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DE1642921A1 - Oxidation catalyst containing vanadium and titanium - Google Patents

Oxidation catalyst containing vanadium and titanium

Info

Publication number
DE1642921A1
DE1642921A1 DE1967B0090594 DEB0090594A DE1642921A1 DE 1642921 A1 DE1642921 A1 DE 1642921A1 DE 1967B0090594 DE1967B0090594 DE 1967B0090594 DE B0090594 A DEB0090594 A DE B0090594A DE 1642921 A1 DE1642921 A1 DE 1642921A1
Authority
DE
Germany
Prior art keywords
titanium
catalyst
vanadium
vanadium pentoxide
titanium dioxide
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
DE1967B0090594
Other languages
German (de)
Other versions
DE1642921B2 (en
DE1642921C3 (en
Inventor
Wilhelm Dr Friedrichsen
Otto Dr Goehre
Guenter Dr-Ing Poehler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DE1967B0090594 priority Critical patent/DE1642921C3/en
Priority to BE708692D priority patent/BE708692A/xx
Priority to ES348752A priority patent/ES348752A2/en
Priority to FR134698A priority patent/FR94476E/en
Priority to GB41768A priority patent/GB1203321A/en
Priority to SE11468A priority patent/SE345441B/xx
Priority to AT8768A priority patent/AT291204B/en
Priority to NL6800134A priority patent/NL159597B/en
Publication of DE1642921A1 publication Critical patent/DE1642921A1/en
Publication of DE1642921B2 publication Critical patent/DE1642921B2/en
Application granted granted Critical
Publication of DE1642921C3 publication Critical patent/DE1642921C3/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16Catalysts 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
    • B01J23/20Vanadium, niobium or tantalum
    • B01J23/22Vanadium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/0215Coating
    • B01J37/0221Coating of particles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Description

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IADIS OHl ANIIilN- ahsODMWSa^M 1 6 A 2 9 2 1IADIS OHl ANIIilN- ahsODMWSa ^ M 1 6 A 2 9 2 1

Unser Zeichens Ο,Ζ. 24 656 Wbg/Bb I/udwigshafen am Rhein, den 3.Jan.1967Our sign Ο, Ζ. 24 656 Wbg / Bb I / udwigshafen am Rhein, January 3rd, 1967

Vanadium- und Titan-haltiger OxydationakatalysatorOxidation catalyst containing vanadium and titanium

3. Zusatz zu Patent . ..-.. ... (Patentanmeldung B 81 979 IVa/i2g) und 2. Zusatz zu Patent . ».. ... (Patentanmeldung B 88 571 IVa/i2g), (1. Zusatz zu Patent . ... ... (Patentanmeldung B 81 979 IVa/12 g) ). ■3. Addendum to patent. ..- .. ... (patent application B 81 979 IVa / i2g) and 2nd addition to patent. ».. ... (patent application B 88 571 IVa / i2g), (1st addition to patent. ... ... (patent application B 81 979 IVa / 12 g)). ■

Gegenstand des Hauptpatents ist ein Vanadium- und Titan-haltiger Katalysator fjir die Oxydation aromatischer und ungesättigter aliphatischer Kohlenwasserstoffe zu Carbonsäuren, der gekennzeichnet ist durch einen inerten, nicht porösen Träger, der in einer Schichtdicke von 0,02 "bis 2 mm, insbesondere 0,05 bis 1 mm, mit einer porösen Masse beschichtet ist, die 1 bis 15 Gew.% Vanadinpentoxyd und 85 bis 99.Gew.# Titandioxyd enthält, wobei der Katalysator einen Gehalt an Vanadinpentoxyd von weniger als 3 Gew.$ aufweist.The subject of the main patent is a one containing vanadium and titanium Catalyst for the oxidation of aromatic and unsaturated aliphatic hydrocarbons to carboxylic acids, which is characterized is through an inert, non-porous carrier, which is in a layer thickness of 0.02 "to 2 mm, in particular 0.05 to 1 mm, is coated with a porous mass containing 1 to 15% by weight of vanadium pentoxide and 85 to 99 wt. # contains titanium dioxide, the Catalyst has a vanadium pentoxide content of less than 3 By weight.

