| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to the purification of finely-disperse organic substances from water-soluble admixtures and can be applied in the chemical, petrochemical, pharmaceutical, food branches of industry. Described is a method of removing water-soluble admixtures from suspensions of organic products by repeated repulpation-decantation with the application of water, containing metal nanoparticles, as a washing liquid. At the first and second stages of the repulpation used is water, passed through a layer of carbon with high reaction ability, containing nanoparticles of metal oxide from the group, including nickel oxide, nickel and chrome oxide, nickel and iron oxide. At the third stage of the repulpation used is water, containing nanoparticles of metal from the group, including iron, aluminium, nickel, platinum. The fourth repulpation is carried out with the application of water, containing a micellar solution of silver or gold as a washing liquid.EFFECT: invention provides the reduction of loss of the target substance with a washing liquid, reduction of the volume of sewage waters, requiring purification from organic compounds and water-soluble admixtures and increase of the consumer properties of organic substances.10 cl, 3 dwg, 4 tbl, 14 ex |
