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5482633 |
Process for removing vegetable oil waxes by fast cooling vegetable oil and using a porous non-metallic inorganic filter
This invention provides for the separation of higher melting glycerides from vegetable oils. After the vegetable oil is refined and bleached, it is rapidly cooled to provide a blend that contains...
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5462667 |
Filter for liquor filtration
A filter and process of using the filter for the filtration of liquor cerebrospinalis, the filter has a membrane filter layer having a pore size of from 0.04-0.45 μm a thickness of 0.1 to 1 mm, a...
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5456843 |
Microfiltration and/or ultrafiltration membrane, method of preparation and method of filtration by means of such a membrane
The invention relates to a microfiltration and/or ultrafiltration membrane consisting of a polymer having nominal pores of 0.001-10 μm. The special feature of the membranes according to the...
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5456842 |
Method for recycling cleaning fluid
A method and apparatus for recycling water based workpart cleaning fluid of the type used to wash workparts (B) free of soils, such as emulsified and non-emulsified cutting oils and lubricants,...
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5451322 |
Method and apparatus for tritiated water separation
The present invention is a membrane method and apparatus for separating isotopic water constituents from light water. The method involves providing a supported membrane of an aromatic...
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5433861 |
Permanent deformation and use of sulfonated halopolymer articles
This invention relates to the preparation of, and a device for using, a permanently deformed sulfonated halopolymer article. A flexible and non-brittle flange may be formed from at least one end of...
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5425878 |
Membranes for ion transport and method for obtaining them
The invention relates to membranes for facilitated ion transport in aqueous solutions. The membrane is an adduct of a heteropolysiloxane and a crown-ether, and contains certain ions such as picrate...
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5401414 |
Process for recovering a fluid dissolved in a rinsing bath
A process isolates, in a closed circulation, the soluble fluid carried over into a rinsing bath from said rinsing bath and to return the fluid into the upstream bath. To this end, enrichment by...
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5378369 |
Solvent extraction
The invention provides a method for the solvent-extraction of β-carotene from an aqueous algal biomass suspension, whereby a vegetable oil which is immiscible with water is mixed with an aqueous...
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5362398 |
Process for the preparation and purification of a hydroxylammonium salt solution
The invention relates to a process for the preparation and purification of a hydroxylammonium salt solution, wherein the hydroxylammonium salt solution is separated by filtration from an aqueous...
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5350521 |
Process for separating catalysts from organic solutions, by means of semipermeable membranes
Disclosed is a process for separating metal catalysts based on ammonium and phosphonium phosphotungstates from reaction mixtures in which they are dissolved. The process is based on the use of...
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5344569 |
Process for recovering thiocyanate
A safe, energy-Saving process for recovering (or purifying) thiocyanate from a large amount of waste liquid (or thiocyanate-containing aqueous solution) by the aid of a reverse osmosis membrane...
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5318706 |
Method of supplying dilute hydrofluoric acid and apparatus for use in this method for supplying the acid
A method of preparing hydrofluoric acid of high purity at the point of use by causing molecular diffusion of hydrogen fluoride into ultrapure water through a resin membrane. The high-purity acid is...
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5284589 |
Process for the treatment of effluent
The process for the working-up of effluents and disposal of the loads, present therein, by a combination of concentration by membrane filtration, evaporation and gas phase oxidation, is...
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5279972 |
Process for analyzing samples for ion analysis
A sample preparation process and apparatus are provided for samples to be analyzed subsequently, such as by liquid chromatography. The sample is passed in contact with an ion exchange polymer which...
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5275738 |
Filter device for acids and process for filtering inorganic acids
A PVDF membrane exposed to a quarternary ammonium hydroxide solution retains it hydrophobicity and resistance to corrosive environments, yet spontaneously and completely wets with concentrated...
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5269935 |
Porous membranes and methods for using same
A porous membrane comprising a porous substrate and a tin oxide-containing material in contact with at least a portion of the porous substrate.
