-
公开(公告)号:US5714647A
公开(公告)日:1998-02-03
申请号:US785577
申请日:1997-01-21
IPC分类号: C07C201/08 , C07C201/16 , C07C205/12 , C07C205/00
CPC分类号: C07C201/08
摘要: Mononitrohalogenobenzenes can be prepared by mixing halogenobenzene, nitric acid, sulphuric acid and water intensively with one another, simultaneously or in succession in their total quantity, and by redispersing them at least twice in the case of continuous preparation, applying a mixing energy of 1-40 watts per liter of the overall reaction mixture, preferably 3-30 W/l, largely suppressing back-mixing in the continuous procedure, and observing adiabatic reaction conditions.
摘要翻译: 一硝基卤代苯可以通过将卤代苯,硝酸,硫酸和水彼此同时或相继地以总量相互重叠混合,并且在连续制备的情况下将它们再分散至少两次来制备, 总体反应混合物为40瓦/升,优选为3-30W / l,在连续方法中大大抑制了反混合,并且观察绝热反应条件。
-
公开(公告)号:US5648565A
公开(公告)日:1997-07-15
申请号:US679323
申请日:1996-07-12
IPC分类号: C01B17/88 , C07C201/08 , C07C201/16 , C07C205/06 , C07C205/00
CPC分类号: C07C201/08
摘要: Mononitrotoluenes can be prepared by intensively mixing together toluene, nitric acid, sulphuric acid and water, simultaneously or successively in their total amount, and, in the case of continuous preparation, redispersing the mixture at least twice, for which purpose a mixing energy of 1 to 40 watts per liter of the total reaction mixture, preferably 3 to 30 W/l, is employed per volume of the reactor, and, for the continuous procedure, the back mixing is substantially repressed. Adiabatic reaction conditions are maintained.
摘要翻译: 单硝基甲苯可以通过将甲苯,硝酸,硫酸和水同时或相继浓缩在一起而制备,并且在连续制备的情况下,将混合物再分散至少两次,为此目的的混合能量为1 至40瓦/升的总反应混合物,优选3至30W / l,并且对于连续方法,背混合基本上被压制。 保持绝热反应条件。
-
公开(公告)号:US4489210A
公开(公告)日:1984-12-18
申请号:US403399
申请日:1982-07-30
IPC分类号: C07B31/00 , C07B39/00 , C07C17/00 , C07C17/12 , C07C25/02 , C07C27/00 , C07C37/62 , C07C39/27 , C07C67/00 , C07C39/24
CPC分类号: C07C37/62 , C07B39/00 , C07C17/12 , Y02P20/582
摘要: The invention relates to a process for the halogenation of organic compounds in the liquid phase using gaseous halogenating agents, the gaseous halogenating agents being metered into the reaction vessel at such an entry velocity that a gas jet is formed in the reaction mixture at the point of entry of the halogenating agent and the formation of individual gas bubbles at the point of entry is prevented.
摘要翻译: 本发明涉及一种使用气态卤化剂在液相中卤化有机化合物的方法,气态卤化剂以入口速度计量加入反应容器中,使得在反应混合物中形成气体射流 防止了卤化剂的进入和进入点形成单独的气泡。
-
14.
公开(公告)号:US4045190A
公开(公告)日:1977-08-30
申请号:US476830
申请日:1974-06-06
申请人: Artur Judat , Helmut Judat , Gerd Grah
发明人: Artur Judat , Helmut Judat , Gerd Grah
CPC分类号: B01D3/20
摘要: A method is provided for controlling the flow of liquid through a column separated by vertically spaced plates into compartments to determine the height of liquid on a plate wherein the liquid is flowed through tubes from compartment to compartment and the rate of flow through the tubes is regulated by a throttle valve responsive to gas pressure below a plate or to the height of liquid in a compartment.
摘要翻译: 提供了一种方法,用于控制液体通过由垂直间隔开的板分隔成隔室的塔流,以确定板上的液体的高度,其中液体从隔室流向隔室,流经管的流速被调节 通过响应于板下方的气体压力或隔室中液体的高度的节流阀。
-
-
-