METHOD FOR PRODUCING CALCIUM BORATE
    14.
    发明授权
    METHOD FOR PRODUCING CALCIUM BORATE 失效
    用于生产钙波拉特

    公开(公告)号:EP0857158B1

    公开(公告)日:2002-01-23

    申请号:EP96936473.6

    申请日:1996-10-16

    CPC classification number: C01B35/126

    Abstract: An improved method is provided for producing crystalline calcium hexaborate tetrahydrate, synthetic nobleite, by the reaction of boric acid and lime in an aqueous slurry. Reaction conditions include boric acid to water molar ratios of greater than 0.25:1, lime to boric acid molar ratios in the range of 0.05-0.15:1 and temperatures in the range of 85 DEG C - 105 DEG C. A novel crystalline product is produced having a unique crystal habit resulting in improved physical properties. Dehydration of this product produced a novel amorphous, anhydrous product having similar crystal habit and physical properties.

    METHOD FOR PRODUCING CALCIUM BORATE
    16.
    发明公开
    METHOD FOR PRODUCING CALCIUM BORATE 失效
    生产硼酸钙的方法

    公开(公告)号:EP0857158A1

    公开(公告)日:1998-08-12

    申请号:EP96936473.0

    申请日:1996-10-16

    CPC classification number: C01B35/126

    Abstract: An improved method is provided for producing crystalline calcium hexaborate tetrahydrate, synthetic nobleite, by the reaction of boric acid and lime in an aqueous slurry. Reaction conditions include boric acid to water molar ratios of greater than 0.25:1, lime to boric acid molar ratios in the range of 0.05-0.15:1 and temperatures in the range of 85 °C - 105 °C. A novel crystalline product is produced having a unique crystal habit resulting in improved physical properties. Dehydration of this product produced a novel amorphous, anhydrous product having similar crystal habit and physical properties.

    Abstract translation: 通过硼酸和石灰在含水浆料中反应,提供了一种用于生产结晶六硼酸盐四水合物,合成的稀土矿的改进方法。 反应条件包括硼酸与水的摩尔比大于0.25:1,石灰与硼酸的摩尔比在0.05-0.15:1范围内,温度在85℃-105℃范围内。 生产具有独特晶体习性的新颖结晶产品,导致改善的物理性质。 该产物的脱水产生了具有类似晶体习性和物理性质的新型无定形无水产物。

    METHOD FOR PRODUCING CALCIUM BORATE
    17.
    发明授权
    METHOD FOR PRODUCING CALCIUM BORATE 失效
    用于生产钙波拉特

    公开(公告)号:EP1009716B1

    公开(公告)日:2002-12-11

    申请号:EP98918436.1

    申请日:1998-04-17

    CPC classification number: C01B35/126

    Abstract: An improved method is provided for producing crystalline calcium hexaborate tetrahydrate, synthetic nobleite, by the reaction of boric acid and lime in an aqueous slurry. Reaction conditions include boric acid to water molar ratios of greater than 0.25:1, lime to boric acid molar ratios in the range of 0.05-0.15:1 and temperatures in the range of 60°-85 °C. A concentration of at least 25 % by weight undissolved solids is in the aqueous product slurry.

    NONABORATE COMPOSITIONS AND THEIR PREPARATION
    18.
    发明公开
    NONABORATE COMPOSITIONS AND THEIR PREPARATION 有权
    非离子型组合物及其制备

    公开(公告)号:EP1254075A1

    公开(公告)日:2002-11-06

    申请号:EP01904921.2

    申请日:2001-01-18

    Abstract: A family of borate compounds containing an isolated (finite) nonaborate anion with the structural formula [B9O12(OH)6]3-. Preferred amine nonaborate compounds have a resolved oxide formula of A¿2?O.3B2O3.2H2O, where A is the monovalent cation of an amine salt, such as guanidinium and imidazolium. Also provided is a method for preparing these compounds by crystallization from an aqueous solution under mild conditions without the formation of significant amounts of by-products. These compounds have potential application as precursors for the production of advanced boron nitride ceramic materials, and as flame retardants, corrosion inhibitors, and biocides.

    Abstract translation: 一族硼酸盐化合物,含有分离的(有限)非硼酸盐阴离子,结构式为[B9O12(OH)6] 3-。 优选的非壬硼酸胺化合物具有分解的氧化物A 2 O 3·B 2 O 3·2H 2 O,其中A是胺盐的单价阳离子,如胍鎓和咪唑鎓。 还提供了通过在温和条件下从水溶液中结晶而不形成大量副产物来制备这些化合物的方法。 这些化合物可用作生产先进的氮化硼陶瓷材料的前体,以及作为阻燃剂,腐蚀抑制剂和杀生物剂。

    METHOD FOR PRODUCING CALCIUM BORATE
    19.
    发明公开
    METHOD FOR PRODUCING CALCIUM BORATE 失效
    生产硼酸钙的方法

    公开(公告)号:EP1009716A1

    公开(公告)日:2000-06-21

    申请号:EP98918436.1

    申请日:1998-04-17

    CPC classification number: C01B35/126

    Abstract: An improved method is provided for producing crystalline calcium hexaborate tetrahydrate, synthetic nobleite, by the reaction of boric acid and lime in an aqueous slurry. Reaction conditions include boric acid to water molar ratios of greater than 0.25:1, lime to boric acid molar ratios in the range of 0.05-0.15:1 and temperatures in the range of 60°-85 °C. A concentration of at least 25 % by weight undissolved solids is in the aqueous product slurry.

    Abstract translation: 通过硼酸和石灰在含水浆料中反应,提供了一种用于生产结晶六硼酸盐四水合物,合成的稀土矿的改进方法。 反应条件包括硼酸与水的摩尔比大于0.25:1,石灰与硼酸的摩尔比在0.05-0.15:1的范围内和温度在60°-85℃的范围内。 含水产品浆液中浓度至少为25重量%的不溶解固体。

Patent Agency Ranking