1. The method of producing ceramic-like mass with magnetic properties consists in binding an inorganic filler, containing dried phosphogypsum waste and a substance with magnetic properties, by means of a synthetic resin in the presence of an appropriate hardening agent, in ahyrdous environment. Characterized in that: 100 parts by volume of an inorganic filler is introduced into 50-222 parts by volume of an epoxy resin during 0.2-5 hours, while the components are being constantly mixed. The filler has the form of a physically homogenous, dry mixture with the grain size up to 18 μm, containing magnetite and [phosphogypsum waste] in the volumetric proportion of 0.72 - 1.42 : 1. The latter is formerly heated for at least 1.5 hour at the temperature of at least 440 K. The viscosity of the raw mixture is maintained under 4 150 mPa?s. Then, 4.4 - 44.4 parts by volume of a known hardening agent of the triethylene-tetramine type are added. 4. The ceramic-like mass with magnetic properties consists of an inorganic filler, synthetic resin and a hardening agent. Characterized in that: Every 100 parts by volume of phosphogypsum waste corresponds to 72-142 parts by volume of magnetite, 86 - 537 parts by volume of epoxy resin, 7 - 107 parts by volume of triethylene-tetramine and up to 29 parts by volume of acetone or styrene.
展开▼