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    • 4. 发明授权
    • Process for recovering onium hydroxides from solutions containing onium
compounds
    • 从含有鎓化合物的溶液中回收氢氧化镧的方法
    • US5968338A
    • 1999-10-19
    • US009319
    • 1998-01-20
    • David R. HulmeRoger MoultonWilfred W. WilsonMark Hellums
    • David R. HulmeRoger MoultonWilfred W. WilsonMark Hellums
    • C02F1/46C02F1/461C02F1/469
    • C02F1/469C02F1/46C02F2201/46115
    • In one embodiment, the present invention relates to a process for recovering an onium hydroxide from a solution containing an onium compound, including contacting the solution with a cation exchange material so that at least a portion of onium cations from the onium compound are adsorbed by the cation exchange material; contacting an acid with the cation exchange material to elute an onium salt; charging the onium salt to an electrochemical cell containing at least three compartments, a cathode, an anode, and in order from the anode to the cathode, a bipolar membrane and a cation selective membrane, and passing a current through the cell whereby the onium hydroxide is regenerated; and recovering the onium hydroxide from the cell. In another embodiment, the present invention relates to a process for recovering an onium hydroxide from a solution containing an onium compound, including contacting the solution with a cation exchange material so that at least a portion of onium cations from the onium compound are adsorbed by the cation exchange material; contacting an acid with the cation exchange material to elute an onium salt; charging the onium salt to an electrochemical cell containing at least two compartments, a cathode, an anode, and an anion selective membrane therebetween, and passing a current through the cell whereby the onium hydroxide is regenerated; and recovering the onium hydroxide from the cell.
    • 在一个实施方案中,本发明涉及从含有鎓化合物的溶液中回收氢氧化鎓的方法,包括使该溶液与阳离子交换材料接触,使得至少一部分来自鎓化合物的鎓阳离子被 阳离子交换材料; 使酸与阳离子交换材料接触以洗脱鎓盐; 将鎓盐充电到包含至少三个隔室,阴极,阳极以及从阳极到阴极的顺序的电化学电池,双极膜和阳离子选择性膜,并且使电流通过电池,由此氢氧化鎓 再生; 并从细胞中回收氢氧化鎓。 在另一个实施方案中,本发明涉及从含有鎓化合物的溶液中回收氢氧化鎓的方法,包括使该溶液与阳离子交换材料接触,使得至少一部分来自鎓化合物的鎓阳离子被 阳离子交换材料; 使酸与阳离子交换材料接触以洗脱鎓盐; 将鎓盐充电至包含至少两个隔室,阴极,阳极和阴离子选择性隔膜之间的电化学电池,并使电流通过电池,由此再生氢氧化鎓; 并从细胞中回收氢氧化鎓。
    • 5. 发明授权
    • Lewis acid ionic liquids
    • 路易斯酸离子液体
    • US07053232B2
    • 2006-05-30
    • US10642437
    • 2003-08-15
    • Roger Moulton
    • Roger Moulton
    • C07F5/06
    • C07F5/069
    • The present inventions relate to novel ionic liquids comprising a Lewis acid anion such as AlyR3y+1 wherein y is greater than 0 and R is independently selected from the group consisting of an alkyl group and halogen group. The cation of the ionic liquids can be selected from ammonium, sulfonium, and phosphonium cations wherein said cation generally has less than 14 total carbon atoms. The anion may contain an organic bridge to bond neighboring aluminum atoms that would otherwise be susceptible to leaching aluminum trichloride. The ionic liquids are useful in many applications and particularly as catalysts.
    • 本发明涉及包含路易斯酸阴离子的新型离子液体,例如Al 3 Y 3 y + 1,其中y大于0,R独立地选自 的烷基和卤素基团。 离子液体的阳离子可以选自铵,锍和鏻阳离子,其中所述阳离子通常具有少于14个总碳原子。 该阴离子可以含有一个有机桥,以结合相邻的铝原子,否则这些铝原子会容易浸出三氯化铝。 离子液体在许多应用中尤其可用作催化剂。