Gegenstand des 1. Zusatzpatents ist ein Katalysator nach dem Hauptpatent, der gekennzeichnet ist durch einen Träger, der vor der Beschichtung mit.der Vanadinpentoxyd und Titandioxyd enthaltenden Masse mit einem Oxyd der Metalle Vanadium, Molybdän, Wolfram, Chrom, Titan und bzw» oder Eisen grundiert worden ist.The subject of the 1st additional patent is a catalyst according to the main patent, which is characterized by a carrier that is in front of the coating mit.der vanadium pentoxide and titanium dioxide containing Mass with an oxide of the metals vanadium, molybdenum, Tungsten, chrome, titanium and or »or iron has been primed.

-2--2-

513/661 ■ 1 Q9 8.'217 1 8 82 513/66 1 ■ 1 Q9 8th'217 1 8 82

- 2 - O.Z. 24 656- 2 - O.Z. 24 656

Es wurde nun gefunden, daß ein Katalysator nach dem Hauptpatent und gegebenenfalls nach dem 1. Zusatzpatent eine., erhöhte Beschichtungsfestigkeit aufweist, bei dem die Beschichtung mit der Yanadinpentoxyd und Titandioxyd enthaltenden Masse durch Aufbringen in gelöster bzw. suspendierter Form auf einen auf eine Temperatur von 160 bis 50O0C, insbesondere 270 bis 50O0C, erwärmten Träger erfolgt ist.It has now been found that a catalyst according to the main patent and optionally according to the 1st additional patent has an increased coating strength in which the coating with the mass containing yanadine pentoxide and titanium dioxide is applied in dissolved or suspended form to a temperature of 160 to 50O 0 C, in particular 270 to 50O 0 C, heated carrier has taken place.

Der neue Katalysator weist eine hohe Beschichtungsfestigkeit auf. Während bislang vielfach beim Transport und beim Einfüllen in den Oxydationsreaktor Teile der Beschichtung abbröckelten und somit ein besonders vorsichtiges Handhaben erforderlich war, zeigt der neue Katalysator nur minimalen Abrieb. Ein Abbröckeln der Beschichtung wird nicht mehr beobachtet. Bezüglich der Verwendbarkeit dea Katalysators, der geeigneten Katalysatorträger, gegebenenfalls der Grundierung oder Vorbehandlung der Träger, der Katalysetorbeschichtungsmaase und der Durchführung der Oxydationsreaktionen unter Verwendung des neuen Katalysators besteht kein Unterschied zum Katalysator des Haupt- und 1. Zusatzpatents.The new catalyst has a high coating strength. While so far often during transport and when filling into the Oxidation reactor parts of the coating crumbled and thus Particularly careful handling was required, the new catalyst shows only minimal abrasion. The coating is flaking off is no longer observed. With regard to the usability of the catalyst, the suitable catalyst carrier, if necessary priming or pretreatment of supports, catalyst coating and carrying out oxidation reactions using the new catalyst there is no difference to the catalyst of the main and 1st additional patent.

Die Beschichtung erfolgt derart, daß der gegebenenfalls grundierte Träger auf eine Temperatur zwischen 160 und 5000C, vorzugsweise 270 bis 5000C, insbesondere 280 bis 45O0C, erhitzt wird. Man arbeitet vorteilhaft in einer beheizbaren Dragiertrommel, einem Drehrohrofen oder auf einer vibrierenden Unterlage.The coating is carried out such that the optionally primed backing to a temperature of 160-500 0 C, preferably 270-500 0 C, in particular 280, heated to 45O 0 C. It is advantageous to work in a heatable coating drum, a rotary kiln or on a vibrating base.