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5269934 |
Removal of oily residues from aqueous waste streams
A process for removing oily residues from aqueous waste streams using a cross flow filtration system in which the efficiency of a dynamic membrane system comprising a gel layer and supporting...
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5266207 |
Composite nanofiltration membrane
Mechanically strong and thermally/chemically-resistant composite nanofiltration membranes, well adapted for the separation of low molecular weight compounds, comprise a porous inorganic support...
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5262053 |
Filtration process, use of stabilizers installation for a filtration process, and procedure for operating said installation
A medium containing tanning agents and/or albumens, such as beer, wine, or fruit juice, is simultaneously stabilized and filtrated by means of cross-flow filtration in the ultrafiltration or...
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5259971 |
Method of preparing fibrinogen
The present invention relates to a method of purifying native, intact fibrinogen from a liquid sample containing contaminants having molecular weights higher and/or lower than that of the...
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5252222 |
Filter for parenteral systems and method of using thereof
A filter device and method are provided for treating parenteral nutrient fluids, particularly TNA systems containing lipids, glucose, and amino acids. The filter device comprises a housing and a...
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5250184 |
Procedure for the preparation of microporous ceramic membranes for the separation of gas and liquid mixtures
Microporous membranes for the separation of gas and liquid mixtures. The new membranes show a temperature stability up to 500° C. and a gas separation with separation factors better than the...
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5248425 |
Aqueous thermite coated filter
This invention relates to an improved thermite coated molten metal filter. According to the invention, a molten metal filter is coated with an aqueous thermite coating slurry containing oleic acid,...
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5244578 |
Blood plasma-separating membrane and blood plasma separator using the membrane
A blood plasma-separating membrane formed of a porous membrane possessing a wetting time in the range of 3 to 500 seconds relative to water and a non-priming grade blood plasma separator using the...
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5230801 |
Recovery of alcohols from n-paraffins by pervaporation
The present invention is a process for the recovery of normal alcohols, especially C 1 -C 20 n-alcohols, preferably n-C 4 -C 14 alcohols, most preferably n-C 6 -C 11 alcohols from n-paraffins...
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5230804 |
Process for separating catalysts from suspensions by filtration
The process for separating off rare metal catalysts used in the preparation of ether-carboxylic acids by catalytic oxidation with a suspended catalyst comprises carrying out a crossflow filtration...
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5221485 |
Purification of X-ray contrast agent, magnetic resonance imaging agent, or radiopharmaceuticals using reverse osmosis
The use of reverse osmosis as an alternative or substitute method for the purification of a crude diagnostic agent. X-ray contrast agent, magnetic resonance imaging agent, or radiopharmaceuticals...
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5205938 |
Polyester bag filter
A bag filter comprising at least one sheet of a polyester filter medium, preferably a polyester high dirt capacity filter medium, having a graded pore structure which has been formed into a bag...
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5178766 |
Composite semipermeable membrane, process of producing the same and method of producing highly pure water using the same
A composite semipermeable membrane which has a high electrolytes rejection even when the concentration of the electrolytes in feed water is very low and even if the pH of feed water is not less...
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5160437 |
Purification of crude Ioversol using reverse osmosis
The use of reverse osmosis as an alternative or substitute method for the purification of a crude diagnostic agent. In the purification process a crude Ioversol solution is contacted with a...
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5159130 |
Polysulfone membranes for aromatics/saturates separation
The present invention describes a method for separating mixtures of aromatics and non-aromatics into aromatic-enriched and non-aromatic-enriched streams by contacting the mixture with one side of a...
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5152899 |
Process for the enrichment or separation of organic substance mixtures
Salts of organic carboxylic acids can be separated from non-salt organic compounds using a semipermeable membrane consisting of a perfluorosulfonic acid polymer or a salt of such a polymer, by...
