The Treating Agent Is A Metal Oxide Or Hydroxide (e.g., Lye, Lime, Caustic Alkali, Etc.) Patents (Class 554/202)
  • Patent number: 10065132
    Abstract: Membrane-based method of washing and deacidification of oils, wherein a stream of oil is conveyed from an oil reservoir along one side of porous hydrophobic membrane, and washing aqueous solution is conveyed along another side of this membrane. The membranes form hollow fibers, and their total surface area and porosity are large enough for efficient removal of fatty acids, water, ions and hydrophilic organic impurities from oil. Membrane pore size is small enough, so that hydrodynamic mixing of oil and aqueous solution does not take place. Additional stabilization of oil/water meniscus in the pores is achieved by transmembrane pressure difference.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: September 4, 2018
    Inventor: Nikolai Kocherginksy
  • Publication number: 20130150602
    Abstract: There is provided a process for purifying a fatty acid, which process comprises reacting a fatty acid with a lithium salt in a first solution and under conditions to allow formation of a precipitate of a lithium salt of the fatty acid; isolating the precipitate; dissolving the precipitate in a second solution followed by separation of the organic and aqueous layers so formed; and evaporating the organic layer to isolate the purified fatty acid. There is also provided a process for increasing the length of a fatty acid, and the use of a lithium salt to purify a fatty acid.
    Type: Application
    Filed: January 27, 2011
    Publication date: June 13, 2013
    Applicant: BASF PHARMA (CALLANISH) LIMITED
    Inventors: Adam Kelliher, Angus Morrison, Phil Knowles
  • Patent number: 8247585
    Abstract: Systems and methods for using carbon dioxide to remove an alkali catalyst and to recover free carboxylic acids after a transesterification reaction are disclosed. Generally, the methods include first providing a mixture resulting from the transesterification of an ester, wherein the mixture includes substances selected from the alkali catalyst, an alcohol, and a transesterification reaction product such as biodiesel. Second, the methods generally include adding carbon dioxide to the mixture. In some cases, adding the carbon dioxide to the mixture causes the alkali catalyst to convert into an alkali carbonate and/or an alkali bicarbonate. In other cases, adding the carbon dioxide to the mixture causes the carboxylic acid alkali salt to convert into a free carboxylic acid. In either case, the alkali carbonate, the alkali bicarbonate, and/or the free carboxylic acid can be separated from the mixture in any suitable manner.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: August 21, 2012
    Assignee: Ceramatec, Inc
    Inventors: Justin Pendleton, Sai Bhavaraju, Kean Duffey
  • Publication number: 20110207953
    Abstract: Methods for producing refined rice bran oil that include caustic treatment step(s) in an amount that is less than or equal to a theoretical amount of caustic required to neutralize practically all of the free fatty acids in the rice bran oil, but avoiding addition of excess caustic. An objective is to retain a high level of oryzanol in the refined oil.
    Type: Application
    Filed: February 22, 2010
    Publication date: August 25, 2011
    Applicant: Riceland Foods, INC.
    Inventors: Larry D. Corley, Nahid Rutherford, Gary E. Nelms, Don R. McCaskill
  • Publication number: 20100292494
    Abstract: The invention relates to a method of treating a mixture (5) containing at least one ester compound having at least one ester bond, in order to enable a dissociation of the ester bond and a re-esterification of the ester compound. The invention also relates to a chemical processing equipment (1) and a mixture (5) containing an ester compound.
