Method for producing calcite-type calcium carbonate single crystal
    2.
    发明授权
    Method for producing calcite-type calcium carbonate single crystal 失效
    方解石型碳酸钙单晶的制备方法

    公开(公告)号:US6048396A

    公开(公告)日:2000-04-11

    申请号:US886126

    申请日:1997-07-03

    IPC分类号: C30B7/10 C30B7/00 C30B29/10

    CPC分类号: C30B7/00 C30B29/10

    摘要: This invention provides a method for producing calcite-type calcium carbonate single crystal available for optical elements, which can be carried out under relatively low temperature and low pressure conditions. The crystal growth process which comprises; a first step of filling a sealed pressure container of an autoclave with solvent and calcium carbonate as a raw material for growth, a second step of dissolving the starting rate in the solvent under predetermined conditions of pressure and temperature, a third step of crystallizing the calcium carbonate on a seed crystal suspended in the upper portion of the pressure container, on account of the difference of solubility caused by temperature gradient in the container; the method is characterized by that the aqueous solution of ammonium salt of mono-carboxylic acid is used as the solvent. The ammonium salt of mono-carboxylic acid is selected from the ammonium salts of carboxylic acid of whose alkyl group has 1 to 6 carbons, such as ammonium salts of acetic acid, propionic acid, butyric acid, valeric acid, hexanoic acid (equal to caproic acid), and heputanic acid (equal to enantic acid).

    摘要翻译: 本发明提供了一种可用于光学元件制备方解石型碳酸钙单晶的方法,该方法可在较低温度和低压条件下进行。 晶体生长过程包括: 以溶剂和碳酸钙作为生长原料填充高压釜的密封压力容器的第一步骤,在预定的压力和温度条件下将起始速率溶解在溶剂中的第二步骤,使钙 碳酸盐悬浮在压力容器的上部的晶种上,由于容器中温度梯度引起的溶解度差; 该方法的特征在于使用单羧酸铵盐水溶液作为溶剂。 单羧酸铵盐选自其烷基具有1至6个碳原子的羧酸的铵盐,例如乙酸,丙酸,丁酸,戊酸,己酸的铵盐(等于己酸 酸)和氢氧化钠(等于酸性酸)。

    METHOD FOR PRODUCING CALCITE SINGLE CRYSTAL
    5.
    发明申请
    METHOD FOR PRODUCING CALCITE SINGLE CRYSTAL 审中-公开
    生产计算单晶的方法

    公开(公告)号:US20140020618A1

    公开(公告)日:2014-01-23

    申请号:US13984332

    申请日:2012-02-08

    IPC分类号: C30B7/08

    CPC分类号: C30B7/08 C30B29/10

    摘要: The objective of the present invention is to provide a method for producing a calcite single crystal which is appropriately fine in a large scale with no difficulty. The method for producing a calcite single crystal according to the present invention is characterized in comprising the steps of mixing raw material calcium carbonate with an ammonium nitrate aqueous solution to obtain a raw material mixed liquid, wherein pH of the ammonium nitrate aqueous solution is not less than 7.0 and not more than 8.0, a concentration of the ammonium nitrate aqueous solution is not less than 2 M, and a concentration of calcium carbonate in the raw material mixed liquid is not less than 4 g/L and not more than 16 g/L; heating the raw material mixed liquid at not less than 125° C.; and then gradually cooling the raw material mixed liquid.

    摘要翻译: 本发明的目的是提供一种难以大规模地适当精细地生产方解石单晶的方法。 根据本发明的方解石单晶的制造方法的特征在于包括以下步骤:将原料碳酸钙与硝酸铵水溶液混合,得到原料混合液,其中硝酸铵水溶液的pH值不小于 7.0以上8.0以下,硝酸铵水溶液的浓度为2m以上,原料混合液中的碳酸钙浓度为4g / L以上16g / L以下, L; 在不低于125℃下加热原料混合液; 然后逐渐冷却原料混合液体。

    Single-crystal fine powder of sulfide or sulfide complex and method for preparing the same
    7.
    发明授权
    Single-crystal fine powder of sulfide or sulfide complex and method for preparing the same 有权
    硫化物或硫化物络合物的单晶细粉末及其制备方法

    公开(公告)号:US08999877B2

    公开(公告)日:2015-04-07

    申请号:US12677595

    申请日:2008-09-12

    摘要: This invention provides a fine particle composite comprising fine powder of a sulfide or sulfide complex comprising a given element. The fine particle composite is obtained by a method for producing a fine particle composite comprising fine powder of a sulfide or sulfide complex comprising at least one element selected from the group consisting of molybdenum (Mo), rhodium (Rh), ruthenium (Ru), and rhenium (Re). Such method comprises steps of: preparing a solvent mixture from at least one compound containing an element selected from among molybdenum (Mo), rhodium (Rh), ruthenium (Ru), rhenium (Re), and sulfur (S); and subjecting the solvent mixture to a hydrothermal or solvothermal reaction. The resulting fine particle composite comprises fine particles of a sulfide or sulfide complex comprising at least one element selected from the group consisting of molybdenum (Mo), rhodium (Rh), ruthenium (Ru), and rhenium (Re).

