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9 条记录 (耗时 0.022 秒)

    Process for preparing D-mannitol
    1.
    发明授权
    Process for preparing D-mannitol 失效
    D-甘露糖醇的制备方法

    公开(公告)号：US4083881A

    公开(公告)日：1978-04-11

    申请号：US749623

    申请日：1976-12-13

    申请人： Motohiro Takemura ,  Mochihiro Iijima ,  Yoshiaki Tateno ,  Yuji Osada ,  Hiroyuki Maruyama

    发明人： Motohiro Takemura ,  Mochihiro Iijima ,  Yoshiaki Tateno ,  Yuji Osada ,  Hiroyuki Maruyama

    IPC分类号： C12P19/24 ,  B01J23/00 ,  B01J25/00 ,  C07B61/00 ,  C07C27/00 ,  C07C29/132 ,  C07C29/141 ,  C07C29/145 ,  C07C31/26 ,  C07C67/00 ,  C07H1/00 ,  C07H3/02 ,  C12P7/18 ,  C07C29/00

    CPC分类号： C07C31/26 ,  C07H3/02

    摘要： A D-glucose solution is added molybdic acid compound thereto and heated at a temperature of 110.degree.-160.degree. C with pH 2.0-4.5 to perform epimerizing reaction of D-glucose, and thereby 30-36%, based on the D-glucose, of D-mannose is formed. To the epimerized mixture thus obtained is further added glucose-isomerase to perform enzymatic isomerizing reaction of D-glucose remaining in the epimerized mixture, thereby 46% based on the remaining D-glucose is converted into D-fructose. The epimerized mixture or enzymatically isomerized mixture is subjected to catalytic hydrogenation under high pressure, and thereby is produced D-mannitol at high yield based on the initial D-glucose.

    摘要翻译： 向D-葡萄糖溶液中加入钼酸化合物，在110〜160℃的温度下，用pH2.0〜4.5进行加热，以进行D-葡萄糖的差向异构化反应，从而基于D-葡萄糖进行30-36％ 的D-甘露糖。 向得到的差向异构体混合物中进一步添加葡萄糖异构酶，进行残留在差向异构化混合物中的D-葡萄糖的酶促异构化反应，由此将剩余D-葡萄糖的46％转化为D-果糖。 将差向异构化的混合物或酶促异构化的混合物在高压下进行催化氢化，从而基于初始D-葡萄糖以高产率生产D-甘露糖醇。

    Process for preparing L-rhamnose
    2.
    发明授权
    Process for preparing L-rhamnose 失效
    制备L-鼠李糖的方法

    公开(公告)号：US4758283A

    公开(公告)日：1988-07-19

    申请号：US945073

    申请日：1986-12-22

    申请人： Motohiro Takemura ,  Mochihiro Iljima ,  Yoshiaki Tateno ,  Naoki Okamoto ,  Masaaki Fuse

    发明人： Motohiro Takemura ,  Mochihiro Iljima ,  Yoshiaki Tateno ,  Naoki Okamoto ,  Masaaki Fuse

    IPC分类号： C07H3/08 ,  C07H1/08 ,  C07H3/02 ,  C12P19/02 ,  C13K13/00 ,  C13K1/00 ,  C13D1/00 ,  C13D1/14 ,  C13J1/06

    CPC分类号： C13K13/00 ,  C07H3/02 ,  C12P19/02

    摘要： This invention relates to a process for readily and efficiently preparing L-rhamnose with the use of a marine alga belonging to the family Monostromaceae, Ulvales.According to the process of the present invention, rhamnan sulfate is extracted from a marine alga belonging to the family Monostromaceae such as Monostroma nitidium Wittrock and the obtained extract is hydrolyzed by adding acid(s) thereto followed by heating or treating thereof with a cation exchange resin followed by heating to thereby give a solution containing free L-rhamnose.Since the solution thus obtained contains a large amount of salts, the removal of these salts is significantly important in the preparation of L-rhamnose. In the present invention, an effective process therefor is combined with a conventional method by using an ion exchange resin to thereby establish an efficient desalting process.Further it is effective to elevate the purity of L-rhamnose by adding baker's yeast, which selectively ferments various sugars, to the solution containing L-rhamnose.

    Process for manufacturing crystalline maltitol and crystalline mixture solid containing the same
    6.
    发明授权
    Process for manufacturing crystalline maltitol and crystalline mixture solid containing the same 失效
    制造结晶麦芽糖醇和含有它们的结晶混合物固体的方法

    公开(公告)号：US5932015A

    公开(公告)日：1999-08-03

    申请号：US888138

    申请日：1997-07-03

    申请人： Susumu Yoneda ,  Yoshiaki Tateno ,  Mitsuo Magara ,  Naoki Okamoto

    发明人： Susumu Yoneda ,  Yoshiaki Tateno ,  Mitsuo Magara ,  Naoki Okamoto

    IPC分类号： C13K7/00 ,  B01D15/08 ,  C07H15/04 ,  C13D3/14

    CPC分类号： C07H15/04

    摘要： Provides an economical method for manufacturing high-value added crystalline maltitol and crystalline mixture solid containing this by means of a process wherein a syrup with a maltose content of 40 to 75% by weight in the solid component is subjected to catalytic hydrogenation, the sugar alcohol syrup is then subjected to chromatographic separation to produce a maltitol-containing syrup fraction with a high maltitol content in the solid component, and the maltitol-containing syrup fraction is then subjected to chromatographic separation.