    Type: Application
    Filed: April 1, 2008
    Publication date: November 18, 2010
    Inventor: Carl-Johan Lindquist
  • Patent number: 6610870
    Abstract: Processed linseed oil essentially consisting of linolenic, linolic and oleic acids, mainly in the form of triglycerides, its content of free tocoferol being less than about 100 ppm; and a process for the manufacture of linseed oil comprising the following steps: a) heating crude linseed oil to an increased temperature lower than the boiling point of water, b) adding a heated inorganic acid to the oil and mixing the oil, c) separation of precipitated materials, d) adding a heated aqueous solution of alkali to the oil and mixing the oil, e) discharge of the soap formed, and f) rinsing the oil with hot water until a clear rinsing water is obtained.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: August 26, 2003
    Assignee: Linotech AB
    Inventor: Mikkel Selder
  • Patent number: 6518443
    Abstract: The oil seed is first of all comminuted and then formed into flakes by means of rolling, before it is supplied to the recovery of oil. The flakes are charged into a transporting mixer, to which steam and/or water are supplied at the same time, and the flakes in the mixer are transported to the outlet of the mixer with a dwell time of 5 to 50 seconds. With a moisture content of 8 to 20 wt-% and with temperatures in the range from 90 to 110° C., the flakes are withdrawn from the mixer and passed through an annealing zone, in which the flakes are moved over heated trays with dwell times of 15 to 50 minutes and temperatures in the range from 90 to 110° C. The flakes are withdrawn from the annealing zone with a residual moisture which still amounts to at least half the moisture content at the inlet of the annealing zone, and are passed through a drying and cooling zone in which the flakes are converted to granules which are supplied to the recovery of oil.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: February 11, 2003
    Assignee: MG Technologies AG
    Inventors: Wolfgang Beyer, RĂ¼diger Heilmann
  • Patent number: 6506916
    Abstract: A process for refining fatty substances in order to selectively and quantitatively separate therefrom the free fatty acids. The process combines the extraction with an alcohol or a polyol and a neutralization is conducted with an alkali at a controlled pH of 9 to 11.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: January 14, 2003
    Assignee: Nestec S.A.
    Inventor: Raymond Bertholet
  • Publication number: 20020065423
    Abstract: In a process for removing the paint from plastic components provided with coats of paint, the plastic components are first crushed to a bulk material size of the crushed plastic pieces. The plastic pieces are subsequently mixed with a paint removing agent reducing the adhesion of the coats of paint to the plastic pieces, and circulated by means of a conveyor screw. The paint removing agent is formed in this connection by an emulsion consisting of at least one benzyl-substituted alkanol and an alkyl-glycol acetate or N-alkyl-pyrrolidone with an aqueous lye, which can not be completely mixed. The mixing ratio for mixing the individual components is selected so that it is in the range of a mixing gap. After the paint removing agent has acted upon the painted plastic pieces, a solid substance is added to the paint remover so that the further steps of the method can be carried out in a dry state.
    Type: Application
    Filed: October 23, 2001
    Publication date: May 30, 2002
    Inventor: Peter Wiedemann
  • Patent number: 6344573
    Abstract: A process for the extraction and concentration of unsaponifiable substances, containing liposoluble vitamins and provitamins, growth factors and animal and vegetable hormones, from residues of the industrialization of animal or vegetable products. This process does not require the use of solvents. Its main goal is to obtain the separation of these “valuable products”, by means of distillation/evaporation at high vacuum, and the production of fatty acids and other high quality organic acids, once the recovery of the unsaponifiable fraction of residues from the industrialization of animal or vegetable products, is of great commercial interest.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: February 5, 2002
    Assignee: Resitec Industria Quimica LTDA
    Inventors: Rodolfo Rohr, Jose Anibal Trujillo-Quijano
  • Publication number: 20010005759
    Abstract: A process for refining fatty substances in order to selectively and quantitatively separate therefrom the free fatty acids. The process combines the extraction with an alcohol or a polyol and a neutralization is conducted with an alkali at a controlled pH of 9 to 11.
    Type: Application
    Filed: February 9, 2001
    Publication date: June 28, 2001
    Inventor: Raymond Bertholet
  • Patent number: 6111120
    Abstract: This invention relates to a new method of refining oils and fats. The method provides for the reduction of free fatty acids and/or soaps in oils and fats by mixing calcium oxide with said oils or fats.
