Patents Assigned to Solvay (Societe Anonyme)
  • Publication number: 20110105722
    Abstract: Method for preparing a peptide or a peptide derivative which comprises it least one step in which a free amino acid or a free peptide is reacted with a urethane-protected amino acid N-carboxyanhydride (UNCA) solution.
    Type: Application
    Filed: March 6, 2009
    Publication date: May 5, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Roland Callens, Laurent Jeannin
  • Publication number: 20110098446
    Abstract: Process for the separation of a biomolecule containing at least one cationic group from a liquid medium containing said biomolecule, which comprises the use of a tetraphenylborate (TPB) salt.
    Type: Application
    Filed: June 17, 2009
    Publication date: April 28, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Roland Callens, Laurent Jeannin
  • Publication number: 20110092671
    Abstract: A process for the manufacture of peptide Omiganan in solution phase. Novel intermediates in the process for the manufacture of Omiganan and processes for the manufacture of these intermediates.
    Type: Application
    Filed: June 17, 2008
    Publication date: April 21, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Roland Callens, Laurent Jeannin, Georges Blondeel
  • Publication number: 20110082267
    Abstract: Process for the manufacture of 1,2-dichlorethane and of at least one ethylene derivative compound which is different from 1,2-dichloroethane starting with a hydrocarbon source according to which: a) the hydrocarbon source is subjected to a simplified cracking which produces a mixture of products containing ethylene and other constituents; b) the mixture of products is separated at least into a fraction A enriched with compounds which are lighter than ethylene, containing part of the ethylene, into a fraction B enriched with ethylene and into a heavy fraction C; and c) one fraction among fraction A and fraction B is conveyed to the manufacture of 1,2-dichloroethane and optionally of any compound derived therefrom, optionally after having been subjected to an acetylene hydrogenation, while the other fraction is conveyed to the manufacture of at least one ethylene derivative compound manufactured directly starting with ethylene which is different from 1,2-dichloroethane and optionally of any compound derived the
    Type: Application
    Filed: May 29, 2009
    Publication date: April 7, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Michel Lempereur, Dominique Balthasart, Michel Strebelle, Massimo Giansante
  • Publication number: 20110077439
    Abstract: Process for the production of ethylene for chemical use starting with a hydrocarbon source according to which: a) the hydrocarbon source is subjected to a first cracking step, namely a pyrolysis step carried out in a cracking oven, thus producing a mixture of cracking products; b) the mixture of cracking products is subjected to a succession of treatment steps, including a compression step, which makes it possible to obtain a purified crude gas stream; c) the purified crude gas stream is then cooled to a temperature where hydrocarbons with 6 and more carbon atoms condense so that they can be removed from the purified crude gas stream; d) the resulting purified gas stream is afterwards supplied to one separating column, where a fraction A containing hydrogen, methane and ethylene is separated at the head of the column and a heavy fraction C is separated at the bottom of the column; e) a part of the reflux of this column is supplied to a refrigeration cycle leading to a fraction B enriched with ethylene; and f)
    Type: Application
    Filed: May 28, 2009
    Publication date: March 31, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Joachim Kotter, Hans-Dieter Winkler, Peter Mews, Michel Lempereur, Dominique Balthasart, Michel Strebelle
  • Publication number: 20110077366
    Abstract: Process for the manufacture of at least one ethylene derivative compound starting from a low value residual gas, preferably a refinery off-gas (ROG), according to which: a) the low value residual gas is subjected to a series of treatment steps in a low value residual gas recovery unit in order to remove the undesirable components present therein and to obtain a mixture of products containing ethylene and other constituents; b) the mixture of products is fractionated in one fractionation step into one fraction A containing almost all the ethylene, optionally into one individual fraction of ethane, and into one heavy fraction C; and c) the fraction A is conveyed to the manufacture of at least one ethylene derivative compound.
    Type: Application
    Filed: May 29, 2009
    Publication date: March 31, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Andre Petitjean, Michel Lempereur, Dominique Balthasart, Michel Strebelle
  • Publication number: 20110071263
    Abstract: Process for the manufacture of at least one ethylene derivative compound starting with a hydrocarbon source according to which: a) the hydrocarbon source is subjected to a simplified cracking which produces a mixture of products containing ethylene and other constituents; b) the mixture of products is fractionated in one fractionation step into one fraction containing almost all the ethylene (fraction A), optionally into one individual fraction of ethane and into one heavy fraction (fraction C); and c) the fraction A is conveyed to the manufacture of at least one ethylene derivative compound.
