Patents by Inventor Ulrich Hammon

Ulrich Hammon 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: 20210309598
    Abstract: Process for inhibiting the undesired free-radical polymerization of acrylic acid present in a liquid phase P, wherein the acrylic acid content of P is at least 10% by weight, the liquid phase P comprises in the range from 25 to 1000 ppmw of glyoxal based on the weight of the acrylic acid present in P and the liquid phase P is admixed with furfural in an amount that results in a furfural content in the range from 25 to 1000 ppmw based on the weight of the acrylic acid present in P. Liquid phase P, wherein the acrylic acid content of P is at least 10% by weight and the liquid phase P comprises in the range from 25 to 1000 ppmw of glyoxal and in the range from 25 to 1000 ppmw of furfural in each case based on the weight of the acrylic acid present in P.
    Type: Application
    Filed: July 16, 2019
    Publication date: October 7, 2021
    Inventors: Nicole JANSSEN, Peter ZUROWSKI, Ulrich HAMMON, Sylke HAREMZA
  • Patent number: 10682631
    Abstract: Multimetal oxide composition comprising Mo, Bi, Fe, Cu and one or more than one of the elements Co and Ni and use thereof.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: June 16, 2020
    Assignee: BASF SE
    Inventors: Kazuhiko Amakawa, Christian Walsdorff, Klaus Joachim Mueller-Engel, Cornelia Katharina Dobner, Ulrich Hammon
  • Patent number: 10493376
    Abstract: The present invention relates to a column (1) for thermal treatment of fluid mixtures, having a cylindrical, vertically aligned column body (2) which forms a column cavity (3), having a sequence of vertically spaced-apart dual-flow mass transfer trays (8) which are mounted in the column cavity (3) and which have orifices for passage of liquid and gas in countercurrent, and having at least one gas entry orifice (5) disposed below the lowermost of the sequence of dual-flow mass transfer trays (8). It is a characteristic feature of the column of the invention that a gas distribution tray (9) which is disposed between the lowermost of the sequence of dual-flow mass transfer trays (8) and the gas entry orifice (5) has orifices (32) for vertical passage of gas which can be introduced into the column cavity (3) via the gas entry orifice (5), the orifices (32) being formed so as to bring about equal gas distribution over the column cross section.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: December 3, 2019
    Assignee: BASF SE
    Inventors: Ulrich Hammon, Thomas Walter
  • Patent number: 10471369
    Abstract: The present invention relates to a chimney tray (3) for a column (1) for thermal treatment of fluid mixtures, comprising a collecting tray (4) and at least two chimneys (5-1, 5-2) spaced apart horizontally in the collecting tray (4), where each chimney (5-1, 5-2) forms a vertically aligned chimney body (6-1, 6-2) which forms a passage orifice (7-1, 7-2) through the collecting tray (4), and has a cover unit (8-1, 8-2) arranged spaced apart from the chimney body (6-1, 6-2), and where the cover unit (8-1, 8-2) covers the respective passage orifices (7-1, 7-2) in the vertical direction.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: November 12, 2019
    Assignee: BASF SE
    Inventors: Ulrich Hammon, Thomas Walter
  • Publication number: 20190337870
    Abstract: Process for preparing butadiene from n-butenes, which has a start-up phase and an operating phase and the operating phase of the process comprises the steps: A) provision of a feed gas stream a1 comprising n-butenes; B) introduction of the feed gas stream a1 comprising n-butenes, an oxygen-comprising gas stream a2 and an oxygen-comprising recycle gas stream d2 into at least one oxidative dehydrogenation zone and oxidative dehydrogenation of n-butenes to butadiene, giving a product gas stream b comprising butadiene; C) cooling and compression of the product gas stream b, giving at least one aqueous condensate stream c1 and a gas stream c2 comprising butadiene; D) introduction of the gas stream c2 into an absorption zone and separation of incondensable and low-boiling gas constituents as gas stream d from the gas stream c2 by absorption of the C4 hydrocarbons in an absorption medium, giving an absorption medium stream loaded with C4 hydrocarbons and the gas stream d, and recirculation of the gas stream d as re
    Type: Application
    Filed: August 8, 2017
    Publication date: November 7, 2019
    Inventors: JAN UNGELENK, Oliver HAMMEN, Ulrich HAMMON, Rainer ECKRICH, Signe UNVERRICHT, Christian WALSDORFF, Heinz BOELT, Hendrik REYNEKE, Christine TOEGEL, Anton WELLENHOFER, Ulrike WENNING
  • Patent number: 10413841
    Abstract: The present invention relates to a column (1) for thermal treatment of fluid mixtures, having a cylindrical, vertical column body (2) which forms a column cavity (3), a plurality of trays (8) mounted with vertical spacing in the column cavity (3), and a support construction (9) which supports at least one of the trays (8) in vertical direction. It is a characteristic feature of the inventive column (1) that the support construction (9) has a plurality of orifices (12) which allow horizontal mass transfer through the support construction (9). The invention further relates to a tray device for such a column and to a thermal separation process between at least one gas ascending within such a column (1) and at least one liquid descending within the column (1).