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: August 29, 2000
    Assignee: Hyam Myers Consulting Pty. Limited
    Inventor: Hyam Myers
  • Patent number: 6096911
    Abstract: A process for purifying alkoxylated fats by treatment with a solid substance, wherein a mixture of aluminum oxide and a silicate is employed as solid substance.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: August 1, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Gabriele Dralle-Voss, Michael Stosser, Siegfried Lang, Thomas Saupe, Matthias Zipplies
  • Patent number: 6072065
    Abstract: An alkaline treatment method for refining used oils, wherein (a) the used oils are distilled; (b) the resulting distillate is treated with an alkaline agent in the presence of a solvent selected from water, a monoalcohol, a polyalcohol and a mixture of said a alcohols, said alkaline agent being present in a percentage by weight, based on the weight of the distillate, equal to the product F.times.(IA+IS), where F is a multiplier between 2 and 50 and IA and IS are the acid value and the saponification value respectively of said distillate, at a temperatue of around 80-330.degree. C. for 2-200 minutes; (c) the reaction medium is washed with water then decanted to recover the oily phase; and (d) said oily phase is distilled. The method is useful for producing refined oils having excellent properties in that they are odorless and nearly colorless and in that they have a very low chlorine, phosphorus and sillicon content.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: June 6, 2000
    Inventor: Bernard Chavet
  • Patent number: 6060511
    Abstract: The use of crocetin has been demonstrated to be effective in elevating oxygen diffusivity, and increasing oxygen consumption by the body tissues of a mammal. Crocetin is difficult to solubilize. Sodium crocetinate, formed by reacting crocetin with sodium hydroxide, appears in several isomeric forms. The trans isomer is effective in improving oxygen diffusivity, while the related cis isomer appears not to be. Isolated TSC can be used in place of crocetin, treat a variety of conditions, including hypertension, cardiovascular disease, hemorrhagic shock, papillomas and related conditions.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: May 9, 2000
    Inventor: John L. Gainer
  • Patent number: 5990330
    Abstract: Highly fluorinated carboxylic acids can be removed from exhaust gas streams by scrubbing with concentrated alkali solutions if these alkali solutions have a density high enough for the salt of the highly fluorinated carboxylic acid to separate out as an independent phase. An apparatus suitable therefor contains a scrubber and a separation vessel which is advantageously equipped with a conveying element, a collection vessel connected via an overflow and a circulation line for the scrubbing liquor.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: November 23, 1999
    Assignee: Dyneon GmbH
    Inventors: Reinhard Albert Sulzbach, Wilhelm Kowatsch, Dieter Steidl
  • Patent number: 5516924
    Abstract: The invention relates to a method of refining glyceride oil comprising the step of degumming said glyceride oil, wherein said degumming step is followed by a separation step in which undissolved and non-centrifugable particles are removed from said degummed oil. Preferably said degumming step is followed by a step of holding the degummed oil for such a period of time and under such temperature conditions as to cause agglomeration of said undissolved particles, and for an agent promoting the formation of undissolved particles and/or promoting the agglomeration of the undissolved particles is added to the oil.
    Type: Grant
    Filed: January 3, 1995
    Date of Patent: May 14, 1996
    Assignee: Van den Bergh Foods Co., Division of Conopco, Inc.
    Inventors: Robert L. van de Sande, Jacobus C. Segers, Jannes G. Lammers
  • Patent number: 5286886
    Abstract: The invention relates to a method of refining glyceride oil comprising the step of degumming said glyceride oil, wherein said degumming step is followed by a separation step in which undissolved and non-centrifugable particles are removed from said degummed oil. Preferably said degumming step is followed by a step of holding the degummed oil for such a period of time and under such temperature conditions as to cause agglomeration of said undissolved particles, and for an agent promoting the formation of undissolved particles and/or promoting the agglomeration of the undissolved particles is added to the oil.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: February 15, 1994
    Assignee: Van den Bergh Foods Co., Division of Conopco, Inc.
    Inventors: Robert L. Van de Sande, Jacobus C. Segers, Jannes G. Lammers
  • Patent number: 5231200
    Abstract: A method for refining and fractionation of palm oil is disclosed. In this method, palm oil or palm fractionated oil which has been treated by physical refining is treated with an adsorbent, followed by subjecting it to dry fractionation. An apparatus for refining and fractionation of palm oil comprising means for treating palm oil or palm fractionated oil with an adsorbent and dry fractionation means connected thereto is also disclosed.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: July 27, 1993
    Assignee: Fuji Oil Company, Limited
    Inventors: Yuji Kuwabara, Hiroshi Hidaka, Shinichi Imai, Ayumi Yabuuchi, Masaaki Miyabe