3.
    发明专利
    未知

    公开(公告)号:DE3874221D1

    公开(公告)日:1992-10-08

    申请号:DE3874221

    申请日:1988-06-08

    Applicant: BASF AG

    Abstract: In the prodn. of catalyst films, contg. Mo, Fe, Bi and opt. one of Co, Ni, Zn and Mg and one of D, B and As, on support particles, solns. or suspensions of the catalytically active components are sprayed onto the particles which travel in a rotary container through the spray zone at 100-200 deg.C and subsequent drying and calcining zones at 200-600 deg.C so that wetting, drying and calcining occur successively.

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