FIELD: paint industry.
SUBSTANCE: invention can be used in the paint industry, in the production of building materials, rubber products, plastics, enamels, ceramics. To obtain iron-containing pigments and fillers, the feedstock is subjected to dry magnetic separation and the magnetic fraction is separated. Carry out heat treatment of the obtained fraction at a temperature of from 500 to 1,000 °C. Calcined material after cooling is crushed in a rotary vortex mill and a fraction less than 45 mcm is collected. As a source of raw materials used dust gas cleaning electrometallurgical production.
EFFECT: invention makes it possible to simplify the technology for producing iron oxide pigments and fillers, to expand their range, to dispose of powdered waste from electrometallurgical production to produce a product with homogeneous fractional and chemical composition, deep color, high opacity, lightfastness.
1 cl, 2 dwg, 2 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING IRON OXIDE PIGMENTS | 2004 |
|
RU2256679C1 |
| METHOD FOR PURIFICATION OF WASHING WASTEWATER FROM HEXAVALENT CHROMIUM | 2022 |
|
RU2791260C1 |
| METHOD OF DEEP RECYCLING IRON-CONTAINING WASTES | 2015 |
|
RU2623928C2 |
| METHOD OF IRON OXIDE PIGMENT OBTAINMENT | 2013 |
|
RU2540640C1 |
| METHOD FOR STEELMAKING PROCESSING WASTE RECYCLING TO PRODUCE PORTLANDCEMENT CLINKER AND CAST IRON | 2016 |
|
RU2629424C1 |
| COMPLEX PROCESSING OF METALLURGICAL AND MINING SLIMES | 2014 |
|
RU2566706C2 |
| PLANT FOR PRODUCTION OF IRON OXIDE PIGMENTS FROM GAS CLEANING WASTES OF METALLURGICAL PRODUCTION | 2021 |
|
RU2769857C1 |
| METHOD OF PRODUCING IRON OXIDE PIGMENTS | 2011 |
|
RU2471836C1 |
| METHOD FOR PREPARATION OF IRON OXIDE PIGMENT FROM SPECULARITE | 2007 |
|
RU2366674C2 |
| METHOD OF PROCESSING OF ZINC-CONTAINING DUSTS AND SLAGS OF METALLURGY AND MINING PRODUCTION | 2006 |
|
RU2340403C2 |
