Batch reaction system

The present invention relates to a batch reaction system for simultaneously conducting reactions in at least two separate reactors. The batch reaction system has at least two batch reactors, each reactor containing mixing means and a fluid inlet. Possibly the reactor also has a fluid outlet. A fluid feeding common conduit can be present for feeding fluid to the reactors. This fluid feeding common conduit is connected to the inlet of each reactor by a fluid inlet conduit. A fluid discharge common conduit can be present for discharging fluid from the reactors 2 . This fluid discharge common conduit is connected to the outlet of each reactor by a a fluid outlet conduit. In each fluid inlet conduit and/or in each fluid outlet conduit a non-return valve is arranged to prevent contamination.