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: September 17, 2019
    Assignee: BASF SE
    Inventors: Ulrich Hammon, Thomas Walter
  • Publication number: 20190224651
    Abstract: Multimetal oxide composition comprising Mo, Bi, Fe, Cu and one or more than one of the elements Co and Ni and use thereof.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 25, 2019
    Applicant: BASF SE
    Inventors: Kazuhiko AMAKAWA, Christian WALSDORFF, Klaus Joachim MUELLER-ENGEL, Cornelia Katharina DOBNER, Ulrich HAMMON
  • Patent number: 10343969
    Abstract: A plant (1) for recovering acrylic acid, which includes: a absorption column (201); a dissociation column (205); a first line (101) connected to the dissociation column (205); a second line (102) connecting the absorption column (201) and the dissociation column (205); a third line (103) feeding a substream of the mother acid obtained in the crystallization into the dissociation column (205); a fourth line (104) connecting the crystallization apparatus and the absorption column (201); and a fifth line (105) connecting the dissociation column (205) and the absorption column (201).
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: July 9, 2019
    Assignee: BASF SE
    Inventors: Ulrich Hammon, Thomas Walter, Markus Ottenbacher, Frank Huetten
  • Patent number: 10239033
    Abstract: A reactor system (1) having a reactor 3, at least one cooler (5) connected to the reactor (3), at least one pump (7) for circulating at least some of a liquid heat-transfer medium (9), wherein the pump (7) is connected to the reactor (3) and/or the at least one cooler (5), and a container (11) for collecting the liquid heat-transfer medium (9) is provided. The container (11) is connected to the reactor (3) and/or the at least one cooler (5) and is disposed substantially below the reactor (3) and/or the at least one cooler (5). Also provided are exothermic reactions which are conducted in the reactor system.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: March 26, 2019
    Assignee: BASF SE
    Inventors: Ulrich Hammon, Thomas Walter
  • Patent number: 10183234
    Abstract: The invention relates to a crossflow tray for a mass transfer column (27) in which a gas is conducted in countercurrent to a liquid, the crossflow tray (1) having passage orifices (3) for the gas and at least two downcomers (5), the downcomers (5) projecting beyond the top surface of the crossflow tray (1) and a collecting cup (13) being disposed beneath each downcomer (5). The downcomer (5) projects into the collecting cup (13), the minimum horizontal cross-sectional area of the collecting cup (13) is 1.2 to 4 times greater than the horizontal cross-sectional area of the downcomer (5) at the outlet, and the collecting cup (13) has a circumferential wall (15) having an overflow (19). The invention further relates to a mass transfer column comprising the crossflow trays and to a use of the mass transfer column.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: January 22, 2019
    Assignee: BASF SE
    Inventors: Tim Blaschke, Ulrich Cremer, Ulrich Hammon
  • Patent number: 10174935
    Abstract: A system (1) and method for operating a liquid gas evaporator (3), comprising an evaporator (3), a trough (5) carrying the evaporator (3), a housing (7) which surrounds the evaporator (3) on three sides, at least one detector (9) for sensing liquid gas arranged in the trough (5), a line (11) for the distribution of vapor D on the fourth, non-housed side of the evaporator (3) arranged at the margin of the trough (5) which is not closed off by the housing (7), a feed (13), connected to the line (11), and a regulating valve (15) provided on the feed (13) and connected to the detector (9) and at least one shut-off valve (17).
