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    METHOD FOR PRODUCING CALCIUM BORATE
    2.
    发明公开
    METHOD FOR PRODUCING CALCIUM BORATE 失效
    用于生产钙波拉特

    公开(公告)号：EP0857158A4

    公开(公告)日：1998-12-23

    申请号：EP96936473

    申请日：1996-10-16

    申请人： UNITED STATES BORAX INC

    发明人： SCHUBERT DAVID M

    IPC分类号： C01B35/12

    CPC分类号： C01B35/126

    摘要： 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.

    DOPED LOW TEMPERATURE PHASE BAB2O4 SINGLE CRYSTAL THE MANUFACTURING METHOD THEREOF AND WAVE CHANGING ELEMENTS THEREFROM
    5.
    发明公开
    DOPED LOW TEMPERATURE PHASE BAB2O4 SINGLE CRYSTAL THE MANUFACTURING METHOD THEREOF AND WAVE CHANGING ELEMENTS THEREFROM 有权
    DOTIERTER TIEFTEMPERATURPHASEN-BAB2O4-EINKRISTALL，HERSTELLUNGSVERFAHRENDAFÜRUND WENENNDNDUNGSELEMENTE DARAUS

    公开(公告)号：EP2322697A1

    公开(公告)日：2011-05-18

    申请号：EP08876603.5

    申请日：2008-10-08

    申请人： Fujian Institute Of Research On The Structure Of Matter, Chinese Academy Of Sciences

    发明人： CHEN, Changzhang ,  HONG, Maochun ,  LI, Ding ,  LIN, Hainan ,  CAI, Shicong

    IPC分类号： C30B29/22 ,  C30B15/00 ,  C30B17/00 ,  H01S3/16

    CPC分类号： C30B29/22 ,  C01B33/113 ,  C01B35/10 ,  C01B35/121 ,  C01B35/126 ,  C01P2002/70 ,  C01P2002/72 ,  C09K11/647 ,  C30B9/12 ,  C30B15/00 ,  C30B15/20 ,  G02F1/0027 ,  G02F1/3551

    摘要： The present invention relates generally to the field of synthetic crystal, and more particularly, this invention relates to doped low-temperature phase barium metaborate single crystal, growth method and frequency-converter. Molten salt method was adopted. The single crystal completely overcome the shortcomings of BBO with strong deliquescence, almost no deliquescence; its frequency doubling effect and optical damage threshold has improved greatly compared with the BBO; its hardness increased significantly, the single crystal with Shore hardness of 101.3 and Mohs hardness of 6, however, BBO with Shore hardness of 71.2 and Mohs hardness of 4. From the UV-Vis region transmittance curves tests, the cut-off wavelength of the single crystal is 190nm, wavelength of absorption onset is 205nm. BBSAG is widely applied in the fields of laser and nonlinear optics, and in terms of frequency-converter of ultraviolet and deep-ultraviolet due to its excellent properties better than BBO.

    摘要翻译： 本发明一般涉及合成晶体领域，更具体地说，本发明涉及掺杂低温相偏硼酸钡单晶，生长方法和变频器。 采用熔盐法。 单晶完全克服了BBO具有强潮解性，几乎不潮解的缺点; 与BBO相比，其倍频效应和光损伤阈值大大提高; 其硬度显着增加，肖氏硬度为101.3，莫氏硬度为6的单晶，而邵氏硬度为71.2，莫氏硬度为4的BBO。从UV-Vis区透射率曲线试验，截止波长为 单晶为190nm，吸收波长为205nm。 BBSAG广泛应用于激光和非线性光学领域，由于其优于BBO的优异性能，在紫外线和深紫外线的频率转换器方面。

    Process for the preparation of precipitated borates
    10.
    发明公开
    Process for the preparation of precipitated borates 失效
    瓦尔法罕zur Herstellungausgefällter硼酸盐。

    公开(公告)号：EP0571047A1

    公开(公告)日：1993-11-24

    申请号：EP93201451.7

    申请日：1993-05-19

    申请人： BORMINE S.A.

    发明人： Beugels, Hendrik Karel Hubert Maria

    IPC分类号： C01B35/12 ,  C03C1/00 ,  C05C5/00

    CPC分类号： C03C1/00 ,  C01B35/12 ,  C01B35/126 ,  C05C5/00

    摘要： The invention relates to a process for preparing precipitated borate, starting from crude borate. Crude borates of a B₂O₃ content of at least 25% and a mole ratio of alkali and/or alkaline-earth metal oxide/B₂O₃ in the range of 0.4-0.8 are decomposed by treating them with diluted nitric acid of a concentration of at least 25%, whereafter the insoluble residues and the boric acid solution obtained are separated from each other, the desired borate is precipitated from the boric acid solution in the substantial absence of chloride, and the precipitated borate is separated, washed, dried and calcined or simultaneously dried and calcined, to obtain precipitated borate comprising inter alia in the manufacture of glass fibers and in the ceramic industry. In addition, innocuous waste materials are obtained as well as residual substances which can readily be reprocessed into useful products.

    摘要翻译： 本发明涉及从粗硼酸盐开始制备沉淀的硼酸盐的方法。 B2O3含量至少为25％的粗硼酸盐和碱金属和/或碱土金属氧化物/ B2O3的摩尔比在0.4-0.8的范围内通过用浓度至少为25的稀硝酸处理而分解 ％，然后将得到的不溶性残留物和硼酸溶液彼此分离，在基本上不含氯化物的情况下，从硼酸溶液中沉淀出所需的硼酸盐，并将沉淀的硼酸盐分离，洗涤，干燥并煅烧或同时干燥 并煅烧，得到包含<1％NaO 2 + K 2 O，<0.5％硫酸盐，SO 3和<200ppm氯的沉淀硼酸盐。 因此，可以回收具有高纯度的沉淀的硼酸盐，并且可以用作高品质的基材，特别是在玻璃纤维的制造和陶瓷工业中。 另外，还可以获得无害废物以及可以容易地再加工成有用产品的残留物质。