Tin/cerium compounds for lignosulfonate processing
    5.
    发明公开
    Tin/cerium compounds for lignosulfonate processing 失效
    Zinn / Cerium VerbindungenfürLignosulfonatveredelung。

    公开(公告)号:EP0600343A1

    公开(公告)日:1994-06-08

    申请号:EP93118819.7

    申请日:1993-11-23

    Inventor: Patel, Bharat B.

    CPC classification number: C09K8/203 C07G17/002

    Abstract: This invention concerns tin-, cerium-, and base-treated tin-bearing lignosulfonates, a process for their preparation from calcium lignosulfonate, and a process for the use thereof as drilling fluid additives.

    Abstract translation: 本发明涉及锡,铈和碱处理的含锡木质素磺酸盐,其由木质素磺酸钙制备的方法及其用作钻井液添加剂的方法。

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