, the cleaning solution has no corrosive effects on the liquid path and reaction cup of the analyzer. The ingredients of the cleaning solution may also be biodegradable.

Abstract: A device for disinfecting a portion of an implement such as a needleless hub or injection port. The device includes a body shaped to engage the implement with the portion to be disinfected exposed. A disinfectant area is located on the body so as to permit pivotal displacement of the area relative to the body such that in a first orientation the portion to be disinfected is exposed and in a second orientation the portion to be disinfected is covered and the disinfectant area engages the portion to be disinfected.

Abstract: A coke removal system removes coke deposits from the walls of a high temperature passage in which hydrocarbon fuel is present. The system includes a carbon-steam gasification catalyst and a water source. The carbon-steam gasification catalyst is applied to the walls of the high temperature passage. The water reacts with the coke deposits on the walls of the high temperature passage to remove the coke deposits from the walls of the high temperature passage by carbon-steam gasification in the presence of the carbon-steam gasification catalyst.

Abstract: A cleaning compound for cleaning surfaces in a food processing environment includes at least one container, with each container including a peroxide and/or an alkaline reactant therein. The alkaline reactant is selected to raise the pH of the cleaning compound into the alkaline range when the peroxide and the alkaline reactant are mixed together. The cleaning compound may be a liquid or dry compound, which is applied to the surface to be cleaned.

Abstract: The present invention relates to a method and to an apparatus for cleaning particle filters in exhaust gas systems of combustion engines, in particular diesel engines in vehicles. In order to clean a particle filter in a simple and economical manner without the need to remove the particle filter, a noncombustible, ash-free cleaning fluid is sprayed into the particle filter (25) at high pressure by means of a spray nozzle (14), across an area of said filter through which the exhaust gas flows during the operation of the combustion engine, in a quantity such that the interior of the particle filter is substantially completely soaked.

Abstract: A surface which carries a material which is infected with prions is cleaned with an alkaline cleaning solution to remove as much proteinaceous material as possible from the surface. The solution contains an alkaline cleaning agent which attacks prions remaining on the surface and which attacks prions removed from the surface during the cleaning step. After the cleaning step, the surface is exposed to a strong gaseous oxidant, preferably hydrogen peroxide vapor. The hydrogen peroxide or other strong oxidant attacks the prions, particularly the unclumped prion strands, deactivating the prions.

Abstract: The present invention is related to a method and system for cleaning a media support structure in a filter cell in a liquid filter system, wherein a cleaning solution does not significantly enter a filter media zone. The method comprises supplying a cleaning solution to a filter cell to a level sufficient to submerge the media support structure, but not to significantly enter the filter media zone. Additionally, the cleaning solution level is monitored to ensure the cleaning solution does not significantly enter the filter media zone. Alternatively, the cleaning solution may be continuously recirculated and reintroduced to the filter cell during the cleaning operation.

Abstract: A method and apparatus provide for automatically cleaning and decontaminating medical instruments. The method comprising the steps of: a) placing the medical instruments into a container after their use in a medical procedure; b) closing the container to seal the instruments inside whereby to prevent personnel contact with the instruments and any contaminants which might be thereon; c) inserting the sealed container into a washer/decontaminator and sealing the washer/decontaminator; d) the washer/decontaminator automatically opening the container and applying a washing fluid thereto to wash the instruments within the container; and e) the washer/decontaminator automatically applying a disinfectant to the container to disinfect the instruments whereby to allow safe handling thereof by personnel.

Abstract: Prepackaged cleaning compositions are described which are suitable for on-site dilution, and for cleaning substrates such as air conditioner coils.

Abstract: A method to remove deposits containing magnetite and copper from a container, particularly from a steam generator of a nuclear power plant. In a first step, the container is treated using an alkaline cleaning solution containing a complexing agent forming a soluble complex with iron ions, a reducing agent, and an alkalizing agent. In a second step a further complexing agent forming a more stable complex with iron III ions than the complexing agent used in the first step and an oxidant are added to the cleaning solution of the first step present in the container.

Abstract: A method for on-line cleaning of a heat exchanger in an ethanol plant, including providing heat exchanger, wherein said heat exchanger has an inlet, and an internal surface, wherein said internal surface has accumulated undesired solids; providing an antifoaming agent to said inlet, during normal operation; providing a caustic to said inlet, during normal operation, and cleaning the internal surface of said accumulated undesired solids, during normal operation is provided.

Abstract: A method for cleaning exchangers including providing a heat exchanger with a liquid contact side and a vapor contact side, providing acid to clean the liquid contact side, and providing caustic to clean the vapor contact side is provided. In the method, the exchanger may be a beer preheater. In the method, the acid may be sulfamic acid. In the method, the liquid contact side may be the beer side. In the method, the exchanger may be a plate-in-frame heat exchanger or a a shell-and-tube heat exchanger. In the method, the acid may be provided from a central storage tank. In the method, there may be a recirculation pump. In the method, the acid may be provided from a local storage tank.

Abstract: An oral feeding bottle includes a feed container with an open end and surfaces adapted to come into contact with a liquid feed in the container, a teat releasably connected to the open end and adapted to contact both the liquid feed and a person or animal feeding from the bottle, and a cap with two modes of operation, where in the first mode, the teat is connected to the container and the cap is adapted to fit over, enclose the teat, and be releaseably connected to the feed container, and where in the second mode, the cap includes a means for stowing the teat in a non-dispensing position spaced from the container, where the teat and the surfaces that contact the liquid feed are in fluid communication so that the teat and the feed container are sterilized with a fluid sterilizing medium disposed in the container.

