Class 554/177 - Recovering from industrial waste materials (e.g., foots, textile treating liquors, spent sorbents, filter cake, sewage, sludge, soapstock, etc.)

Subclass of Class 554 - Organic compounds -- part of the class 532-570 series
Definition: Processes wherein waste materials, such as foots, textile
No. of patents: 29
Last issue date: 04/01/2008

Number	Title	Issue Date
7351342	Method for recovering fluorine-containing emulsifier An aqueous solution containing a fluorine-containing emulsifier in a low concentration of at least 1 ppm by mass and at most 1% by mass (e.g., coagulation waste water after an emulsion polymerization of a fluoropolymer and/or an aqueous solution obtained by washing ...	04/01/2008
7331472	Method and apparatus for separation of a mixture of non-miscible liquids A tank has an inlet opening mounted at an end wall at the beginning of an elongated horizontal path for supplying a mixture to be separated, and two outlet openings mounted at the end of the elongated horizontal path for separately draining the separated liquids. An...	02/19/2008
7235183	Glycerine foots salt separation system The present invention provides a method and apparatus for the recovery of salt from a glycerine process, allowing the salt to be used in a brine solution. A salt settling tank is positioned inline between the foots from a crude still bottom and a foot still. Salt se...	06/26/2007
7192524	Method for processing sugar cane filter cake mud and extracting component products A process for the continuous treatment of sugar cane filter cane mud separates and extracts components including fiber which can be used as an animal feed or a source of energy generation, lignin, beta-carotene, oil containing a high content of phytosterol, refined ...	03/20/2007
6833149	Method and apparatus for processing vegetable oil miscella, method for conditioning a polymeric microfiltration membrane, membrane, and lecithin product A method for processing vegetable oil miscella is provided. The method includes steps of feeding vegetable oil miscella to a conditioned polymeric microfiltration membrane, and recovering a permeate stream having a decreased weight percent of phospholipids compared ...	12/21/2004
6780321	Recovery of oil from spent bleached earth The invention discloses a process to recover oil from spent bleaching earth recovered from vegetable oil refining process. The process involve three sub-processes comprising of reacting the spent bleaching earth with a solvent selected from a group consisting of tol...	08/24/2004
6613941	Method for recovering fluorinated alkanoic acids from waste waters Fluorinated emulsifier acids can be isolated from wastewater by firstly removing fine solids and/or material which can be converted into fine solids from the wastewater, preferably by precipitation, subsequently bringing the wastewater into contact with a...	09/02/2003
6518442	Process for the recovery of fluorinated alkandic acids from wastewater The invention relates to a method for removing fluorinated emulsifying agent acids from waste waters, characterized in that the finely dispersed solids in the waste water are stabilized with a nonionic or cationic surfactant or an analogous acting surface...	02/11/2003
6497644	Process for recycling amido-carboxylic acid esters into amino-carboxylic acids According to the invention, waste materials containing amido-carboxylic acid esters, which are generated during the preparation of phenyl ester salts, can be converted into amido-carboxylic acids. The recovered amido-carboxylic acid is then useful in the ...	12/24/2002
6399802	Method for soapstock acidulation Methods for acidification of soapstock and recovery of acidulated fatty acids are disclosed. Further methods of conversion of the acidulated fatty acids to esters are also disclosed. Further methods of crystallizing the acidulated fatty acids from the ext...	06/04/2002
6218555	Process for the preparation of alkanoyloxy-benzenesulfonic acids and salts thereof Disclosed is a process for the preparation of alkanoate esters of hydroxybenzenesulfonic acids and salts thereof by the steps of (1) contacting or reacting phenol with an alkanoic acid in the presence of trifluoroacetic acid (TFA) and trifluoroacetic anhy...	04/17/2001
6207209	Method for removing phospholipids from vegetable oil miscella, method for conditioning a polymeric microfiltration membrane, and membrane A method for removing phospholipids from vegetable oil miscella is provided. The method includes steps of feeding vegetable oil miscella to a conditioned polymeric microfiltration membrane, and recovering a permeate stream having a decreased weight percen...	03/27/2001
5980754	Process for recovering components of a float material from waste water treatment system A process for recovering protein, fatty and water components from a float material produced by a waste water treatment system, wherein the protein and fatty components can be further processed for inclusion in various products, such as animal feed. The re...	11/09/1999
5599376	Process and equipment to reclaim reusable products from edible oil process waste streams A process for recovering edible oil and bleaching clay from an edible oil-bleaching clay waste stream and for recovering edible oil and nickel catalyst from a hydrogenated edible oil-nickel catalyst-filter aid waste stream; the recovered bleaching clay ma...	02/04/1997