-3--3-

10 9 8'2 IV 1 8 8 210 9 8'2 IV 1 8 8 2

- 3■'- O.Z. 24 656- 3 ■ '- O.Z. 24 656

Die als Katalysatorbeschichtung verwendete Masse, die in. trockenem Zustand 1 bis 15 Gew>$ Vanadinpentoxyd. und 85 bis 99 Gew. fo Titandioxyd enthalten soll, wird in gelöster bzw. suspendierter Form auf den Träger aufgebracht. Als Lösungs- bzw. Suspensionsmittel wird Wasser oder ein organisches Lösungsmittel..;, wie formamid oder Alkohol, verwendet. Titandioxyd, liegt hierbei im allgemeinen in suspendierter Form, Vanadinpentoxyd bzw. eine Vanadinverbindung, die beim Erhitzen in Vanadinpentoxyd übergeführt wird, im allgemeinen in gelöster Form vor. Im allgemeinen arbeitet man mit einem Brei, der honigartige Konsistenz aufweist» Bei der neuen Beschichtungsweise verdampft das Wasser bzw. das Lösungsmittel praktisch momentan, sobald die Masse mit dem Träger in Berührung kommt. 'The mass used as a catalyst coating, which in the dry state is 1 to 15% by weight of vanadium pentoxide. and should contain 85 to 99 wt. fo titanium dioxide, is applied to the carrier in dissolved or suspended form. The solvent or suspension medium used is water or an organic solvent, such as formamide or alcohol. Titanium dioxide is generally in suspended form, while vanadium pentoxide or a vanadium compound which is converted into vanadium pentoxide on heating is generally in dissolved form. In general, you work with a paste that has a honey-like consistency. With the new coating method, the water or the solvent evaporates almost instantaneously as soon as the mass comes into contact with the carrier. '

Der fertige Katalysator soll 0,05 bis 3, vorzugsweise 0,1 bis 2, insbesondere 0,05 bis 1 G-ew.$ Vanadinpentoxyd enthalten.The finished catalyst should be 0.05 to 3, preferably 0.1 to 2, in particular 0.05 to 1% by weight of vanadium pentoxide.

Die Katalysatormasse kann neben Vanadin und Titan noch geringe Mengen, beispielsweise 0,1 bis 5 Gew.$, an Verbindungen anderer Elemente, wie Kupfer, Silber, Lithium, Niob, Arsen, Antimon, Phosphor, Chrom, Molybdän, Wolfram, Mangan, Eisen, Mckel, Kobalt und Aluminium enthalten. ■In addition to vanadium and titanium, the catalyst composition can also contain small amounts, for example 0.1 to 5% by weight, of other compounds Elements such as copper, silver, lithium, niobium, arsenic, antimony, phosphorus, chromium, molybdenum, tungsten, manganese, iron, mckel, cobalt and aluminum included. ■

Beispiel 1example 1

790 g Vanadyloxalat werden in 1 670 g Formamid und 10 650 g *790 g vanadyl oxalate are mixed in 1 670 g formamide and 10 650 g *

Wasser gelöst und mit 5 900 g feinverteiltem Anatas vermischt.Dissolved water and mixed with 5,900 g of finely divided anatase.

V - -4-V - -4-

1 0 9 8-2 1 /18821 0 9 8-2 1/1882

- 4 - O.Z. 24 656- 4 - O.Z. 24 656

75 kg S tea tit kugeln mit einem Durchmesser von 6 mm werden in einer Dragiertrommel auf 35O0C erhitzt. Mit einer Sprühvorrichtung werden die heißen Kugeln mit der obengenannten Mischung besprüht. Die Trommel wird von außen beheizt, so daß beim Besprühen kein Temperaturabfall eintritt. Die gesamte Flüssigkeit wird im Moment der Berührung mit der heißen Kugel verdampft. Die Kugeln besitzen eine aktive Masse von 6,14 i<>. Der fertige Katalysator enthält 0,48 fo Yanadinpentoxyd.75 kg S tea tit balls with a diameter of 6 mm are heated in a coating drum at 35O 0 C. The hot balls are sprayed with the above mixture using a spray device. The drum is heated from the outside so that no temperature drop occurs during spraying. All the liquid is evaporated at the moment of contact with the hot ball. The spheres have an active mass of 6.14 i <>. The finished catalyst contains 0.48 fo Yanadinpentoxyd.

fc Läßt man 100 g dieses Katalysators durch ein 3 m langes stehendes Rohr mit einem Durchmesser von 0,25 m fallen, so verliert der Katalysator nur 0,25 $ der aktiven Masse.fc Lets 100 g of this catalyst through a 3 m long standing If a pipe with a diameter of 0.25 m falls, the catalyst only loses $ 0.25 of the active material.

