BÜCHI AG - Reactor Systems and Pilot Plants

Mobile gas scrubber (volume scrubbing liquid) : 6, 10, 20, 50, 100 liter Mobile gas scrubber (column diameter): DN 50, 70, 100, 150, 200 Stationary gas scrubber (volume scrubbing liquid) : Customized according to process requirements Stationary gas scrubber (column diameter): DN50 up to DN600 Pressure: -1.0 (FV) to +0.5 bar Temperature exhaust gas: -60 °C to +200 °C Temperature scrubbing liquid: 0 °C to +80 °C Material: Borosilicate glass 3.3, PTFE, ETFE Gas scrubbers are used to neutralize corrosive exhaust gas from reactors. Depending on the scrubbing liquid, they can be used for caustic or acidic vapors. Gas scrubbers are equipped with an ETFE lined, corrosion resistant magnetic coupled pump. The flow rate of the scrubbing liquid can be controlled with the built-in reducing valve. The scrubbing liquid temperature is maintained by a spiral cooler in the liquid circuit.

We offer various solutions for liquid dosing. Based on parameters such as flow rate, dosing accuracy, properties of the media process and regulatory requirements we select the appropriate method of dosing as well the most suitable dosing instruments. Dosing methods used, include gravimetric dosing with load cells, various types of dosing pumps and dosing with pumps using mass flow controller (MFC) and level sensors.

The temperature of jacketed reactors can be controlled by TCUs (temperature control unit) large central heating/cooling units with secondary systems for individual reactor temperature control process steam (in case of large metal reactors) Our jacketed reactors are typically temperature controlled using heat transfer oil and TCU or central heating/cooling units. The heat transfer oil which is pumped through the jacket of the reactor controls the process temperature inside the reactor. The temperature range of the heat transfer oil spans from -80°C up to 300°C (depending on the heat transfer oil used).

Glass reactor: 20 to 30 liter Pressure: -1.0 (FV) to +0.5 bar Temperature: -60 °C (optional -90 °C) to +200 °C Material: Borosilicate glass 3.3, PTFE, PFA, PEEK The midiPilot is our sturdy multipurpose glass reactor for small volumes. It is specifically designed for applications in kilo lab, for chemical process development and cGMP compliant API syntheses. A clean-room setup and other materials are available to meet your specific process requirements. A clean-room setup and other materials are available to meet your specific process requirements.

Glass-lined steel reactor: 250 - 10'000 liter Pressure: -1.0 (FV) to +0.5 bar Temperature: -60 °C (-90 °C) to +200 °C Material: Borosilicate glass 3.3, glass-lined steel, PTFE, PFA, tantalum Chemical process equipment consisting of glass-lined reactors or mixing tanks with distillation overhead in borosilicate glass can be operated at full vacuum and low pressure. A large variety of chemicals can be processed in such plants due to the highly corrosion resistant materials used. The design varies between multipurpose product / process specific set ups. Feeders and receivers are made of glass for smaller units and of glass lined steel for larger setups. Shell and tube type heat exchangers are built with inner tubes made of borosilicate glass, glass-lined steel, silicon carbide, tantalum or other metals depending on process parameters and other requirements.

Universal glass reactor / Metal laboratory pressure reactor Reactor volume: 100 to 300 ml Pressure: -1 to +150 bar Temperature: -20 °C to +300 °C Material: Borosilicate glass 3.3, stainless steel, Hastelloy® Other materials, pressures & temperatures are available. This multipurpose pressure reactor system is designed for the use of interchangeable glass and steel pressure vessels. Safety features guarantee safe reactions under pressure. The glass reactors ensure high resistance against acids, while allowing visual process control and monitoring. It is also possible to use steel pressure vessels for high pressure reactions. The magnetic drive ensures efficient mixing and stirring of the process media as well as excellent heat transfer. The Fast Action Closure makes changing vessels quick and easy without the use of tools.

Mixing vessels (jacketed glass vessel): 10, 30, 50, 100 liter Mixing vessels (non-jacketed glass vessel): 10, 30, 50, 100, 200 liter Storage tanks (non-jacketed glass vessel): 10 to 400 liter Pressure: -1.0 (FV) to +0.5 bar Temperature: -60 °C (-90 °C) to +150 °C (200 °C) Material: Borosilicate glass 3.3, PTFE, PFA, ETFE Other setups are available Mixing vessels are frequently used for stirring, dissolving, mixing, extraction and other processes in kilo labs and pilot plants. Jacketed glass reactors permit heat exchange for better dissolving and crystallization. Mobile mixing vessels can be transported with their content for further processing. They can also be equipped with condensers for vacuum distillation and operated as a reactor. Connection to Buchi reactors or other equipment is usually done with camlock adapters and flexible hoses. Glass tanks are used in distillation glass overheads as feeders and receivers.

Laboratory pressure reactor system Reactor volume: 10 to 25 ml Pressure: -1 (FV) to +10 / 100 bar Temperature: -20 °C to +200 / 300 °C Material: Borosilicate glass 3.3, stainless steel, Hastelloy®, PTFE Other materials, pressures & temperatures are available. This pressure reactor system is designed for the use of interchangeable pressure vessels in glass, steel, Hastelloy®, Teflon. Safety features guarantee safe reactions under pressure. The glass pressure reactors ensure high resistance against acids, while allowing visual process control and monitoring.

Laboratory pressure reactor system - easy operation for heavy pressure vessels Reactor volume: 0.5 to 20.0 liter Pressure: -1 (FV) to +60 / 200 bar Temperature: -20 °C to +250 °C Material: stainless steel, Hastelloy®, glass-lined steel Other materials, pressures & temperatures are available This multipurpose pressure reactor system is designed for the use of large steel pressure vessels. The hydraulic vessel lift with tilt function makes opening and closing as well as cleaning of the vessel very easy. Safety features guarantee safe reactions under pressure. The stainless steel or Hastelloy® reactors ensure high resistance against acids. Visual process control and monitoring is also possible under high pressure by using steel pressure vessels with sight glasses. Various low to high torque magnetic drives ensure efficient mixing and stirring low to high viscosity process media as well as excellent heat transfer.

Laboratory pressure reactor system / Stirred autoclave for chemical research Reactor volume: 100 to 300 ml Pressure: -1 (FV) to +10 bar / 100 bar Temperature: -20 °C to +200 / 300 °C Material: Borosilicate glass 3.3, stainless steel, Hastelloy®, PTFE Other materials, pressures & temperatures are available This pressure reactor system is designed for the use of interchangeable pressure vessels in glass, steel, Hastelloy®, Teflon. Safety features guarantee safe reactions under pressure. The glass pressure reactors ensure high resistance against acids, while allowing visual process control and monitoring.