IE41329L - Catalyst, producing acrylonitrile. - Google Patents

Catalyst, producing acrylonitrile.

Info

Publication number
IE41329L
IE41329L IE750684A IE68475A IE41329L IE 41329 L IE41329 L IE 41329L IE 750684 A IE750684 A IE 750684A IE 68475 A IE68475 A IE 68475A IE 41329 L IE41329 L IE 41329L
Authority
IE
Ireland
Prior art keywords
catalyst
range
bismuth
molybdenum
iron
Prior art date
Application number
IE750684A
Other versions
IE41329B1 (en
Original Assignee
Asahi Chemical Ind
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 Asahi Chemical Ind filed Critical Asahi Chemical Ind
Publication of IE41329L publication Critical patent/IE41329L/en
Publication of IE41329B1 publication Critical patent/IE41329B1/en

Links

Classifications

    • 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

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)

Abstract

A process for producing acrylonitrile by reacting propylene with ammonia and oxygen in a fluidized bed reactor, in the presence of a catalyst containing oxides of molybdenum, bismuth, iron and phosphorus, supported on silica which is characterized by: (1) Preparing a slurry of catalyst raw material by using a silica sol phosphoric acid and molybdenum, bismuth, iron, and sodium in the form of their salts which are each soluble in water or nitric acid so as to obtain a catalyst having a composition mentioned below, and further so as to give 40% by weight or less of non-volatile solid matters in the slurry when dried in the subsequent step of spray drying; (2) spray-drying the resulting slurry at a temperature of 300degrees C or lower; (3) calcining the resultant powder at a temperature ranging from 650degrees C to 710degrees C and optionally pre-calcining it at a temperature ranging 250degrees C to 500degrees C, prior to said calcination; (4) thus obtaining a catalyst consisting of oxides of the elements of molybdenum, bismuth, iron and phosphorus and as a further added essential constituent, oxide of sodium, supported on 45-55% by weight of silica, and having the ratio of the constituents expressed by the general formula of Mo12BiaFebNacPd wherein the suffixed of a, b, c and d are atomic ratios of each of the elements relative to Mo12 and a is in the range of 4 to 6, b is in the range of 4 to 6, c is in the range of 1.1 to 6 and d is in the range of 0.5 to 1.5, and (5) fluidizing the catalyst obtained above by a stream of the mixed gas comprising propylene, ammonia and air in a ratio by volume of 1.0:1.0-1.3:9.0-11.0, at a contact time between 1 to 10 seconds, at a reaction temperature of 440-500degrees C and a reaction pressure of 0-1 kg/Cm2 (gauge). [IN143534A1]
IE684/75A 1974-03-27 1975-03-27 Method for producing acrylonitrile and catalyst therefor IE41329B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49033406A JPS50129519A (en) 1974-03-27 1974-03-27

Publications (2)

Publication Number Publication Date
IE41329L true IE41329L (en) 1975-09-27
IE41329B1 IE41329B1 (en) 1979-12-05

Family

ID=12385703

Family Applications (1)

Application Number Title Priority Date Filing Date
IE684/75A IE41329B1 (en) 1974-03-27 1975-03-27 Method for producing acrylonitrile and catalyst therefor

Country Status (6)

Country Link
JP (1) JPS50129519A (en)
AU (1) AU7938275A (en)
ES (1) ES436085A1 (en)
IE (1) IE41329B1 (en)
IN (1) IN143534B (en)
SU (1) SU1109049A3 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412913B2 (en) * 1974-03-23 1979-05-26

Also Published As

Publication number Publication date
JPS50129519A (en) 1975-10-13
AU7938275A (en) 1976-09-23
ES436085A1 (en) 1977-01-01
IN143534B (en) 1977-12-24
IE41329B1 (en) 1979-12-05
SU1109049A3 (en) 1984-08-15

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