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位于安那托利亚中部的迪夫里伊（Divrui）矿床的开采始于1938年。直到1973年，选矿仅包括提供决矿和烧结用矿的破碎分级作业。70年代，土耳其钢铁工业扩大生产，对精料提出了更高的质量要求：块矿和烧结用精矿含铁量至少为62％～63％，而且要生产含铁量至少为65％～66％的球团用精矿。为了提供这些产品，设计并建设了一座选矿厂。为进行选矿厂技术设计，德国铁矿选矿研究公司（StudiengesellschaftfurEisenerzaufbereitung）在实验室和批量试验中，对大约20个分矿样进行了研究。根据研究结果，能够制订出工艺流程，得到要求的产品。其后，用较大数量的矿样进行了半工业试验，以证实拟定的工艺流程，得到工业规模选矿厂设计需要的资料并为冶金试验提供精矿矿样。
The mining of the Divrui deposit in central Anatolia began in 1938. Until 1973, the beneficiation only included the crushing and grading of ore mines and sinter mines. In the 1970s, the Turkish steel industry expanded its production and put forward higher quality requirements for concentrates: concentrates containing lump ore and sinter should have a ferrous content of at least 62% -63% and iron content of at least 65% -66 % Pellets with concentrate. In order to provide these products, a concentrator was designed and constructed. For the technical design of the concentrator, about 20 sub-ore samples were studied by the German research company Studiengesellschaft fur Eisenerzaufbereitung in laboratory and batch tests. According to the research results, we can formulate the process flow and obtain the required product. Thereafter, a semi-industrial test was conducted with a larger number of mineral samples to confirm the proposed process, obtain the information needed for the design of the industrial-scale beneficiation plant and provide the concentrate for the metallurgical test.