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1. 发明授权

US4950801A Process for producing alpha-hydroxycarboxylic acid amide 失效
标题翻译： α-羟基羧酸酰胺的制备方法
公开(公告)号：US4950801A
公开(公告)日：1990-08-21
申请号：US456312
申请日：1989-12-26
申请人： Shuji Ebata , Hiroyuki Hirayama , Hirofumi Higuchi , Toshio Kondo , Koichi Kida
发明人： Shuji Ebata , Hiroyuki Hirayama , Hirofumi Higuchi , Toshio Kondo , Koichi Kida
IPC分类号： C07C231/06
CPC分类号： C07C231/065
摘要： Disclosed is a process for producing .alpha.-hydroxy-carboxylic acid amide represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are as defined in the specification, by a catalytic hydration reaction of cyanohydrin represented by the formula (II): ##STR2## which comprises using a modified manganese dioxide containing one or more of an alkali metal element and an alkaline earth element in an amount of 0.05 to 0.5 based on the manganese element in terms of atomic ratio.

2. 发明授权

US5175366A Process for producing a denaturated manganese dioxide catalyst for the hydration reaction of cyanohydrins 失效
标题翻译：制备用于氰醇水合反应的变性二氧化锰催化剂的方法
公开(公告)号：US5175366A
公开(公告)日：1992-12-29
申请号：US744954
申请日：1991-08-14
申请人： Shuji Ebata , Hiroyuki Hirayama , Hirofumi Higuchi , Koichi Kida
发明人： Shuji Ebata , Hiroyuki Hirayama , Hirofumi Higuchi , Koichi Kida
IPC分类号： B01J23/34 , C07C231/06
CPC分类号： C07C231/065 , B01J23/34
摘要： A process for preparing an amide by hydrating a cyanohydrin with a denatured manganese dioxide catalyst. The catalyst is prepared by reacting an aqueous permanganate solution and an aqueous manganese (II) compound solution in an acidic aqueous solution at a temperature of 70.degree. C. to 150.degree. C.
摘要翻译：通过用变性二氧化锰催化剂使氰醇水合制备酰胺的方法。该催化剂是通过使高锰酸盐水溶液和含水锰酸（II）化合物溶液在酸性水溶液中在70℃至150℃的温度下反应制备的。

3. 发明授权

US5061675A Process for producing a denaturated manganese dioxide catalyst for the hydration reaction of cyanohydrins 失效
标题翻译：生产用于氰化氢水解反应的脱硫二氧化硅催化剂的方法
公开(公告)号：US5061675A
公开(公告)日：1991-10-29
申请号：US542835
申请日：1990-06-25
申请人： Shuji Ebata , Hiroyuki Hirayama , Hirofumi Higuchi , Koichi Kida
发明人： Shuji Ebata , Hiroyuki Hirayama , Hirofumi Higuchi , Koichi Kida
IPC分类号： B01J23/34 , C07B43/06 , C07C231/06
CPC分类号： B01J23/34 , C07C231/065
摘要： A process for producing a denatured manganese dioxide for the hydration reaction of cyanohydrins comprising reacting an aqueous permanganate salt solution and an aqueous manganese (II) compound in an acidic aqueous solution at a temperature of 70.degree. C. to 130.degree. C. is disclosed. The manganese dioxide catalyst obtained by the process exhibits a high activity over a long period in the preparation of an amide by the hydration of the corresponding cyanohydrin.

4. 发明授权

US5087737A Process for producing methyl methacrylate 失效
公开(公告)号：US5087737A
公开(公告)日：1992-02-11
申请号：US529910
申请日：1990-05-29
申请人： Hirofumi Higuchi , Koichi Kida , Shuji Ebata
发明人： Hirofumi Higuchi , Koichi Kida , Shuji Ebata
IPC分类号： C07C69/54 , C07C67/20 , C07C67/22 , C07C231/06
CPC分类号： C07C231/06 , C07C67/20 , Y02P20/582
摘要： Disclosed is a process for producing methyl methacrylate which comprises:(I) a step of reacting prussic acid and acetone to form acetonecyanhydrin;(II) a step of hydrating the acetonecyanhydrin obtained in the step (I) to form .alpha.-hydroxyisobutyric acid amide;(III) a step of dehydrating the .alpha.-hydroxyisobutyric acid amide obtained in the step (II) to form methacrylic acid amide;(IV) a step of reacting the methacrylic acid amide obtained in the step (III) and methyl formate to form methyl methacrylate and formamide; and(V) a step of dehydrating formamide separated from the product obtained in the step (IV) to form prussic acid and recycling said prussic acid as a starting material in the step (I).The process produces methyl methacrylate with high selectivity without undesirable by-product such as ammonium sulfate.

