METHOD FOR PREPARATION OF HIGH PURITY,CRYSTALLINE COBALT NITRATE FROM SPENT COBALT/SILICA CATALYST
    17.
    发明申请
    METHOD FOR PREPARATION OF HIGH PURITY,CRYSTALLINE COBALT NITRATE FROM SPENT COBALT/SILICA CATALYST 有权
    从苯乙烯/二氧化硅催化剂制备高纯度,结晶硝酸钴的方法

    公开(公告)号:US20140377153A1

    公开(公告)日:2014-12-25

    申请号:US14477909

    申请日:2014-09-05

    IPC分类号: C22B3/00

    摘要: A method for preparing crystalline cobalt nitrate. The method includes: 1) calcining a spent Co/SiO2 catalyst, cooling the calcined material to room temperature, and grinding it to yield a powder; 2) heating the powder in a fluidized bed reactor; 3) adding the heated powder into excess dilute nitric acid solution and filtering to obtain a cobalt nitrate solution; 4) adjusting the pH value of the cobalt nitrate solution to 1.5, adding a preheated oxalic acid solution, adjusting a pH value of the resulting solution to 1.5, immediately filtering the resulting solution to yield a precipitate of cobalt oxalate, washing the precipitate of cobalt oxalate to yield a neutral filtrate; 5) drying the precipitate and calcining to yield cobalt oxide; 6) dissolving the cobalt oxide in nitric acid to yield a second cobalt nitrate solution; and 7) evaporating the second cobalt nitrate solution to obtain crystalline cobalt nitrate.

    摘要翻译: 制备结晶硝酸钴的方法。 该方法包括:1)煅烧废弃的Co / SiO 2催化剂,将煅烧后的材料冷却至室温,并研磨,得到粉末; 2)在流化床反应器中加热粉末; 3)将加热的粉末加入过量的稀硝酸溶液中并过滤得到硝酸钴溶液; 4)将硝酸钴溶液的pH调节至1.5,加入预热的草酸溶液,将所得溶液的pH值调节至1.5,立即过滤所得溶液,得到草酸钴沉淀物,洗涤钴沉淀物 草酸盐,得到中性滤液; 5)干燥沉淀并煅烧产生氧化钴; 6)将氧化钴溶解在硝酸中以产生第二硝酸钴溶液; 和7)蒸发第二硝酸钴溶液以获得结晶硝酸钴。

    MESOPOROUS METAL OXIDES AND PROCESSES FOR PREPARATION THEREOF
    18.
    发明申请
    MESOPOROUS METAL OXIDES AND PROCESSES FOR PREPARATION THEREOF 有权
    多种金属氧化物及其制备方法

    公开(公告)号:US20140286846A1

    公开(公告)日:2014-09-25

    申请号:US14037107

    申请日:2013-09-25

    摘要: A process for preparing a mesoporous metal oxide, i.e., transition metal oxide, Lanthanide metal oxide, a post-transition metal oxide and metalloid oxide. The process comprises providing a micellar solution comprising a metal precursor, an interface modifier, a hydrotropic ion precursor, and a surfactant; and heating the micellar solution at a temperature and for a period of time sufficient to form the mesoporous metal oxide. A mesoporous metal oxide prepared by the above process. A method of controlling nano-sized wall crystallinity and mesoporosity in mesoporous metal oxides. The method comprises providing a micellar solution comprising a metal precursor, an interface modifier, a hydrotropic ion precursor, and a surfactant; and heating the micellar solution at a temperature and for a period of time sufficient to control nano-sized wall crystallinity and mesoporosity in the mesoporous metal oxides. Mesoporous metal oxides and a method of tuning structural properties of mesoporous metal oxides.

    摘要翻译: 一种制备介孔金属氧化物,即过渡金属氧化物,镧系元素金属氧化物,后过渡金属氧化物和准金属氧化物的方法。 该方法包括提供包含金属前体,界面改性剂,水溶助离子前体和表面活性剂的胶束溶液; 并在足以形成介孔金属氧化物的温度和一段时间内加热胶束溶液。 通过上述方法制备的介孔金属氧化物。 控制介孔金属氧化物中纳米尺寸壁结晶度和介孔度的方法。 该方法包括提供包含金属前体,界面改性剂,水溶助离子前体和表面活性剂的胶束溶液; 并在足以控制介孔金属氧化物中的纳米尺寸壁结晶度和介孔度的温度下加热胶束溶液。 介孔金属氧化物和调节中孔金属氧化物的结构特性的方法。