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7465395 |
Methods and compositions for removing residues and substances from substrates using environmentally friendly solvents
Environmentally friendly solvents used to dissolve or remove residues and/or substances from substrates wherein the residue and/or substance is contacted with a Generally Recognized As Safe solvent...
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7399367 |
Rust-preventive water-oil separating cleaner composition and a cleaning method using the same
A rust-preventive water-oil separating cleaner composition contacts a part to be cleaned to which an oil attaches. The composition separates the oil from the part, while providing the part with a...
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7348188 |
Method for analyzing metal element on surface of wafer
Various kinds of metal elements existing on the surface of a wafer are analyzed with higher sensitivity. A high concentration HF solution is dropped onto a surface of a wafer. By providing the...
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7338604 |
Process for recycling paint flush solution
A process for removing solids from a water-based flush solution, The process includes: providing dirty flush solution; directing the dirty flush solution to a treatment vessel; adding one or more...
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7323016 |
Regulation of a wash column in a melt crystallization process
The present invention relates to the use of an optical line detector for regulating the position of the wash front and/or of the build-up front of the crystal bed of a wash column in a melt...
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7300593 |
Process for purifying a lipophilic fluid
A process for purifying dry cleaning solvents from a mixture containing used dry cleaning solvents and contaminants, such as laundry soils, fabric treating agents.
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7300594 |
Process for purifying a lipophilic fluid by modifying the contaminants
A process for purifying a lipophilic fluid employing a functionalized fabric treating agent. The functionalized fabric treating agent is capable of delivering fabric treating benefits in a...
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7210488 |
Solids separation system
A solids removal system for use in removing sand and silt from well production fluids. The system has a manifold assembly provided with jetting nozzles, which is installed in a liquid and...
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7081170 |
Method of cleaning ballast
A method of cleaning encrusted ballast comprises the steps of screening the encrusted ballast to separate detritus from the ballast, washing the screened ballast with water while removing the...
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6998377 |
Process for treating a lipophilic fluid
The present invention relates to a process for treating a lipophilic fluid contained in an emulsion of water and lipophilic fluid. The process includes the steps of pre-treating the emulsion,...
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6969429 |
Method for removing blast media and colored residues comprising an aqueous slurry suspension
A process for removing an aqueous slurry suspension comprising a blast medium and coating substance residues which produced when cleaning surfaces which have a corrosion protection coating. The...
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6962628 |
Method of treating epoxy resin-cured product
A method of treating a composite material of epoxy resin-cured product and inorganic matter to easily recover the resin components in a recyclable state without causing thermal decomposition. A...
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6962629 |
Method for moving contaminants from gases
Carbon dioxide is purified through the use of catalytic oxidation. Carbon dioxide is exposed to at least one catalyst, oxidizing at least a portion of the nonvolatile organic residues to form...
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6949146 |
Ultrasonic cleaning module for singulated electronic packages
The invention provides an ultrasonic cleaning module and a method for cleaning singulated electronic packages. The module comprises a cutting chuck having a surface with a plurality of cutting...
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6914040 |
Process for treating a lipophilic fluid in the form of a siloxane emulsion
The present invention relates to a process for treating a lipophilic fluid contained in an emulsion of water and lipophilic fluid. The process includes the steps of pretreating the emulsion,...
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6911096 |
Method of collecting impurities on surface of semiconductor wafer
A method of collecting impurities existing on the surface of a semiconductor wafer and in a thin film formed on the semiconductor wafer is provided with a process for dripping collecting liquid on...
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6858090 |
Closed loop cleaning system
Railroad tank cars that have contained petroleum products are cleaned of asphalt residues by a closed cleaning system. An initial spray of terpene-based solvent is followed by a water rinse. The...
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6833328 |
Method for removing a coating from a substrate, and related compositions
A method for selectively removing one or more coatings from the surface of a substrate is described. The coating is treated with an aqueous composition which includes an acid of the formula H x AF...
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6797073 |
Plant for washing plastic material
A plant for the continuous washing of plastic material in scales. The plant having a washing apparatus, at least one filtering unit connected to the apparatus for purifying the washing fluid and...
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6793737 |
Process for removing a resinous coating from fiberous products
A method for reclaiming fiberglass and a resinous residue from resinous fiberglass product. The method comprises first introducing the resinous fiberglass product to a single chamber or...
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6736859 |
Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent
A cleaning system that utilizes an organic cleaning solvent and pressurized fluid solvent is disclosed. The system has no conventional evaporative hot air drying cycle. Instead, the system utilizes...
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6682604 |
Restoration of contaminated polymer articles
A method of restoring a contaminated polymer article including contacting a contaminated polymer article with an oil which is not a plasticizer under conditions effective to remove substantially...
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6656895 |
Remover composition
A remover composition comprising (a) 100 parts by weight of a composition obtained by adding a cyclic urea compound to water, water-soluble organic solvent, or a mixture of water and water-soluble...
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6599369 |
Method of treating contaminated HEPA filter media in pulp process
A method for reducing contamination of HEPA filters with radioactive and/or hazardous materials is described. The method includes pre-processing of the filter for removing loose particles. Next,...
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6596092 |
Washing process and washing apparatus
Washing items are washed simultaneously with softening washing water comprising alkali metal ion and at least one of carbonate ion and bicarbonate ion. The washing water before being softened is...
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6589357 |
Process and apparatus for removing impurities from surfaces contaminated with liquid
In order to remove impurities, especially liquids ( 5 ) and/or particles ( 4 ) from surfaces of plate-shaped workpieces ( 2 ) contaminated or wetted with liquid ( 5 ), at least one wiping element (...
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6589358 |
Method and apparatus for cleaning an article
A cleaning apparatus includes cleaning vessels 2 a and 2 b for storing cleaning water “W 1 ” used for cleaning an article to be cleaned 14; concentrating vessels 3 a and 3 b for...
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6527870 |
Wafer cleaning module and method for cleaning the surface of a substrate
In a method for cleaning a surface of a substrate an amount of a solution is applied on a surface of the substrate. After the solution is applied on the surface, crystallization of the solution is...
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6521050 |
Methods for evaluating advanced wafer drying techniques
Methods for evaluating advanced wafer drying techniques are provided. An exemplary method includes applying a solution containing an analytically detectable compound to a substrate prior to a...
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6506259 |
Carbon dioxide cleaning and separation systems
A separation method includes (a) providing a heterogeneous separation system, the heterogeneous cleaning system comprising CO 2 in a first phase and an oil in a separate second phase; (b)...
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6454958 |
Method and device for operating etching baths
A method of operating a milling bath wherein a metal workpiece to be milled is immersed in a milling bath containing a milling medium, the metal oxidizing owing to a chemical reaction between the...
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6425955 |
Process for avoiding foaming during cleaning of metal salts of intermediate length carboxylic acids from surfaces
Aqueous alkaline cleaning solutions are used to remove metal intermediate length carboxylate salts from a solid substrate. Foaming of the aqueous alkaline cleaning solution can be adequately...
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6417147 |
Cleaning agent composition, method for cleaning and use thereof
An object of the present invention is to provide a new cleaning agent composition having excellent cleaning power for the surface contamination of a semiconductor wafer or various precisely worked...
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6368359 |
Process for stabilization of dry cleaning solutions
A method for stabilizing silicone dry cleaning solvents that may contain an undesirable basic impurity capable of causing cyclic siloxane formation, comprising contacting the silicone solvent with...
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6361613 |
Method for pickling mettalic surface, pickling solutions therefor, and process for regenerating spent pickling solutions
A method for removing scales formed on iron-based metal alloy containing Ni and/or Cr comprising contacting the metal alloy with a pickling solution containing nitrates and fluorides as essential...
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6284054 |
Animal waste separator and waste water recycling system and method of recycling waste water
The present invention is directed to a system and method for separating waste material from waste water for use in connection with the flushing of an animal storage pen (such as, for example, a hog...
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6279584 |
Bulk ultrasonic degreasing, cleaning, and drying method
A system and method for removing a coating from an elongated metal part or a bundle of such parts is described. The disclosed system includes a soaking vessel that contains a solution suitable for...
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6264753 |
Liquid carbon dioxide cleaning using agitation enhancements at low temperature
A cleaning system and method utilizing sonic whistle and other agitation methods to enhance the soil removal and mass transport capacity of the liquid carbon dioxide at low process temperatures....
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6224774 |
Method of entraining solid particulates in carbon dioxide fluids
The separation of a contaminant from a substrate that carries the contaminant is disclosed. The process comprises contacting the substrate to a carbon dioxide fluid containing an amphiphilic...
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6207058 |
Recovery and reuse of nonionic surfactants from aqueous solutions
Contaminated aqueous systems can be cleaned using an ultra-filtration system that allows for high recovery yields of the surfactant employed therein for recycle and reuse. The system employs...
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6165282 |
Method for contaminant removal using natural convection flow and changes in solubility concentration by temperature
Apparatus and methods are described for removing contaminants from an article using a supercritical or near supercritical solvent fluid held at substantially constant pressure in a pressure vessel....
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6156128 |
Process and apparatus for washing contaminations from material retained on a trash rake
Material retained on a trash rake is washed in a washing chamber by compacting the material before it enters the washing chamber with a screw conveyor passing horizontally through the washing...
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6153015 |
Process for removing soap-contaminated conversion layers on metal workpieces
The process for removing a soap-contaminated conversion layer remaining on a metal workpiece after cold-forming with an aqueous acidic cleaning composition containing water, a surfactant such as an...
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6102053 |
Process for separating radioactive and hazardous metal contaminants from soils
A process for treating radioactive contaminated soils to remove radioactive contaminants therefrom includes creating a suspension of particles of the soil in water, and directing the slurry to a...
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6093257 |
Method for cleaning a substrate with a composition comprising radiation curable groups
A method of cleaning a substrate by covering the substrate with a composition in a sufficient amount to clean the substrate. The composition includes a substantial amount of at least one low...
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5967965 |
Method for treating soil contaminated with heavy metals
A method for treating heavy metal contaminated soils, particularly those containing hexavalent chromium, which includes a first soil washing at pH 9-12 with an anionic synthetic organic flocculant...
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5908040 |
Method of cleaning boats that have been contaminated with oil and gas well drilling fluids and hazardous waste
A system for cleaning vessels that have been contaminated with oil field drilling and production waste materials such as oil well drilling fluid or hazardous waste using recycled wash water. As...
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5877027 |
Method for the analysis of impurity contents in silicon dioxide
An analytical method for the quantitative determination of the impurities in silicon dioxide by which trace amounts of hardly soluble impurities contained in silicon dioxide can be reliably...
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5876608 |
Purification method
The invention relates to a method of purifying contaminated degreasing liquids including (a) adding a collection polymer or polymer mixture forming two phases to the degreasing liquid; (b) mixing...
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5858107 |
Liquid carbon dioxide cleaning using jet edge sonic whistles at low temperature
A cleaning system and method utilizing sonic whistle agitation to enhance the soil removal and mass transport capacity of the liquid carbon dioxide at low process temperatures. Sonic whistles are...
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