专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5081321A Preparation of isopropanol 失效
标题翻译：异丙酚的制备
公开(公告)号：US5081321A
公开(公告)日：1992-01-14
申请号：US464315
申请日：1990-01-12
申请人： Hiroshi Fukuhara , Fujihisa Matsunaga , Yasunori Shibuta , Toshihiro Tachi
发明人： Hiroshi Fukuhara , Fujihisa Matsunaga , Yasunori Shibuta , Toshihiro Tachi
IPC分类号： B01J25/02 , B01J8/02 , C07B61/00 , C07C29/145 , C07C31/10
CPC分类号： B01J8/025 , C07C29/145
摘要： Isopropanol is prepared through catalytic hydrogenation of acetone by feeding hydrogen gas and acetone liquid into a reactor having a fixed catalyst bed from its top to form a cocurrent gas/liquid downflow while maintaining the catalyst bed in a trickle bed state. This process can produce isopropanol at a high reaction rate in high yields using a simple reactor.

2. 发明授权

US4517387A Process for production of 2,2-bis(4-hydroxyphenyl) propane 失效
公开(公告)号：US4517387A
公开(公告)日：1985-05-14
申请号：US536029
申请日：1983-09-26
申请人： Fujihisa Matsunaga , Tadahiko Nishimura , Etsuo Miyake , Kiyotaka Banba
发明人： Fujihisa Matsunaga , Tadahiko Nishimura , Etsuo Miyake , Kiyotaka Banba
IPC分类号： C07C37/20 , C07C37/84 , C07C39/16
CPC分类号： C07C37/84 , C07C37/20 , Y02P20/582
摘要： A process for continuously producing 2,2-bis(4-hydroxyphenyl) propane having a high quality from a reaction of phenol and acetone in the presence of a hydrochloric acid containing catalyst comprising the steps of:(A) carrying out the reaction by continuously charging additional phenol, the below-mentioned circulating phenol, additional acetone, additional hydrogen chloride or hydrochloric acid, the below-mentioned circulating oily mother liquor, and the below-mentioned aqueous mother liquid into a reactor to form a reaction mixture slurry comprising the crude phenol adduct of 2,2-bis(4-hydroxyphenyl) propane in the form of crystal and two liquid phase reaction mother liquors of an oily mother liquor and an aqueous mother liquor;(B) separating the reaction mixture slurry into the crude phenol adduct of 2,2-bis(4-hydroxyphenyl) propane and the two liquid phase mother liquors after discharging the reaction mixture slurry from the reactor;(C) separating the two liquid phase mother liquors obtained in the above-mentioned step (B) into the oily mother liquor and the aqueous mother liquor, whereby the oily mother liquor is circulated as a circulating oily mother liquor to the reactor and the remaining portion of the aqueous mother liquor, after discharging a portion thereof, is circulated as a circulating aqueous mother liquor to the reactor;(D) dissolving the crude phenol adduct of 2,2-bis(4-hydroxyphenyl) propane obtained in the above-mentioned step (B) in a phenol solvent and, after neutralizing the hydrogen chloride or hydrochloric acid contained in the crude phenol adduct with a base, crystallizing and separating the phenol adduct of 2,2-bis(4-hydroxyphenyl) propane from the solution to obtain the purified phenol adduct of 2,2-bis(4-hydroxyphenyl) propane;(E) decomposing the purified phenol adduct of 2,2-bis(4-hydroxyphenyl) propane obtained in the above-mentioned step (D), on heating, to form a thermally decomposed product containing phenol and 2,2-bis(4-hydroxyphenyl) propane;(F) recovering the phenol and 2,2-bis(4-hydroxyphenyl) propane from the thermally decomposed product obtained in the above-mentioned step (E); and(G) circulating the phenol recovered in the above-mentioned step (F) to the reactor in the above-mentioned step (A) as a circulating phenol or to the above-mentioned step (D) as a phenol solvent.

3. 发明授权

US5227563A Preparation of propylene by dehydration of isopropanol in the presence of a pseudo-boehmite derived gamma alumina catalyst 失效
标题翻译：在假勃姆石衍生的γ氧化铝催化剂存在下，通过异丙醇脱水制备丙烯
公开(公告)号：US5227563A
公开(公告)日：1993-07-13
申请号：US700319
申请日：1991-05-09
申请人： Hiroshi Fukuhara , Fujihisa Matsunaga , Mitsuki Yasuhara , Shintaro Araki , Toshiyuki Isaka
发明人： Hiroshi Fukuhara , Fujihisa Matsunaga , Mitsuki Yasuhara , Shintaro Araki , Toshiyuki Isaka
IPC分类号： B01J21/04 , C07C1/24
CPC分类号： B01J21/04 , C07C1/24 , C07C2521/04 , Y02P20/52
摘要： Propylene can be prepared in high yield and selectivity by dehydrating isopropanol in the presence of a .gamma.-alumina catalyst having a mean pore diameter of from 30 to 150 .ANG. with a standard deviation (.sigma..sub.n) of from 10 to 40 .ANG. based on statistic calculation from pore diameter and pore volume.
摘要翻译：丙烯可以通过在平均孔径为30至150的γ-氧化铝催化剂的存在下脱水异丙醇而制备，基于统计学计算，标准偏差（σ）为10至40安培从孔径和孔体积。