    Type: Application
    Filed: May 29, 2009
    Publication date: March 24, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Michel Lempereur, Dominique Balthasart, Michel Strebelle, Joachim Kotter, Hans-Dieter Winkler, Peter Mews
  • Publication number: 20110067831
    Abstract: Process for the bleaching of paper pulp in which an aqueous suspension of paper pulp is subjected to a bleaching treatment with hydrogen peroxide in the presence of magnesium hydroxide and of at least one poly-?-hydroxyacrylic acid, its salt or their mixture.
    Type: Application
    Filed: May 25, 2009
    Publication date: March 24, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventor: Pierre Dournel
  • Patent number: 7909272
    Abstract: Process for milling a substance selected from sodium carbonate, sodium bicarbonate and sodium sesquicarbonate or trona, in which a cleaning agent is introduced into a mill for the purpose of obtaining a powder with a mean diameter of less than 100 ?m and of inhibiting the formation of incrustations in the mill.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: March 22, 2011
    Assignee: Solvay (Societe Anonyme)
    Inventors: Marc Thijssen, Maxime Franc
  • Publication number: 20110064637
    Abstract: Process for the joint production of sodium carbonate and sodium bicarbonate crystals, according to which: a solid powder derived from sodium sesquicarbonate, having a mean particle diameter comprised between 0.1 and 10 mm is dissolved in water; the resulting water solution is introduced into a crystallizer, wherein a first water suspension comprising sodium carbonate crystals is produced; the first water suspension is subjected to a separation, in order to produce crystals comprising sodium carbonate on the one hand, which are valorized, and a mother liquor on the other hand; and a part of the mother liquor is taken out of the crystallizer and put into contact in, a gas liquid contactor, with a gas comprising carbon dioxide, in order to produce a second water suspension comprising sodium bicarbonate crystals, which are separated and valorized. A reagent powder comprising sodium bicarbonate crystals made by such process.
    Type: Application
    Filed: May 12, 2009
    Publication date: March 17, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Perrine Davoine, Francis M. Coustry, Jean-Paul Detournay, Kurt Allen
  • Publication number: 20110065817
    Abstract: Process for recycling a fiber reinforced polymer article, according to which the article, eventually cut in fragments, is dissolved in a solvent capable of dissolving the polymer but not the fibers and which is susceptible of forming an azeotrope with water, forming a solution; the fibers are recovered from the solution; the fibers are washed with solvent by putting them in the form of a slurry in the solvent and by agitating the slurry and/or by making the solvent circulate through it; the washed fibers are recovered from the slurry; and the recovered fibers are submitted to a stripping with steam in order to substantially remove the solvent.
    Type: Application
    Filed: May 7, 2009
    Publication date: March 17, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Jacques Van Weynbergh, Stephane Noel
  • Patent number: 7906692
    Abstract: Process for preparing a chlorohydrin, comprising the following steps: (a) a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof whose alkali metal and/or alkaline earth metal content is less than or equal to 5 g/kg, a chlorinating agent and an organic acid are reacted so as to give a mixture containing at least chlorohydrin and by-products (b) at least part of the mixture obtained in step (a) is subjected to one or more treatments in steps subsequent to step (a) (c) at least one of the steps subsequent to step (a) consists in oxidation at a temperature greater than or equal to 800° C.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: March 15, 2011
    Assignee: Solvay (Societe Anonyme)
    Inventors: Philippe Krafft, Patrick Gilbeau, Dominique Balthasart, Valentine Smets
  • Patent number: 7906691
    Abstract: Process for preparing a chlorohydrin, comprising a step in which a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof is subjected to reaction with a chlorinating agent containing hydrogen chloride and at least one other step, carried out in apparatus made from or covered with materials which are resistant to the chlorinating agent under the conditions in which this step is realized.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: March 15, 2011
    Assignee: Solvay (Societe Anonyme)
    Inventors: Philippe Krafft, Patrick Gilbeau, Dominique Balthasart, Valentine Smets, Christian Franck
  • Publication number: 20110060071
    Abstract: Vinylidene chloride copolymer composition characterized in that it comprises: (A) at least one vinylidene chloride copolymer which is a copolymer composed of vinylidene chloride in an amount of at least 50 wt % and of at least one comonomer at least one of which is chosen from (meth)acrylic monomers corresponding to the general formula: CH2?CR1R2, in which R1 is chosen from hydrogen and the methyl radical and R2 is the —CO—R3 radical in which R3 is the —O—R4 radical with R4 chosen from the linear or branched alkyl radicals containing from 1 to 18 carbon atoms optionally bearing one or more —OH radicals, the epoxyalkyl radicals containing from 2 to 10 carbon atoms and the alkoxyalkyl radicals containing a total of 2 to 10 carbon atoms; (B) from 0.5 to 4 parts by weight, per 100 parts by weight of (A), of epoxidized soybean oil; (C) from 0.
