Device for separating and/or obtaining silicate particles from plant-based material with - a first comminution device for comminuting plant-based raw material into scatterable plant particles, - a first classifier in the form of an air classifier which comprises at least a material inlet , an air inlet arranged underneath the material inlet , an air outlet and at least one particle receiver arranged underneath the air outlet , wherein in the first classifier , plant particles obtained from plant-based material through comminution in the first comminution device are exposed to an air flow in such a way that silicate particles (S) contained in the plant-based material are removed with the air flow via the air outlet and through the effect of gravity the plant particles (P) are taken up and removed by the particle receiver arranged underneath the air outlet , characterised by - a second comminution device downstream of the first classifier and, - a second classifier downstream of the second comminution device , wherein the plant particles accruing in the first classifier are supplied to the second comminution device in which further comminution of the plant particles takes place, wherein the plant particles obtained through comminution in the second comminution device are exposed to an air flow in the second classifier is such a way that silicate particles (S) contained in the plant-based material are removed with the air flow via the air outlet and through the effect of gravity the plant particles (P) are taken up and removed by the particle receiver arranged underneath the air outlet . - a first comminution device for comminuting plant-based raw material into scatterable plant particles, - a first classifier in the form of an air classifier which comprises at least a material inlet , an air inlet arranged underneath the material inlet , an air outlet and at least one particle receiver arranged underneath the air outlet , wherein in the first classifier , plant particles obtained from plant-based material through comminution in the first comminution device are exposed to an air flow in such a way that silicate particles (S) contained in the plant-based material are removed with the air flow via the air outlet and through the effect of gravity the plant particles (P) are taken up and removed by the particle receiver arranged underneath the air outlet , characterised by - a second comminution device downstream of the first classifier and, - a second classifier downstream of the second comminution device , - a second comminution device downstream of the first classifier and, - a second classifier downstream of the second comminution device , wherein the plant particles accruing in the first classifier are supplied to the second comminution device in which further comminution of the plant particles takes place, wherein the plant particles obtained through comminution in the second comminution device are exposed to an air flow in the second classifier is such a way that silicate particles (S) contained in the plant-based material are removed with the air flow via the air outlet and through the effect of gravity the plant particles (P) are taken up and removed by the particle receiver arranged underneath the air outlet . <EOS>