TW200613053A - Multizone catalyst for preparing phthalic anhydride - Google Patents

Multizone catalyst for preparing phthalic anhydride

Info

Publication number
TW200613053A
TW200613053A TW094117557A TW94117557A TW200613053A TW 200613053 A TW200613053 A TW 200613053A TW 094117557 A TW094117557 A TW 094117557A TW 94117557 A TW94117557 A TW 94117557A TW 200613053 A TW200613053 A TW 200613053A
Authority
TW
Taiwan
Prior art keywords
catalyst
active composition
catalyst zone
composition content
zone
Prior art date
Application number
TW094117557A
Other languages
Chinese (zh)
Other versions
TWI320722B (en
Inventor
Christian Guckel
Markus Niedermeier
Marvin Estenfelder
Original Assignee
Sued Chemie Ag
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
Priority claimed from DE102004026472A external-priority patent/DE102004026472A1/en
Application filed by Sued Chemie Ag filed Critical Sued Chemie Ag
Publication of TW200613053A publication Critical patent/TW200613053A/en
Application granted granted Critical
Publication of TWI320722B publication Critical patent/TWI320722B/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
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0215—Coating
    • B01J37/0221—Coating of particles
    • 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
    • B01J23/002—Mixed oxides other than spinels, e.g. perovskite
    • 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
    • B01J23/20—Vanadium, niobium or tantalum
    • B01J23/22—Vanadium
    • 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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14—Phosphorus; Compounds thereof
    • B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J27/195—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
    • B01J27/198—Vanadium
    • 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
    • B01J37/0215—Coating
    • B01J37/0219—Coating the coating containing organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/31—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting
    • C07C51/313—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting with molecular oxygen
    • 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
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/063—Titanium; Oxides or hydroxides thereof
    • 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
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Furan Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

The present invention relates to a catalyst for preparing phthalic anhydride by gas phase oxidation of o-xylene and/or naphthalene, comprising at least three catalyst zones which have different compositions and, from the gas inlet side toward the gas outlet side, are referred to as first, second and third catalyst zone, the catalyst zones having in each case an active composition comprising TiO2, and the active composition content decreasing from the first catalyst zone disposed toward the gas inlet side to the third catalyst zone disposed toward the gas outlet side, with the proviso that (a) the first catalyst zone has an active composition content between about 7 and 12% by weight, (b) the second catalyst zone has an active composition content in the range between 6 and 11% by weight, the active composition content of the second catalyst zone being less than or equal to the active composition content of the first catalyst zone, and (c) the third catalyst zone has an active composition content in the range between 5 and 10% by weight, the active composition content of the third catalyst zone being less than or equal to the active composition content of the second catalyst zone. Also described is a preferred process for preparing such a catalyst and the preferred use of the titanium dioxide used in accordance with the invention.
TW94117557A 2004-05-29 2005-05-27 Multizone catalyst for preparing phthalic anhydride TWI320722B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004026472A DE102004026472A1 (en) 2004-05-29 2004-05-29 Multi-layer catalyst for the production of phthalic anhydride

Publications (2)

Publication Number Publication Date
TW200613053A true TW200613053A (en) 2006-05-01
TWI320722B TWI320722B (en) 2010-02-21

Family

ID=37600968

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94117557A TWI320722B (en) 2004-05-29 2005-05-27 Multizone catalyst for preparing phthalic anhydride

Country Status (3)

Country Link
CN (1) CN100496740C (en)
AR (1) AR051355A1 (en)
TW (1) TWI320722B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI763398B (en) * 2021-03-29 2022-05-01 日商旭化成股份有限公司 Catalyst for producing carboxylate, method for producing carboxylate, and method for producing catalyst for producing carboxylate