    Type: Application
    Filed: November 21, 2008
    Publication date: March 10, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Yves Vanderveken, Pascal Dewael, Giovanni Fontana
  • Patent number: 7901831
    Abstract: Monolayer ion-exchange membrane structured in the thickness comprising ion-exchange sites covalently bonded to a support polymer, the membrane comprising two surface zones located on either side of a mid-zone, each surface zone having a thickness of not more than 15% of the total thickness of the membrane, in which the surface zones have a mean ion-exchange site density Dsurface calculated on the thickness of the surface zones of at least Dtotal.
    Type: Grant
    Filed: October 10, 2005
    Date of Patent: March 8, 2011
    Assignee: SOLVAY (Société Anonyme)
    Inventor: John A. Brunea
  • Patent number: 7892576
    Abstract: Tablet comprising at least one biologically active substance and an excipient, in which the excipient contains calcium carbonate and at least one additive selected from fatty acids, their salts, their esters, lipid materials, polysaccharides, polyvinylpyrrolidone and polyvinylpyrrolidone derivatives, acrylic compounds, mono-, di- or triglyceride esters, animal proteins, and mixtures of at least two of these. Method for producing these tablets. Use of calcium carbonate in tablets containing at least one biologically active substance, for the prolonged release of this substance.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: February 22, 2011
    Assignee: Solvay (Societe Anonyme)
    Inventors: Karine Cavalier, Didier Sy, Roberto Rosa, Bernard Bataille, Michele Delalonde, Gilles Baylac, Alberto Galasco
  • Patent number: 7893193
    Abstract: Process for preparing a chlorohydrin, comprising the following steps: (a) a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof is reacted with a chlorinating agent and an organic acid so as to give a mixture containing the chlorohydrin and esters of the chlorohydrin (b) at least part of the mixture obtained in step (a) is subjected to one or more treatments in steps subsequent to step (a) (c) polyhydroxylated aliphatic hydrocarbon is added to at least one of the steps subsequent to step (a), so as to react, at a temperature greater than or equal to 20° C., with the esters of the chlorohydrin, so as to form, at least partly, esters of the polyhydroxylated aliphatic hydrocarbon.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: February 22, 2011
    Assignee: Solvay (Société Anonyme)
    Inventors: Philippe Krafft, Patrick Gilbeau, Dominique Balthasart, Valentine Smets
  • Patent number: 7893195
    Abstract: Method for recovering a polymer from a liquid medium (1) substantially containing the polymer and a solvent for the latter, wherein: (a) this liquid medium (1) is injected into a reactor (2) containing a stirred substantially monophase liquid mixture comprising a major fraction by weight of a non-solvent and a minor fraction by weight of a solvent, the mixture having a composition and temperature such that the polymer precipitates therefrom progressively; (b) the polymer is recovered in the form of particles in suspension (5) in a liquid rich in non-solvent; (c) the polymer particles (9) are separated from the liquid.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: February 22, 2011
    Assignee: SOLVAY (Societe Anonyme)
    Inventors: Eric Fassiau, Bernard Vandenhende, Jean-Raphael Caille, Jean-Christophe Lepers
  • Publication number: 20110031130
    Abstract: Method for purifying an aqueous composition by removing silicon therefrom, according to which a compound comprising aluminum is added to the aqueous composition in order to obtain a molar aluminum content greater than the molar silicon content in said composition, the pH of the composition is controlled and maintained at a value higher than or equal to 8 and lower than or equal to 10, and the precipitate formed is separated from the aqueous suspension obtained.
    Type: Application
    Filed: April 27, 2009
    Publication date: February 10, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventor: Alessandra Pastacaldi
  • Publication number: 20110031185
    Abstract: A method for the combined chemical oxidation/assisted bioremediation of contaminated materials, comprising contacting a contaminated material with at least one metal chelate and at least one peroxide compound.
    Type: Application
    Filed: October 18, 2010
    Publication date: February 10, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Noel BOULOS, Alastair McNeillie, Jason Muessig