Amberger Kaolinwerke Gmbh

Dynamit Nobel Aktiengesellschaft

Aamberger Kaolinwerke Gmbh

Akw Apparate + Verfahren Gmbh

Friedrich Donhauser

Anton Schoengen

Jorg Porschen

Johann H Schroeder

Johann H Shroeder

Guido Ropertz

A multistage arrangement for countercurrent separation of suspended solids, such as crystals, by means of hydro-cyclone groups connected in series and corresponding pumps and pump wells. For operating with relatively small expenditures with respect to apparatus under high pressures and at high temperatures within a certain, limited temperature range, the hydro-cyclone groups, the pump wells with pumps projecting into the pump wells, and the essential parts or regions of the lines are placed in a common pressure-proof and heat-insulated chamber. In addition, for removing coarser crystallizations and solid particles, an upstream classifier also accommodated in the chamber may be provided. The multistage arrangement can be used in a process for the production of terephthalic acid from dimethyl-terephthalate as the intermediate product, and in a process for the hydrogenation of coal.

Multistage arrangement for countercurrent separation and methods of

A process and apparatus for separating metallic from nonmetallic components in a mixture are disclosed. The process and apparatus rely upon the combination of prefractionation by sedimentation, preferably centrifugal sedimentation, followed by final concentration in a laminar flow process, preferably employing a spiral separator and one or more vibrating tables, to recover substantially all metal components of the mixture.

Process and apparatus for the separation of metallic components from

Hydrocyclone centrifugal separator

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Amberg, Germany

Friedrich Donhauser