公开(公告)号：US4093668A

公开(公告)日：1978-06-06

申请号：US452565

申请日：1974-03-19

申请人： Wolfgang Reiss ,  Hans-Ingo Joschek ,  Rudolf Schnur ,  Siegfried Winderl ,  Juergen Dehler ,  Herwig Hoffmann

发明人： Wolfgang Reiss ,  Hans-Ingo Joschek ,  Rudolf Schnur ,  Siegfried Winderl ,  Juergen Dehler ,  Herwig Hoffmann

IPC分类号： C07C29/42 ,  B01J31/00 ,  C07B61/00 ,  C07C27/00 ,  C07C33/046 ,  C07C67/00 ,  C07C29/00

CPC分类号： C07C33/046 ,  C08K3/36

摘要： Butynediol is prepared by reacting acetylene and formaldehyde in contact with a heavy metal acetylide as catalyst, in the liquid phase by the Reppe method. Acetylene is fed upwardly through a suspension of the catalyst in formaldehyde at such a rate that it is virtually completely consumed and a liquid zone containing no catalyst is formed above the suspension.

摘要翻译： 丁炔二醇通过使乙炔和甲醛与重金属乙炔化物作为催化剂接触，通过Reppe法在液相中反应制备。 将乙炔向上通过催化剂在甲醛中的悬浮液，其速率实质上完全消耗，并且在悬浮液上形成不含催化剂的液体区域。

公开(公告)号：US3957888A

公开(公告)日：1976-05-18

申请号：US569216

申请日：1975-04-18

申请人： Wolfgang Reiss ,  Rudolf Schnur ,  Siegfried Winderl ,  Herwig Hoffmann ,  Peter Zehner

发明人： Wolfgang Reiss ,  Rudolf Schnur ,  Siegfried Winderl ,  Herwig Hoffmann ,  Peter Zehner

IPC分类号： C07C29/42 ,  B01J31/00 ,  C07B61/00 ,  C07C27/00 ,  C07C29/38 ,  C07C33/046 ,  C07C67/00 ,  C07C29/00

CPC分类号： C07C29/38 ,  C07C33/046

摘要： Process for the manufacture of butynediol-1,4 from acetylene and formaldehyde in aqueous solution in contact with a copper acetylide catalyst in the absence of a gas phase.

公开(公告)号：US06258281B1

公开(公告)日：2001-07-10

申请号：US09336722

申请日：1999-06-21

申请人： Edmund Niedbalski ,  Laurance Thurman ,  Irene Troetsch-Schaller ,  Ludwig Schuster ,  Dieter Voges ,  Peter Zehner ,  Klaus Bittins ,  Rudolf Schnur

发明人： Edmund Niedbalski ,  Laurance Thurman ,  Irene Troetsch-Schaller ,  Ludwig Schuster ,  Dieter Voges ,  Peter Zehner ,  Klaus Bittins ,  Rudolf Schnur

IPC分类号： C02F178

CPC分类号： C02F1/78 ,  Y10S210/909

摘要： A process for breaking down aromatics in industrial wastewaters that contain small amounts of aromatics by reaction with an ozone-containing oxygen stream at a temperature of from 40 to 70° C. and at a pH of from 4 to 7, involves treating industrial wastewaters that contain small amounts of aromatics in two stages with an oxygen stream that contains from 5 to 8% by volume of ozone with thorough mixing by causing the wastewater to flow upward through two reaction zones, the overflow of the wastewater at the top of the first reaction zone entering the second reaction zone at the base, the purified wastewater being obtained at the top of the second reaction zone, the ozone-containing oxygen stream first entering at the base of the second reaction zone, and the waste gas obtained at the top of the second reactor being introduced at the base of the first reaction zone, and, furthermore, a gas containing less than 0.2% by volume of ozone being obtained at the top of the first reaction zone.

摘要翻译： 在-40〜70℃，pH4〜7的温度下，通过与含臭氧的氧气流反应而含有少量芳族化合物的工业废水中的芳族化合物的分解方法涉及处理工业废水， 在两个阶段中含有少量芳烃，其中含有5-8％（体积）臭氧的氧气，通过使废水通过两个反应区向上流动而充分混合，第一反应顶部的废水溢出 进入第二反应区的第二反应区的第二反应区的第二反应区的净化废水，在第二反应区的顶部得到的纯化废水，首先进入第二反应区的碱的含臭氧的氧流， 第二反应器被引入第一反应区的底部，此外，在第一反应区的顶部获得含有小于0.2体积％的臭氧的气体。