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    • 71. 发明授权
    • Method for separating mercury from fluids using composite articles
    • 使用复合制品从流体中分离汞的方法
    • US5492627A
    • 1996-02-20
    • US268286
    • 1994-06-29
    • Donald F. HagenWanda BahmetLouis C. HaddadRobert E. Perkins
    • Donald F. HagenWanda BahmetLouis C. HaddadRobert E. Perkins
    • B01D15/00B01D53/64B01J20/06B01J20/28B01D61/00
    • B01J20/28028B01D15/00B01D53/64B01J20/103B01J20/28059B01J20/3234Y10S210/914
    • Composite articles are useful for separating mercury from fluids. The composite articles can be porous supports comprising an inert substrate having immobilized thereon finely divided gold optionally in combination with a tin salt coating. The porous support can be a particulate or porous fibrous webs. Alternatively, the composite articles can comprise a porous fibrous membrane having enmeshed therein the aforementioned porous supports which can be in particulate or fibrous forms. The method for separating elemental, ionic, or organic mercury in fluids comprises the step of contacting and passing a fluid containing mercury through a support comprising a porous, high surface area, inert substrate on which is immobilized finely divided elemental gold at a controlled rate for a time sufficient for the mercury to sorb to the elemental gold and to provide an immobilized gold-mercury amalgam on the support. If a tin salt also is immobilized on the inert substrate, mercury-tin salt can also be formed. In a further, and optional, step, elemental mercury can be removed from the support and optionally can be quantified.
    • 复合制品可用于从流体中分离汞。 复合制品可以是多孔载体,其包括其上固定有细碎金的惰性基材,任选与锡盐涂层组合。 多孔载体可以是颗粒或多孔纤维网。 或者,复合制品可以包括多孔纤维膜,其中包含可以是颗粒或纤维形式的上述多孔载体。 用于分离流体中的元素,离子或有机汞的方法包括使包含汞的流体通过包含多孔,高表面积的惰性基质的载体接触和通过的步骤,在其上以受控的速率将细分的元素金固定在其上 足以使汞吸附到元素金上并在载体上提供固定的金汞汞合金。 如果锡盐也固定在惰性基材上,也可以形成汞锡盐。 在另外的和任选的步骤中,元素汞可以从支持物中除去并且可任选地被定量。
    • 72. 发明授权
    • Packing material for liquid chromatography
    • 液相色谱填充材料
    • US5441635A
    • 1995-08-15
    • US29940
    • 1993-03-10
    • Takeshi IchitsukaTetsuro OgawaMasaya Sumita
    • Takeshi IchitsukaTetsuro OgawaMasaya Sumita
    • B01D15/08B01J20/04B01J20/32
    • B01J20/28059B01D15/3847B01J20/048B01J20/28004B01J20/28019B01J20/28078B01J20/282B01J20/286B01J20/3021B01J20/3028B01J20/3064B01J20/3078B01J20/3092B01J20/3204B01J20/3208B01J20/3234B01J2220/54B01J2220/58
    • Column packing materials useful in applications such as liquid chromatography, as well as a process for producing such a packing material are described. A first aspect of the invention concerns a column packing material composed of a spherical substrate having a coating of a calcium phosphate based compound on the surface thereof.A second aspect of the invention concerns a packing material comprising porous calcium phosphate based granules having open pores with an average pore size of from 0.01 to 20 .mu.m, said granules being composed of crystalline particles with an average size of from 0.1 to 10 .mu.m.A third aspect of the invention concerns a spherical packing material for liquid chromatography comprising spherical particles of at least one material selected from the group consisting of Ca.sub.10 (PO.sub.4).sub.6 (OH).sub.2, Ca.sub.3 (PO.sub.4).sub.2, Ca.sub.2 P.sub.2 O.sub.7, Ca(PO.sub.3).sub.2, Ca.sub.10 (PO.sub.4).sub.6 F.sub.2 and Ca.sub.10 (PO.sub.4).sub.6 Cl.sub.2, said packing material having a dense structure with a porosity of no more than 5%.A fourth aspect of the invention concerns a packing for liquid chromatography comprising particles having at least on the surface thereof a fluoroapatite represented by formula (I):Ca.sub.10 (PO.sub.4).sub.6 (OH).sub.2-2x F.sub.2x (I)wherein x is a number of from about 0.1 to 1.
    • 描述了可用于诸如液相色谱法的应用的柱状填料,以及用于生产这种包装材料的方法。 本发明的第一方面涉及一种柱状填充材料,其由在其表面上具有磷酸钙基化合物的涂层的球形基材构成。 本发明的第二方面涉及一种包含多孔磷酸钙基颗粒的包装材料,其具有平均孔径为0.01至20μm的开放孔,所述颗粒由平均尺寸为0.1-10μm的结晶颗粒组成 。 本发明的第三方面涉及一种用于液相色谱的球形包装材料,其包括选自Ca10(PO4)6(OH)2,Ca3(PO4)2,Ca2P2O7,Ca(PO3) 2,Ca10(PO4)6F2和Ca10(PO4)6Cl2,所述包装材料具有孔隙率不超过5%的致密结构。 本发明的第四方面涉及一种用于液相色谱的填料,其包括至少在其表面上具有由式(I)表示的氟磷灰石的颗粒:Ca10(PO4)6(OH)2-2xF2x(I),其中x是 约0.1至1。