Werden dagegen die Kugeln bei Raumtemperatur in der Dragiertrommel mit der aktiven Masse beschichtet und anschließend bei 2000C getrocknet, so ergibt sich im Fälltest ein Verlust an aktiver Masse durch Abbröckeln von 12. ^.In contrast, if the balls coated at room temperature in the coating drum with the active material and then dried at 200 0 C, a loss of active mass is obtained in Fälltest by crumbling of 12 ^.

Selbstverständlich kann anstelle von Titandioxyd auch eine Lö- w sung einer Titanverbindung verwendet werden, die beim Erhitzen in Titandioxyd übergeführt wird, z.B. alkoholische Lösungen von Titanalkoholaten oder Titantetrachlorid.Of course, a titanium compound may be used instead of titanium dioxide, a solu- w solution are used, which is converted upon heating in titanium dioxide, for example, alcoholic solutions of titanium alcoholates or titanium tetrachloride.

Die unterschiedliche Beschichtungsfestigkeit von bei verschiedenen Temperaturen beschichteten Katalysatoren ist aus folgender Tabelle ersichtlich:The different coating strength of at different Temperatures coated catalysts can be seen from the following table:

—5— 10 9 8-21/1882-5- 10 9 8-21 / 1882

Temperatur der Kugel während des BesprühensTemperature of the sphere during spraying

O.Z. 24 656O.Z. 24 656

Verlust an aktiver Masse im FalltestLoss of active mass in the drop test

17O0G 2200G 25O0G 2700C 3150G 35O0C17O 0 G 220 0 G 25O 0 G 270 0 C 315 0 G 35O 0 C

8.4 5 5,8 58.4 5 5.8 5

1.5 5 0,34 0,251.5 5 0.34 0.25

Bei 4100C werden stündlich 41 g 98%iges o-Xylol mit 1 100 1 luft über 400 g des "bei 35O0C beschichteten Katalysators geleitet. Die Gewichtsaus "beute an Phthalsäureanhydrid "beträgt in den ersten 6 Stunden 102 $, nach 7 Tagen "besitzt der Katalysator seine konstante Aktivität. Die Gewichtsausbeute beträgt dann 114,8 #.At 410 0 C per hour, 41 g of 98 are% -pure o-xylene with 1100 1 air over 400 g of "at 35O 0 C coated catalyst passed. The Gewichtsaus" yield of phthalic anhydride "is in the first 6 hours 102 $, after 7 Days "the catalyst has its constant activity. The weight yield is then 114.8 #.

-6--6-

109821/1882109821/1882

Claims (1)

