COMPOUNDED SURFACE TREATED CARBOXYALKYLATED STARCH POLYCRYLATE COMPOSITES
    45.
    发明申请
    COMPOUNDED SURFACE TREATED CARBOXYALKYLATED STARCH POLYCRYLATE COMPOSITES 审中-公开
    化合物表面处理的羧甲基纤维素聚酰胺复合材料

    公开(公告)号:US20150352520A1

    公开(公告)日:2015-12-10

    申请号:US14399013

    申请日:2013-04-19

    Abstract: A dual-surface treated composite superabsorbent particle comprising a polycarboxylate polymer (e.g., saponified polyacrylamide) and a carboxylated starch polymer is disclosed. The surface of the particle is cross linked through esterification with a C2-C4 polyol exemplified with glycerol. In addition, the surface region is crosslinked through ionic bonds with a trivalent metal ion exemplified with aluminum. In a critical method of making, the acidification of the surface with the polyol occurs prior to treatment with the trivalent metal ion, which results is a hybrid particle that can include up to about 40% of carboxymethyl starch yet exhibit a FSC of at least 47 g/g, a CRC of at least 27 g/g, an AUL of at least 18 g/g under a load of 0.7 psi, and a SFR of at least 180 ml/min. Also disclosed is a method of making that includes a surface esterification prior to aluminum treatment.

    Abstract translation: 公开了一种包含多羧酸盐聚合物(例如皂化聚丙烯酰胺)和羧化淀粉聚合物的双表面处理复合超吸收颗粒。 颗粒的表面通过酯化与C2-C4多元醇交联,以甘油为例。 此外,表面区域通过离子键与以铝为例列举的三价金属离子交联。 在制备的关键方法中,用三元金属离子处理之前,用多元醇进行表面酸化发生,这是一种杂化颗粒,其可以包括高达约40%的羧甲基淀粉,但表现出至少47的FSC g / g,至少27g / g的CRC,在0.7psi负载下至少18g / g的AUL和至少180ml / min的SFR。 还公开了一种制备方法,其包括在铝处理之前的表面酯化。

    Catalyst and its use in desulphurisation
    50.
    发明授权
    Catalyst and its use in desulphurisation 有权
    催化剂及其在脱硫中的应用

    公开(公告)号:US07897037B2

    公开(公告)日:2011-03-01

    申请号:US11858575

    申请日:2007-09-20

    Abstract: A catalyst is provided comprising nickel in a reduced valence state on a carrier comprising zinc oxide and alumina, wherein the Zn:Ni atomic ratio is at least 12, and the catalyst particles are prepared by: mixing zinc oxide in the form of a powder and alumina or an alumina precursor in the form of a powder; peptizing the powder mixture and forming an extrudable dough by adding acid and water to the powder mixture in such amounts that the dough contains 0.8-1.2 moles acid equivalents per kg powder; extruding the extrudable dough to form extrudates; drying and calcining the extrudates; impregnating the extrudates with an aqueous solution of a nickel compound; drying, calcining and reducing the impregnated extrudates. Further provided is a process for desulphurization of a hydrocarbonaceous feedstock using such catalyst.

    Abstract translation: 提供一种催化剂,其包含在包含氧化锌和氧化铝的载体上的还原价态的镍,其中Zn:Ni原子比为至少12,催化剂颗粒通过以下方式制备:将粉末形式的氧化锌和 氧化铝或粉末形式的氧化铝前体; 将粉末混合物胶化并通过向粉末混合物中加入酸和水形成可挤出生面团,其量使得面团含有0.8-1.2摩尔酸当量/ kg粉末; 挤出可挤出的面团以形成挤出物; 干燥和煅烧挤出物; 用镍化合物的水溶液浸渍挤出物; 干燥,煅烧和还原浸渍的挤出物。 还提供了使用这种催化剂对含烃原料进行脱硫的方法。

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