    摘要翻译： 提供了一种经济的方法，用于通过以下方法制造高附加值的结晶麦芽糖醇和含有这种结晶混合物的固体组分的固体组分中麦芽糖含量为40-75％（重量）的糖浆进行催化氢化， 然后将糖浆进行色谱分离，以在固体组分中产生具有高麦芽糖醇含量的含麦芽糖醇的糖浆部分，然后对含麦芽糖醇的糖浆部分进行色谱分离。

    Raney catalyst, process for producing it and process for producing a sugar-alcohol using the same
    7.
    发明授权
    Raney catalyst, process for producing it and process for producing a sugar-alcohol using the same 失效
    阮内催化剂，其制备方法和使用其制备糖醇的方法

    公开(公告)号：US06414201B1

    公开(公告)日：2002-07-02

    申请号：US08743081

    申请日：1996-11-04

    申请人： Koshiro Shimazu ,  Yoshiaki Tateno ,  Mitsuo Magara ,  Naoki Okamoto ,  Takao Ohshima ,  Minoru Nagasawa ,  Hideki Sakamura

    发明人： Koshiro Shimazu ,  Yoshiaki Tateno ,  Mitsuo Magara ,  Naoki Okamoto ,  Takao Ohshima ,  Minoru Nagasawa ,  Hideki Sakamura

    IPC分类号： C07C3118

    CPC分类号： B01J25/02 ,  C07C29/132 ,  C07C31/26 ,  C07C31/18

    摘要： To obtain a Raney catalyst for fixed bed permitting a continuous use with a high initial activity and to produce a high purity sugar-alcohol at a low cost using the same. For this object, sugar-alcohol is produced by: using the powder type Raney catalyst made by using for the hydrogenation under the hydrogen pressure a lump form Raney catalyst made by (i) the first step for melting nickel and aluminum, (ii) the second step for obtaining quenched lump alloy by quenching droplets of said melted mixture and (iii) the third step for classifying and activating said quenched lump alloy as it is or once it is broken, collecting said lump form Raney catalyst, crushing into powder and reactivating, and hydrogenating sugars under the hydrogen pressure.

    摘要翻译： 获得用于固定床的阮内催化剂，其允许以高初始活性连续使用，并且以相同的方式以低成本生产高纯度糖醇。为此目的，通过以下方式制备糖醇：使用粉末型阮内 通过在氢气压力下氢化制得的催化剂通过（i）用于熔化镍和铝的第一步骤制备的块形式的阮内催化剂，（ii）通过淬灭所述熔融混合物的液滴获得淬火的块状合金的第二步骤和 iii）第一步骤，将所述淬火的块状合金按原样分类并一次性破碎，收集所述块状阮内催化剂，粉碎并重新活化，并在氢气压力下氢化糖。

    Process for preparing 1,4-cyclohexandicarboxylic acid
    8.
    发明授权
    Process for preparing 1,4-cyclohexandicarboxylic acid 失效
    制备1,4-环己烷二羧酸的方法

    公开(公告)号：US5430184A

    公开(公告)日：1995-07-04

    申请号：US169132

    申请日：1993-12-17

    申请人： Yoshiaki Tateno ,  Chihaya Sano ,  Kotone Tanaka ,  Mitsuo Magara ,  Naoki Okamoto ,  Kazuaki Kato

    发明人： Yoshiaki Tateno ,  Chihaya Sano ,  Kotone Tanaka ,  Mitsuo Magara ,  Naoki Okamoto ,  Kazuaki Kato

    IPC分类号： B01J23/44 ,  C07B61/00 ,  C07C51/36 ,  C07C51/43 ,  C07C51/44 ,  C07C61/09

    CPC分类号： C07C51/36 ,  C07C51/44

    摘要： An economic hydrogenation process is provided which significantly suppresses palladium catalyzer activity loss, for obtaining very high purity 1,4-CHDA through a simple operation. The process includes bringing the solution containing the hydrogenation reaction product of interest into contact with steam. The resultant products may include resins having excellent weather resistance or physical properties or high purity medical drugs. The process for preparing 1,4-cyclohexandicarboxylic acid is characterized by two consecutive steps. The first step includes the hydrogenation of a solution containing terephthalic acid in the presence of a palladium catalyzer in an acid resistant vessel or in a vessel layered with acid resistant material for preparing 1,4-cyclohexandicarboxylic acid. The second step includes contacting the solution containing 1,4-cyclohexandicarboxylic acid obtained in the first step with the steam, and extracting impurities moved to the steam.

    摘要翻译： 提供经济的氢化方法，其显着抑制钯催化剂活性损失，以通过简单的操作获得非常高纯度的1,4-CHDA。 该方法包括将含有所需氢化反应产物的溶液与蒸汽接触。 得到的产品可以包括具有优异的耐候性或物理性质的树脂或高纯度药物。 制备1,4-环己烷二羧酸的方法的特征在于两个连续的步骤。 第一步包括在耐酸容器中的钯催化剂存在下或在用耐酸材料层压制备1,4-环己烷二羧酸的容器中氢化包含对苯二甲酸的溶液。 第二步包括使第一步骤中获得的含有1,4-环己烷二羧酸的溶液与蒸汽接触，并提取移入蒸汽中的杂质。