Method and apparatus for the production of metal oxide powder
    1.
    发明授权
    Method and apparatus for the production of metal oxide powder 失效
    用于生产金属氧化物粉末的方法和装置

    公开(公告)号:US5122360A

    公开(公告)日:1992-06-16

    申请号:US441793

    申请日:1989-11-27

    摘要: The present invention provides a method for preparing metal oxide powder. A first solution, which is substantially organic, is prepared. A second solution, which is an aqueous solution substantially immiscible in the first solution, is prepared and delivered as drops to the first solution. The drops of the second solution are atomized by a pulsed electric field forming micro-drops of the second solution. Reagents in the first solution diffuse into and react with reactants in the micro-drops of the second solution forming metal hydroxide or oxalate particles. The metal hydroxide or metal oxalate particles are then recovered and dried to produce the metal oxide powder. An apparatus for preparing a metal oxide powder is also disclosed.

    摘要翻译: 本发明提供一种制备金属氧化物粉末的方法。 制备基本上是有机的第一溶液。 制备第二溶液,其是在第一溶液中基本上不混溶的水溶液,并且以液滴形式递送至第一溶液。 第二溶液的液滴通过形成第二溶液的微滴的脉冲电场而雾化。 第一溶液中的试剂扩散入第二溶液的微滴中并与反应物反应,形成金属氢氧化物或草酸盐颗粒。 然后回收金属氢氧化物或金属草酸盐颗粒并干燥以制备金属氧化物粉末。 还公开了一种制备金属氧化物粉末的装置。

    Diffusion transfer film system with protective layer of copper salt,
chitosan and selected polyols
    5.
    发明授权
    Diffusion transfer film system with protective layer of copper salt, chitosan and selected polyols 失效
    具有铜盐,壳聚糖和选择的多元醇保护层的扩散转移膜系统

    公开(公告)号:US4386151A

    公开(公告)日:1983-05-31

    申请号:US400906

    申请日:1982-07-22

    CPC分类号: G03C8/06

    摘要: A silver diffusion transfer film unit which comprises, in order, a support, a silver precipitating layer, a protective layer comprising chitosan having a copper salt and a polyol selected from the group consisting of glycerol, sorbitol, polyvinyl alcohol, inositol, ethylene glycol, propylene glycol and hydroxyethyl cellulose disposed therein, a release layer, and a photosensitive silver halide layer. In a particularly preferred embodiment, the film unit is an additive color diffusion transfer film unit.

    摘要翻译: 银扩散转移膜单元,其依次包括载体,银沉淀层,包含具有铜盐的壳聚糖的保护层和选自甘油,山梨醇,聚乙烯醇,肌醇,乙二醇, 设置在其中的丙二醇和羟乙基纤维素,脱模层和感光卤化银层。 在一个特别优选的实施方案中,胶片单元是一种加色扩散转移膜单元。

    Apparatus for determining percent of moisture
    8.
    发明授权
    Apparatus for determining percent of moisture 失效
    用于确定水分百分比的装置

    公开(公告)号:US4838705A

    公开(公告)日:1989-06-13

    申请号:US59112

    申请日:1987-06-08

    CPC分类号: G01N5/045 G01N5/025

    摘要: The apparatus determines the content by weight of a volatile fluid, such as water, in a sample under test where the volatile fluid is typically less than one-half percent by weight by heating the sample in a sealed chamber to evaporate the volatile fluid under test. The evaporated fluid is passed through a collector which senses and collects only the evaporated volatile fluid of interest which collection correspondingly increases the weight of the collector. Measuring the weight change of the collector and comparing it with the initial weight of the test sample provides a determination of the percent of the sensed volatile fluid in the test sample.

    摘要翻译: 该装置通过在密封室中加热样品以蒸发被测试的挥发性流体来确定待测试样品中的挥发性流体(例如水)的含量,其中挥发性流体通常小于重量百分之二十的重量百分比 。 蒸发的液体通过收集器,该收集器仅感测并收集所关注的蒸发的挥发性流体,该收集物相应地增加收集器的重量。 测量收集器的重量变化并将其与测试样品的初始重量进行比较,可以确定测试样品中感测到的挥发性液体的百分比。