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    • 41. 发明申请
    • STABILIZED METAL NANOPARTICLES AND METHODS FOR PRODUCTION THEREOF
    • 稳定的金属纳米颗粒及其生产方法
    • US20120114521A1
    • 2012-05-10
    • US13228411
    • 2011-09-08
    • Alfred A. ZINN
    • Alfred A. ZINN
    • B22F9/20C22C9/00B82Y40/00
    • B22F1/0018B22F1/0062B22F9/24B22F2999/00B82Y30/00H05K1/097H05K3/125H05K2201/0218H05K2201/0257H05K2203/0514H05K2203/107B22F2301/10B22F2304/054
    • Processes for synthesizing metal nanoparticles, particularly copper nanoparticles, are described. The processes can involve reacting an insoluble complex of a metal salt with a reducing agent in a reaction mixture containing a primary amine first surfactant, a secondary amine second surfactant, and a diamine chelating agent third surfactant. More specifically, processes for forming copper nanoparticles can involve forming a first solution containing a copper salt, a primary amine first surfactant, a secondary amine second surfactant, and a diamine chelating agent third surfactant; allowing an insoluble complex of the copper salt to form from the first solution; combining a second solution containing a reducing agent with the insoluble complex; and forming copper nanoparticles from the insoluble complex. Such copper nanoparticles can be about 10 nm or smaller in size, more particularly about 3 nm to about 6 nm in size, and have a fusion temperature of about 200° C. or lower.
    • 描述了合成金属纳米颗粒,特别是铜纳米颗粒的方法。 该方法可以包括在含有伯胺第一表面活性剂,仲胺第二表面活性剂和二胺螯合剂第三表面活性剂的反应混合物中使金属盐的不溶性络合物与还原剂反应。 更具体地,形成铜纳米颗粒的方法可以包括形成含有铜盐,伯胺第一表面活性剂,仲胺第二表面活性剂和二胺螯合剂第三表面活性剂的第一溶液; 允许从第一溶液形成铜盐的不溶性络合物; 将含有还原剂的第二溶液与不溶性络合物组合; 并从不溶性络合物形成铜纳米颗粒。 这种铜纳米颗粒的尺寸可以为约10nm或更小,更特别地约3nm至约6nm,熔融温度为约200℃或更低。
    • 44. 发明申请
    • METHOD FOR PRODUCING GRANULAR METALLIC IRON
    • 生产颗粒金属铁的方法
    • US20110023656A1
    • 2011-02-03
    • US12937054
    • 2009-04-06
    • Kazutaka KuniiTakahiro Kudo
    • Kazutaka KuniiTakahiro Kudo
    • B22F9/20
    • C21B13/008C21B13/0046C21B13/006C21B13/105C21C5/54C21C7/076Y02P10/136Y02P10/216Y02P10/242
    • A method for producing granular metallic iron by heating and reducing a raw material mixture which includes an iron oxide-containing material, a carbonaceous reductant and a Li2O supplying material in a thermal reduction furnace, wherein the iron oxide-containing material includes a hematite-containing material, and the raw material mixture includes at least Fe, Ca, Mg, Si and Li as constituent elements in such a manner that slag which forms as a by-product during heating and reduction contains CaO, MgO, SiO2 and Li2O, has a Li2O content of 0.05% by mass or more, and the slag has a basicity [(CaO+MgO)/SiO2] in a range of from 1.5 to 1.9. This method enables granular metallic iron to be produced at a high productivity even when a hematite-containing material is used as the iron oxide-containing material.
    • 一种通过在热还原炉中加热还原包含含氧化铁的材料,碳质还原剂和Li2O供应材料的原料混合物来生产颗粒状金属铁的方法,其中含氧化铁的材料包括含赤铁矿的材料 原料混合物至少包含Fe,Ca,Mg,Si和Li作为构成元素,使得在加热和还原期间作为副产物形成的炉渣含有CaO,MgO,SiO 2和Li 2 O,具有 Li2O含量为0.05质量%以上,炉渣的碱度[(CaO + MgO)/ SiO2]为1.5〜1.9。 这种方法使得即使使用含赤铁矿的材料作为含铁氧化物的材料也能以高生产率生产粒状金属铁。