Patents by Inventor Imad Moussallem
Imad Moussallem has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20220306574Abstract: The invention relates to a single cycle process for preparing D,L-methionine from an alkali methioninate solution obtained by alkaline hydrolysis of 5-(2-methylmercaptoethyl)hydantoin, in which the D,L-methionine is obtained by neutralizing the alkali methioninate solution with carbon dioxide at elevated temperature and subsequently crystallizing D,L-methionine in the presence of seed crystals.Type: ApplicationFiled: June 17, 2020Publication date: September 29, 2022Applicant: Evonik Operations GmbHInventors: Johannes WEFER, Hans-Joachim HASSELBACH, Tobias WINKLER, Danny DE CORTE, Bernd DRAPAL, Imad MOUSSALLEM, Christian RENNER, Christian RÜCKRIEGEL
-
Publication number: 20220204435Abstract: The present invention pertains to a process for preparing 3-hydroxy-3-methylbutyrate (HMB) or a salt thereof, the method comprising (a) reacting isobutylene oxide with cyanide in order to obtain 3-hydroxy-3-methylbutyronitrile, and (b) hydrolyzing the 3-hydroxy-3-methylbutyronitrile obtained in step (a) in order to obtain HMB, wherein hydrolysis step (b) is performed using either at least one nitrilase enzyme or, alternatively, using a combination of enzymes, said combination comprising at least one nitrile hydratase and at least one amidase.Type: ApplicationFiled: March 25, 2020Publication date: June 30, 2022Applicant: EVONIK OPERATIONS GMBHInventors: Timo STAHL, Axel RONNEBURG, Imad MOUSSALLEM, Juliette HALLI, Petra PICHA
-
Publication number: 20220048855Abstract: The present invention pertains to a method for producing methionine or salts or derivatives thereof from hydrogen cyanide (HCN), the method comprising a step of producing 2-hydroxy-4-(methylthio)butyronitrile (MMP-CN), or a crude product mixture comprising MMP-CN, by contacting a hydrogen cyanide (HCN) process gas mixture prepared according to the Andrussow process from methane, ammonia and oxygen, with 3-methylmercaptopropionaldehyde (MMP), wherein the HCN process gas mixture is obtained from the crude HCN process gas mixture by adjusting the amount of ammonia to between 20% (v/v) and 60% (v/v) of the amount of the ammonia in the crude HCN process gas mixture.Type: ApplicationFiled: December 13, 2019Publication date: February 17, 2022Applicant: EVONIK OPERATIONS GMBHInventors: Daniel SUDHOFF, Judith HIEROLD, Philipp ROTH, Imad MOUSSALLEM, Ulf BINDERNAGEL, Christian RENNER
-
Patent number: 10337110Abstract: An apparatus for chlor-alkali electrolysis, comprising a cathode half-cell, an oxygen-consuming electrode arranged therein, a conduit for supply of gaseous oxygen to the cathode half-cell and a conduit for purging the cathode half-cell with inert gas, enables the flexible use of power by a method in which chlorine is produced in the apparatus by chlor-alkali electrolysis, wherein, when power supply is low, the oxygen-consuming electrode is supplied with gaseous oxygen, and oxygen is reduced at the oxygen-consuming electrode at a first cell voltage, and when power supply is high, the oxygen-consuming electrode is not supplied with any oxygen, and hydrogen is generated at the cathode at a second cell voltage which is higher than the first cell voltage.Type: GrantFiled: November 28, 2014Date of Patent: July 2, 2019Assignee: Covestro Deutschland AGInventors: Georg Markowz, Imad Moussallem, Rüdiger Schütte, Jürgen Erwin Lang
-
Patent number: 10023470Abstract: A controlled preparation of octachlorotrisilane and higher polychlorosilane such as DCTS and DCPS from monomeric chlorosilane, proceeds by exposing the chlorosilane to a nonthermal plasma and recycling chlorosilane that has not been converted to octachlorotrisilane into the plasma.Type: GrantFiled: April 25, 2016Date of Patent: July 17, 2018Assignee: EVONIK DEGUSSA GMBHInventors: Imad Moussallem, Juergen Erwin Lang, Hartwig Rauleder, Martin Trocha, Nicole Brausch
