公开(公告)号：US3923962A

公开(公告)日：1975-12-02

申请号：US29258072

申请日：1972-09-27

Applicant: BAYER AG

Inventor： SCHAUPP KURT ,  SCHULZE MANFRED

IPC: C07C43/10 ,  B01J3/00 ,  B01J3/04 ,  C01B33/107 ,  C01C1/16 ,  C01F7/50 ,  C07C41/00 ,  C07C67/00 ,  C08G18/08 ,  C01B33/12 ,  C01G1/00

CPC classification number: C08G18/0847 ,  B01J3/042 ,  C01C1/162 ,  C01F7/50

Abstract: An apparatus for carrying out chemical reactions comprising a pair of substantially vertical pipes connected to one another adjacent their bottoms, means for supplying liquid to one of said pipes to maintain therein a liquid level, an overflow pipe connected to the second of said pipes at a level below the liquid level in said one pipe, and means for introducing at least one reactant to said one pipe below the liquid level therein, whereby the reaction is able to proceed under the pressure of the column of liquid in said one pipe, liquid and reaction product being continuously withdrawn. A heat exchanger may connect the two pipes adjacent their lower ends so that hot liquid in the second pipe can be cooled and recycled to the first pipe. The apparatus is especially suited for the reaction of ammonia and hexafluorosilicic acid to produce ammonium hexafluorosilicate.

Abstract translation: 一种用于进行化学反应的装置，包括一对彼此靠近底部连接的基本垂直的管道，用于将液体供应到一个所述管道以保持其液面的装置，在一个管道中连接到第二管道的溢流管 在所述一个管中的液位以下的装置，以及用于将至少一种反应物引入低于其液面的所述一个管的装置，由此该反应能够在所述一个管，液体中的液体柱的压力下进行， 反应产物不断排出。 热交换器可以将两个管连接在其下端，使得第二管中的热液体可被冷却并再循环到第一管。 该装置特别适用于氨和六氟硅酸反应生成六氟硅酸铵。

公开(公告)号：US3669621A

公开(公告)日：1972-06-13

申请号：US3669621D

申请日：1970-07-01

Applicant: BAYER AG

Inventor： SCHULZE MANFRED ,  SCHABACHER WERNER

IPC: C01B33/10 ,  C01C1/16

CPC classification number: C01B33/103 ,  C01C1/162

Abstract: HEXAFLUOROSILICIC ACID SOLUTIONS ARE FREED OF PHOSPHATE IONS BY ADDITION OF FERRIC ION AND INTRODUCTION OF AMMONIA GAS TO PRECIPITATE FERRIC PHOSPHATE. SUBSTANTIALLY PHOSPHATE ION-FREE AMMONIUM FLUORIDE SOLUTIONS ARE OBTAINED FROM THE HEXAFLUOROSILICIC ACID SOLUTIONS.