CS75792A3 - Process for producing gas-permeable gauzes from noble metals for catalyticprocesses - Google Patents

Process for producing gas-permeable gauzes from noble metals for catalyticprocesses

Info

Publication number
CS75792A3
CS75792A3 CS92757A CS75792A CS75792A3 CS 75792 A3 CS75792 A3 CS 75792A3 CS 92757 A CS92757 A CS 92757A CS 75792 A CS75792 A CS 75792A CS 75792 A3 CS75792 A3 CS 75792A3
Authority
CS
Czechoslovakia
Prior art keywords
catalyticprocesses
gauzes
permeable
noble metals
producing gas
Prior art date
Application number
CS92757A
Other languages
Czech (cs)
Inventor
Siegfried Ing Blass
Horst Dr Ing Dubler
Thomas Ing Stoll
Original Assignee
Degussa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25901946&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CS75792(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Degussa filed Critical Degussa
Publication of CS75792A3 publication Critical patent/CS75792A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/58—Fabrics or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • B01J23/464—Rhodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/74—Iron group metals
    • B01J23/755—Nickel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/892—Nickel and noble metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/8926—Copper and noble metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • C01B21/265—Preparation by catalytic or non-catalytic oxidation of ammonia characterised by the catalyst
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • C01B21/267—Means for preventing deterioration or loss of catalyst or for recovering lost catalyst
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/20—Metallic fibres
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0242—Fabric incorporating additional compounds enhancing chemical properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Catalysts (AREA)
  • Knitting Of Fabric (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Wire Processing (AREA)

Abstract

For knitting round nets for use as catalysts in ammonia combustion and as recovery nets for platinum metals, wires of platinum with 4 to 12 % of rhodium or 4 to 12 % of palladium and rhodium and wires of palladium with 2 to 15 % of nickel or 2 to 15 % of copper or 2 to 15 % of nickel and copper are used, which must have a diameter from 50 to 120 mu m, a tensile strength from 900 to 1050 N/mm<2> and an elongation limit from 0.5 to 3 %. In addition, a flat-knitting machine having a pitch between 3.63 mm and 1.81 mm is required, the mesh length having to be between 2 and 6 mm.
CS92757A 1991-03-16 1992-03-13 Process for producing gas-permeable gauzes from noble metals for catalyticprocesses CS75792A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4108625 1991-03-16
DE4206199A DE4206199C1 (en) 1991-03-16 1992-02-28

Publications (1)

Publication Number Publication Date
CS75792A3 true CS75792A3 (en) 1992-10-14

Family

ID=25901946

Family Applications (1)

Application Number Title Priority Date Filing Date
CS92757A CS75792A3 (en) 1991-03-16 1992-03-13 Process for producing gas-permeable gauzes from noble metals for catalyticprocesses

Country Status (22)