4. 发明授权

US5079383A Method of condensing N-phenyl carbamates 失效
标题翻译：冷凝N-苯基碳酸酯的方法
公开(公告)号：US5079383A
公开(公告)日：1992-01-07
申请号：US556993
申请日：1990-07-25
申请人： Fujihisa Matsunaga , Mitsuki Yasuhara
发明人： Fujihisa Matsunaga , Mitsuki Yasuhara
IPC分类号： C07C269/06 , C07C271/20 , C07C271/58
CPC分类号： C07C269/06
摘要： A process for producing 4,4'-diphenylmethane dicarbamates through one-stage condensation by reacting N-phenyl carbamates with a methylenating agent in presence of a zinc halide, as a catalyst. 4,4'-diphenylmethane dicarbamates can be produced with high selectivity and in high yield.

5. 发明授权

US4923837A Hydrogenation catalyst 失效
标题翻译：氢化催化剂
公开(公告)号：US4923837A
公开(公告)日：1990-05-08
申请号：US286024
申请日：1988-12-19
申请人： Hiroshi Fukuhara , Fujihisa Matsunaga , Yasushi Nakashima
发明人： Hiroshi Fukuhara , Fujihisa Matsunaga , Yasushi Nakashima
IPC分类号： B01J21/16 , B01J23/46 , C07C5/11 , C10G45/52
CPC分类号： B01J23/462 , C07C5/11 , C07C2101/16 , C07C2523/46
摘要： A hydrogenation catalyst which is prepared by adsorbing ruthenium ions on a hydrotalcite (i.e. an anionic clay mineral) and/or a compound capable of conversion to a hydrotalcite structure by hydration, and then reducing said adsorbed ruthenium ions. The catalyst suitable for use in a process by which a monocyclic aromatic hydrocarbon is partially reduced to produce cyclohexene.

6. 发明授权

US4355190A Process for recovery of resorcinol from aqueous resorcinol solution containing hydroquinone 失效
标题翻译：从含氢醌的含水间苯二酚溶液中回收间苯二酚的方法
公开(公告)号：US4355190A
公开(公告)日：1982-10-19
申请号：US215123
申请日：1980-12-10
申请人： Hirohiko Nambu , Fujihisa Matsunaga , Hiroaki Nakagawa
发明人： Hirohiko Nambu , Fujihisa Matsunaga , Hiroaki Nakagawa
IPC分类号： C07C37/86 , C07C37/68
CPC分类号： C07C37/86
摘要： A process for recovery of resorcinol from an aqueous resorcinol solution containing hydroquinone which comprises oxidizing an aqueous resorcinol solution containing about 10 to about 60% by weight of resorcinol and up to about 1% by weight of hydroquinone with molecular oxygen at conditions of pH 6.5 to 9.5, followed by recovering resorcinol from the resultant oxidation product.
摘要翻译：一种从含有氢醌的含水间苯二酚溶液中回收间苯二酚的方法，其中包括使pH值为6.5至6.5的条件下，用分子氧将包含约10至约60重量％间苯二酚和至多约1重量％氢醌的含水间苯二酚溶液氧化 9.5，然后从所得氧化产物中回收间苯二酚。

