Process for extruding and acid treating clay for improved filtration
    72.
    发明授权
    Process for extruding and acid treating clay for improved filtration 失效
    用于挤出和酸处理粘土以改进过滤的方法

    公开(公告)号:US4847226A

    公开(公告)日:1989-07-11

    申请号:US7713

    申请日:1987-01-28

    申请人: William Alexander

    发明人: William Alexander

    CPC分类号: B01J20/12

    摘要: A method of extruding clay and then treating the clay with acid to beneficiate the clay for increased capacity of filtration of oil-soluble colorant compounds from oil. The clay is first extruded through one or more die openings to align some of the clay platelets and to form the clay into cylindrical pellets. The extruded clay pellets are then acid treated, either before or after grinding, in an aqueous acid solution to form an acid slurry of the clay. The acid slurry of the clay is agitated for a time sufficient and at a temperature sufficient so that the acid reacts with a portion of the clay and, thereafter, the acid treated clay is separated from the acid solution; the clay then is washed to remove most of the acid solution from the clay; filtered and thereafter dried.

    Fluorinated phyllosilicate and method
    73.
    发明授权
    Fluorinated phyllosilicate and method 失效
    氟化页硅酸盐和方法

    公开(公告)号:US4836954A

    公开(公告)日:1989-06-06

    申请号:US136359

    申请日:1987-12-22

    摘要: There is disclosed a fluorinated phyllosilicate material and method of producing such material. The material has fluoride ions chemically bonded to a natural phyllosilicate in part at least by exchange with hydroxyl ions. The method comprises exposing a phyllosilicate to a source of fluoride ions, either gaseous, aqueous fluoride solution, or a volatile solid, and chemically bonding flouride ions to the phyllosilicate structure. The fluorinated material may be heated to a temperature in the range of 100.degree.-1000.degree. C., preferably 300.degree.-800.degree. C. to dehydrate the material. Heating at 800.degree. C. may create new crystal phases, such as sellaite (MgF.sub.2) or fluorite (CaF.sub.2).

    摘要翻译: 公开了氟化页硅酸盐材料及其制造方法。 该材料的氟离子部分至少与羟基离子的交换部分化学键合到天然页硅酸盐。 该方法包括将页硅酸盐暴露于氟离子源,气态,氟化水溶液或挥发性固体,并将氟离子化学键合到页硅酸盐结构。 可以将氟化材料加热至100-1000℃,优选300-800℃的温度,使材料脱水。 在800℃下加热可能产生新的晶相,如矾土(MgF2)或萤石(CaF2)。

    Randomly interstratified clays
    74.
    发明授权
    Randomly interstratified clays 失效
    随机分层粘土

    公开(公告)号:US4687521A

    公开(公告)日:1987-08-18

    申请号:US666614

    申请日:1984-10-30

    申请人: Paul H. Nadeau

    发明人: Paul H. Nadeau

    摘要: Randomly interstratified clay in synthesized by:(i) saturating (replacing all the exchangeable cations of) a first clay with alkali metal ions (preferably Na.sup.+ or Li.sup.+), removing any excess alkali metal ions, and forming the saturated clay into a suspension containing no suspended particles exceeding 10.sup.-7 m equivalent spherical diameter,(ii) saturating a second clay with alkali metal ions (preferably Na.sup.+ or Li.sup.+), removing any excess alkali metal ions, and forming the saturated clay into a suspension containing no suspended particles exceeding 10.sup.-7 m equivalent spherical diameter,(iii) mixing the suspensions from (i) and (ii) to form a mixed suspension, and(iv) sedimenting and optionally drying the mixed suspension, the sediment being the synthetic randomly interstratified clay.A wider range of synthetic clay compositions is thereby made available for use as catalysts, sorbents etc.

    摘要翻译: 通过以下方式合成的随机层间粘土:(i)用碱金属离子(优选Na +或Li +)使第一粘土饱和(替换所有可交换阳离子),除去任何过量的碱金属离子,并将饱和粘土形成悬浮液, 悬浮颗粒超过10-7m当量球形直径,(ii)用碱金属离子(优选Na +或Li +)使第二粘土饱和,除去过量的碱金属离子,并将饱和粘土形成悬浮颗粒超过10 (iii)将来自(i)和(ii)的悬浮液混合以形成混合悬浮液,和(iv)将混合悬浮液沉淀并任选地干燥,沉淀物是合成的随机层状粘土。 因此,更广泛的合成粘土组合物可用作催化剂,吸附剂等。