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1. 发明授权

US4607126A Process for the preparation of glyoxal, alkylglyoxals and acetals thereof 失效
标题翻译：乙二醛，烷基乙二醛及其缩醛的制备方法
公开(公告)号：US4607126A
公开(公告)日：1986-08-19
申请号：US682019
申请日：1984-12-17
申请人： Alexander Sajtos
发明人： Alexander Sajtos
IPC分类号： C07C47/02 , B01J23/42 , C07B61/00 , C07C45/00 , C07C45/40 , C07C45/42 , C07C45/51 , C07C47/127 , C07C47/198 , C07C49/175 , C07C49/185 , C07C67/00 , C07C45/53
CPC分类号： C07C45/40 , C07C45/515
摘要： The invention relates to a process for the preparation of glyoxal, alkylglyoxals and acetals thereof by reacting .alpha.,.beta.-unsaturated dialkylacetals with the equivalent amount of ozone and subsequently subjecting the ozonization products to catalytic hydrogenation, the peroxide-containing ozonization solution being fed continuously into a suspension of the hydrogenation catalyst, while a peroxide content of not more than 0.1 mole/liter is maintained, and cleaving the ozonization products by reduction, after which the dialkylacetals formed in the hydrogenation are, if desired, cleaved to give glyoxal or alkylglyoxals.
摘要翻译：本发明涉及通过使α，β-不饱和二烷基缩醛与等量的臭氧反应制备乙二醛，烷基乙二醛和缩醛的方法，随后使臭氧化产物进行催化氢化，将含过氧化物的臭氧化溶液连续进料氢化催化剂的悬浮液，同时保持不超过0.1摩尔/升的过氧化物含量，并通过还原裂解臭氧化产物，之后如果需要，氢化产生的二烷基缩醛被切割得到乙二醛或烷基乙二醛。

2. 发明授权

US4769464A Process for the preparation of monocarbonyl or biscarbonyl compounds 失效
标题翻译：制备单羰基或双羰基化合物的方法
公开(公告)号：US4769464A
公开(公告)日：1988-09-06
申请号：US681904
申请日：1984-12-17
申请人： Alexander Sajtos
发明人： Alexander Sajtos
IPC分类号： C07D211/48 , C07B41/06 , C07C41/50 , C07C45/00 , C07C45/40 , C07C45/41 , C07C45/59 , C07C47/02 , C07C47/12 , C07C47/198 , C07C47/20 , C07C47/28 , C07C47/38 , C07C47/52 , C07C47/542 , C07C47/544 , C07C49/04 , C07C49/12 , C07C49/20 , C07C67/00 , C07C67/313 , C07C69/003 , C07C69/67 , C07C69/716 , C07C313/00 , C07C315/04 , C07C317/24 , C07D213/48 , C07D213/50
CPC分类号： C07C45/40 , C07C201/12 , C07C315/00 , C07C45/59 , C07C47/02 , C07C47/12 , C07C47/198 , C07C47/542 , C07C47/544 , C07C49/12 , C07C67/313 , C07D213/48
摘要： The invention relates to a process for the preparation of monocarbonyl or biscarbonyl compounds by reacting organic carbon compounds having one or more olefinic or aromatic double bonds in the molecule with the equivalent amount of ozone and by subsequently catalytically hydrogenating the ozonization products, wherein the peroxide-containing ozonization solution is fed continuously into a suspension of the hydrogenation catalyst in a lower aliphatic alcohol, while a peroxide content of not more than 0.1 mole/l is maintained, and the ozonization products are continuously cleaved reductively to give the corresponding carbonyl compounds.
摘要翻译：本发明涉及通过使分子中具有一个或多个烯属或芳族双键的有机碳化合物与等量的臭氧反应并随后催化氢化臭氧化产物来制备单羰基或双羰基化合物的方法，其中过氧化物 - 将含有臭氧化的溶液连续加入到低级脂肪醇中的氢化催化剂的悬浮液中，同时保持不超过0.1摩尔/升的过氧化物含量，并且臭氧化产物被还原性地连续裂解以得到相应的羰基化合物。

