BR112022010170A2 - Suporte de catalisador de bismuto de alumina, uso e método para seu preparo - Google Patents

Suporte de catalisador de bismuto de alumina, uso e método para seu preparo

Info

Publication number
BR112022010170A2
BR112022010170A2 BR112022010170A BR112022010170A BR112022010170A2 BR 112022010170 A2 BR112022010170 A2 BR 112022010170A2 BR 112022010170 A BR112022010170 A BR 112022010170A BR 112022010170 A BR112022010170 A BR 112022010170A BR 112022010170 A2 BR112022010170 A2 BR 112022010170A2
Authority
BR
Brazil
Prior art keywords
catalyst support
preparation
alumina
bismuth catalyst
bismuth
Prior art date
Application number
BR112022010170A
Other languages
English (en)
Portuguese (pt)
Inventor
Harmening Thomas
Schöneborn Marcos
Jäger Ann-Kathrin
Original Assignee
Sasol Germany Gmbh
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
Application filed by Sasol Germany Gmbh filed Critical Sasol Germany Gmbh
Publication of BR112022010170A2 publication Critical patent/BR112022010170A2/pt

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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • 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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/18—Arsenic, antimony or bismuth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/12—Silica and alumina
    • 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
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/644—Arsenic, antimony or bismuth
    • B01J23/6447—Bismuth
    • 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
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/613—10-100 m2/g
    • 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
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/615—100-500 m2/g
    • 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
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/633—Pore volume less than 0.5 ml/g
    • 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
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/635—0.5-1.0 ml/g
    • 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
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/638—Pore volume more than 1.0 ml/g
    • 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
    • B01J35/70—Catalysts, in general, characterised by their form or physical properties characterised by their crystalline properties, e.g. semi-crystalline
    • 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
    • B01J35/80—Catalysts, in general, characterised by their form or physical properties characterised by their amorphous structures
    • 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
    • B01J37/0027—Powdering
    • B01J37/0045—Drying a slurry, e.g. spray drying
    • 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
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • 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
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • B01J37/0203—Impregnation the impregnation liquid containing organic compounds
    • 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
    • B01J37/04—Mixing
    • 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
    • B01J37/08—Heat treatment
    • B01J37/082—Decomposition and pyrolysis
    • B01J37/088—Decomposition of a metal salt
    • 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
    • B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
    • B01J6/001—Calcining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1023—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2092—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2096—Bismuth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/30—Silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • 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
    • B01J2235/00—Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
    • B01J2235/15—X-ray diffraction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BR112022010170A 2019-11-29 2020-11-30 Suporte de catalisador de bismuto de alumina, uso e método para seu preparo BR112022010170A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19212712.4A EP3827897A1 (en) 2019-11-29 2019-11-29 Alumina bismuth catalyst support and method for its production
PCT/EP2020/083968 WO2021105510A1 (en) 2019-11-29 2020-11-30 Alumina bismuth catalyst support and method for its production

Publications (1)

Publication Number Publication Date
BR112022010170A2 true BR112022010170A2 (pt) 2022-08-09

Family

ID=68847939

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022010170A BR112022010170A2 (pt) 2019-11-29 2020-11-30 Suporte de catalisador de bismuto de alumina, uso e método para seu preparo

Country Status (9)

Country Link
US (1) US20230001384A1 (https=)
EP (2) EP3827897A1 (https=)
JP (2) JP2023508260A (https=)
KR (1) KR20220127232A (https=)
CN (1) CN114761124B (https=)
BR (1) BR112022010170A2 (https=)
CA (1) CA3159173A1 (https=)
WO (1) WO2021105510A1 (https=)
ZA (1) ZA202205931B (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113856678A (zh) * 2021-11-01 2021-12-31 中国科学院城市环境研究所 一种氧化催化剂及其制备方法和用途

