A method for producing a particulate material from an at least partially liquid material (35, 235) containing a solvent and/or dispersant, - wherein, for executing the method, a fluidized bed device having a plurality of fluidized bed containers (11, 12, 13, 211) is used, of which each has a wall (15, 215) and a process chamber (21, 22, 23, 221) that is delimited on the lower end by a gas-permeable base and at the upper end, at least to a large extent, by a filter, - wherein the fluidized bed containers (11, 12, 13, 211) comprise a first container (11, 211), having a first process chamber (21, 221), and a second container, having a second process chamber, - wherein each container (11, 12, 13, 211) has a particle outlet (45, 47, 49) having a passage that opens into the process chamber (21, 22, 23, 221) immediately above the gas-permeable base, - wherein the second container has a particle inlet having a passage opening into the second process chamber, - wherein the particle outlet of the first container (11, 211) is connected to the particle inlet of the second container via a transfer connection, and, - wherein particles are at least partly dried by freeze-drying in one of the process chambers (21, 22, 23, 211), characterized in that - the first container (11, 211) of the device used has a spray device having at least one spray nozzle (31, 231) with a downwardly directed outlet opening, - in that the at least partially liquid material (35, 235) is atomized in the first process chamber (21, 221) to give droplets and these are frozen by contact with a freezing fluid to give particles, - in that the particles are then at least partly dried by freeze-drying in the first and/or second process chamber (21, 22, 221), - in that during freeze-drying in this manner, process gas is passed upward from below through the at least one process chamber (21, 22, 221) for at least partly freeze-drying the particles and through the filter (18, 218), and, - in that at least a substantial part of the particles rest against the filter (18, 218) at least during a substantial part of the freeze-drying. - wherein, for executing the method, a fluidized bed device having a plurality of fluidized bed containers (11, 12, 13, 211) is used, of which each has a wall (15, 215) and a process chamber (21, 22, 23, 221) that is delimited on the lower end by a gas-permeable base and at the upper end, at least to a large extent, by a filter, - wherein the fluidized bed containers (11, 12, 13, 211) comprise a first container (11, 211), having a first process chamber (21, 221), and a second container, having a second process chamber, - wherein each container (11, 12, 13, 211) has a particle outlet (45, 47, 49) having a passage that opens into the process chamber (21, 22, 23, 221) immediately above the gas-permeable base, - wherein the second container has a particle inlet having a passage opening into the second process chamber, - wherein the particle outlet of the first container (11, 211) is connected to the particle inlet of the second container via a transfer connection, and, - wherein particles are at least partly dried by freeze-drying in one of the process chambers (21, 22, 23, 211), characterized in that - the first container (11, 211) of the device used has a spray device having at least one spray nozzle (31, 231) with a downwardly directed outlet opening, - in that the at least partially liquid material (35, 235) is atomized in the first process chamber (21, 221) to give droplets and these are frozen by contact with a freezing fluid to give particles, - in that the particles are then at least partly dried by freeze-drying in the first and/or second process chamber (21, 22, 221), - in that during freeze-drying in this manner, process gas is passed upward from below through the at least one process chamber (21, 22, 221) for at least partly freeze-drying the particles and through the filter (18, 218), and, - in that at least a substantial part of the particles rest against the filter (18, 218) at least during a substantial part of the freeze-drying.