Abstract: A development assisting apparatus is provided which can give a finish of uniform quality and in a short time, irrespective of changes in temperature due to regional temperature differences or changes with the seasons. A case side clamping face 6 is provided on a front face of a case body 2, and an openable lid 3 with a lid side clamping face 16 provided on an inner face thereof, is hinged so as to be openable relative to the case side clamping face 6. A heating device 7 is provided on the case body 2, and in this case the case side clamping face 6 rather than the lid side clamping face 16 is heated so that an instant camera film 1 pressed and held between the clamping faces 6, 16 is kept warm. Due to the film 1 being kept warm by the heating and heat retention, then uniform development without irregularities is possible.

Abstract: A method of processing hot dross resulting from an aluminum smelting process is carried out as follows. First, the hot dross is filled in a hollow container which has a porous bottom plate closing a bottom opening of the container. A solid plate is placed on the filled hot dross. Then, an impact load is applied successively on the hot dross via the solid plate by an appropriate hammer mechanism. By the application of successive impact load, the air and aluminum content in a molten state are expelled from the dross and discharged through the porous bottom plate. The resultant solidified dross contains metal aluminum content without oxidized or nitrided, and therefore is suitable for use as a deoxidant utilized in deoxidizing process of oxidation smelting of steel.