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2106796C3 (en) * 1971-02-12 1981-09-24 Wacker-Chemie GmbH, 8000 München Process for the production of fixed bed catalysts with a coating of vanadium pentoxide and titanium dioxide
US3926846A (en) * 1972-08-25 1975-12-16 Nippon Catalytic Chem Ind Catalysts for the preparation of phthalic anhydride
JPS63253080A (en) * 1987-04-10 1988-10-20 Nippon Steel Chem Co Ltd Production of phthalic anhydride
CN1066707C (en) * 1994-04-05 2001-06-06 株式会社日本触媒 Method for production of pyromellitic anhydride
CN1047959C (en) * 1994-10-25 2000-01-05 中国石油化工总公司 Supported catalyst for preparing phthalic anhydride
DE19707943C2 (en) * 1997-02-27 1999-07-08 Basf Ag Process for the preparation of phthalic anhydride and catalyst therefor
DE19823275A1 (en) * 1998-05-26 1999-12-02 Basf Ag Process for the preparation of phthalic anhydride by catalytic gas phase oxidation of x-xylene - / - naphthalene mixtures
DE10040827A1 (en) * 2000-08-21 2002-03-07 Basf Ag Process for the preparation of phthalic anhydride
DE10206989A1 (en) * 2002-02-19 2003-08-21 Basf Ag Production of phthalic anhydride involves gas-phase oxidation of o-xylene or naphthalene in a tubular reactor containing three or more different catalyst beds with controlled hot-spot temperatures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI763398B (en) * 2021-03-29 2022-05-01 日商旭化成股份有限公司 Catalyst for producing carboxylate, method for producing carboxylate, and method for producing catalyst for producing carboxylate

Also Published As

Publication number Publication date
AR051355A1 (en) 2007-01-10
CN100496740C (en) 2009-06-10
TWI320722B (en) 2010-02-21
CN1960805A (en) 2007-05-09

Similar Documents

Publication Publication Date Title
ZA200708804B (en) Multi-layered catalyst for producing phthalic anhydride
TW200642752A (en) Use of a multizone catalyst for the preparation of phthalic anhydride
ZA200510368B (en) Method for producing phthalic anhydride
TW200626232A (en) Use of titanium dioxide mixtures for producing catalysts
Zhao et al. Infrared characterization of nitric oxide bonding to bovine heart cytochrome c oxidase and myoglobin
IL183222A0 (en) Method for producing a multi-layer catalyst for obtaining phthalic anhydride
HUP0203505A2 (en) 2'-substituted 1,1'-biphenyl-2-carbonamides, and pharmaceutical compositions containing said compounds
DE59703523D1 (en) USE OF A SHELL CATALYST FOR THE PRODUCTION OF ACETIC ACID BY GAS PHASE OXIDATION OF UNSATURATED C 4-HYDROCARBONS
DK1613175T3 (en) Protein powder composition
DE502007006673D1 (en) PREPARATION OF PHTHALIC ACID ANHYDRIDE BY GAS PHASE OXIDATION OF O-XYLOL
BRPI0307808A2 (en) lipase inhibiting composition
TW200613053A (en) Multizone catalyst for preparing phthalic anhydride
Hamidi et al. The biological effects of vanadyl curcumin and vanadyl diacetylcurcumin complexes: the effect on structure, function and oxidative stability of the peroxidase enzyme, antibacterial activity and cytotoxic effect
WO2010001064A3 (en) Fused grains of oxides comprising al, ti and mg and ceramic products comprising such grains
CY1109545T1 (en) COMPOSITION OF (R) AND (S) -AMINOCARNITINE AND ITS DERIVATIVES FROM D- AND L-ASPARIC ACID
JP2002535136A5 (en)
Yim et al. Preparation of Metallocene Catalysts Supported on Aminosilane and Ionic Liquids Functionalized Silica and its Ethylene Polymerization
AR037112A1 (en) OXIDIC MASS APPROPRIATE AS INTERMEDIATE CATALYST PRODUCT AND PROCEDURE FOR OBTAINING
TW200603892A (en) Catalyst and process for preparing phthalic anhydride
Hogue Changing the rules for NAFTA disputes
CA3241129A1 (en) Tetrahydropyridazines, compositions comprising them and uses thereof
WO2014013397A3 (en) Catalyst for preparing carboxylic acids and/or carboxylic anhydrides
ATE531766T1 (en) HIGH PURITY TEXAPHYRIN METAL COMPLEXES
Van Biema Tick-tock, tick-tock...
Holden A hard road to mental health

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees