PREPARING CERIUM(III) COMPOUNDS
    1.
    发明申请
    PREPARING CERIUM(III) COMPOUNDS 审中-公开
    制备CERIUM(III)化合物

    公开(公告)号:US20130109563A1

    公开(公告)日:2013-05-02

    申请号:US13661706

    申请日:2012-10-26

    Applicant: BASF SE

    Abstract: The invention relates to a process for preparing cerium(III) compounds which comprises the steps of a) contacting a starting composition A comprising cerium dioxide and at least one further metal oxide selected from the group consisting of iron oxide, silicon dioxide, molybdenum oxide, lanthanum oxide, magnesium oxide and calcium oxide with at least one acid S and at least one iron component E comprising iron in the oxidation state 0 and/or II at a temperature ranging from 40 to 160° C. and at a pH of not more than 2 to obtain a solution L comprising cerium in the oxidation state III; b) adding at least one basic compound C to said solution L to obtain a solid F comprising at least one cerium(III) compound; c) separating off said solid F comprising at least one cerium(III) compound.

    Abstract translation: 本发明涉及一种制备铈(III)化合物的方法,其包括以下步骤:a)使包含二氧化铈和至少一种另外的金属氧化物的起始组合物A与氧化铁,二氧化硅,氧化钼, 氧化镧,氧化镁和氧化钙与至少一种酸S和至少一种含有氧化态0和/或II的铁的铁组分E在40至160℃的温度和不超过pH 以获得包含处于氧化态III的铈的溶液L; b)向所述溶液L中加入至少一种碱性化合物C以获得包含至少一种铈(III)化合物的固体F; c)分离包含至少一种铈(III)化合物的所述固体F。

Patent Agency Ranking