Abstract: A mixing process for mixed material, in particular bulk material with simultaneous cooling of the mixed material in a double-walled mixing vessel where a coolant is circulated in the space between the external walls, whereby the coolant is formed by the refrigerant in a refrigerator which is released from high pressure in the space between the external walls and which evaporates and extracts temperature from the mixed material.

Abstract: A method for the production of an intermediate product which can be injection moulded, from a dry, pasty or fluid raw material and at least one binding agent can be carried out in a mixing container (4). The raw materials and the at least one binding agent can be initially processed into a pourable powder mixture using rapidly rotating mixing elements (18, 18′, 8″, 18′″) which is subsequently warmed and processed into the intermediate product with the assistance of mechanical processing of the powder mixture by the mixing elements (18 through 18′″) and/or additional components. The method facilitates as effective a manufacture as possible of a high quality intermediate product, in a substantially reduced processing time, which can be injection-moulded.