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    • 1. 发明专利
    • Preparation of glyoxal
    • GLYOXAL的制备
    • JPS5939843A
    • 1984-03-05
    • JP14935182
    • 1982-08-30
    • Mitsui Toatsu Chem Inc
    • TOYODA YOSHIAKIWAKIMURA KAZUOHASE TADAHARUARASHIBA NOBUMASA
    • C07C47/127B01J23/00B01J23/50B01J27/14C07B61/00C07C45/00C07C45/38C07C67/00
    • Y02P20/52
    • PURPOSE: To prepare glyoxal in high yield, by the vapor-phase oxication of ethylene glycol in the presence of a catalyst comprising a silver catalyst and a reaction inhibitor comprising phosphorus or a phosphorus compound.
      CONSTITUTION: Glyoxal is prepared by the vapor-phase oxidation of ethylene glycol. The process is performed by contacting a gas containing ethylene glycol and molecular oxygen with a silver catalyst (preferably crystalline silver having a particle size of 0.1W2.5mm and obtained by electrolysis) at a high temperature of about 450W650°C in the presence of phosphorus or a phosphorus compound (preferably methyl phosphite, ethyl phosphite, methyl phosphate, ethyl phosphate, etc.). The amount of the phosphorus or phosphorus compound is preferably 1W 50ppm expressed in terms of phosphorus.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:通过在含有银催化剂的催化剂和包含磷或磷化合物的反应抑制剂存在下,通过乙二醇的气相氧化制备乙二醛。 构成:乙二醛通过乙二醇的气相氧化制备。 该方法通过使含有乙二醇和分子氧的气体与约450-650℃的高温下的银催化剂(优选粒径为0.1-2.5mm的结晶银,并通过电解获得)接触进行 磷或磷化合物(优选亚磷酸甲酯,亚磷酸乙酯,磷酸甲酯,磷酸乙酯等)的存在。 磷或磷化合物的量优选以磷表示为1-50ppm。
    • 2. 发明专利
    • Production of silane
    • 生产硅烷
    • JPS59128393A
    • 1984-07-24
    • JP5883
    • 1983-01-05
    • Mitsui Toatsu Chem Inc
    • TOYODA YOSHIAKIIWAO TETSUYAWAKIMURA KAZUOHASE TADAHARUKIDO OSAMUKITANO NOBUHIRO
    • C01B33/04C07F7/12
    • PURPOSE: To obtain the titled compound useful as a synthetic raw material, etc., in high yield, without producing by-products, by adding a specific amount of an alkyl-Al halide to a composition composed of an alkyl-Al hydride, trialkyl-Al and fine Al powder, and reducing polyhalosilane using said mixture.
      CONSTITUTION: A composition composed mainly of (A) an alkylaluminum hydride and containing (B) a trialkylaluminum and (C) fine aluminum powder is added with (D) an alkylaluminum halide of formula AlR
      n X
      3-n (R is 1W10C alkyl; n is 0, 1 or 1.5; X is halogen). The amount of the component (D) is less than 1.8 times the amount necessary to convert the whole component (B) in the composition to dialkylaluminum monohalide but sufficient to decrease the residual amount of the component (B) in the composition to ≤10mol% of the component (A). The objective compound can be obtained by reducing a polyhalosilane with the above mixture.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:通过向由烷基铝氢化物组成的组合物中添加特定量的烷基铝卤化物,以高产率获得用作合成原料等的标题化合物,而不产生副产物 -Al和细Al粉末,并使用所述混合物还原多卤硅烷。 组成:主要由(A)烷基铝氢化物和含(B)三烷基铝和(C)细铝粉末组成的组合物中加入(D)式AlRnX3-n(R为1-10C烷基; n为 为0,1或1.5; X为卤素)。 组分(D)的量小于将组合物中的全部组分(B)转化为一卤化二烷基铝所需的量的1.8倍,但足以将组合物中组分(B)的残留量降低至<= 10mol 组分(A)的%。 可以通过用上述混合物还原多卤硅烷来获得目标化合物。
    • 3. 发明专利
    • Preparation of glyoxal from ethylene glycol
    • 从乙二醇制备GLYOXY
    • JPS5955846A
    • 1984-03-31
    • JP16600082
    • 1982-09-25
    • Mitsui Toatsu Chem Inc
    • TOYODA YOSHIAKIHASE TADAHARUARASHIBA NOBUMASA
    • C07C47/127C07C45/00C07C45/78C07C67/00
    • PURPOSE: To carry out the purification of the aqueous solution of glyoxal obtained by the vapor-phase oxidation of ethylene glycol, economically, by removing the formaldehyde from the solution by distillation, and decoloring the solution and/or removing the metallic ion from the solution with a cation exchange resin.