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: January 8, 2019
    Assignee: BASF SE
    Inventors: Ulrich Hammon, Thomas Walter
  • Patent number: 10173147
    Abstract: The present invention relates to an apparatus (1) for separation of a target product from a liquid phase P comprising the target product, comprising at least one primary space (3) for a heat transfer medium W, at least one first feed unit (5a) and one first removal unit (5b) for the heat transfer medium W, at least one secondary space (7) for the liquid phase P, at least one second feed unit (9) for the liquid phase P, at least one crystallization surface (13) which divides the primary space (3) and the secondary space (7), at least one second removal unit (15) for the target product and at least one application unit (11) for a liquid phase P0 essentially directly to the crystallization surface (13) or the surfaces of lines that conduct the heat transfer medium W. The present invention further relates to a process for removing a target product from a liquid phase P comprising the target product.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: January 8, 2019
    Assignee: BASF SE
    Inventors: Joerg Heilek, Rainer Askani, Ulrich Hammon, Wolfgang Schneider, Thomas Walter
  • Patent number: 10093551
    Abstract: The present invention relates to a process for treating secondary components obtained in acrolein and/or (meth)acrylic acid production, comprising the steps of: a) contacting at least one wastewater stream (201) comprising at least a portion of the water of reaction removed in a first stage of a saturation column (101) with at least one process offgas stream (203), b) introducing energy by means of a first heat transferer (103) provided in a first saturation circuit (301) into the first stage of the saturation column (101), c) partly vaporizing the wastewater stream (201) into the process offgas stream (203) and passing the combined gas stream (205) into a second stage of the saturation column (101), d) drawing off a concentrated wastewater stream (207) from the bottom (1011) of the first stage of the saturation column (101) and feeding it to the top (1023) of the second stage of the saturation column (101), e) introducing energy by means of a second heat transferer (105) provided in a second circuit (303) i
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 9, 2018
    Assignee: BASF SE
    Inventors: Ulrich Hammon, Thomas Walter, Christian Raith
  • Publication number: 20180147561
    Abstract: Process for producing a multimetal oxide catalyst comprising molybdenum, chromium and at least one further metal by mixing of a pulverulent multimetal oxide comprising molybdenum and at least one further metal but no chromium with pulverulent chromium(III) oxide and thermal treatment of the resulting pulverulent mixture in the presence of oxygen at a temperature in the range from 350° C. to 650° C.
    Type: Application
    Filed: May 4, 2016
    Publication date: May 31, 2018
    Inventors: Jan UNGELENK, Ulrich HAMMON, Kazuhiko AMAKAWA, Philipp GRÜNE, Christian WALSDORFF
  • Patent number: 9958201
    Abstract: The present disclosure includes a column (1) having a cylindrical, vertical column body (2) forming a column cavity (3), and a mass transfer tray (4) disposed in the column cavity (3) and forming a collecting area (5). The column (1) is characterized by a circulation device (9) having at least one drain orifice (10) formed in the column body (2) above the collecting area (5), a circulation line (11) in fluid connection with the drain orifice (10) and at least one recycling orifice (14; 14-1 to 14-3) which is in fluid connection with the circulation line (11) and is formed in the column body (2) above the collecting area (5). Also disclosed herein is a thermal separating process in which a gas ascends within a column (1) of the present disclosure, and a liquid descends within the column (1), said gas and/or liquid containing (meth)acrylic monomers.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: May 1, 2018
    Assignee: BASF SE
    Inventors: Ulrich Hammon, Thomas Walter
  • Patent number: 9925526