Country Link
EP (1) EP0504723B1 (en)
JP (1) JPH0564746A (en)
KR (1) KR920017714A (en)
CN (1) CN1035042C (en)
AT (1) ATE93410T1 (en)
AU (1) AU644725B2 (en)
BG (1) BG60171B1 (en)
BR (1) BR9200886A (en)
CA (1) CA2063041A1 (en)
CS (1) CS75792A3 (en)
DE (2) DE4206199C1 (en)
DK (1) DK0504723T3 (en)
ES (1) ES2046903T3 (en)
FI (1) FI921093L (en)
HU (1) HU211812B (en)
IL (1) IL101187A0 (en)
MX (1) MX9201108A (en)
NO (1) NO300671B1 (en)
PL (1) PL166988B1 (en)
RU (1) RU2017520C1 (en)
TR (1) TR26402A (en)
YU (1) YU24892A (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274071A (en) * 1993-01-06 1994-07-13 Pgp Ind Inc Catalyst pack
DE4300791A1 (en) * 1993-01-14 1994-07-21 Heraeus Gmbh W C Knitted wire made of precious metal and process for its manufacture
US6073467A (en) * 1994-04-06 2000-06-13 Degussa Aktiengesellschaft Catalyst gauzes for gaseous reactions
DE4411774C1 (en) * 1994-04-06 1995-08-17 Degussa Metal gauze catalyst for gas reaction, esp. ammonia oxidn. to nitric acid
RU2150389C1 (en) * 1999-02-01 2000-06-10 Оао "Екатеринбургский Завод По Обработке Цветных Металлов" Packet of gas-permeable noble-metal grids for catalytic processes
RU2154020C1 (en) * 1999-08-25 2000-08-10 Оао "Екатеринбургский Завод По Обработке Цветных Металлов" Apparatus for capturing platinoids in ammonia catalytic oxidation process
RU2155097C1 (en) * 2000-01-14 2000-08-27 Хальзов Павел Иванович Catalytic element for ammonia conversion
JP2002100180A (en) 2000-09-22 2002-04-05 Toshiba Corp Magnetic disk drive
ES2229130T5 (en) * 2001-02-08 2009-01-16 UMICORE AG &amp; CO. KG THREE-LAYER THREE-DIMENSIONAL CATALYST GASAS IN TWO-LAYERS.
CN100457935C (en) * 2005-11-09 2009-02-04 贵研铂业股份有限公司 Palladium-base alloy for recovering platinum catalyst and recovering net
CN100362134C (en) * 2005-11-17 2008-01-16 常州市裕和金属材料有限公司 New process for separating metal fiber copper protective layer by catalytic ammonia leaching method
DE102011016044A1 (en) 2011-04-04 2012-10-04 Jens Kopatsch Preparing woven, knitted and/or crocheted metal-, precious metal- or alloy grids, comprises deforming or molding wire with non-circular peripheral shape via pulling, rolling, pressing or shape-changing radiation to produce shaped wire
CN103623815A (en) * 2013-07-24 2014-03-12 上海派特贵金属有限公司 Novel platinum-rhodium alloy knitted catalytic set gauze and preparation method thereof
EP3056267A1 (en) 2015-02-12 2016-08-17 Umicore AG & Co. KG Catalyst gauze and installation for the catalytic oxidation of ammunia
PL3680015T3 (en) 2019-01-14 2024-05-13 Heraeus Precious Metals Gmbh & Co. Kg Catalyst system and method for the catalytic combustion of ammonia to form nitrogen oxides in a medium pressure system
EP3680214B1 (en) 2019-01-14 2021-08-25 Heraeus Deutschland GmbH & Co KG Catalyst system and method for the catalytic combustion of ammonia to form nitrogen oxides in a medium pressure system
GB201907831D0 (en) 2019-06-03 2019-07-17 Johnson Matthey Plc Catalyst gauze
EP3779005A1 (en) 2019-08-16 2021-02-17 Umicore Ag & Co. Kg Knitting of precious metal nets with common material at the periphery, net from precious metal obtained thereby and a process using the precious metal net
EP3795728A1 (en) 2019-09-17 2021-03-24 Umicore Ag & Co. Kg Knitting of precious metal networks and a method using same
PL3812154T3 (en) * 2019-10-21 2023-08-14 Heraeus Deutschland GmbH & Co. KG Method for making a catalyst system for gas reactions
EP3900826A1 (en) 2020-04-22 2021-10-27 UMICORE AG & Co. KG Pure metal network for catalysing gas phase reactions
DE102020120927B4 (en) 2020-08-07 2024-01-25 Jens Kopatsch Process for producing networks with a tertiary structure for the catalytic conversion of fluids
US20230398531A1 (en) 2020-11-17 2023-12-14 Umicore Ag & Co. Kg Precious metal mesh for catalyzing gas-phase reactions
EP4001483A1 (en) 2020-11-17 2022-05-25 UMICORE AG & Co. KG Precious metal net for catalysing gas phase reactions, method of making same and its use in an ammonia oxiditation process
PL4215661T3 (en) * 2022-01-24 2024-08-12 Heraeus Precious Metals Gmbh & Co. Kg METHOD OF MANUFACTURING PRECIOUS METAL MESH ON FLAT KNITTING MACHINES
EP4310209A1 (en) * 2022-07-19 2024-01-24 Yara International ASA Method for recovering volatile pt or pd and system thereof
DE202023002903U1 (en) 2023-01-26 2024-12-23 Umicore Ag & Co. Kg Thread guide for a knitting machine for precious metal nets
EP4407083A1 (en) 2023-01-26 2024-07-31 Umicore AG & Co. KG Thread guide for a knitting machine for noble metal networks
DE102023129020A1 (en) 2023-10-23 2025-04-24 Umicore Ag & Co. Kg Use of precious metal nets for the oxidation of ammonia
DE202024101437U1 (en) 2024-03-22 2024-03-28 Umicore Ag & Co. Kg Knitted net packing for ammonia decomposition

