-
公开(公告)号:USD453717S1
公开(公告)日:2002-02-19
申请号:US29141142
申请日:2001-05-02
申请人: Ryan Moss Hawker , Jeng Jun Xu , Wen Bo Len , Gou Zheng Wen , Zeng Wu Rong , Hang Xue Qun , Zhang Feng Yun
设计人: Ryan Moss Hawker , Jeng Jun Xu , Wen Bo Len , Gou Zheng Wen , Zeng Wu Rong , Hang Xue Qun , Zhang Feng Yun
-
公开(公告)号:US5714635A
公开(公告)日:1998-02-03
申请号:US758142
申请日:1996-11-25
申请人: Yin-Zu Chen , Zhang-Feng Yang , I-Hui Chen
发明人: Yin-Zu Chen , Zhang-Feng Yang , I-Hui Chen
IPC分类号: B01J23/75 , B01J23/86 , C07B61/00 , C07C209/72 , C07C211/35
CPC分类号: C07C209/72
摘要: The present invention is related to a method for preparation of cyclohexylamine by hydrogenating aniline at a temperature of 150.degree. to 250.degree. C. under a hydrogen pressure of 1 to 20 atm in the presence of a catalyst selected from a chromium- or thorium- modified cobalt boride, wherein the amount of said modified cobalt boride is at least 0.6 wt % based on the weight of aniline. Compared with the prior art which used a conventional hydrogenation catalyst such as ruthenium, palladium, Raney cobalt or Raney nickel, the method adopted by the present invention has the advantages in that it can be performed under a relatively lower hydrogen pressure without necessity of adding any coupling inhibitors and a much higher aniline conversion and a higher or comparable selectivity to cyclohexylamine can be obtained, thus resulting in greatly increased yield of cyclohexylamine.
摘要翻译: 本发明涉及一种在150〜250℃的温度下,在1〜20atm氢气压力下,在选自铬或钍改性的催化剂存在下,使苯胺氢化制备环己胺的方法。 钴硼化物,其中所述改性钴硼化物的量相对于苯胺的重量为至少0.6重量%。 与使用常规氢化催化剂如钌,钯,阮内钴或阮内镍的现有技术相比,本发明所采用的方法具有这样的优点,可以在相对较低的氢气压力下进行,而不需要添加任何 偶联抑制剂和高得多的苯胺转化率和对环己胺的更高或相当的选择性,从而大大提高了环己胺的产率。
-
公开(公告)号:US20180142103A1
公开(公告)日:2018-05-24
申请号:US15875387
申请日:2018-01-19
申请人: Channing Charles Beaudry , Howard T. Killilea , Wylie H. Wetzel , Walter J. Blatter , Zhang Feng , Donald W. Boespflug , David J. Fouquette , Douglas T. Mueller
发明人: Channing Charles Beaudry , Howard T. Killilea , Wylie H. Wetzel , Walter J. Blatter , Zhang Feng , Donald W. Boespflug , David J. Fouquette , Douglas T. Mueller
IPC分类号: C09D5/08 , B05D7/00 , C09D127/08 , C09D163/00
CPC分类号: C09D5/08 , B05D7/54 , B05D2202/00 , B05D2451/00 , C09D127/08 , C09D163/00 , Y10T428/31699 , B05D2401/20
摘要: The present invention provides a water-based coating system that can be used to form durable, abrasion resistant, corrosion resistant, protective barriers on a wide range of substrates. The coating system is particularly effective for protecting metal-containing substrates, such as intermodal cargo containers, against corrosion. As an overview, the present invention provides water-based primer compositions suitable to form primer coats and topcoats on substrates. Desirably, the primer incorporates one or more chlorinated resins for excellent corrosion protection. These polymers not only provide excellent corrosion protection and but also show excellent adhesion to a wide range of substrate materials. The system also includes topcoat compositions enhance compatibility and adhesion to the primer and to provide enhanced application.
-
-