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5145584 |
Processes for using a thin film composite ultrafiltration membrane
Processes for using a thin film ultrafiltration membrane for the separation of low molecular weight solutes such as the separation of glucose from sucrose and higher molecular weight sugars and the...
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5133867 |
Reverse osmosis process for recovery of C.sub.3 -C.sub.6 aliphatic hydrocarbon from oil
Solvents comprising C 3 , C 4 , C 5 and C 6 aliphatic hydrocarbons (i.e. propane, propylene, butane, butylene, pentane, cyclopentane, pentene, hexane, cyclohexane, hexene and their isomers) and...
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5133851 |
Process for reducing the metal content of a hydrocarbon mixture
Process for reducing the metal content of a hydrocarbon feed mixture by reverse osmosis, comprising contacting the feed mixture substantially boiling in the range between about 100° and about...
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5118424 |
Thin film composite membranes from vinyl and related nomomers
Novel thin film composite membranes are disclosed. They are prepared from vinyl and related monomers by phase transfer catalysis at the interface between one phase containing a polymerizable vinyl...
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5114581 |
Back-flushable filtration device and method of forming and using same
A back-flushable filtration device is provided. The device includes a monolith of porous material having an inlet end and an outlet end. The passageways of the monolith are plugged at the inlet and...
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5114579 |
Separation of metals by supported liquid membrane
A supported liquid membrane system for the separation of a preselected chemical species within a feedstream, preferably an aqueous feedstream, includes a feed compartment containing a feed solution...
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5112491 |
Management of waste solution containing photoresist materials
The present invention relates to management of photoresist-resin-containing waste solution by feeding non-aged waste to a membrane device having a Desal-5 piperazine-based membrane modified to...
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5110478 |
Catalytic conversion over membrane composed of a pure molecular sieve
A process is provided for catalytic conversion of organic compounds in a conversion zone containing a synthetic, non-composited microporous membrane comprising a continuous array of crystalline...
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5110473 |
Method and apparatus for sampling organic compounds in water
The subject invention is directed to an apparatus for removing organic compounds from water which comprises: a housing having an opening therein, the housing being capable of retaining an organic...
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5104546 |
Pyrogens separations by ceramic ultrafiltration
The method of the present invention for separating pyrogens includes passing a pyrogen-containing liquid through a zirconium oxide membrane on a ceramic support. The membrane on ceramic support...
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5102550 |
Apparatus and process for desalination of seawater
An apparatus and process for desalination of seawater using a hydrophobic por permeable membrane. Heated seawater is passed across one surface of a membrane at rates which cause the flow to be...
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5100555 |
Method and system for removing radon from radon containing water
Method and apparatus are described for removing dissolved radon gas from water for the purpose of reducing the exposure of household occupants to elevated airborne Rn levels, using a...
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5098574 |
Membrane purification of solutions/suspensions of polyphosphazenes
Impure solutions or suspensions of the polyphosphazenes, e.g., those containing the reagents and/or byproducts of the chloro-substitution of a polydichlorophosphazene, are purified by contacting...
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5091091 |
Protein A perfusion and post perfusion drug infusion
Disclosed is extracorporeal plasma perfusion over a therapeutic immobilized protein A (staphylococcal), SPA. The perfused plasma is returned to the host or can be taken off one person and used to...
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5087372 |
Method for removing heavy metal ions from contaminated water and a porous membrane usable therefor
A method for simultaneously removing a plurality of different heavy metal ions from contaminated water is disclosed. A plurality of different heavy metal ions can be simultaneously, efficiently...
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5084181 |
Enrichment of water in components of heavy water
A method for the enrichment of the natural water in the components of heavy water such as D 2 O and/or HDO being the source of deuterium. The method utilizes the passing of water through...
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5080936 |
Method for the assembly of polar-nonpolar-polar proteolipid membranes
A method for the formation of a proteolipid membrane based on interphase peptides according to which an interphase peptide which has formed at the boundary of an aqueous phase and a nonpolar phase...
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