Abstract: A method of cleaning a wafer after an etching process is provided. A substrate having an etching stop layer, a dielectric layer, a patterned metal hard mask sequentially formed thereon is provided. Using the patterned metal hard mask, an opening is defined in the dielectric layer. The opening exposes a portion of the etching stop layer. A dry etching process is performed in the environment of helium to remove the etching stop layer exposed by the opening. A dry cleaning process is performed on the wafer surface using a mixture of nitrogen and hydrogen as the reactive gases. A wet cleaning process is performed on the wafer surface using a cleaning solution containing a trace amount of hydrofluoric acid.

Abstract: A composition comprising a polypropylene glycol, a polyethylene glycol ester, an amine, and optionally an alcohol. The composition can be used as a purge solution to clean paint equipment.

Abstract: The present disclosure provides a method of cleaning a semiconductor substrate after a DRIE etch process, wherein residue from the DRIE process is removed without damaging the substrate. The process may include contacting the micro-fluid ejection head with an aqueous solution of TMAH, stripping a photoresist etch mask from the micro-fluid ejection head, and dissolving a passivating coating from the substrate. Then the substrate may be contacted with an acidic solution. The method may further include rinsing and drying the substrate.

Abstract: A coke removal system removes coke deposits from the walls of a high temperature passage in which hydrocarbon fuel is present. The system includes a carbon-steam gasification catalyst and a water source. The carbon-steam gasification catalyst is applied to the walls of the high temperature passage. The water reacts with the coke deposits on the walls of the high temperature passage to remove the coke deposits from the walls of the high temperature passage by carbon-steam gasification in the presence of the carbon-steam gasification catalyst.

Abstract: A method for cleaning the interior walls of a storage tank comprises traversing over said walls a cleaning head supplied with air. The cleaning head may comprise a cleaning duct having an inlet and an outlet and a lateral opening which in use is sealingly arranged against the tank wall, whereby air flowing through the duct flows over and in contact with the tank wall. Cleaning materials, such as aggregate particles and cleaning fluid droplets, may be entrained in the air.

Abstract: The present invention relates to a method for washing a washing tub and a washing machine having the same applied thereto, and more particularly, a method for washing a washing tub including the step of washing a washing tub with powder detergent and a step for washing the washing tub with bleaching agent; and a washing machine having the same applied thereto. A method for cleaning a tub in a washing machine includes a washing water supply step for supplying washing water to the washing tub, a powder detergent supply step for supplying powder detergent to the washing tub, a powder detergent washing step for washing the washing tub with the powder detergent, a bleaching agent supply step for supplying bleaching agent to the washing tub, and a bleaching agent washing step for washing the washing tub with bleaching agent.

Abstract: An immersion lithographic apparatus is cleaned by use of a cleaning liquid consisting essentially of ultra-pure water and (a) a mixture of hydrogen peroxide and ozone, or (b) hydrogen peroxide at a concentration of up to 5%, or (c) ozone at a concentration of up to 50 ppm, or (d) oxygen at concentration of up to 10 ppm, or (e) any combination selected from (a)-(d).

Abstract: In one aspect, a method of cleaning an electronic device manufacturing process chamber part is provided, including a) spraying the part with an acid; b) spraying the part with DI water; and c) treating the part with potassium hydroxide. Other aspects are provided.

Abstract: Disclosed are a cleaning solution for preventing damage of a silicon germanium layer when cleaning a semiconductor device including the silicon germanium layer and a cleaning method using the same. The cleaning solution of a silicon germanium layer includes from about 0.01 to about 2.5 percent by weight of a non-ionic surfactant with respect to 100 percent by weight of the cleaning solution, about 0.05 to about 5.0 percent by weight of an alkaline compound with respect to the cleaning solution and a remaining amount of pure water. The damage to an exposed silicon germanium layer can be prevented when cleaning a silicon substrate having a silicon germanium layer. Impurities present on the surface portion of the silicon germanium layer can be effectively removed.

Abstract: The present invention relates to a method for washing a washing tub (120) in a washing machine, and a washing machine having a washing tub washing course provided thereto for enabling washing tub (120) washing by the same, and more particularly, to a method for which makes effective washing tub washing, with a small amount of washing water consumption, a lower power consumption, and high washing effect; and a washing machine having the same applied thereto. A method for washing a tub (120) or a drum (130) in a washing machine having the tub (120), the drum (130) rotatably mounted in the tub (120), and a steam supply unit for supplying steam to the tub (120), includes a steam supply step for supplying steam to the tub by using the steam supply unit.

Abstract: A method for cleaning a metal plating tank is provided herein. In accordance with the method, the tank is exposed to a first acid (103), after which the tank is exposed to a second acid in the presence of a first oxidizing agent (107).

Abstract: There is described a process for the cleaning of an installation, whereby the installation is rinsed with an alkaline cleaning solution and the result of the cleaning is tested by means of an indicator agent on the basis of permanganate in an alkaline environment. In order to make the cleaning more economical and less productive of waste water, it is proposed to introduce the indicator agent that is used as an indicator into the alkaline cleaning solution for further use as a cleaning agent.

Abstract: Uncured solvent-based paint may be flushed from a paint delivery installation using a substantially non-aqueous composition containing one or more organic solvents and a polymer having acid and/or amine functional groups.