3. 发明授权

US07169950B2 Method for producing monocarbonyl compounds or biscarbonyl compounds or hydroxyl compounds 失效
标题翻译：生产单羰基化合物或双羰基化合物或羟基化合物的方法
公开(公告)号：US07169950B2
公开(公告)日：2007-01-30
申请号：US10469306
申请日：2002-02-13
申请人： Alexander Sajtos , Engelbert Kloimstein , Curt Zimmermann
发明人： Alexander Sajtos , Engelbert Kloimstein , Curt Zimmermann
IPC分类号： C07C69/66 , C07C47/00 , C07C45/00
CPC分类号： C07D213/48 , C07B41/06 , C07C41/50 , C07C45/40 , C07C67/313 , C07C315/04 , C07C47/19 , C07C47/198 , C07C49/433 , C07C47/544 , C07C69/716 , C07C317/24 , C07C43/307
摘要： The invention relates to a method for producing monocarbonyl compounds or biscarbonyl compounds or hydroxyl compounds by ozonizing, unsaturated organic carbon compounds that, per molecule, have one or more olefinic or aromatic double bonds, which can be cleaved by ozone, and by subsequently processing the ozonization products. According to the inventive method, unsaturated organic carbon compounds that, per molecule, have one or more olefinic or aromatic double bonds, which can be cleaved by ozone, are: (a) in 1 to 2 steps, continuously reacted with ozone in stoichiometric quantities or in excess while using counter educt currents and being in an organic solvent or in an aqueous solution inside a device, which consists of one to two absorption apparatuses, of devices for carrying away reaction heat, and of devices for separating the gas and liquid phases, and; (b) the peroxides resulting therefrom are, according to reaction parameters from step (a), converted into the corresponding monocarbonyl compounds or biscarbonyl compounds or hydroxyl compounds either by continuous or discontinuous hydrogenation, oxidation or heating.
摘要翻译：本发明涉及通过臭氧化不饱和有机碳化合物生产单羰基化合物或双羰基化合物或羟基化合物的方法，每分子具有一个或多个可被臭氧切割的烯属或芳族双键，并且随后将臭氧化产品。根据本发明的方法，每分子具有一个或多个可被臭氧裂解的烯属或芳族双键的不饱和有机碳化合物是：（a）以1至2个步骤与化学计量的臭氧连续反应或者在使用反向流动电流并且在有机溶剂中或在由一至两个吸收装置组成的装置内的水溶液中用于携带反应热的装置以及用于分离气相和液相的装置，和（b）根据来自步骤（a）的反应参数，由此产生的过氧化物通过连续或不连续氢化，氧化或加热转化成相应的单羰基化合物或双羰基化合物或羟基化合物。

4. 发明授权

US5068417A Process for the continuous preparation of glyoxylic acid 失效
标题翻译：连续制备GLYOXYLIC酸的方法
公开(公告)号：US5068417A
公开(公告)日：1991-11-26
申请号：US530966
申请日：1990-05-25
申请人： Alexander Sajtos , Engelbert Kloimstein , Karl Hollinger , Lorenz Farnlettner
发明人： Alexander Sajtos , Engelbert Kloimstein , Karl Hollinger , Lorenz Farnlettner
IPC分类号： C07C51/09 , C07C59/153
CPC分类号： C07C51/09
摘要： A process for continuous preparation of a concentrated aqueous solution of glyoxylic acid by hydrolysis of glyoxylic acid ester hemiacetals, wherein glyoxylic acid ester hemiacetals are treated with steam in countercurrent in a reactor cascade.
摘要翻译：通过水解乙醛酸酯半缩醛连续制备浓缩的乙醛酸水溶液的方法，其中乙醛酸酯半缩醛在反应器级联中以蒸汽处理。

5. 发明授权

US5015760A Process for the preparation of glyoxylic acid and glyoxylic acid derivatives 失效
标题翻译：乙醛酸和乙醛酸衍生物的制备方法
公开(公告)号：US5015760A
公开(公告)日：1991-05-14
申请号：US331026
申请日：1989-03-29
申请人： Alexander Sajtos
发明人： Alexander Sajtos
IPC分类号： C07C67/475 , C07C27/00 , C07C27/02 , C07C51/00 , C07C51/09 , C07C51/34 , C07C59/153 , C07C59/305 , C07C67/00 , C07C67/333 , C07C69/67 , C07C69/708
CPC分类号： C07C51/34 , C07C67/333
摘要： Preparation of glyoxylic acid or derivatives thereof of the formula ##STR1## in which R denotes an alkyl radical with 1 to 10 C atoms and R.sub.1 denotes an alkyl radical with 1 to 4 C atoms, by ozonolysis of a dialkyl maleate, in which the alkyl radicals each have 1 to 10 C atoms, with the equivalent amount of ozone in an aliphatic alcohol of the formula R.sub.1 OH, and subsequent catalytic hydrogenation, in which the ozonolysis product is continuously introduced into a suspension of the hydrogenation catalyst in the alcohol of the formula R.sub.1 OH such that the peroxide content of the hydrogenation solution is not more than 0.1 mole/liter during the hydrogenation. Glyoxylic acid can be obtained from the resulting acetals of the formula I by hydrolysis.
摘要翻译：制备下式的乙醛酸或其衍生物：其中R表示具有1至10个C原子的烷基，R 1表示具有1至4个C原子的烷基，通过马来酸二烷基酯的臭氧分解，在其烷基各自具有1至10个C原子，在式R 1 OH的脂族醇中具有等量的臭氧，随后催化氢化，其中将臭氧分解产物连续引入氢化催化剂在醇中的悬浮液中的式R 1 OH，使得在氢化期间氢化溶液的过氧化物含量不超过0.1摩尔/升。可以通过水解从得到的式I的缩醛得到乙醛酸。

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