7. 发明授权

US4288637A Process for preparation of aromatic hydroperoxides 失效
标题翻译：芳香族氢过氧化物的制备方法
公开(公告)号：US4288637A
公开(公告)日：1981-09-08
申请号：US143474
申请日：1980-04-24
申请人： Fujihisa Matsunaga , Yoshiyuki Shinohara , Isamu Okubo , Takayuki Nakamura , Seiichi Tanaka
发明人： Fujihisa Matsunaga , Yoshiyuki Shinohara , Isamu Okubo , Takayuki Nakamura , Seiichi Tanaka
IPC分类号： C07B61/00 , B01J27/00 , B01J31/00 , C07C39/02 , C07C67/00 , C07C407/00 , C07C409/08 , C07C409/10 , C07C409/12 , C07C179/035
CPC分类号： C07C39/02 , C07C407/00 , C07C409/08 , C07C409/10 , C07C409/12
摘要： Disclosed is a process for the preparation of aromatic hydroperoxides comprising contacting two liquid phases comprising an oily phase containing an aromatic compound having a secondary alkyl group and a basic aqueous phase under agitation with a molecular oxygen-containing gas in the presence of a copper compound catalyst such as an inorganic salt or organic acid salt of copper, thereby to oxidize the aromatic compound to a corresponding aromatic hydroperoxide, wherein the liquid phase catalytic oxidation is carried out while maintaining the catalyst concentration in the liquid phases at 0.005 to 10 ppm as the copper atom and the pH value of the basic aqueous phase at 7.6 to 10. According to this process, by adoption of the above-mentioned specific catalyst concentration and pH value in combination, the rate of oxidation of the aromatic compound is increased and the selectivity to the hydroperoxide is improved.
摘要翻译：公开了一种制备芳族氢过氧化物的方法，包括在铜化合物催化剂存在下，将含有含有仲烷基的芳族化合物的油相和搅拌下的碱性水相的两相液相与含分子氧的气体接触例如铜的无机盐或有机酸盐，从而将芳族化合物氧化成相应的芳香族氢过氧化物，其中进行液相催化氧化，同时将液相中的催化剂浓度保持在0.005〜10ppm，作为铜原子，碱性水相的pH值为7.6〜10。根据该方法，通过组合使用上述特定催化剂浓度和pH值，芳香族化合物的氧化速率提高，选择性氢过氧化物得到改善。

8. 发明授权

US4154967A Process for preparation of phenols 失效
标题翻译：苯酚的制备方法
公开(公告)号：US4154967A
公开(公告)日：1979-05-15
申请号：US794654
申请日：1977-05-06
申请人： Fujihisa Matsunaga , Hirohiko Nambu
发明人： Fujihisa Matsunaga , Hirohiko Nambu
IPC分类号： C07C37/08 , C07C37/50 , C07C37/58 , C07C39/04 , C07C37/00 , C07C39/08
CPC分类号： C07C37/08 , C07C37/50
摘要： A process for producing phenols which comprises oxidizing an aromatic hydrocarbon ring-substituted by an isopropyl group in one step in the liquid phase using molecular oxygen or a gas containing molecular oxygen in the presence or absence of a solvent, wherein the oxidation is carried out in the presence of an aromatic mercaptan having an acid dissociation constant (pKa) of less than 7.8.
摘要翻译：一种生产酚的方法，其包括在存在或不存在溶剂的情况下，使用分子氧或含有分子氧的气体，在液相中一步法氧化被异丙基取代的芳香烃环，其中氧化在存在酸解离常数（pKa）小于7.8的芳香族硫醇。

9. 发明授权

US5017729A Phenol preparation process and propylene recovery therefrom 失效
标题翻译：苯酚制备方法和丙烯回收
公开(公告)号：US5017729A
公开(公告)日：1991-05-21
申请号：US402528
申请日：1989-09-05
申请人： Hiroshi Fukuhara , Fujihisa Matsunaga
发明人： Hiroshi Fukuhara , Fujihisa Matsunaga
IPC分类号： C07C1/24 , C07C11/06 , C07C37/08 , C07C37/58 , C07C39/04 , C07C45/53 , C07C409/10
CPC分类号： C07C409/10 , C07C1/24 , C07C11/06 , C07C39/04 , C07C407/00 , C07C45/53
摘要： Phenol is produced in a recycle manner by (a) reacting benzene with propylene to synthesize cumene, (b) oxidizing the cumene of step (a) into cumene hydroperoxide, (c) acid cleaving cumene hydroperoxide into phenol and acetone, (d) hydrogenating the acetone of step (c) into isopropanol, (e) dehydrating the isopropanol of step (d) into propylene, and (f) recycling the propylene of step (e) to step (a). It is also possible to take propylene from step (e). The acetone by-product produced upon preparation of phenol is converted into propylene which is useful by itself for any other uses or recycled to the phenol producing process.

10. 发明授权

US4987260A Preparation of anilines 失效
标题翻译：苯胺的制备
公开(公告)号：US4987260A
公开(公告)日：1991-01-22
申请号：US283846
申请日：1988-12-13
申请人： Mitsuki Yasuhara , Fujihisa Matsunaga
发明人： Mitsuki Yasuhara , Fujihisa Matsunaga
IPC分类号： B01J21/04 , B01J23/78 , B01J35/10 , C07B61/00 , C07C67/00 , C07C209/00 , C07C209/18 , C07C211/46
CPC分类号： C07C209/18
摘要： An aniline is prepared by reacting a phenol with an amination agent in the presence of a specific porous .gamma.-alumina catalyst.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式