      CONSTITUTION: Glyoxal obtained by the vapor-phase oxidation (3) of ethylene glycol is recovered (5) as an aqueous solution, and distilled to remove formaldehyde (11). By this process, the content of odorous formaldehyde is suppressed below the standard level and at the same time, the aqueous solution is concentrated to reduce the amount of the solution to be treated. The concentrated solution is then subjected to the decoloring process (15) and/or the removing process (16) of the metallic ion with a cation exchange resin to remove the color developed by the preceding heating process or eliminate the metallic ions exising in the reaction product as impurities or dissolved from the metallic material of the apparatus during the process. A purified glyoxal (23) can be prepared effectively and economically by this process.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:为了进行通过乙二醇气相氧化获得的乙二醛水溶液的纯化,经济上通过蒸馏从溶液中除去甲醛,并从溶液中脱色和/或除去金属离子 与阳离子交换树脂。 构成:以乙二醇的气相氧化(3)获得的乙二醛作为水溶液回收(5),蒸馏除去甲醛(11)。 通过该方法,将恶臭甲醛的含量抑制在标准水平以下,并且同时浓缩水溶液以减少待处理溶液的量。 然后用阳离子交换树脂对浓缩溶液进行脱色处理(15)和/或金属离子的除去工序(16),除去由前述加热工序显影的颜色,或者消除反应中产生的金属离子 产品作为杂质或在该过程中从设备的金属材料中溶解。 通过该方法可以有效和经济地制备纯化的乙二醛(23)。
    • 4. 发明专利
    • Manufacture of polychloro silane
    • 聚氯硅烷的制造
    • JPS59184720A
    • 1984-10-20
    • JP5798683
    • 1983-04-04
    • Mitsui Toatsu Chem Inc
    • TOYODA YOSHIAKIWAKIMURA KAZUOHASE TADAHARUKIDO OSAMUKITANO NOBUHIRO
    • C01B33/107
    • PURPOSE: To increase the reaction yield, and to prevent the loss caused by scattering the particles of staring materials and the product by specifying the introducing condition of a chlorine-contg. gas into the particle-fixed layer of a reactor when an alloy of metal and Si, and Si particles are chlorinated at a high temp.
      CONSTITUTION: An alloy of a metal such as calcium silicon, magnesium silicon, ferrosilicon and Si or Si particles are charged into a reactor having a stirrer for mixing powder to form a fixed layer. The thicknesss of the layer can be chosen at will if the layer has a certain degree of thickness so as to be easily mixed by the stirrer. A chlorine-contg. gas is introduced in such a condition that the fixed layer is not fluidized and particles are not accompanied. The fixed layer is mixed continuously or intermittently by above-mentioned stirrer to carry out chlorination by a solid-gas reaction.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:提高反应产率,并通过指定氯气的引入条件来防止由于起泡物质和产物的散射而引起的损失。 当金属和Si和Si颗粒的合金在高温下氯化时,气体进入反应器的颗粒固定层。 构成:将金属如硅钙,镁硅,硅铁和Si或Si颗粒的合金装入具有用于混合粉末以形成固定层的搅拌器的反应器中。 如果该层具有一定的厚度以便通过搅拌器容易地混合,则可以随意选择该层的厚度。 氯气 在固定层不流化并且不伴随颗粒的条件下引入气体。 固定层通过上述搅拌器连续或间歇地混合,通过固体气体反应进行氯化。
    • 5. 发明专利
    • Treatment of synthetic liquid for chlorination containing polychlorosilane
    • 用于含有聚氯乙烯的氯化合成液的处理
    • JPS59116119A
    • 1984-07-04
    • JP22389882
    • 1982-12-22
    • Mitsui Toatsu Chem Inc
    • TOYODA YOSHIAKIWAKIMURA KAZUOHASE TADAHARUKIDO OSAMUKITANO NOBUHIRO
    • C01B33/107
    • PURPOSE: To inactivate smoothly a solid substance ignitable under a shock produced as a by-product when a synthetic liq. for chlorination contg. polychlorosilanes is treated, by bringing the solid substance into contact with HF.
      CONSTITUTION: When an alloy consisting of a metal and Si such as Ca-Si, Mg- Si or ferrosilicon or Si itself is chlorinated at a high temp., a synthetic liq. for chlorination contg. various polychlorosilanes is obtd. The synthetic liq. is liq. at ordinary temp. When part of the synthetic liq. contacts with water or wet air, a white solid substance ignitable under a shock is inevitably produced as a by-product in a manufacturing apparatus or on the surface of the apparatus. The solid substance is brought into contact with gaseous HF or an aqueous HF soln. The solid substance is inactivated, and the danger of ignition can be avoided.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:使合成物质在产生副产物的冲击下平稳地灭活固体物质。 用于氯化 通过使固体物质与HF接触来处理聚氯代硅烷。 构成:当由金属和Si组成的合金如Ca-Si,Mg-Si或硅铁或Si本身在高温下氯化时,合成液体。 用于氯化 各种聚氯代硅烷是有效的。 合成液体 是liq。 在普通的温度 当部分合成液体。 与水或湿空气接触,在冲击下可点燃的白色固体物质不可避免地作为制造设备中或设备表面上的副产物产生。 使固体物质与气态HF或HF水溶液接触。 固体物质灭活,可以避免点燃的危险。