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    • 3. 发明授权
    • Removal of organic contaminants from bauxite and other ores
    • 从铝土矿和其他矿石中去除有机污染物
    • US4519989A
    • 1985-05-28
    • US468312
    • 1983-02-22
    • Alan PearsonPaul J. The
    • Alan PearsonPaul J. The
    • C01F7/06C01F7/47
    • C01F7/0613C01F7/473
    • A process for removing organic contaminants from a mineral ore such as bauxite. The ore is washed with an aqueous solution containing caustic soda, sodium carbonate or mixtures thereof in an amount up to about 80 g/l total alkali content (expressed as sodium carbonate equivalent). The ore is preferably washed at a temperature of about 95.degree. C. for about 5 hours with a solution containing about 20 g/l total alkali content. In a preferred embodiment, the ore is separated from a rinse solution containing degradation products of organic contaminants, and the washed ore is then dissolved in a caustic solution to produce Bayer process liquor. This process provides a means to reduce the organic carbon concentration in Bayer process liquor, with resultant increase in productivity of the Bayer process.
    • 从矿物矿如铝土矿中除去有机污染物的方法。 矿石用含有苛性钠,碳酸钠或其混合物的水溶液以高达约80g / l总碱含量(以碳酸钠当量表示)的量洗涤。 矿石优选在约95℃的温度下用含有约20g / l总碱含量的溶液洗涤约5小时。 在优选的实施方案中,将矿石与含有有机污染物降解产物的冲洗溶液分离,然后将经洗涤的矿石溶解在苛性碱溶液中以产生拜耳法处理液。 该方法提供了降低拜耳法处理液中有机碳浓度的手段,从而提高了拜耳法生产率。
    • 5. 发明授权
    • Detection of variations in human H2 receptors
    • 检测人H2受体的变异
    • US06346380B1
    • 2002-02-12
    • US09171456
    • 1999-08-03
    • Simon WrightPaul HeathPaul OrangeRonald Carl Alan Pearson
    • Simon WrightPaul HeathPaul OrangeRonald Carl Alan Pearson
    • C12Q168
    • C12Q1/6883C07K14/723
    • A group of oligonucleotides for the identification of sequences in a sample comprising human histamine H2 receptor DNA, cDNA or RNA originating from a tissue sample or body fluid is employed in the diagnosis and/or treatment of human neurological and psychiatric disorders, particularly schizophrenia, and diseases of other systems or organs of the human body. The oligonucleotides, suitable for use as primers for the amplification of DNA corresponding to a region of a human histamine H2 receptor, have nucleotide sequences selected from: 5′ACACCAGCCTGGATGTGA 3′(as listed in SEQ ID NO:12), 5′TCACATCCAGGCTGGTCT 3′ (as listed in SEQ ID NO:13), 5′ CAATCATACCACCTCTAA 3′ (as listed in SEQ ID NO:14), 5′ ACACAAACGCGGTGAAGT 3′(as listed in SEQ ID NO:15). Also described is a diagnostic kit comprising one or more of the above mentioned oligonucleotides.
    • 用于鉴定包含来自组织样品或体液的人组胺H 2受体DNA,cDNA或RNA的样品中的序列的一组寡核苷酸用于诊断和/或治疗人类神经和精神疾病,特别是精神分裂症,以及 其他系统或人体器官的疾病。 适用于扩增相应于人组胺H 2受体区域的DNA的引物的寡核苷酸具有选自以下的核苷酸序列:5'ACACCAGCCTGGATGTGA 3'(如SEQ ID NO:12所示),5'TCACATCCAGGCTGGTCT 3 (如SEQ ID NO:13所示),5'CAATCATACCACCTCTAA 3'(如SEQ ID NO:14所示),5'ACACAAACGCGGTGAAGT 3'(如SEQ ID NO:15所示)。 还描述了包含一种或多种上述寡核苷酸的诊断试剂盒。
    • 9. 发明授权
    • Low temperature mineralization of alumina
    • 氧化铝低温矿化
    • US06203773B1
    • 2001-03-20
    • US09351968
    • 1999-07-12
    • Michael A. EasleyAlan PearsonDinesh MoorjaniJohn E. Marhanka
    • Michael A. EasleyAlan PearsonDinesh MoorjaniJohn E. Marhanka
    • C01F702
    • C01F7/46C01F7/021C01P2004/61C01P2006/11C01P2006/12C01P2006/60C01P2006/62C01P2006/80
    • Alpha alumina particles are made by heating particles of alumina with an aqueous solution containing a dissolved fluorine-containing compound and an acid; separating the particles from the solution and then calcining the particles at a temperature not greater than about 1025° C. The alumina particles preferably have an LOI in the range of about 1-20 wt. %; more preferably about 1-6 wt. %. Alpha alumina particles of the invention are more readily ground into smaller particles than alpha alumina particles made by calcining at higher temperatures. The remaining soda in the alpha alumina is found to be highly soluble in hot water. The process produces low soda content (0.01 wt. % Na2O or less) alpha alumina crystals from alumina feedstocks with 0.5 wt. % or more initial soda levels. The alpha alumina crystals produced are as large as 30-40 microns. Most typically; the size range is between 2 and 8 microns. Because of the low mineralization temperature, the particles require significantly less grinding time to separate the component alpha crystals.
    • 通过用含有溶解的含氟化合物和酸的水溶液加热氧化铝颗粒来制备α-氧化铝颗粒; 将颗粒与溶液分离,然后在不大于约1025℃的温度下煅烧颗粒。氧化铝颗粒优选具有约1-20重量%的LOI。 %; 更优选约1-6wt。 %。 本发明的α氧化铝颗粒比通过在较高温度下煅烧制备的α氧化铝颗粒更容易研磨成较小的颗粒。发现α氧化铝中的剩余苏打在高温下可溶于热水。 该方法从0.5重量%的氧化铝原料产生低苏打含量(0.01重量%Na 2 O或更少)的α氧化铝晶体。 初始苏打水平的百分比以上。 产生的α氧化铝晶体大至30-40微米。 最典型的 尺寸范围在2到8微米之间。 由于矿化温度低,颗粒需要明显较少的研磨时间来分离组分α晶体。