    Abstract: The invention relates to an oxidation catalyst comprising at least one inorganic, oxidic or ceramic, shaped support body having a BET surface area of less than 0.5 m2/g, based on the support, which is at least partly coated with a catalytically active multielement oxide, the catalyst being precious metal-free and the shaped support body having the form of a saddle whose saddle surface is curved oppositely in the two principal directions, to a process for producing it, to its use in various catalytic gas phase oxidations, and to corresponding processes for catalytic gas phase oxidation.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: March 27, 2018
    Assignee: BASF SE
    Inventors: Ulrich Hammon, Cathrin Alexandra Welker-Nieuwoudt, Josef Macht, Christian Walsdorff, Cornelia Katharina Dobner
  • Patent number: 9797657
    Abstract: A heat exchanger (1) contains: a bundle of at least two heat exchanger tubes (3), a heat exchanger housing (5) surrounding the bundle of heat exchanger tubes (3), wherein a liquid heat-transfer medium (7) is passed around the bundle of heat exchanger tubes (3) in the heat exchanger housing (5), a heat exchanger cap (9) sealing the top of the heat exchanger housing (5), a heat exchanger bottom (11) sealing the bottom of the heat exchanger housing (5), a feed point (13) for the heat-transfer medium (7), an outlet (15) for the heat-transfer medium (7), an emergency relief port (17) disposed in proximity to the heat exchanger cap (9). The heat exchanger (1) contains a safety device (19) disposed in proximity to the heat exchanger bottom (11).
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: October 24, 2017
    Assignee: BASF SE
    Inventors: Ulrich Hammon, Thomas Walter, Armin Schraut
  • Publication number: 20170267621
    Abstract: A plant (1) for recovering acrylic acid, which includes: a absorption column (201); a dissociation column (205); a first line (101) connected to the dissociation column (205); a second line (102) connecting the absorption column (201) and the dissociation column (205); a third line (103) feeding a substream of the mother acid obtained in the crystallization into the dissociation column (205); a fourth line (104) connecting the crystallization apparatus and the absorption column (201); and a fifth line (105) connecting the dissociation column (205) and the absorption column (201).
    Type: Application
    Filed: June 7, 2017
    Publication date: September 21, 2017
    Applicant: BASF SE
    Inventors: Ulrich HAMMON, Thomas WALTER, Markus OTTENBACHER, Frank HUETTEN
  • Patent number: 9700876
    Abstract: A hollow cylindrical shaped catalyst body for gas phase oxidation of an alkene to an ?,?-unsaturated aldehyde and/or an ?,?-unsaturated carboxylic acid comprises a compacted multimetal oxide having an external diameter ED, an internal diameter ID and a height H, wherein ED is in the range from 3.5 to 4.5 mm; the ratio q=ID/ED is in the range from 0.4 to 0.55; and the ratio p=H/ED is in the range from 0.5 to 1. The shaped catalyst body is mechanically stable and catalyzes the partial oxidation of an alkene to the products of value with high selectivity. It provides a sufficiently high catalyst mass density of the catalyst bed and good long-term stability with acceptable pressure drop.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: July 11, 2017
    Assignee: BASF SE
    Inventors: Josef Macht, Christian Walsdorff, Cornelia Katharina Dobner, Stefan Lipp, Cathrin Alexandra Welker-Nieuwoudt, Ulrich Hammon, Holger Borchert
  • Patent number: 9701612
    Abstract: A process for recovering acrylic acid, including: a) division of a heated mother acid stream in direction of an absorption a condensation column and a dissociation column; b) feeding of a heated mother acid substream as runback to the dissociation column; c) feeding-in of at least one stripping gas stream to the dissociation column; d) feeding-in of a secondary component stream comprising oligomeric acrylic acid from the absorption column to the dissociation column; e) dissociation of part of oligomeric acrylic acid in the dissociation column to give monomeric acrylic acid; f) removal of secondary components comprised in the secondary component stream in the dissociation column; g) discharge of monomeric acrylic acid as gas mixture with introduced circulating stripping gas stream from the dissociation column; and h) feeding-in of the gas mixture to the absorption column.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: July 11, 2017
    Assignee: BASF SE
    Inventors: Ulrich Hammon, Thomas Walter, Markus Ottenbacher, Frank Huetten