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    • 42. 发明授权
    • Metal-exchanged carboxylato-alumoxanes and process of making metal-doped alumina
    • 金属交换的羧基铝氧烷和制备金属掺杂氧化铝的方法
    • US06207130B1
    • 2001-03-27
    • US09058587
    • 1998-04-10
    • Aivaras KareivaChuansheng BaiCharles Jeffrey HarlanD. Brent MacQueenAndrew R. BarronRonald L. Cook
    • Aivaras KareivaChuansheng BaiCharles Jeffrey HarlanD. Brent MacQueenAndrew R. BarronRonald L. Cook
    • C01F702
    • C01F7/002B82Y30/00C01F7/04C01F7/16C01F7/30C01F17/0025C01G1/00C01G45/006C01G51/006C01P2002/32C01P2002/34C01P2002/52C01P2002/54C01P2004/64C07F5/069C07F15/025C07F15/045C07F15/065
    • A method has been developed for the solution-based metal exchange of carboxylato-alumoxanes [Al(O)x(OH)y(O2CR)z]n with a wide range of metal cations. Metal-exchanged carboxylato-alumoxanes are new, particularly those in which about 10% to about 50% or more of the Al ions are exchanged for other metal ions. Additionally, the carboxylic acid ligands can be stripped from the boehmite core of metal-exchanged carboxylato-alumoxanes at low temperature leading to the formation of metal-exchanged boebmite particles. These new material phases can be used as intermediates for preparation of mixed metal aluminum oxide materials. Thermolysis of the metal-exchanged carboxylato-alumoxanes or metal-exchanged boehmite particles results in doped aluminas (M/Al2O3), binary (MAlOx), ternary (MM′AlOx) and even more complex metal aluminum oxide compounds, where M and M′ are metal ions other than those of aluminum and are preferably those of Lanthanide metals or transition metals. The method allows preparation of pure phase materials as well as the preparation of metastable metal aluminum oxide phases. The carboxylato-alumoxanes are prepared by the reaction of boehmite (or pseudoboehmite) with carboxylic acids in a suitable solvent. Up to at least half of the aluminum cations in the boehmite lattice of the carboxylato-alumoxanes can be replaced by the reaction of metal acetylacetonates with the carboxylato-alumoxane in a suitable solvent. The metal exchange reaction can also be carried out by reaction with soluble metal salts. Reactions of boehmite with the metal acetylacetonates (or soluble metal salts) do not lead to the metal exchange reaction observed for the carboxylato-alumoxanes.
    • 已经开发了用于宽范围的金属阳离子的羧基 - 铝氧烷[Al(O)x(OH)y(O 2 CR)z] n的基于溶液的金属交换的方法。 金属交换的羧基铝氧烷是新的,特别是其中约10%至约50%或更多的Al离子被交换为其它金属离子的那些。 此外,羧酸配体可以在低温下从金属交换的羧酸 - 铝氧烷的勃姆石芯中汽提,导致形成金属交换的勃姆沸石颗粒。 这些新材料相可以用作制备混合金属氧化铝材料的中间体。 金属交换的羧酸 - 铝氧烷或金属交换的勃姆石颗粒的热解导致掺杂的氧化铝(M / Al 2 O 3),二元(MA 1 O x),三元(MM'AlO x)和甚至更复杂的金属氧化铝化合物,其中M和M' 是除铝以外的金属离子,优选为镧系金属或过渡金属的金属离子。 该方法允许制备纯相材料以及制备亚稳态金属氧化铝相。 羧基铝氧烷通过勃姆石(或假勃姆石)与羧酸在合适溶剂中的反应来制备。 羧酸 - 铝氧烷的勃姆石晶格中的至少一半的铝阳离子可以通过金属乙酰丙酮化物与羧基 - 铝氧烷在合适的溶剂中的反应来代替。 金属交换反应也可以通过与可溶性金属盐反应来进行。 勃姆石与金属乙酰丙酮化物(或可溶性金属盐)的反应不会导致对羧基铝氧烷观察到的金属交换反应。
    • 44. 发明申请
    • Methods, Systems and Membranes for Separation of Organic Compounds from Liquid Samples
    • 用于从液体样品中分离有机化合物的方法,系统和膜
    • US20120261343A1
    • 2012-10-18
    • US13087706
    • 2011-04-15
    • Andrew R. BarronSamuel J. Maguire-Boyle
    • Andrew R. BarronSamuel J. Maguire-Boyle
    • C02F1/44B01D71/02B01D71/06B05D5/00B01D71/00B01D71/04C02F101/32
    • C02F1/444B01D63/066B01D67/0088B01D69/02B01D2323/02B01D2325/36C02F2101/32C02F2103/08
    • Various aspects of the present invention pertain to porous membranes that comprise: (1) a plurality of pores with pore sizes of more than about 0.1 μm in diameter; and (2) a plurality of hydrophilic molecules. Additional aspects of the present invention pertain to methods of separating organic compounds from a liquid sample by: (1) providing the porous membrane; and (2) flowing the liquid sample through the porous membrane in order to retain organic compounds on the porous membrane. Further aspects of the present invention pertain to systems for separating organic compounds from a liquid sample. Such systems comprises: (1) the porous membrane; and (2) a flowing unit that enables the liquid sample to flow through the porous membrane. Additional aspects of the present invention pertain to methods of making the above-described porous membranes by: (1) coating a surface of a porous membrane containing 0.1 μm pores with a ceramic material; and (2) associating the coated surface of the porous membrane with hydrophilic molecules.
    • 本发明的各个方面涉及多孔膜,其包括:(1)孔径大于约0.1μm的多个孔; 和(2)多个亲水性分子。 本发明的另外的方面涉及通过以下步骤从液体样品中分离有机化合物的方法:(1)提供多孔膜; 和(2)使液体样品流过多孔膜以便将有机化合物保留在多孔膜上。 本发明的其它方面涉及从液体样品中分离有机化合物的系统。 这种系统包括:(1)多孔膜; 和(2)使液体样品能够流过多孔膜的流动单元。 本发明的另外的方面涉及通过以下步骤制造上述多孔膜的方法:(1)用陶瓷材料涂覆含有0.1μm孔的多孔膜的表面; 和(2)将多孔膜的涂覆表面与亲水分子缔合。