Separating sublimation products from gases
    1.
    发明授权
    Separating sublimation products from gases 失效
    从气体分离产品

    公开(公告)号:US3559723A

    公开(公告)日:1971-02-02

    申请号:US3559723D

    申请日:1968-10-31

    Applicant: BASF AG

    CPC classification number: B01D7/02

    Abstract: Separating sublimation products from gases in nested tube separators having heat exchange in the interior of the separator as well as from the outer wall, the outer wall being kept, during the sublimation and melting out of the sublimation product, substantially constantly at a temperature which is somewhat above the melting point of the sublimation product; in the corresponding apparatus, the heat exchange system for the interior and that for the exterior of the separator are separate from each other.

    8.
    发明专利
    未知

    公开(公告)号:DE3484265D1

    公开(公告)日:1991-04-18

    申请号:DE3484265

    申请日:1984-11-14

    Applicant: BASF AG

    Abstract: Crystallite suspensions containing from 3 to 70 weight percent of a crystalline, ethylenically unsaturated polyester prepared through condensation polymerization, and having a molecular weight factor per double bond of 154.4 to 408, as the dispersed phase, and from 30 to 97 weight percent of a polyhydroxyl compound having a functionality of from 2 to about 8, a hydroxyl number of from 20 to 800, and a melting point of less than 30 DEG C. as the coherent phase are suitable for preparing non-cellular and cellular polyurethane- or polyurethane group-containing polyisocyanurate foams.

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