公开(公告)号：US06831068B2

公开(公告)日：2004-12-14

申请号：US10361221

申请日：2003-02-10

申请人： Richard Clark ,  Stevan Djuric ,  Zhenkun Ma ,  Sanyi Wang

发明人： Richard Clark ,  Stevan Djuric ,  Zhenkun Ma ,  Sanyi Wang

IPC分类号： A61K3170

CPC分类号： C07H17/08

摘要： Antibacterial compounds having formula (I) and salts, prodrugs, and salts of prodrugs thereof, processes for making the compounds and intermediates used in the processes, compositions containing the compounds, and methods for prophylaxis or treatment of bacterial infections using the compounds are disclosed.

摘要翻译： 公开了具有式（I）的抗菌化合物及其前体药物的前体药物和前体药物，其制备方法中使用的化合物和中间体，含该化合物的组合物，以及使用该化合物预防或治疗细菌感染的方法。

公开(公告)号：US06504161B1

公开(公告)日：2003-01-07

申请号：US09624091

申请日：2000-07-24

申请人： Stuart A. Jackson ,  John R. Mercer ,  Elena Atrazheva ,  Karima Hudda ,  Sanyi Wang

发明人： Stuart A. Jackson ,  John R. Mercer ,  Elena Atrazheva ,  Karima Hudda ,  Sanyi Wang

IPC分类号： G01N500

CPC分类号： G01J1/50

摘要： A radiation indicator device for use in indicating exposure to ultraviolet-B radiation. The device includes a radiation sensitive mixture which is selectively responsive to ultraviolet radiation having a wavelength substantially within or shorter than the range of wavelengths of ultraviolet-B radiation. The radiation sensitive mixture includes an organic halogen constituent capable of producing at least one acidic product upon exposure to ultraviolet radiation and an indicator constituent capable of producing a change in color in response to a change in concentration of the acidic product. The radiation sensitive mixture has a first color representing a relatively low concentration of the acidic product and has a second color representing a relatively high concentration of the acidic product. The first color is visually distinguishable from the second color. The device may also include a graphic pattern interposed amongst the radiation sensitive mixture, which graphic pattern has a graphic pattern color substantially identical to either the first color or the second color.

摘要翻译： 用于指示暴露于紫外线-B辐射的辐射指示装置。 该装置包括对紫外线辐射有选择地响应的辐射敏感混合物，该紫外线辐射基本上在紫外线-B辐射的波长范围内或更短的范围内。 辐射敏感性混合物包括能够在暴露于紫外线辐射时产生至少一种酸性产物的有机卤素组分和能够响应于酸性产物的浓度变化而产生颜色变化的指示剂组分。 辐射敏感混合物具有表示酸性产物相对低浓度的第一颜色，并且具有代表较高浓度的酸性产物的第二种颜色。 第一种颜色在视觉上与第二种颜色区分开。 该装置还可以包括插入在辐射敏感混合物之间的图形图案，该图形图案具有与第一颜色或第二颜色基本相同的图形图案颜色。

公开(公告)号：US20050194292A1

公开(公告)日：2005-09-08

申请号：US10947076

申请日：2004-09-22

申请人： Jan Beetge ,  Tshitende Kasongo ,  Bradley Komishke ,  Haihong Li ,  Jun Long ,  Jacob Masliyah ,  Petrus Venter ,  Sanyi Wang ,  Zhenghe Xu

发明人： Jan Beetge ,  Tshitende Kasongo ,  Bradley Komishke ,  Haihong Li ,  Jun Long ,  Jacob Masliyah ,  Petrus Venter ,  Sanyi Wang ,  Zhenghe Xu

IPC分类号： C10G1/04 ,  C10G33/04

CPC分类号： C10G33/04 ,  C10G1/047

摘要： A method of improving hydrocarbon recovery from oil sands, oil shale, and petroleum residues includes adding a polymeric or nonpolymeric processing aid capable of sequestering cations, such as the multivalent calcium, magnesium and iron cations. The hydrocarbons are preferably contacted with the processing aid before a primary separation of the hydrocarbons in order to increase bitumen recovery. A processing aid is provided in an effective amount to increase the liberation of the hydrocarbons from inorganic solids, particularly when the source is a poor processing ore. Preferred processing aids include citric acid or a polymeric acid selected from polyacrylic acid, polymethacrylic acid, salts of these acids, partial salts of these acids, and combinations thereof. The processing aids significantly increase the hydrocarbon recovery typically with concentrations less than 50 ppm and the polymeric processing aids can also provide beneficial flocculation of solids in tailings slurry.

摘要翻译： 从油砂，油页岩和石油残渣中提高烃回收的方法包括加入能够螯合阳离子的聚合或非聚合加工助剂，例如多价钙，镁和铁阳离子。 烃优选在烃的一次分离之前与加工助剂接触，以增加沥青回收率。 提供了有效量的加工助剂以增加烃从无机固体中的释放，特别是当源是不良的加工矿石时。 优选的加工助剂包括柠檬酸或选自聚丙烯酸，聚甲基丙烯酸，这些酸的盐，这些酸的部分盐及其组合的聚合酸。 加工助剂通常以低于50ppm的浓度显着增加烃回收率，而聚合加工助剂也可以在尾矿浆料中提供有益的固体絮凝。