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    • 51. 发明授权
    • Recovery of nickel, cobalt, iron, silica, zinc and copper from laterite ore by sulfuric acid leaching
    • 从红土矿石中回收镍和钴的工艺
    • US07387767B2
    • 2008-06-17
    • US11100814
    • 2005-04-07
    • Finlay CampbellMichael CollinsIan MastersLyle Trytten
    • Finlay CampbellMichael CollinsIan MastersLyle Trytten
    • C22B23/00
    • C01G9/08C01G51/30C01G53/006C01G53/11C22B3/0005C22B15/0093C22B23/043C22B23/0461C22B23/0469C22B23/0476Y02P10/234Y02P10/236
    • A process for recovering nickel and cobalt values from nickel- and cobalt-containing laterite ores as an enriched mixed nickel and cobalt sulphide intermediate and for producing nickel and cobalt metal from the nickel and cobalt sulphide intermediate. The laterite ore is leached as a slurry in a pressure acid leach containing an excess of aqueous sulphuric acid at high pressure and temperature, excess free acid in the leach slurry is partially neutralized to a range of 5 to 10 g/L residual free H2SO4 and washed to yield a nickel- and cobalt-containing product liquor, the product liquor is subjected to a reductant to reduce any Cr(VI) in solution to Cr(III), the reduced product liquor is neutralized to precipitate ferric iron and silicon at a pH of about 3.5 to 4.0, and the neutralized and reduced product liquor is contacted with hydrogen sulphide gas to precipitate nickel and cobalt sulphides. The precipitated nickel and cobalt sulphides can be leached in a water slurry in a pressure oxidation leach, the leach solution subjected to iron hydrolysis and precipitation, the iron-free solution contacted with zinc sulphide to precipitate copper, the iron- and copper-free solution subjected to zinc and cobalt extraction by solvent extraction to produce a nickel raffinate, the nickel raffinate contacted with hydrogen gas to produce nickel powder and the cobalt strip solution from the solvent extraction step contacted with hydrogen gas to produce cobalt powder.
    • 从含镍和钴的红土矿石中回收镍和钴的方法,作为富集的混合镍和硫化钴中间体,并从镍和钴的硫化物中间产生镍和钴的金属。 在高压和高温下,将红土矿石作为浆料浸出在含有过量硫酸水溶液的酸性浸提液中,浸出浆液中的过量游离酸被部分中和至5至10g / L残余游离H < 然后洗涤以产生含镍和钴的产物液,产物液经受还原剂以将溶液中的任何Cr(VI)还原成Cr(Ⅵ) III),还原产物液体被中和以在约3.5至4.0的pH下沉淀三价铁和硅,并将中和的还原产物液体与硫化氢气体接触以沉淀镍和硫化钴。 沉淀的镍和硫化钴可以在压力氧化浸出的水浆中浸出,浸出溶液进行铁水解和沉淀,使无铁溶液与硫化锌接触以沉淀铜,无铁和无铜溶液 通过溶剂萃取进行锌和钴萃取以产生镍萃余液,镍残液与氢气接触以产生镍粉,并且来自溶剂萃取步骤的钴带溶液与氢气接触以产生钴粉末。
    • 52. 发明申请
    • Insect collector and viewer
    • 昆虫收集器和观察者
    • US20070169403A1
    • 2007-07-26
    • US11541384
    • 2006-09-28
    • Michael Collins
    • Michael Collins
    • A01M1/06
    • A01M1/06A01M3/005A01M2200/011A01M2200/012
    • The invention is directed to an insect collection and viewing device comprising a negative air pressure generating assembly including a motor and a fan driven by the motor and a suitably shaped collection nozzle. A viewing chamber is coupled intermediate the collection nozzle and the negative air pressure assembly. The viewing chamber is tubular in shape and has an air permeable-insect impermeable screen at the downstream opening thereof and a movable valve/lens at the upstream opening thereof. When the valve/lens is open an air flow is established through the device. The air flow path is from the nozzle through the viewing chamber into and out of the assembly. In operation insects of interest are captured by sucking the insect into the device through the nozzle, then through the open valve/lens into the viewing chamber where it is captured between the screen and the closed valve. By making the valve in the shape of a transparent lens the trapped insect may be inspected through the magnifying lens.
    • 本发明涉及一种昆虫收集和观察装置,其包括负气压发生组件,其包括马达和由马达驱动的风扇和适当形状的收集喷嘴。 观察室耦合在收集喷嘴和负气压组件的中间。 观察室是管状的,并且在其下游开口处具有透气昆虫不可渗透屏幕,并且在其上游开口处具有可移动阀/透镜。 当阀/透镜打开时,通过该装置建立空气流。 空气流动路径从喷嘴通过观察室进入和离开组件。 在操作中,将昆虫通过喷嘴吸入装置,然后通过打开的阀/透镜进入观察室,捕获在屏幕和封闭的阀之间,捕获感兴趣的昆虫。 通过使透明透镜形状的阀门可以通过放大镜检查被捕获的昆虫。
    • 58. 发明申请
    • Tooth whitening dental tray and method of use
    • 牙齿美白牙托和使用方法
    • US20050036957A1
    • 2005-02-17
    • US10754065
    • 2004-01-07
    • Michael PrencipeSuman ChopraMichael Collins
    • Michael PrencipeSuman ChopraMichael Collins
    • A61C19/06A61K8/22A61K8/81A61K8/891A61Q11/00A61K7/20
    • A61C19/066A61K8/18A61K8/22A61K8/8176A61K8/891A61Q11/00
    • A dental tray with a hydrophobic tooth whitening formulation where the tooth whitening formulation is substantially non-water soluble, and a method of using this dental tray to whiten the teeth. The tooth whitening formulation is primarily comprised of a hydrophobic polymer and a peroxide or a peroxide yielding compound. Preferably the hydrophobic polymer is the condensation product of a silicone resin and an organosiloxane. The dental tray is formed to encompass the front and the rear surfaces of the teeth. The dental tray is comprised of a thermoplastic or thermoset polymer. The teeth whitening formulation is placed into the dental tray and the tray placed against the teeth to be whitened. This is for a sufficient period of time to at least partially whiten teeth. This can be a period of time from about 0.5 hour to 2 hours or more. The substantially non-aqueous tooth whitening formulation is effective over a longer period of time since it is not significantly diluted or removed from the dental tray during the treatment time.
    • 具有疏水牙齿美白配方的牙科托盘,其中牙齿美白配方基本上是非水溶性的,以及使用该牙科托盘来使牙齿变白的方法。 牙齿美白制剂主要由疏水性聚合物和过氧化物或产生过氧化物的化合物组成。 优选地,疏水性聚合物是有机硅树脂和有机硅氧烷的缩合产物。 牙托被形成为包围牙齿的前表面和后表面。 牙科托盘由热塑性或热固性聚合物组成。 将牙齿美白配制剂放入牙托中,并将放置在牙齿上的托盘白化。 这是足够的时间来至少部分地美白牙齿。 这可以是约0.5小时至2小时或更长时间。 基本上非水性牙齿美白制剂在较长时间内是有效的,因为在治疗时间内没有显着稀释或从牙盘中除去。