Process for the preparation of boric oxide by hydrolysis of methyl
borate and its use in the oxidation of alcohol-saturated hydrocarbons
    11.
    发明授权
    Process for the preparation of boric oxide by hydrolysis of methyl borate and its use in the oxidation of alcohol-saturated hydrocarbons 失效
    通过氢化甲基硼酸盐制备氧化硼的方法及其在醇饱和烃的氧化中的应用

    公开(公告)号:US5235117A

    公开(公告)日:1993-08-10

    申请号:US765276

    申请日:1991-09-25

    CPC classification number: C07C29/52 C01B35/1036 C01B35/1045 C07C2101/14

    Abstract: For preparing at least one boric oxide in an anhydrous or hydrated form and of general formula B.sub.2 O.sub.3, xH.sub.2 O, in which x is a number from 0 to 3, a methyl borate hydrolyzate comprising boric oxide and methanol is introduced into a distillation column is introduced the product from, at least one compound (preferably a hydrocarbon such as, e.g., 2,3-dimethyl butane or 2-methyl pentane) forming a heteroazeotrope with methanol, said heteroazaeotrope having a boiling point below that of the azeotrope formed by methyl borate with methanol and at least one compound having a boiling point higher than that of methyl borate, said compound not forming an azeotrope with a boiling point below that of said heteroazeotrope and then at the head of the column said heteroazeotrope is recovered and at the bottom of the column a suspension containing at least one boric oxide.A description is also given of a process for the oxidation of at least one saturated hydrocarbon into a product incorporating the corresponding alcohol wherein oxidation is carried out with oxygen in the presence of a boric oxide with. The oxidation product is hydrolyzed into orthoboric acid and alcohol, which is recovered by separation from the organic phase. The aqueous phase containing the boric acid is fed into a methyl borate formation zone and the methyl borate is recovered in the form of its azeotrope with methanol. The recovery of the boric oxide from said azeotrope is performed in accordance with the aforementioned process, the recovered boric oxide being recycled to the oxidation stage.

    Abstract translation: 为了制备至少一种无水或水合形式的氧化硼和通式B 2 O 3,xH 2 O,其中x为0至3的数,将包含氧化硼和甲醇的硼酸甲酯水解产物引入蒸馏塔 与来自与甲醇形成杂共聚物的至少一种化合物(优选例如2,3-二甲基丁烷或2-甲基戊烷的烃)形成的产物,所述杂氮杂异动物的沸点低于由硼酸甲酯形成的共沸物的沸点, 甲醇和沸点高于硼酸甲酯的沸点的至少一种化合物,所述化合物不形成沸点低于所述杂共生物的沸点的共沸物,然后在塔的头部回收所述杂共生物,并在其底部 柱中含有至少一种氧化硼的悬浮液。 还描述了将至少一种饱和烃氧化成掺入相应的醇的产物的方法,其中氧化在氧化硼存在下用氧气进行氧化。 将氧化产物水解成原硼酸和醇,通过与有机相分离回收。 将含有硼酸的水相加入到硼酸甲酯形成区中,以与甲醇共沸的形式回收硼酸甲酯。 根据上述方法从所述共沸物中回收氧化硼,回收的氧化硼被循环到氧化阶段。

    Production of boric oxide
    14.
    发明授权
    Production of boric oxide 失效
    生产氧化硼

    公开(公告)号:US5651949A

    公开(公告)日:1997-07-29

    申请号:US611929

    申请日:1996-03-06

    CPC classification number: C01B35/1036

    Abstract: Amorphous boric oxide-containing product having about 80 to 90% B.sub.2 O.sub.3 is produced by heating boric acid to an elevated temperature of about 180.degree. to 220.degree. C. to dehydrate the boric acid and form a molten glass which is cooled to a solid glassy product. The solid glass can be comminuted to produce a particulate product. Preferably the boric acid is heated at about 195.degree. to 205.degree. C. The process is readily adapted to a continuous process in which the boric acid is continuously fed through a heated reactor-mixer such as a Kneadermaster mixer or Discotherm mixer. The molten glassy product is cooled to form a solid glassy product which can be comminuted to a desirable particle size range.

    Abstract translation: 通过将硼酸加热至约180℃至220℃的高温,使硼酸脱水并形成熔融玻璃,将其冷却至固体玻璃状产物,制备具有约80至90%B 2 O 3的无定形含硼氧化物的产物 。 固体玻璃可以粉碎以产生颗粒产物。 优选地,硼酸在约195℃至205℃下加热。该方法容易适用于其中硼酸通过加热的反应器 - 混合器如Kneadermaster混合器或Discotherm混合器连续进料的连续方法。 将熔融的玻璃状产物冷却以形成固体玻璃状产物,其可粉碎至所需的粒度范围。

    PRODUCTION OF BORIC OXIDE
    17.
    发明申请
    PRODUCTION OF BORIC OXIDE 审中-公开
    生产氧化硼

    公开(公告)号:WO1996034826A1

    公开(公告)日:1996-11-07

    申请号:PCT/US1996005927

    申请日:1996-04-29

    CPC classification number: C01B35/1036

    Abstract: Amorphous boric oxide-containing product having about 80 to 90 % B2O3 is produced by heating boric acid to an elevated temperature of about 180 DEG to 220 DEG C to dehydrate the boric acid and form a molten glass which is cooled to a solid glassy product. The solid glass can be comminuted to produce a particulate product. Preferably the boric acid is heated at about 195 DEG to 205 DEG C. The process is readily adapted to a continuous process in which the boric acid is continuously fed through a heated reactor-mixer such as a Kneadermaster mixer or Discotherm mixer. The molten glassy product is cooled to form a solid glassy product which can be comminuted to a desirable particle size range.

    Abstract translation: 通过将硼酸加热至约180℃至220℃的升高温度使硼酸脱水并形成冷却至固体玻璃状产物的熔融玻璃来制备具有约80至90%B 2 O 3的无定形含氧化硼的产物。 固体玻璃可以粉碎以产生颗粒产物。 优选地,硼酸在约195℃至205℃下加热。该方法容易适用于其中硼酸通过加热的反应器 - 混合器如Kneadermaster混合器或Discotherm混合器连续进料的连续方法。 将熔融的玻璃状产物冷却以形成固体玻璃状产物,其可粉碎至所需的粒度范围。

    Method for preparing boron fertilizer
    19.
    发明授权
    Method for preparing boron fertilizer 有权
    硼肥的制备方法

    公开(公告)号:US08946120B2

    公开(公告)日:2015-02-03

    申请号:US13327724

    申请日:2011-12-15

    Applicant: Lin Gan

    Inventor: Lin Gan

    CPC classification number: C05D9/02 C01B35/1036 C01B35/1045

    Abstract: A method for preparing a boron fertilizer, including: (1) heating boric acid to a temperature of 180-200° C., maintaining the temperature for 20-30 min for dehydration of the boric acid to yield pyroboric acid; and (2) cooling down the pyroboric acid to a temperature of 40-60° C., crushing, and screening to yield a powdered, weakly acidic, high-content boron fertilizer. The method is energy-saving, environmentally friendly, and low in cost. The resulting boron fertilizer is weakly acidic, fast in dissolution rate, and has excellent in compounding performance

    Abstract translation: 一种制备硼肥的方法,包括:(1)将硼酸加热至180-200℃,保持温度20-30分钟,使硼酸脱水得到焦硼酸; 和(2)将焦硼酸冷却至40-60℃的温度,进行粉碎和筛选以产生粉末状,弱酸性的高含量硼肥料。 该方法节能环保,成本低。 所得硼肥呈弱酸性,溶解速度快,复合性能优异

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