5. 发明授权

US4983757A Process for production of carboxylic acid esters and formamide 失效
标题翻译：羧酸酯和甲酰胺的生产方法
公开(公告)号：US4983757A
公开(公告)日：1991-01-08
申请号：US500520
申请日：1990-03-28
申请人： Jiro Ishikawa , Hirofumi Higuchi , Shuji Ebata , Koichi Kida
发明人： Jiro Ishikawa , Hirofumi Higuchi , Shuji Ebata , Koichi Kida
IPC分类号： B01J31/02 , C07B61/00 , C07C67/20 , C07C69/54 , C07C69/675 , C07C231/08 , C07C231/10 , C07C233/03
CPC分类号： C07C231/08
摘要： Carboxylic acid esters and formamide are efficiently obtained for reacting carboxylic acid amides and formic acid esters, or carboxylic acid amides, alcohols and carbon monoxide in the presence of an alkaline earth metal oxide catalyst.

6. 发明授权

US5587349A Process for preparing silica-titania catalyst 失效
标题翻译：制备二氧化硅 - 二氧化钛催化剂的方法
公开(公告)号：US5587349A
公开(公告)日：1996-12-24
申请号：US366812
申请日：1994-12-30
申请人： Mariko Abe , Shuji Ebata , Takafumi Abe , Hirofumi Higuchi
发明人： Mariko Abe , Shuji Ebata , Takafumi Abe , Hirofumi Higuchi
IPC分类号： B01J21/06 , B01J21/08 , B01J37/03 , C07C67/08
CPC分类号： B01J21/063 , B01J21/08 , B01J37/03 , C07C67/08
摘要： A process for preparing a silica-titania catalyst by adding an acidic solution containing a silicon compound such as sodium silicate and a titanium compound such as titanium sulfate dissolved therein to a solution of a compound such as ammonium bicarbonate to bring about co-precipitation, in which the acidic solution is a highly concentrated nitric acid-acidic or sulfuric acid-acidic solution, and a ratio of the dissolved titanium compound in the acidic solution is regulated in a certain range.According to this process, a catalyst capable of exerting a high performance in an esterification reaction and the like can be efficiently obtained.
摘要翻译：一种二氧化硅 - 二氧化钛催化剂的制备方法，该方法是将含有硅化钠等硅化合物的酸性溶液和溶解在其中的硫酸钛等钛化合物的酸性溶液加入到碳酸氢铵等化合物的溶液中，进行共沉淀，酸性溶液是高浓度硝酸 - 酸性或硫酸 - 酸性溶液，并且将溶解的钛化合物在酸性溶液中的比例调节在一定范围内。根据该方法，可以有效地获得能够在酯化反应等中发挥高性能的催化剂。

7. 发明授权

US5439661A Process for producing hydrogen cyanide 失效
标题翻译：生产氰化氢的方法
公开(公告)号：US5439661A
公开(公告)日：1995-08-08
申请号：US330202
申请日：1994-10-27
申请人： Takafumi Abe , Shuji Ebata , Kazuhiro Sugamura , Taiji Matsuzaki , Hirofumi Higuchi
发明人： Takafumi Abe , Shuji Ebata , Kazuhiro Sugamura , Taiji Matsuzaki , Hirofumi Higuchi
IPC分类号： C01C3/02
CPC分类号： C01C3/0204
摘要： There is disclosed a process for efficiently producing hydrogen cyanide at a reaction temperature of preferably 250.degree. to 550.degree. C. by a catalytic dehydrative reaction of formamide which comprises employing as a catalyst, a manganese oxide (MnO) and/or a magnesium oxide (MgO) each modified with an alkali metal (Na, K, Rb, Cs, etc. ). The above process is capable of producing hydrogen cyanide at an enhanced conversion efficiency of formamide and at a high selectivity while minimizing the by-production of ammonia. The use of the catalyst comprising as a principal component, MnO modified with an alkali metal is particularly effective in prolonging its service life and enables a long-term stable operation.
摘要翻译：公开了通过甲酰胺的催化脱氢反应在优选250-550℃的反应温度下有效地生产氰化氢的方法，该方法包括使用氧化锰（MnO）和/或氧化镁（MnO） MgO），其用碱金属（Na，K，Rb，Cs等）修饰。上述方法能够以提高甲酰胺的转化效率并以高选择性产生氰化氢，同时最小化氨的副产物。使用以碱金属为主成分的催化剂MnO特别有效延长其使用寿命，能够长期稳定运行。

