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公开(公告)号：US06344592B1
公开(公告)日：2002-02-05
申请号：US09467212
申请日：1999-12-20
IPC分类号： C07C3118
摘要： A method of producing a highly pure trimethylolpropane from a crude trimethylolpropane obtained by a reaction of n-butyl aldehyde and formaldehyde in the presence of a basic catalyst in a two-stage process of an aldol condensation and a crossed Cannizzaro reaction. Since a high-boiling component and an inorganic salt are removed in advance from the crude trimethylolpropane, hardly removable impurities such as condensation products in the crude trimethylolpropane are changed in the subsequent heat treatment under acidic conditions to components easily removable by distillation. By distilling the heat-treated crude trimethylolpropane, a highly pure trimethylolpropane with a low content of remaining formaldehyde and a low coloring degree is easily obtained.
摘要翻译： 在碱式催化剂存在下，在醛醇缩合和交叉的坎尼扎罗反应的两阶段过程中，通过正丁醛和甲醛的反应获得的粗三羟甲基丙烷制备高纯度三羟甲基丙烷的方法。 由于预先从粗三羟甲基丙烷中除去高沸点组分和无机盐，所以在酸性条件下的后续热处理中，在粗三羟甲基丙烷中几乎不可除去的杂质如缩合产物发生变化，可以通过蒸馏容易地除去。 通过蒸馏热处理的粗三羟甲基丙烷，容易获得具有低残留甲醛含量和低着色度的高纯度三羟甲基丙烷。
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2.发明授权Method of removing organic impurities from aqueous solution of hydrogen peroxide 失效从过氧化氢水溶液中除去有机杂质的方法
公开(公告)号：US4792403A
公开(公告)日：1988-12-20
申请号：US80013
申请日：1987-07-31
申请人： Shizuo Togo , Yasuo Sugihara , Takaki Ikebe
发明人： Shizuo Togo , Yasuo Sugihara , Takaki Ikebe
IPC分类号： C01B15/013 , C01B15/02
CPC分类号： C01B15/013
摘要： A method of removing organic impurities from an aqueous solution of hydrogen peroxide, which comprises bringing an aqueous solution of hydrogen peroxide containing organic impurities into contact with a halogen-containing porous resin having a true specific gravity in the wet state of 1.1 to 1.3.
摘要翻译： 从过氧化氢水溶液中除去有机杂质的方法，其包括将含有有机杂质的过氧化氢水溶液与湿态下的真比重的含卤多孔树脂接触，为1.1〜1.3。
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公开(公告)号：US6077980A
公开(公告)日：2000-06-20
申请号：US118419
申请日：1998-07-17
摘要： A process for producing a polyhydric alcohol which comprises subjecting formaldehyde and a specific aliphatic aldehyde to an aldol condensation reaction in the presence of a base catalyst, and then subjecting the resultant reaction product to a crossed Cannizzaro reaction, while separating 2-alkenal formed as a byproduct during the aldol condensation reaction, prior to the completion of the crossed Cannizzaro reaction. Also a process for producing a polyhydric alcohol which comprises reacting formaldehyde with a 2-alkenal, such as that obtained in the aldol condensation reaction, in the presence of a base catalyst, then subjecting the resultant reaction product and a specific aliphatic aldehyde to an aldol condensation reaction, and subsequently subjecting the resultant reaction product to a crossed Cannizzaro reaction. The processes provide a polyhydric alcohol in high selectivity with a minimum excess of formaldehyde, without substantially by-producing a 2-alkenal.
摘要翻译： 一种制备多元醇的方法，其包括在碱催化剂存在下使甲醛和特定的脂族醛进行醛醇缩合反应，然后将所得反应产物进行交叉的坎尼扎罗反应，同时分离形成的二烯烃 在醛醇缩合反应期间，在交叉的Cannizzaro反应完成之前副产物。 还有一种生产多元醇的方法，它包括在碱催化剂的存在下使甲醛与醛缩醇反应得到的2-烯醛反应，然后将得到的反应产物和特定的脂族醛进行醛醇 缩合反应，随后使得到的反应产物进行交叉的坎尼扎罗反应。 该方法以高选择性提供最少过量的甲醛的多元醇，而基本上不产生2-烯醛。
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公开(公告)号：US5840994A
公开(公告)日：1998-11-24
申请号：US820080
申请日：1997-03-19
CPC分类号： C07C41/01
摘要： A process for producing ditrimethylolpropane which comprises reacting trimethylolpropane, 2-ethylacrolein, and formaldehyde in the presence of a basic catalyst. Ditrimethylolpropane is produced efficiently and industrially advantageously.
摘要翻译： 一种制备二羟甲基丙烷的方法，其包括在碱性催化剂存在下使三羟甲基丙烷，2-乙基丙烯醛和甲醛反应。 双三羟甲基丙烷在工业上有利地产生。
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公开(公告)号：US6080896A
公开(公告)日：2000-06-27
申请号：US302058
申请日：1999-04-29
摘要： A process for producing a polyhydric alcohol with high selectivity by subjecting formaldehyde and a specific aliphatic aldehyde to an aldol condensation reaction in the presence of a base catalyst, and then subjecting the resultant reaction product to a crossed Cannizzaro reaction, while reacting a solution containing a 2-substituted-2-alkanal, formed as a byproduct during the aldol condensation reaction, with water or formaldehyde in the presence of the base catalyst, and thereafter reacting the resultant mixture with the aliphatic aldehyde.
摘要翻译： 一种通过在碱性催化剂的存在下使甲醛和特定的脂族醛进行醛醇缩合反应，以高选择性制造多元醇的方法，然后使所得反应产物进行交叉的坎尼扎罗反应，同时使含有 在醛醇缩合反应中作为副产物形成的2-取代-2-链烷醛与水或甲醛在碱催化剂存在下反应，然后使所得混合物与脂族醛反应。
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公开(公告)号：US5608121A
公开(公告)日：1997-03-04
申请号：US533513
申请日：1995-09-25
CPC分类号： C07C29/38
摘要： There is disclosed a process for producing a polyhydric alcohol which comprises reacting an aliphatic aldehyde with formaldehyde in the presence of a base compound consisting essentially of a hydrogencarbonate and a carbonate which have been formed by the oxidation or hydrolysis of a formic acid salt, in particular, the process according to the above process wherein a formic acid salt which has been by-produced by the reaction of an aliphatic aldehyde with formaldehyde is oxidized or hydrolyzed in the presence of a noble metal catalyst or a nickel catalyst in a reductive state to form a base compound consisting essentially of a hydrogencarbonate and a carbonate and this base compound is circulated through the reaction of the aldehyde and formaldehyde and is reused as the base compound. The above process enables easy and highly efficient production of high quality polyhydric alcohols substantially without by-producing a formic acid salt with a low value-added.
摘要翻译： 公开了一种生产多元醇的方法，该方法包括使脂族醛与甲醛在碱性化合物的存在下反应，所述碱性化合物主要由碳酸氢盐和碳酸酯组成，其通过甲酸盐的氧化或水解形成，特别是 ，根据上述方法的方法，其中通过脂族醛与甲醛的反应副产生的甲酸盐在还原状态的贵金属催化剂或镍催化剂存在下被氧化或水解形成 基本上由碳酸氢盐和碳酸盐组成的碱性化合物，该碱性化合物通过醛和甲醛的反应循环，并重复使用作为碱性化合物。 上述方法能够容易且高效地生产高品质的多元醇，基本上不产生具有低附加值的甲酸盐。
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