-
Patent number: 9994456Abstract: The invention relates to a process and an apparatus for preparation of polychlorosilanes from monomeric chlorosilanes, by subjecting the chlorosilanes to a thermal plasma.Type: GrantFiled: March 4, 2014Date of Patent: June 12, 2018Assignee: Evonik Degussa GmbHInventors: Juergen Erwin Lang, Hartwig Rauleder, Ekkehard Mueh, Imad Moussallem
-
Patent number: 9845248Abstract: The invention relates to a process and an apparatus for controlled preparation of octachlorotrisilane from monomeric chlorosilanes, by subjecting the chlorosilanes to a thermal plasma.Type: GrantFiled: March 4, 2014Date of Patent: December 19, 2017Assignee: Evonik Degussa GmbHInventors: Juergen Erwin Lang, Hartwig Rauleder, Ekkehard Mueh, Imad Moussallem
-
Patent number: 9561965Abstract: The present invention relates to a continuous process for hydrogenating halogen-containing silane compounds having at least three silicon atoms, in which at least one halogen-containing silane compound having at least three silicon atoms and at least one hydrogenating agent are converted continuously to form at least one hydridosilane compound having at least 3 silicon atoms and oxidized hydrogenating agent, and wherein oxidized hydrogenating agent is withdrawn and reduced, and the reaction product of this reduction reaction is sent back to the hydrogenation, to the hydridosilane compounds obtainable by this process and to the use thereof.Type: GrantFiled: November 27, 2013Date of Patent: February 7, 2017Assignee: Evonik Degussa GmbHInventors: Min-Zae Oh, Jens Haubrock, Thorsten Schwaertzke, Imad Moussallem, Martin Trocha
-
Publication number: 20160318768Abstract: A controlled preparation of octachlorotrisilane and higher polychlorosilane such as DCTS and DCPS from monomeric chlorosilane, proceeds by exposing the chlorosilane to a nonthermal plasma and recycling chlorosilane that has not been converted to octachlorotrisilane into the plasma.Type: ApplicationFiled: April 25, 2016Publication date: November 3, 2016Applicant: Evonik Degussa GmbHInventors: Imad MOUSSALLEM, Juergen Erwin LANG, Hartwig RAULEDER, Martin TROCHA, Nicole BRAUSCH
-
Publication number: 20160312369Abstract: An electrolysis cell for chlor-alkali electrolysis, having an anode half-cell, a cathode half-cell and a cation exchange membrane that separates the anode half-cell and the cathode half-cell from one another, an anode arranged in the anode half-cell for evolution of chlorine, an oxygen-consuming electrode arranged in the cathode half-cell as the cathode, a catholyte space which is formed between the cation exchange membrane and the oxygen-consuming cathode, and through which electrolyte flows, a gas space adjoining the oxygen-consuming electrode at a surface facing away from the catholyte space, a conduit for supply of gaseous oxygen to this gas space, a second cathode for generation of hydrogen arranged within the catholyte space and at least one conduit for purging of the gas space with inert gas, enables flexible use of power in a method in which, when power supply is low, the oxygen-consuming electrode is supplied with gaseous oxygen and oxygen is reduced at the oxygen-consuming electrode at a first cellType: ApplicationFiled: December 16, 2014Publication date: October 27, 2016Applicant: Evonik Degussa GmbHInventors: IMAD MOUSSALLEM, GEORG MARKOWZ
-
Publication number: 20160305030Abstract: An apparatus for chlor-alkali electrolysis, comprising a cathode half-cell, an oxygen-consuming electrode arranged therein, a conduit for supply of gaseous oxygen to the cathode half-cell and a conduit for purging the cathode half-cell with inert gas, enables the flexible use of power by a method in which chlorine is produced in the apparatus by chlor-alkali electrolysis, wherein, when power supply is low, the oxygen-consuming electrode is supplied with gaseous oxygen, and oxygen is reduced at the oxygen-consuming electrode at a first cell voltage, and when power supply is high, the oxygen-consuming electrode is not supplied with any oxygen, and hydrogen is generated at the cathode at a second cell voltage which is higher than the first cell voltage.Type: ApplicationFiled: November 28, 2014Publication date: October 20, 2016Applicant: Evonik Degussa GmbHInventors: GEORG MARKOWZ, IMAD MOUSSALLEM, RÜDIGER SCHÜTTE, JÜRGEN ERWIN LANG
