Reaction system

The present invention relates to a reaction system comprising: a first vessel (10) configured for containing a first reactant; a second container (20) configured for containing a second reactant and capable of communicating with the first container (10) such that the second reactant can enter the first container; a third vessel (30) configured for receiving the product resulting from the reaction in the first vessel, in which the first vessel is arranged non-horizontally such that the first end (11A) of the two opposite ends of the first vessel is vertically higher than the second end (11B), at least one of the first and second ends being provided with a filter (11), and the third vessel is configured for receiving the product resulting from the reaction in the first vessel. The reaction system comprises a first container (10) configured with an introduction sub-port and a discharge sub-port at a first end, a third container configured with another introduction sub-port and a discharge sub-port, a second cont