    摘要翻译: 本发明提供一种细颗粒复合材料,其包含包含给定元素的硫化物或硫化物络合物的细粉末。 微粒复合体是通过包含选自钼(Mo),铑(Rh),钌(Ru),钌(Ru), 和铼(Re)。 该方法包括以下步骤:从至少一种含有选自钼(Mo),铑(Rh),钌(Ru),铼(Re)和硫(S)中的元素的化合物制备溶剂混合物; 并将溶剂混合物进行水热或溶剂热反应。 所得的微粒复合体包含由钼(Mo),铑(Rh),钌(Ru)和铼(Re)组成的组中选出的至少一种元素的硫化物或硫化物络合物的微粒。

    FLUORESCENT POWDER, PROCESS FOR PRODUCING THE SAME, AND LIGHT EMITTING DEVICE, DISPLAY DEVICE, AND FLUORESCENT LAMP CONTAINING FLUORESCENT POWDER
    8.
    发明申请
    FLUORESCENT POWDER, PROCESS FOR PRODUCING THE SAME, AND LIGHT EMITTING DEVICE, DISPLAY DEVICE, AND FLUORESCENT LAMP CONTAINING FLUORESCENT POWDER 失效
    荧光粉,其制造方法,发光装置,显示装置和含有荧光粉的荧光灯

    公开(公告)号:US20100079057A1

    公开(公告)日:2010-04-01

    申请号:US12523350

    申请日:2008-01-18

    IPC分类号: H01J1/62 C09K11/54

    摘要: According to the present invention, a fluorescent powder composed mainly of an acicular or fibrous zinc oxide single crystal with an aspect ratio of 5 or higher is produced by the following steps: a step of producing a raw material solution selected from the group consisting of a raw material solution (A) that is an alkali solution containing zing ions, a raw material solution (B) that is a solution containing zinc ions and ions of dopant element, and a mixed solution of the raw material solution (A) and the raw material solution (B); and a hydrothermal reaction step wherein a hydrothermal reaction of the mixed solution is carried out in a hermetically sealed vessel at a subcritical or supercritical temperature and at a subcritical or supercritical pressure. A zinc oxide single crystal powder can be produced at low cost without the need for a pulverization step or a similar step and high-density orientation can be realized by such crystal powder. Such crystal powder is most suitable for light emitting devices, display devices, fluorescent lamps, and the like.

    摘要翻译: 根据本发明,通过以下步骤制造主要由长径比为5以上的针状或纤维状氧化锌单晶构成的荧光粉末:制造选自以下的原料溶液的工序: 作为含有锌离子的碱溶液的原料溶液(A),作为含有锌离子的溶液的原料溶液(B)和掺杂剂元素的离子,以及原料溶液(A)和原料溶液 材料溶液(B); 和水热反应步骤,其中混合溶液的水热反应在亚临界或超临界温度和亚临界或超临界压力下在密封容器中进行。 可以低成本地生产氧化锌单晶粉末,而不需要粉碎步骤或类似步骤,并且可以通过这种结晶粉末实现高密度取向。 这种结晶粉末最适用于发光装置,显示装置,荧光灯等。

    Method for Synthesizing Unsaturated Carboxylic Acid and/or Derivative of Same
    10.
    发明申请
    Method for Synthesizing Unsaturated Carboxylic Acid and/or Derivative of Same 有权
    合成不饱和羧酸和/或其衍生物的方法

    公开(公告)号:US20120277467A1

    公开(公告)日:2012-11-01

    申请号:US13503780

    申请日:2010-10-25

    IPC分类号: C07C51/347

    摘要: An appropriate catalyst is found for synthesis of an unsaturated carboxylic acid and/or a derivative thereof using as a raw material compound a hydroxycarboxylic acid and/or a derivative thereof that can easily be synthesized from a polysaccharide such as biomass-derived cellulose, and an efficient method for synthesizing the unsaturated carboxylic acid and/or the derivative thereof is provided. This method is a method for synthesizing an unsaturated carboxylic acid and/or a derivative thereof, wherein an apatite compound is used as a catalyst to synthesize the unsaturated carboxylic acid and/or the derivative thereof from a biomass-derived hydroxycarboxylic acid and/or a derivative thereof by a dehydration reaction.

    摘要翻译: 发现合适的催化剂用于合成不饱和羧酸和/或其衍生物,使用可以容易地由多糖如生物质衍生的纤维素合成的羟基羧酸和/或其衍生物作为原料化合物,和 提供了合成不饱和羧酸和/或其衍生物的有效方法。 该方法是用于合成不饱和羧酸和/或其衍生物的方法,其中使用磷灰石化合物作为催化剂,从生物质衍生的羟基羧酸和/或其衍生物合成不饱和羧酸和/或其衍生物 其衍生物通过脱水反应。