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。

    Process for manufacturing terephthalic acid by oxidation of paraxylene
    13.
    发明授权
    Process for manufacturing terephthalic acid by oxidation of paraxylene 失效
    通过对二甲苯氧化制备对苯二甲酸的方法

    公开(公告)号:US4145560A

    公开(公告)日:1979-03-20

    申请号:US676818

    申请日:1976-04-14

    CPC classification number: C07C51/265

    Abstract: Process for manufacturing a benzene carboxylic acid by oxidation of an alkyl substituted benzene, and in particular for manufacturing terephthalic acid by oxidation of paraxylene, in which said benzene carboxylic acid, in solution in an aliphatic monocarboxylic acid, such as acetic acid, is oxidized by means of a gas containing molecular oxygen at a temperature T from 80.degree. to 260.degree. C. under a pressure from 2 to 30 kg/cm.sup.2, in the presence of a transition metal compound, in at least one reactor whose internal wall is maintained during the whole reaction time at a temperature, in .degree.C., from T - 10 to T + 100.

    Abstract translation: 通过烷基取代的苯的氧化制造苯羧酸的方法,特别是通过氧化对二甲苯制造对苯二甲酸的方法,其中在羧酸脂肪族单羧酸如乙酸中的溶液中的所述苯羧酸被氧化,由 在过渡金属化合物的存在下,在2-30kg / cm 2的压力下,在温度T为80-260℃的气体中含有分子氧的气体在至少一个反应器中,内壁保持在 整个反应时间在温度,℃,从T-10到T + 100。

    Device for connecting a pipe that is intended for heating/or cooling a pressurized reactor and said reactor
    16.
    发明授权
    Device for connecting a pipe that is intended for heating/or cooling a pressurized reactor and said reactor 失效
    用于连接用于加热/或冷却加压反应器和所述反应器的管道的装置

    公开(公告)号:US06824747B2

    公开(公告)日:2004-11-30

    申请号:US09730794

    申请日:2000-12-07

    Abstract: Device for connecting a heat exchange pipe (4), whereby said pipe (4) is positioned between walls (11) that are located on both sides of pipe (4), intended for heating and/or cooling a reactor, whose internal pressure is considerably higher than the atmospheric pressure and than the pressure that prevails inside said pipe (4), and said reactor, whereby said device comprises a series of cooperating means that comprise: means for connecting this pipe (4) and jacket (2a) of said reactor, whereby said means comprise a packing box (21, 22, 23), a flange (28) that is attached to jacket (2a) of the reactor by means of a joint (18), a bellows (25) that is placed between packing box (21, 22, 23) and said flange (28) to ensure a relatively flexible connection between pipe (4) and jacket (2a) of the reactor. FIG. 3 to be published.

    Abstract translation: 用于连接热交换管(4)的装置,其中所述管(4)位于位于管(4)两侧的壁(11)之间,用于加热和/或冷却反应器的内部压力 明显高于大气压力,而不是在所述管道(4)内部的压力和所述反应器,由此所述装置包括一系列协同装置,其包括:用于将所述管道(4)和所述管道(4)的护套(2a)连接的装置, 反应器,其中所述装置包括一个包装箱(21,22,23),一个凸缘(28),其通过接头(18)连接到反应器的夹套(2a),一个波纹管(25) 在包装箱(21,22,23)和所述凸缘(28)之间,以确保反应器的管道(4)和护套(2a)之间的相对柔性的连接。 3发表。

    Reverse emulsion aliphatic alkylation process with catalyst-olefin
premixing
    17.
    发明授权
    Reverse emulsion aliphatic alkylation process with catalyst-olefin premixing 失效
    反相乳液脂肪族烷基化方法与催化烯烃预混合

    公开(公告)号:US5969206A

    公开(公告)日:1999-10-19

    申请号:US785041

    申请日:1997-01-17

    CPC classification number: C07C2/62 C07C2527/054 C07C2527/1206

    Abstract: The invention concerns a process for the alkylation of at least one isoaffin selected from the group formed by isobutane and isopentane by at least one olefin containing 2 to 6 carbon atoms per molecule in the presence of a liquid acid catalyst, the process comprising mixing a feed comprising the olefin to be converted with an effluent comprising a major portion of isoparaffin in a first mixing zone, and forming an emulsion of said catalyst in a hydrocarbon effluent comprising a major portion of isoparaffin in an emulsifying zone, said effluent constituting the continuous phase of the emulsion thus formed, then mixing a major portion of the emulsion of acid in hydrocarbon effluent with a major portion of the diluted feed comprising the olefin in a second mixing zone, followed by carrying out the majority of the reaction in a reaction zone which is supplied by the major portion of said mixture.

    Abstract translation: 本发明涉及在液体酸催化剂存在下,通过至少一种含有2-6个碳原子的烯烃在异丁烷和异戊烷中形成的至少一种异构烷烃的烷基化方法,该方法包括混合进料 包括在第一混合区域中用包含大部分异链烷烃的流出物转化的烯烃,并且在包含乳化区中的主要部分异链烷烃的烃流出液中形成所述催化剂的乳液,所述流出物构成连续相 由此形成的乳液,然后将大部分酸性乳液在烃流出物中与主要部分的稀释进料在第二混合区中混合,然后在反应区中进行大部分反应,反应区是 由所述混合物的主要部分供应。

    Oxidization of an oxidizable charge in the gaseous phase and a reactor
for implementing this method
    19.
    发明授权
    Oxidization of an oxidizable charge in the gaseous phase and a reactor for implementing this method 失效
    气相中可氧化电荷的氧化和用于实施该方法的反应器

    公开(公告)号:US5037619A

    公开(公告)日:1991-08-06

    申请号:US507507

    申请日:1990-04-11

    Abstract: An oxidizable charge is oxidized in a gaseous phase reaction. The oxidizable charge and an oxidizing gas flow simultaneously and separately through a distribution zone made of a ceramic material. In at least a part of the distribution zone, the oxidizable charge and the oxidizing gas flow through a multiplicity of passages of a dimension so small that any flame resulting from oxidation of the oxidizable charge will be quenched. The oxidizable charge and oxidizing gas are then mixed in a mixing zone made from a ceramic material defining a multiplicity of spaces with passages having a dimension comparable to the dimension of the passages in the distribution zone. The mixture of gases then flows through a reaction zone made from a ceramic material defining another multiplicity of passages having dimensions comparable to those in the distribution zone. The distance between each of the distribution, mixing and reaction zones is also so small that any flame resulting from oxidation of the oxidizable charge will be quenched.

    Abstract translation: 可氧化的电荷在气相反应中被氧化。 可氧化的电荷和氧化性气体流动同时且分开地通过由陶瓷材料制成的分布区域。 在分配区域的至少一部分中,可氧化电荷和氧化气体流过多个尺寸小的通道,使得由可氧化电荷的氧化产生的任何火焰都将被淬灭。 然后将可氧化的电荷和氧化气体在由限定多个空间的陶瓷材料制成的混合区中混合,通道具有与分配区中的通道的尺寸相当的尺寸。 气体混合物然后流过由陶瓷材料制成的反应区,该反应区限定了与分配区相当的尺寸的多个通道。 分配,混合和反应区域之间的距离也很小,使得可氧化的电荷的氧化产生的任何火焰都将被淬火。

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