Kryukova O. Improvement the properties of the recuperated chromium-based tanners

The PhD Thesis is devoted to the development of the method for improving the quality of tanning solutions, which are made of the chromium-containing wastes of the leather manufacturing. The influence of chemical nature of tanning compositions, the nature of interaction of collagen with the masking additives that have the polyfunctional properties of triethanolamine and urea are studied by methods of oscillatory and electronic microscopy. The technology of tanning, which is characterized by a high degree of use the chromium compounds is developed. It's studied the influence of polyfunctional additives on chemical composition and physical and chemical properties of the ready-made hides. The main results of the work are tested in the pilot plant of a tanning industry.