- 6 - _^~~r~' O.Z. 24 656- 6 - _ ^ ~~ r ~ 'O.Z. 24 656 l2£l2 pounds PatentanspruchClaim Vanadium- und Titan-haltiger Katalysator für die Oxydation aromatischer und ungesättigter aliphatischer Kohlenwasserstoffe zu Carbonsäuren, bestehend aus einem inerten, nicht porösen Träger, der in einer Schichtdicke von 0,02 bis 2 mm, insbesondere von 0,05 bis 1 mm, mit einer porösen Masse beschichtet ist, die 1 bis 15 Gew.# Vanadinpentoxyd und 85 bis 99 Gew.$ Titandioxyd enthält, wobei der Katalysator einen Gehalt an Vanadinpentoxyd von weniger als 3 Gew.$ aufweist, wobei gegebenenfalls der Träger vor der Beschichtung mit der Vanadinpentoxyd und Titandioxyd enthaltenden Masse mit einem Oxyd der Metalle Vanadium, Molybdän, Wolfram, Chrom, Titan und bzw. oder Eisen grundiert worden ist,Vanadium and titanium containing catalyst for the oxidation of aromatic substances and unsaturated aliphatic hydrocarbons to carboxylic acids, consisting of an inert, non-porous carrier, which is coated in a layer thickness of 0.02 to 2 mm, in particular 0.05 to 1 mm, with a porous mass that 1 up to 15% by weight of vanadium pentoxide and 85 to 99% by weight of titanium dioxide Contains, wherein the catalyst has a content of vanadium pentoxide of less than 3 wt. $, where optionally the carrier before coating with the compound containing vanadium pentoxide and titanium dioxide with an oxide of the metals vanadium, molybdenum, Tungsten, chrome, titanium and / or iron has been primed, nach Patent (Patentanmeldung B 81 979 IVa/i2g) undaccording to patent (patent application B 81 979 IVa / i2g) and Patent . ...... (Patentanmeldung B 88 571 IVa/12 g), dadurch gekennzeichnet t daß die Beschichtung mit der Vanadinpentoxyd und Titandioxyd enthaltenden Masse durch Aufbringen in gelöster bzw. suspendierter Form auf einen auf eine Temperatur von 160 bis 500°C, insbesondere 270 bis 5000C, erwärmten Träger erfolgt ist.Patent. ...... (Patent Application B 88 571 IVa / 12 g), characterized in t that the coating with the vanadium pentoxide and titanium dioxide-containing material by applying in dissolved or suspended form to a region at a temperature of 160 to 500 ° C in particular 270 to 500 0 C, heated carrier has taken place. BADISCHE ANILIN- & SODA-FABRIK AGBADISCHE ANILIN- & SODA-FABRIK AG 109821/1882109821/1882
DE1967B0090594 1965-05-18 1967-01-04 Supported catalyst containing vanadium and titanium Expired DE1642921C3 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE1967B0090594 DE1642921C3 (en) 1965-05-18 1967-01-04 Supported catalyst containing vanadium and titanium
BE708692D BE708692A (en) 1965-05-18 1967-12-28
ES348752A ES348752A2 (en) 1965-05-18 1967-12-29 Oxidation catalysts containing vanadium pentoxide and titanium dioxide
GB41768A GB1203321A (en) 1965-05-18 1968-01-03 Oxidation catalysts containing vanadium pentoxide and titanium dioxide
FR134698A FR94476E (en) 1965-05-18 1968-01-03 Vanadium and titanium oxidation catalyst.
SE11468A SE345441B (en) 1965-05-18 1968-01-04
AT8768A AT291204B (en) 1965-05-18 1968-01-04 Process for the production of vanadium pentoxide and titanium dioxide containing supported catalysts in the active material
NL6800134A NL159597B (en) 1965-05-18 1968-01-04 PROCESS FOR PREPARING A VANADIUM AND TITAN CONTAINING OXIDATION CATALYST AND MOLDED CATALYST PREPARED ACCORDING TO THIS PROCESS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEB0081979 1965-05-18
DE1967B0090594 DE1642921C3 (en) 1965-05-18 1967-01-04 Supported catalyst containing vanadium and titanium

Publications (3)

Publication Number Publication Date
DE1642921A1 true DE1642921A1 (en) 1971-05-19
DE1642921B2 DE1642921B2 (en) 1978-03-02
DE1642921C3 DE1642921C3 (en) 1978-11-23

Family

ID=6985379

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1967B0090594 Expired DE1642921C3 (en) 1965-05-18 1967-01-04 Supported catalyst containing vanadium and titanium

Country Status (8)

