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WO/2002/011850A1 |
A method for separating used oil in a simple batch process into usable fractions. A pretreatment step involves forming a mixture of the used oil and specified pretreatment chemicals in a mixing tank (10). A reduced pressure is maintained...
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WO/2001/090283A1 |
Used Motor Oil (UMO) is reprocessed by vaporization and partial condensation. The UMO vapor fraction from the thermal reactor (10) may contain gasoline and chlorinated solvents, and will contain vaporized lubricating oil boiling range co...
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WO/2001/085882A2 |
A fluid filter increases the useful life of the filtered fluid by removing contaminants therefrom, and may optionally provide for in-line delivery of additives to the filtered fluid. The filter may be an oil filter, a fuel filter, or oth...
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WO/2001/085300A2 |
An improved oil conditioning filter, for use with an internal combustion engine, includes a mechanically active filter element and a chemically active filter element having a reactive basic conditioner therein. The reactive basic conditi...
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WO/2001/083602A1 |
A polymeric coating composition chemically grafts to cellulose or synthetics, and the resulting product serves as a filter in a filtration system which keeps the filtered liquid or gas clean by removing soot, solids, liquids and other co...
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WO/2001/080982A1 |
A method and apparatus for the dehydration of oils is shown. A water containing oil stream (40) is dehydrated by contacting stream (40) with one side of a defect-free, nonporous membrane (18). The membrane (18) divides a separation chamb...
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WO/2001/066678A1 |
The invention relates to a method for recovering a spent cutting suspension, such as results for example from the mechanical treatment of silicon, quartz or ceramics. The suspension is composed of a cutting fluid with cutting grains and ...
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WO/2001/060493A1 |
The invention relates to a purification method for liquids (2) which are used in an almost closed circuit. According to the inventive method, the coarse components are deposited from the liquid in a first coarse filtering process (7) and...
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WO/2001/051800A1 |
A method and apparatus for delivering liquid catalyst to a combustion device is disclosed as comprising a combination of aspects, including adding liquid catalyst to a combustion air intake duct (1) or to a combustion exhaust duct (3), e...
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WO/2001/045818A1 |
A process for removing even tightly emulsified oil, water and solid emulsions by the application of a shear force sufficient to break the emulsion. In one particular application, a tank bottom sludge produced in the petroleum industry is...
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WO/2001/043933A1 |
The invention relates to a method for separating a machining suspension, which accumulates for example during the mechanical machining of silicon, quartz or ceramic, from a cutting fluid. Abrasive grains, in addition to attrition materia...
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WO/2001/023505A1 |
The invention relates to a method for purifying coolant-lubricant oils. Said oils continuously circulate in metal-working installations and are purified by a low-pressure filter assembly (13). The purification takes place in the main str...
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WO/2001/005914A2 |
The invention relates to a separating facility for separating a leakage current having a polyglycol and ethylene mixture. Said leakage current can be guided from a lubricating system via a leakage collecting line (30). With the aid of sa...
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WO/2001/002077A2 |
The invention relates to a device for maintaining and cleaning a working medium (3), especially coolants, oils, grinding water, vehicle washing water and washing baths, which can be delivered to at least one filter by at least one line, ...
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WO/2001/000756A1 |
The invention concerns a method for decontaminating waste lubricating oils which consists in: a) pouring the oils to be treated in a container, adding thereto 1-2 wt. % of glycol, heating at 60 °C, stirring and allowing to cool and deca...
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WO/2000/072948A1 |
A method and apparatus for the removal of free, emulsified, or dissolved water from liquids of low volatility, such as oil, is shown. The liquid of low volatility is removed by contacting the fluid stream (40) of concern with one side of...
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WO/2000/065003A1 |
A device for regenerating the cooling emulsion (3) stagnating in the tanks (2) of the machine tools, characterized in that the proliferation of anaerobic bacteria responsible for the evil-smelling deterioration of said emulsion (3) is su...
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WO/2000/056842A1 |
Polynuclear aromatic hydrocarbons (PAHs) and other contaminants are removed from petroleum distillates by mixing a solvent (22) with petroleum distillate (12) to extract the contaminants therefrom. The solvent is recovered and distilled ...
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WO/2000/053706A1 |
A process for removing contaminants from used motor oil (10), used motor oil from a source (12) is passed through a used oil feed pump (14) to a heater (16). An amount of base is added to the used oil of between 0.5 and 5 weight percent....
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WO/2000/052118A1 |
The invention relates to a method for treating an oil using a liquid in a supercritical state. The invention relates more specifically to a method for refining an oil in order to separate the pollutants therefrom and to recover a refined...
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WO/2000/049114A1 |
A method for removing acidic compounds, color, and polynuclear aromatic hydrocarbons. The base catalyzed flow apparatus allows used oil to pass through the used oil feed pump (24) to heater (16). At the same time, a 50 % aqueous sodium o...
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WO/2000/044855A2 |
The invention relates to a method and a system for processing used oil. Said system can be operated in an especially energy-efficient manner if the heat of the flame and flue gas is used for the targeted heating of the used oil situated ...
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WO/2000/040679A1 |
The invention relates to a method of reprocessing used oil by separating off recyclable oil fractions that can be used for new products, separating the proportions of heavy oils, water and salt. The inventive method is characterized in t...
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WO/2000/027957A1 |
The invention relates to a method for reprocessing waste oils and producing high-grade base oils, whereby waste oil is treated by means of distillation, thin-film evaporation in a high vacuum, optional fractionation for separation into l...
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WO/2000/003820A1 |
A method of recovering and regenerating a mold lubricant for hot forging, in which a recovered liquid flows into a reusable liquid supply tank (50) through a springed hose (46) after scale is removed from a recovered mold lubricant (reco...
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WO/1999/064133A1 |
The invention relates to a modular system for putting together different sized filter elements, especially filter elements having different lengths, more particularly filter devices for hydraulic fluids, comprising a support tube (11, 13...
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WO/1999/062617A1 |
The method for vibrational cleaning liquids of suspended foreign particles may be used for cleaning water, oil, liquid fuels, lubricants, food oils, foods, liquid industrial wastes of microparticles sized of more than 0,01 $g(m)m. The pr...
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WO/1999/061565A2 |
A method for pretreating and re-refining used oil that requires only moderate heat and only one re-refining step. The pretreatment involves mixing the used oil with a basic solution and optionally a phase transfer catalyst. The phase tra...
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WO/1999/061566A2 |
A method for pretreating and re-refining used oil that requires only moderate heat and only one re-refining step. The pretreatment involves mixing the used oil with a basic solution and optionally a phase transfer catalyst. The phase tra...
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WO/1999/055810A1 |
The invention is directed to a process of reducing the chlorine content of oil as well as its propensity to foul during subsequent distillation processes. The process heats the oil to a temperature in the range of 400 to 700 °F and cont...
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WO/1999/032590A1 |
A filtering apparatus according to the present invention is installed at the position (10) on the conduit pipe (6) which is connected between a cooling kettle (2) and a mixing kettle (3), and a filtering apparatus according to the presen...
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WO/1999/029390A1 |
According to the inventive method for demulsifying an oil-containing aqueous emulsion, said oil-containing aqueous emulsion is subjected to an increased pressure and an increased temperature for a certain length of time. Carbon dioxide i...
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WO/1999/029396A1 |
The invention relates to a method for filtering a liquid and to a device for carrying out said method whereby at least one container is provided from which a filter auxiliary agent is fed to a dosing device by a delivery device, and the ...
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WO/1999/021946A1 |
The invention relates to a method for regenerating reaction lubricant residues containing acid organic lubricants refused and processed during cold forming and multivalent metal ions and phosphate ions, wherein said reaction lubricant re...
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WO/1999/021945A1 |
An apparatus and method for reclaiming a useful oil product, from waste oil provides an evaporation chamber in which waste oil is heated and vaporized, preferably at a temperature which causes some cracking of the oil. Hydrogen is inject...
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WO/1999/016527A1 |
A process delivery reservoir (10) and method is disclosed for continuously filtering particulate matter and oils from industrial fluids, such as coolants, oils, aqueous emulsions, etc., which are necessary in the operation of machine too...
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WO/1999/013033A1 |
A process for recovering a base oil of lubricating viscosity from used oil in which, following optional pretreatment, used oil is re-refined by distilling it in distillation apparatus having multiple theoretical plates. Impurities are th...
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WO/1999/011426A1 |
A cutting method in which nonaqueous cutting fluid is used, and an aqueous solution is sprayed or jetted to the position being cut. Recovered liquid is stored in one recovery bath. The nonaqueous cutting fluid and the aqueous liquid are ...
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WO/1998/058043A1 |
The invention relates to a method for reprocessing used oil by separating off recyclable base oils, gas oils and heavy oils, separating the proportions of water and salt. The inventive method is characterised in that a proportion of flui...
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WO/1998/046337A1 |
The invention concerns a method for tangential filtration of a viscous fluid or liquid which consists in dissolving a third body in supercritical state in said viscous fluid or liquid so as to lower the viscosity. The invention also conc...
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WO/1998/040148A1 |
The invention concerns a method of cleaning mineral-oil-based liquid cooling lubricants. The cooling lubricants are continuously circulated in metal-working plants and are cleaned by a deposition filtration system. According to the inven...
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WO/1998/026031A1 |
The invention concerns a method and a plant for regenerating lubricating waste oil with low content of fuel, fatty acids and chloric products. The lubricating waste oil is subjected to the following steps successively: adding strong base...
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WO/1998/016478A1 |
The invention concerns a method and a device for treating aqueous fluid industrial sewage of all types comprising the following steps: a first step of mixing in a vessel (4), a second step of treating said mixture using a device for elec...
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WO/1998/010045A1 |
Ecology of the environment and conservation of energy-containing mineral hydrocarbon raw material due to secondary use after treatment of the refined oils and cutting oils in the metal-working industry and in machine engineering. The met...
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WO/1998/008923A1 |
Disclosed is an apparatus and a process for reclaiming fuel oil from waste oil. The apparatus comprises a thermal cracking unit for cracking the high boiling hydrocarbon material into lighter, lower boiling material so as to separate hyd...
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WO/1998/005409A1 |
An oil filter (10) includes a colloidal suspension (12) of PTFE particles less than 2 microns in size retained by capillary forces within the intricacies of the filter media (26) until the filter (10) is installed and engine oil flows at...
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WO/1998/005406A1 |
A waste-oil cleaning method includes filling a processing tank (12) with waste oil, allowing non-oil liquids in the waste-oil to settle to the base (14) of the tank, then withdrawing the settled non-oil liquids from the base of the tank ...
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WO/1997/046723A1 |
Besides a synthesis gas, a metallurgical raw material is to be produced from an oil containing heavy metals. To do this, the oil is partially oxidised and the heavy metal-containing soot is separated and burnt and the heavy metals thus o...
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WO/1997/027272A1 |
This invention pertains to the field of engine design and may be used for the treatment of fuel and oil used in internal combustion engines. This method includes generating turbulence in the flow of fuel and passing it through a permanen...
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WO/1997/027273A1 |
The present invention is directed to a process and apparatus for the reclaiming and re-refining of waste oils. The process comprises raising a temperature of a feed mixture of fresh waste oil and a recycled non-volatile residue to a rang...
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