Chrome containing industrial wastes, solutions chromium tannins, pelts, semifinished item and leather. Development of a method of deriving masking tannins from industrial chrome contains wastes and technology of their application. Atom-absorption spectrometry, Ionic exchange, infrared spectrometry, methods experimental - statistical modelling and optimisation. The method of use industrial chrome containing wastes for production tannins and technology of application synthesised tannins in production of leather is developed, the regularities of regulation of chemical structure and properties obtained tannins, character of their interaction with collagen of a leather are established. The introduction of outcomes of work enables essentially to improve an ecological situation at the enterprises forming chrome containing wastes to expand a range chromium tannins and to reduce an amount of money resources, which are expended for purchase chromium tannins abroad. Orb of use is the tanning industry and enterpr ises of machine-building, chemical and pharmaceutical branch.