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423139A1 (de) * 1994-07-01 1996-01-04 Hoechst Ag Härtung von kataphoretischen Tauchlacken mit Wismutkatalysatoren
US5849256A (en) * 1996-04-26 1998-12-15 Engelhard Corporation Method for oxidizing carbon monoxide in a gas stream containing oxidizable sulphur compounds
JP2000515806A (ja) * 1996-07-26 2000-11-28 シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ 接触灰化法及び前記方法に有用な触媒組成物
US6667270B2 (en) * 2002-05-22 2003-12-23 Shell Oil Company Bismuth-and phosphorus-containing catalyst support, reforming catalysts made from same, method of making and naphtha reforming process
US7276540B2 (en) * 2002-11-11 2007-10-02 Conocophillips Company Supports for high surface area catalysts
DE102004020259A1 (de) * 2004-04-26 2005-11-10 Hte Ag The High Throughput Experimentation Company Oxidationskatalysator für die simultane Entfernung von Kohlenmonoxid und Kohlenwasserstoffen aus sauerstoffreichen Abgasen und Verfahren zu seiner Herstellung
US7611680B2 (en) 2004-10-28 2009-11-03 Nanostellar, Inc. Platinum-bismuth catalysts for treating engine exhaust
CN108025256B (zh) * 2015-10-14 2021-11-30 庄信万丰股份有限公司 用于柴油机废气的氧化催化剂
CN106732634B (zh) * 2016-11-29 2019-04-19 万华化学集团股份有限公司 一种用于生产不饱和醛(酸)的催化剂及制备方法
CN107812519B (zh) * 2017-11-09 2020-08-07 南京大学（苏州）高新技术研究院 一种粉末催化材料、含SiO2气凝胶复合多孔纳米催化材料的制备及应用

Also Published As

Publication number Publication date
KR20220127232A (ko) 2022-09-19
US20230001384A1 (en) 2023-01-05
EP3827897A1 (en) 2021-06-02
ZA202205931B (en) 2023-04-26
CA3159173A1 (en) 2022-05-20
JP2023508260A (ja) 2023-03-02
WO2021105510A1 (en) 2021-06-03
JP2025102977A (ja) 2025-07-08
CN114761124A (zh) 2022-07-15
EP4065271A1 (en) 2022-10-05
CN114761124B (zh) 2024-09-06

Similar Documents

Publication Publication Date Title
NI201700073A (es) Benzamidas sustituidas con 1,3-tiazol-2-ilo
BR112013004220A2 (pt) fenilamidinas tendo uma atividade fungicida alta e seu uso.
BRPI0814299B8 (pt) preparação sólida compreendendo alogliptina e cloridreto de metformina, uso de uma preparação sólida, e, métodos para estabilizar um composto em uma preparação sólida, e para produzir uma preparação sólida
BR112016007171A2 (pt) mistura pesticida, e, método de controle de insetos
UY32764A (es) Preparaciones insulinicas que comprenden metionina
BR112016003317A2 (pt) vacina para adenovírus aviário
BR112023018165A2 (pt) Composições que compreendem um polipeptídeo variante e usos dos mesmos
BR112022010170A2 (pt) Suporte de catalisador de bismuto de alumina, uso e método para seu preparo
NI201500118A (es) Imidazopiridazinas sustituidas
BR112021020681A2 (pt) Agonista de molécula pequena de fxr e método de preparação para o mesmo e uso do mesmo
BR112018016729A2 (pt) novo composto de tiofeno substituído nas posições 2,3,5, utilizado como inibidor de proteína quinase
CO2021010786A2 (es) Toxinas apxia, apxiia y apxiiia inactivadas
DOP2022000035A (es) Composiciones que comprenden tigolaner para el control de parásitos
CR20160235A (es) Tienopirimidinas como inhibidores mknk1 y mknk2
BR112017015653A2 (pt) formulação em pó compreendendo repelentes de inseto
MX2021013888A (es) Composiciones que comprenden efedrina o una sal de efedrina y metodos de fabricacion y uso de las mismas.
BR112022010041A2 (pt) Tiofeno carboxamidas substituídas e derivados das mesmas
AR092755A1 (es) Composicion en base a taninos vegetales, libre de formaldehido y de solventes organicos de bajo punto de ebullicion, para la produccion de un material expandido, y metodo relacionado
AR106221A1 (es) Una composición de toxicidad baja
BR112018075531A2 (pt) derivados de polissacarídeos insaturados, método de preparação dos derivados de polissacarídeos e uso dos mesmos
AR112841A1 (es) Composiciones y procedimientos para mejorar el uso de nitrógeno en un rumiante
CL2013000332A1 (es) Matriz impregnable de origen vegetal, animal o sintetica que contiene un compuesto antimicrobiano distribuido homogeneamente; procedimiento para impregnar un compuesto en una matriz; uso de dicha matriz para preparar soportes solidos de uso cosmetico, farmaceutico, medico o veterinario.
BR112019006696A2 (pt) composições de cristais de zeólita de aluminossilicato e processos para preparar as referidas composições
BR112021026616A2 (pt) Composições de exenatidas para administração pulmonar e uso das mesmas
BR112018073429A2 (pt) composição na forma de uma emulsão de óleo em água, método de preparação e uso de amido

Legal Events

Date Code Title Description
B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]