52.
    发明专利
    未知

    公开(公告)号:DE102005026360A1

    公开(公告)日:2006-12-28

    申请号:DE102005026360

    申请日:2005-06-07

    Applicant: BASF AG

    Abstract: Processes comprising providing a catalyst precursor, and heating the catalyst precursor to a temperature of at least 350° C. in an atmosphere comprising air, wherein air is fed into the atmosphere at a rate of 0.05 to 4.0 standard m 3 /h, and wherein the catalyst precursor is activated at a temperature of at least 350° C. for more than 9 hours are described along with catalysts formed thereby and uses for such catalysts.

    53.
    发明专利
    未知

    公开(公告)号:BRPI0414770A

    公开(公告)日:2006-11-21

    申请号:BRPI0414770

    申请日:2004-09-24

    Applicant: BASF AG

    Abstract: The invention relates to a process for producing a catalyst for gas-phase oxidations, which comprises weighing a particulate inert support having a total mass of M support into a fluidized-bed apparatus, providing an aqueous suspension of a catalytically active material or sources therefor and a binder having a binder content of B susp , fluidizing the inert support by introduction of a gas stream heated to a temperature of T gas at a flow rate of Q gas , and spraying the suspension at a rate of Q susp onto the fluidized inert support. When Q gas , Q susp , B susp , M support and T gas are selected within the ranges 3000 gas [m 3 /h] susp [g/min] susp [% by weight] support [kg] gas [° C.] K=0.020 Q gas -0.055 Q susp +7.500 B susp -0.667 M support +2.069 T gas -7 satisfies the relationship 127.5

    55.
    发明专利
    未知

    公开(公告)号:DE10335346A1

    公开(公告)日:2005-02-24

    申请号:DE10335346

    申请日:2003-08-01

    Applicant: BASF AG

    Abstract: A catalyst for gas-phase oxidations which comprises an inert support and a catalytically active composition comprising transition metal oxides applied thereto, or a precatalyst, is described. The (pre)catalyst is obtained by treating the inert support with an aqueous suspension or solution of the transition metal oxides or their precursor compounds, where the suspension contains a binder dispersion and the binder is a copolymer of an alpha-olefin and a vinyl-C 2 -C 4 -carboxylate whose vinyl C 2 -C 4 -carboxylate content is at least 62 mol %.

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