DEVICE FOR PRODUCING AN ALKALI METAL SALT OF MINERAL ACID FROM A METAL ALKALI CHLORIDE AND A MINERAL ACID, AND METHOD

摘要

PURPOSE:To obtain the titled apparatus with superior acid, heat and wear resistances by installing an agitating means having a special structure in a reaction chamber provided with a starting material feeding means, a product taking-out means, a by-produced gas exhausting means and heating means. CONSTITUTION:An agitating means 2 composed of agitating shafts 11, 11A rotating in different directions and a plurality of columnar agitating vanes 13, 13A is installed in a reaction chamber 1, in the longitudinal direction, enclosed by a heat and acid resistant wall provided with a starting material feeding inlet 3 at one end, a product discharge outlet 4 and a by-produced gas exhaust port 5 at the other end, and a combustion furnace 7 on the top through a muffle 6. In order to give a forced agitating function to the means 2 in a zone where a liq. phase continues in a reactive mixture, the vanes 13, 13A are shifted by 30-70 deg. so that lines connecting the vanes 13-13-3 and 13A-13A-3 are made spiral, and in order to give a forced kneading function to the means 2 in a zone where a solid phase continues in the mixtuer, the vanes 13, 13A are set at the same place in the longitudinal direction of each shaft 11, 11A so that the opposite vanes 13, 13A are highly crossed each other on the same surface of rotation.