A process for recovering plastic material, in particular polypropylene plastic material, comprising in sequence at least the steps of - removing impurities from the plastic material to be recovered, - shredding and reducing the material deprived of impurities into flakes of predetermined size, - transporting the flakes in the form of air mixed flakes towards a mixing step, - mixing by way of a mixing cell operating in turbulence and strong suspension conditions the air mixed flakes, said mixing step comprising the steps of - filling a chamber with the air mixed flakes and at the same time activating a carpet comprised in the chamber, - transporting the air mixed flakes to a miller by way of the carpet, - vertically moving the air mixed flakes by way of the miller so as to mix and send the air mixed flakes by way of an unloading hopper to the next step, - transporting, weighing and sending to the next step the air mixed flakes by way of a transporting and weighing cell comprising one or more conveyor carpets (31, 32, 33), said one or more conveyor carpets (31, 32, 33) being moved so as to synchronize the movement of the air mixed flakes both in the mixing cell and in the transporting and weighing cell, - compacting air mixed flakes by way of a compaction cell arranged to separate the flakes from the air and weighing the air-separated flakes, - providing by way of a forced flow cell a forced feeding of materials, said materials comprising the air-separated flakes, arriving from the compacting and weighing step, and process materials and additives, wherein said process materials and additives are provided to contribute to said recovering process, - extruding by way of an extrusion cell both said materials exiting from the forced flow cell and mineral fillers, said mineral fillers being provided to contribute to complete the recovering process of the plastic material. - removing impurities from the plastic material to be recovered, - shredding and reducing the material deprived of impurities into flakes of predetermined size, - transporting the flakes in the form of air mixed flakes towards a mixing step, - mixing by way of a mixing cell operating in turbulence and strong suspension conditions the air mixed flakes, said mixing step comprising the steps of - filling a chamber with the air mixed flakes and at the same time activating a carpet comprised in the chamber, - transporting the air mixed flakes to a miller by way of the carpet, - vertically moving the air mixed flakes by way of the miller so as to mix and send the air mixed flakes by way of an unloading hopper to the next step, - filling a chamber with the air mixed flakes and at the same time activating a carpet comprised in the chamber, - transporting the air mixed flakes to a miller by way of the carpet, - vertically moving the air mixed flakes by way of the miller so as to mix and send the air mixed flakes by way of an unloading hopper to the next step, - transporting, weighing and sending to the next step the air mixed flakes by way of a transporting and weighing cell comprising one or more conveyor carpets (31, 32, 33), said one or more conveyor carpets (31, 32, 33) being moved so as to synchronize the movement of the air mixed flakes both in the mixing cell and in the transporting and weighing cell, - compacting air mixed flakes by way of a compaction cell arranged to separate the flakes from the air and weighing the air-separated flakes, - providing by way of a forced flow cell a forced feeding of materials, said materials comprising the air-separated flakes, arriving from the compacting and weighing step, and process materials and additives, wherein said process materials and additives are provided to contribute to said recovering process, - extruding by way of an extrusion cell both said materials exiting from the forced flow cell and mineral fillers, said mineral fillers being provided to contribute to complete the recovering process of the plastic material.