Process for producing high density sintered alumina
    1.
    发明授权
    Process for producing high density sintered alumina 失效
    生产高密度烧结氧化铝的方法

    公开(公告)号:US4045234A

    公开(公告)日:1977-08-30

    申请号:US716723

    申请日:1976-08-23

    申请人: Terry A. Ring

    发明人: Terry A. Ring

    IPC分类号: C01F7/02 C01F7/46 C01F7/06

    摘要: Sintered alumina of low porosity and Na content is made from calcined alumina of 2-6 micron average particle size and about 0.2-1% by weight Na.sub.2 O content by treating the calcined alumina with a synergistically acting combination of a magnesium salt and a boron compound. Suitable magnesium salts include magnesium halides, nitrate, sulfate, acetate and stearate, the water-soluble salts being preferred. As boron compound H.sub.3 BO.sub.3 or B.sub.2 O.sub.3 can be employed. The quantity of magnesium salt in the combination, calculated as Mg, is kept in the range of about 0.01-0.3% by weight of Al.sub.2 O.sub.3, while the boron content, calculated as B.sub.2 O.sub.3, is maintained in the range of about 0.1-1% by weight of Al.sub.2 O.sub.3. Used of the synergistically acting combination in the indicated range allows manufacture of sintered alumina products of less than about 3% total porosity and less than about 0.03% by weight Na content.

    摘要翻译: 低孔隙率和Na含量的烧结氧化铝由平均粒度为2-6微米的煅烧氧化铝和约0.2-1重量%的Na 2 O含量制成,通过用镁盐和硼化合物的协同作用组合处理煅烧的氧化铝。 合适的镁盐包括卤化镁,硝酸盐,硫酸盐,乙酸盐和硬脂酸盐,优选水溶性盐。 由于可以使用硼化合物H3BO3或B2O3。 以Mg计,组合中的镁盐的量保持在Al2O3的约0.01-0.3重量%的范围内,而以B 2 O 3计算的硼含量保持在约0.1-1%的范围内,通过 重量的Al2O3。 用于指定范围内的协同作用组合允许制造小于约3%总孔隙率和小于约0.03重量%Na含量的烧结氧化铝产品。

    Method for improving the efficiency of absorption heat pumps using a crystallization-inhibiting additive
    2.
    发明授权
    Method for improving the efficiency of absorption heat pumps using a crystallization-inhibiting additive 有权
    使用结晶抑制添加剂提高吸收式热泵效率的方法

    公开(公告)号:US06432319B1

    公开(公告)日:2002-08-13

    申请号:US09694604

    申请日:2000-10-23

    IPC分类号: C09K500

    CPC分类号: C09K5/047

    摘要: An absorption heat pump achieves improved efficiency by lowering the low cycle temperature of the circulation fluid. This is accomplished by adding a crystallization-inhibiting compound to the circulation fluid which substantially depresses the temperature at which the absorbent salt in the fluid begins to crystallize.

    摘要翻译: 吸收式热泵通过降低循环流体的低循环温度来提高效率。 这通过向循环流体中加入结晶抑制化合物来实现,其基本上降低了流体中的吸收盐开始结晶的温度。

    Absorption heat pumps having improved efficiency using a crystallization-inhibiting additive
    3.
    发明授权
    Absorption heat pumps having improved efficiency using a crystallization-inhibiting additive 有权
    使用结晶抑制添加剂的吸收式热泵具有提高的效率

    公开(公告)号:US06177025B1

    公开(公告)日:2001-01-23

    申请号:US09193520

    申请日:1998-11-17

    IPC分类号: C09K500

    CPC分类号: C09K5/047

    摘要: An absorption heat pump achieves improved efficiency by lowering the low cycle temperature of the circulation fluid. This is accomplished by adding a crystallization-inhibiting compound to the circulation fluid which substantially depresses the temperature at which the absorbent salt in the fluid begins to crystallize.

    摘要翻译: 吸收式热泵通过降低循环流体的低循环温度来提高效率。 这通过向循环流体中加入结晶抑制化合物来实现,其基本上降低了流体中的吸收盐开始结晶的温度。

    Method and apparatus for preventing bacteria and algae growth in water
    5.
    发明授权
    Method and apparatus for preventing bacteria and algae growth in water 失效
    防止水中细菌和藻类生长的方法和装置

    公开(公告)号:US06824794B2

    公开(公告)日:2004-11-30

    申请号:US10159135

    申请日:2002-05-31

    IPC分类号: A01N5920

    摘要: A water treatment agent and method of treating water to inhibit, reduce, or prevent the formation of algae and bacteria in a water body. The water treatment agent may include copper sulfate penta-hydrate and/or silver, di-sodium ethylene di-amine tetra-acetic acid dihydrate, a scale inhibitor, a shocking agent and a buffer agent. For instance, the treatment agent may include a composition of copper sulfate pentahydrate, di-sodium ethylene di-amine tetra-acetic acid, monopotassium phosphate or sulfuric acid, and potassium monopersulfate and 1-hydroxyethylidene-1,1-diphosphonic acid.

    摘要翻译: 水处理剂和水处理以抑制,减少或防止水体中藻类和细菌形成的方法。 水处理剂可以包括五水合硫酸铜和/或银,二亚乙基二胺四乙酸二水合物,防垢剂,冲击剂和缓冲剂。 例如,处理剂可以包括五水合硫酸铜,二亚乙基二胺四乙酸,磷酸二氢钾或硫酸的组合物,以及单 - 硫酸钾和1-羟基亚乙基-1,1-二膦酸的组合物。