Country Link
AT (1) AT291204B (en)
BE (1) BE708692A (en)
DE (1) DE1642921C3 (en)
ES (1) ES348752A2 (en)
FR (1) FR94476E (en)
GB (1) GB1203321A (en)
NL (1) NL159597B (en)
SE (1) SE345441B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0714700A2 (en) 1994-11-29 1996-06-05 Basf Aktiengesellschaft Process of manufacturing of a catalyst consisting of a carrier and a catalytic active mass of oxide deposited on the surface of the carrier
EP1043068A3 (en) * 1999-03-30 2001-09-05 XCELLSIS GmbH Process for preparing a catalyst
US7196217B2 (en) 2003-08-06 2007-03-27 Basf Aktiengesellschaft Operation of a continuous heterogeneously catalyzed gas phase partial oxidation of at least one organic compound
DE102007010422A1 (en) 2007-03-01 2008-09-04 Basf Se Preparation of a catalyst, useful in the heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid, comprises attaching one of the active mass to the surface of the carrier body with the help of a binding agent
US7927555B2 (en) 2005-03-08 2011-04-19 Basf Aktiengesellschaft Charging of a reactor
US8461074B2 (en) 2008-04-09 2013-06-11 Basf Se Coated catalysts comprising a multimetal oxide comprising molybdenum
WO2014086641A1 (en) 2012-12-06 2014-06-12 Basf Se Catalyst and method for oxidative dehydrogenation of n‑butenes to give butadiene
WO2014086768A1 (en) 2012-12-06 2014-06-12 Basf Se Method for oxidative dehydrogenation of n-butenes to butadiene
WO2015004042A2 (en) 2013-07-10 2015-01-15 Basf Se Method for the oxidative dehydrogenation of n-butenes to butadiene
US9399606B2 (en) 2012-12-06 2016-07-26 Basf Se Catalyst and process for the oxidative dehydrogenation of N-butenes to butadiene
WO2016177764A1 (en) 2015-05-06 2016-11-10 Basf Se Method for producing catalysts containing chrome, for the oxidative dehydrogenation of n-butenes to form butadiene while avoiding cr(vi) intermediates
US10144681B2 (en) 2013-01-15 2018-12-04 Basf Se Process for the oxidative dehydrogenation of N-butenes to butadiene

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1769998B2 (en) * 1968-08-20 1977-01-27 Basf Ag, 6700 Ludwigshafen PROCESS FOR MANUFACTURING PHTHALIC ANHYDRIDE
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
US5169820A (en) * 1990-03-16 1992-12-08 Nippon Shokubai Kagaku Kogyo Co., Ltd. Catalyst for producing phthalic anhydride
US5235071A (en) * 1991-07-10 1993-08-10 Nippon Shokubai Co., Ltd. Catalyst for producing phthalic anhydride and process by using the same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0714700A2 (en) 1994-11-29 1996-06-05 Basf Aktiengesellschaft Process of manufacturing of a catalyst consisting of a carrier and a catalytic active mass of oxide deposited on the surface of the carrier
EP1043068A3 (en) * 1999-03-30 2001-09-05 XCELLSIS GmbH Process for preparing a catalyst
US7196217B2 (en) 2003-08-06 2007-03-27 Basf Aktiengesellschaft Operation of a continuous heterogeneously catalyzed gas phase partial oxidation of at least one organic compound
US7927555B2 (en) 2005-03-08 2011-04-19 Basf Aktiengesellschaft Charging of a reactor
DE102007010422A1 (en) 2007-03-01 2008-09-04 Basf Se Preparation of a catalyst, useful in the heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid, comprises attaching one of the active mass to the surface of the carrier body with the help of a binding agent
US8461074B2 (en) 2008-04-09 2013-06-11 Basf Se Coated catalysts comprising a multimetal oxide comprising molybdenum
WO2014086641A1 (en) 2012-12-06 2014-06-12 Basf Se Catalyst and method for oxidative dehydrogenation of n‑butenes to give butadiene
WO2014086768A1 (en) 2012-12-06 2014-06-12 Basf Se Method for oxidative dehydrogenation of n-butenes to butadiene
US9399606B2 (en) 2012-12-06 2016-07-26 Basf Se Catalyst and process for the oxidative dehydrogenation of N-butenes to butadiene
US10144681B2 (en) 2013-01-15 2018-12-04 Basf Se Process for the oxidative dehydrogenation of N-butenes to butadiene
WO2015004042A2 (en) 2013-07-10 2015-01-15 Basf Se Method for the oxidative dehydrogenation of n-butenes to butadiene
WO2016177764A1 (en) 2015-05-06 2016-11-10 Basf Se Method for producing catalysts containing chrome, for the oxidative dehydrogenation of n-butenes to form butadiene while avoiding cr(vi) intermediates

Also Published As

Publication number Publication date
FR94476E (en) 1969-08-22
AT291204B (en) 1971-07-12
ES348752A2 (en) 1969-03-16
NL159597B (en) 1979-03-15
SE345441B (en) 1972-05-29
DE1642921B2 (en) 1978-03-02
GB1203321A (en) 1970-08-26
BE708692A (en) 1968-06-28
DE1642921C3 (en) 1978-11-23
NL6800134A (en) 1968-07-05

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