Ushbu maqolada Ko'kpatas va Daug`iztau konlarini zabalans rudalarini bakterial to'p tanlab eritmagao`tkazish imkoniyati ko'rib chiqilgan. Bu tajribalar Navoiy kon-metallurgiya kombinatni Markaziy ilmiytadqiqotlaboratoriyasida o'tkazildi. Bakterial to'p ishqorlash o'tkazishda jarayonlarning salbiy omillari muammolarinihal etish yo`llari ochib berilgan. pH darajasida o'zgarishlar dinamikasi keltirilgan, ilk rudaning kimyoviytarkibi tahlili o'tkazilgan, shunga asosan qattiq probalarni namlik va kislotalik sig'imlarini aniqlash metodikalarituzilib chiqilgan.Tayanch iboralar: oltin rudalar, Ko'kpatas, Daug`iztau, to'p tanlab eritmaga o'tkazish, qattiq misollarnioksidlash, namlik sig'imi, tuz tarkibi, bakteriyalar yordamida ishqorlash, katta laboratoriya sinovlari,oksidlash jarayoni, o'rta pH o'zgarishlar dinamikasi, boshlang'ich rudani va suvning qaytishidagi kimyoviytarkib, namlik va kislotalik sig'imlari metodikasi, oltin mahalliy rudalarni qayta ishlash, tug'ma oltin,mikrokiritishlar, boshlang'ich sulfidli rudalar, uglerodli materiallar.In this article consider a question of the possibility of bacterial heap leaching resistant off-balance oresdeposits of Kokpatas and Daugyztau as an example of consolidated conducting laboratory tests at the CentralResearch Laboratory of the Navoi Mining and Metallurgical Combinat. Identified negative factors of acidificationprocess for bacterial heap leaching, and discussed ways to solve this problem. The dynamics of changes inthe level of pH, carried out an analysis of the chemical composition of the initial ore and sinks in the process ofacidification on which developed methods to determine the moisture capacity and acid consumption of solidsamples.Key words: refractory gold ore, Kokpatas, Daugyztau, heap leaching, acidification of solid samples, moisturecapacity, salt composition of plum, bacterial leaching, bigger laboratory tests, the acidification process,changes in the pH of the medium, the chemical composition of the original ore and sinks, the method to determinethe moisture capacity and acid consumption of solid samples, processing of indigenous gold ore, nativegold, micro-inclusions, primary sulfide ore, carbonaceous material.