-
Publication number: 20160046494Abstract: The invention relates to a process and an apparatus for controlled preparation of octachlorotrisilane from monomeric chlorosilanes, by subjecting the chlorosilanes to a thermal plasma.Type: ApplicationFiled: March 4, 2014Publication date: February 18, 2016Applicant: EVONIK DEGUSSA GMBHInventors: Jürgen Erwin LANG, Hartwig RAULEDER, Ekkehard MÜH, Imad MOUSSALLEM
-
Publication number: 20160039681Abstract: The invention relates to a process and an apparatus for preparation of polychlorosilanes from monomeric chlorosilanes, by subjecting the chlorosilanes to a thermal plasma.Type: ApplicationFiled: March 4, 2014Publication date: February 11, 2016Applicant: Evonik Degussa GmbHInventors: Jürgen Erwin LANG, Hartwig RALEDER, Ekkehard MÜH, Imad MOUSSALLEM
-
Patent number: 9243337Abstract: A multilayer oxygen consuming electrode having a side facing the oxygen-containing gas and a side facing the alkaline electrolyte, wherein the electrode includes at least one support, and at least two layers containing a catalyst and a hydrophobic material, wherein the outermost layer facing the gas side has a lower proportion of catalyst than the outermost layer facing the electrode side and wherein the proportion of hydrophobic material is not more than 8% by weight based on the total amount of the catalyst the hydrophobic material.Type: GrantFiled: June 13, 2011Date of Patent: January 26, 2016Assignee: Covestro Duetschland AGInventors: Thomas Turek, Imad Moussallem, Andreas Bulan, Norbert Schmitz, Peter Weuta
-
Publication number: 20150307363Abstract: The present invention relates to a continuous process for hydrogenating halogen-containing silane compounds having at least three silicon atoms, in which at least one halogen-containing silane compound having at least three silicon atoms and at least one hydrogenating agent are converted continuously to form at least one hydridosilane compound having at least 3 silicon atoms and oxidized hydrogenating agent, and wherein oxidized hydrogenating agent is withdrawn and reduced, and the reaction product of this reduction reaction is sent back to the hydrogenation, to the hydridosilane compounds obtainable by this process and to the use thereof.Type: ApplicationFiled: November 27, 2013Publication date: October 29, 2015Applicant: Evoniki Degussa GmbHInventors: Min-Zae OH, Jens HAUBROCK, Thorsten SCHWAERTZKE, Imad MOUSSALLEM, Martin TROCHA
-
Publication number: 20120052402Abstract: The present invention relates to a multilayer oxygen-consuming electrode having a side facing the oxygen-containing gas and a side facing the alkaline electrolyte, wherein the electrode includes at least one support, and at least two layers comprising a catalyst and a hydrophobic material, wherein the outermost layer facing the gas side has a lower proportion of catalyst than the outermost layer facing the electrolyte side and wherein the proportion of hydrophobic material is not more than 8% by weight based on the total amount of the catalyst and the hydrophobic material.Type: ApplicationFiled: June 13, 2011Publication date: March 1, 2012Applicant: Bayer MaterialScience AGInventors: Thomas Turek, Imad Moussallem, Andreas Bulan, Norbert Schmitz, Peter Weuta
-
Publication number: 20120000789Abstract: Electrolysis cell for membrane-supported electrolysis, comprising an oxygen-consuming cathode.Type: ApplicationFiled: December 29, 2009Publication date: January 5, 2012Applicant: Bayer Technology Services GMBHInventors: Thomas Turek, Imad Moussallem