8. 发明授权

US5023390A Process for production of 2,6-dimethylnaphthalene 失效
公开(公告)号：US5023390A
公开(公告)日：1991-06-11
申请号：US405966
申请日：1989-09-12
申请人： Takafumi Abe , Shuji Ebata , Hiroshi Machida , Koichi Kida
发明人： Takafumi Abe , Shuji Ebata , Hiroshi Machida , Koichi Kida
IPC分类号： B01J21/04 , B01J23/86 , B01J27/12 , C07B61/00 , C07C1/00 , C07C1/20 , C07C1/24 , C07C5/41 , C07C15/24 , C07C45/00 , C07C45/46 , C07C45/49 , C07C49/76 , C07C67/00
CPC分类号： C07C45/46 , C07C1/24 , C07C15/24 , C07C45/49 , C07C5/412 , C07C5/417 , C07C2521/04 , C07C2521/12 , Y02P20/52
摘要： A process for production of 2,6-dimethylnaphthalene is disclosed; comprising the steps: (1) an acylation step where 2,4-dimethylisobutyrophenone is produced from m-xylene, propylene and carbon monoxide: (2) a hydrogenation step where the carbonyl group of the above 2,4-dimethylisobutyrophenone is hydrogenated: and (3) a dehydrogenation and cyclization step where the above hydrogenated product is subjected to dehydrogenation and cyclization to produce the desired 2,6-dimethylnaphthalene. The process enables efficiently producing high quality or high purity 2,6-dimethylnaphthalene.

9. 发明授权

US5703272A Process for preparing a carboxylic acid ester 失效
标题翻译：羧酸酯的制备方法
公开(公告)号：US5703272A
公开(公告)日：1997-12-30
申请号：US707135
申请日：1996-09-03
申请人： Mariko Abe , Shuji Ebata , Takafumi Abe , Hirofumi Higuchi
发明人： Mariko Abe , Shuji Ebata , Takafumi Abe , Hirofumi Higuchi
IPC分类号： B01J21/06 , B01J21/08 , B01J37/03 , C07C67/08 , C07C69/02
CPC分类号： B01J21/063 , B01J21/08 , B01J37/03 , C07C67/08
摘要： A process for preparing a carboxylic acid ester which includes subjecting a carboxylic acid and an alcohol or a phenol to an esterification reaction in the presence of a silica-titania catalyst. The silica-titania catalyst is prepared by adding an acidic solution containing a silicon compound and a titanium compound dissolved therein to a solution of a basic compound to bring about co-precipitation, in which the acidic solution is a nitric acid-acidic solution or a sulfuric acid-acidic solution, a ratio of the amount (gram equivalent) of nitric acid or sulfuric acid to the amount (mol) of the silicon compound in the acidic solution is 0.5 to 50 and the amount of the titanium compound in the acidic solution is such that a ratio of titania (TiO.sub.2) in the silica-titania catalyst is 1 to 50% by weight.
摘要翻译：一种制备羧酸酯的方法，包括在二氧化硅 - 二氧化钛催化剂的存在下使羧酸和醇或酚进行酯化反应。二氧化硅 - 二氧化钛催化剂通过将含有硅化合物和溶解在其中的钛化合物的酸性溶液加入到碱性化合物的溶液中来进行共沉淀，其中酸性溶液是硝酸 - 酸性溶液或硫酸 - 酸性溶液，酸性溶液中的硝酸或硫酸的量（克当量）与硅化合物的量（摩尔）的比例为0.5〜50，酸性溶液中钛化合物的量使得二氧化硅 - 二氧化钛催化剂中的二氧化钛（TiO 2）的比例为1〜50重量％。

10. 发明授权

US5087750A Process for producing alpha-hydroxyisobutyric acid amide 失效
标题翻译：生产α-羟基丁酸酰胺的方法
公开(公告)号：US5087750A
公开(公告)日：1992-02-11
申请号：US586802
申请日：1990-09-24
申请人： Akitomo Uda , Shuji Ebata , Hirofumi Higuchi
发明人： Akitomo Uda , Shuji Ebata , Hirofumi Higuchi
IPC分类号： B01J23/34 , C07B61/00 , C07C231/06 , C07C235/06
CPC分类号： C07C231/065
摘要： A process for producing .alpha.-hydroisobutyric acid amide by a hydration reaction of acetonecyanohydrin in the presence of a catalyst containing manganese dioxide as a main component, and also in the presence of an oxidizing agent. In accordance with the process, the service life of the catalyst is increased, and the .alpha.-hydroxyisobutyric acid amide is produced in a high yield.

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