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR771524A (en) * 1933-07-06 1934-10-10 Comptoir General Des Metaux Pr Improvement in platinum fabrics used as catalysts
US3881877A (en) * 1971-10-05 1975-05-06 Matthey Bishop Inc Catalyst supporting screen
DE2829035A1 (en) * 1978-07-01 1980-01-10 Heraeus Gmbh W C Silver or platinum metal catalyst in form of fibre felt - used for ammonia oxidn. and mfr. of hydrogen cyanide and formaldehyde
DE2855102A1 (en) * 1978-12-20 1980-07-17 Inst Nawozow Sztucznych W Pula Catalyst contg. platinum and palladium based layers - used in oxidn. of ammonia to form nitric oxide
GB2062486B (en) * 1979-11-08 1984-09-19 Johnson Matthey Co Ltd Catalytic gauze packs
AU550041B2 (en) * 1981-08-12 1986-02-27 Engelhard Corporation Recovering platinum and rhodium in nitric acid plant
EP0259966B1 (en) * 1986-08-06 1992-09-09 Engelhard Corporation Platinum coated filaments of platinum and rhodium; method of preparation and use in ammonia oxidation
ATE73010T1 (en) * 1988-10-12 1992-03-15 Johnson Matthey Plc METAL FABRIC.

Also Published As

Publication number Publication date
AU644725B2 (en) 1993-12-16
HU211812B (en) 1995-12-28
EP0504723B1 (en) 1993-08-25
NO920986D0 (en) 1992-03-13
KR920017714A (en) 1992-10-21
DE4206199C1 (en) 1992-11-12
MX9201108A (en) 1992-12-21
FI921093A7 (en) 1992-09-17
BG60171B2 (en) 1993-11-30
CN1035042C (en) 1997-06-04
PL166988B1 (en) 1995-07-31
FI921093L (en) 1992-09-17
YU24892A (en) 1994-06-10
CN1065027A (en) 1992-10-07
BR9200886A (en) 1992-11-17
ES2046903T3 (en) 1994-02-01
HUT63589A (en) 1993-09-28
AU1291792A (en) 1992-09-17
TR26402A (en) 1995-03-15
BG60171B1 (en) 1993-12-27
ATE93410T1 (en) 1993-09-15
IL101187A0 (en) 1992-11-15
CA2063041A1 (en) 1992-09-17
HU9200872D0 (en) 1992-05-28
NO920986L (en) 1992-09-17
PL293835A1 (en) 1993-03-08
NO300671B1 (en) 1997-07-07
DE59200009D1 (en) 1993-09-30
EP0504723A1 (en) 1992-09-23
JPH0564746A (en) 1993-03-19
FI921093A0 (en) 1992-03-13
DK0504723T3 (en) 1993-11-29
RU2017520C1 (en) 1994-08-15

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