5565590	Process for recycling amino-carboxylic acid waste materials into amido-carboxylic acids This invention relates to a process for recycling waste material selected from amino-carboxylic acid oligomers or polymers and amido-carboxylic acid oligomers or polymers into amido-carboxylic acids. A mixture containing water, an oligomeric or polymeric ...	10/15/1996
4957662	Method for purifying fatty acids Fatty acids having excellent color and color stability can be obtained by a combination procedure of a contacting step of a crude fatty acid with a reducing metal, and a distillation step....	09/18/1990
4259251	Treatment of effluent A process for the production of fatty acid soaps from sludge, especially sewage sludge, comprises extracting sludge having a solids content of at least 15% by weight with a non-polar solvent to provide an extract containing fatty matter, and subsequently ...	03/31/1981
4186582	Press for hydrostatic extrusion of tubes and profiles The pressure medium used in the pressure chamber of a hydrostatic press is degassified in a degassing tank prior to delivery to the pressure chamber so as to improve the resistance of the pressure cylinder, or the liner inside of the pressure cylinder, to...	02/05/1980
4185026	Process for cleansing spent clay from the refining of glyceride esters Elevated temperature process for deoiling spent crystalline clay from the refining of glyceride esters ("oils") wherein a primary dispersion of such spent clay and aqueous alkali are mixed under pH conditions effective for removing a substantial amount of...	01/22/1980
4164507	Process for separation of salt from heavy ends wastes of glycerine manufacture A process is described for separating salt (sodium chloride) from the polyglyceride-containing organic phase of the heavy ends waste or glycerine foots still bottoms obtained in conventional manufacture of glycerine via hydrolysis of epichlorohydrin or gl...	08/14/1979
4152323	Process for removing water from glue stock A process is disclosed for treating glue stock so as to remove water and fat therefrom and render the glue stock useful as fertilizer, fertilizer supplements or animal feed. The process comprises heating the glue stock to a temperature between 40° and 80...	05/01/1979
4136217	Removing oil emulsion from articles prior to coating articles and recovering oil from the emulsion In a continuous process wherein corrosion resistant and paint adherent coatings are formed on metallic articles and wherein prior to the formation of said coatings, the articles are first subjected to a pre-cleaning stage in which oil emulsion is removed ...	01/23/1979
4110356	Recovery of domestic oil from spent clay Spent clay from the bleaching of C18+ domestic glyceride esters ("oils") is deoiled by slurrying such spent clay with aqueous alkali at a temperature of at least about 80° C. and a weight ratio of water to clay of about 2-6:1 at a high "pH win...	08/29/1978
4082867	Oil emulsion removal and recovery of oil Oil emulsion is removed from the surfaces of articles by washing the articles with an aqueous solution of wash water and demulsifier, thereby forming a turbulent mixture of the wash water, the demulsifier and the oil emulsion. The demulsifier is effective...	04/04/1978
4061568	Method for recovering and stabilizing fat and fatty substances as well as proteins and proteinous substances from process water The invention according to the present patent application relates to a method for recovering substances from fat processing industry such as fat refining plants, margarine industry and other food industries, whereby a water purifying effect is achieved as...	12/06/1977
4049685	Process for cleansing spent clay Process for washing fatty acids from spent clay, such as spent bleaching clay, with aqueous alkali at elevated temperature is improved by establishing and maintaining the mixture of aqueous phase and fatty acid at a pH between about 5 and about 6.5....	09/20/1977
3974069	Process for the dehydration of fatty sludge and the recovery of chemicals A process is disclosed for concentrating a fatty sludge precipitated from a fatty and proteinaceous aqueous emulsion by successive addition of hydrolyzable metals salts and alkaline earth salts thereto and subsequently separated from the aqueous portion o...	08/10/1976
3947355	Apparatus and process of separating packing house waste Scraper elements are resiliently and movably supported to alternately, at one stage in the process, pass along a sloped ramp in contact with a container wall to remove surface layers of tallow-like material from water contaminated therewith and, in a subs...	03/30/1976
3931258	Recovery of sugar cane wax This invention relates to a process for recovering wax from filter cake derived from the treatment of sugar cane in the production of cane sugar. The process involves taking up the wax in water by forming an aqueous slurry of the filter cake, adding a sur...	01/06/1976

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Class 554/177 - Recovering from industrial waste materials (e.g., foots, textile treating liquors, spent sorbents, filter cake, sewage, sludge, soapstock, etc.)