Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Štrbac Nada D."'
Autor:
Štrbac Nada D., Sokić Miroslav D., Mitovski Aleksandra M., Gurešić Dejan M., Božinović Kristina N., Stojanović Jovica N., Tomović Milica P.
Publikováno v:
Tehnika, Vol 75, Iss 5, Pp 587-593 (2020)
Bismuth (III) sulfide has been widely researched in recent years due to its application, but little emphasis has been placed on research regarding its behavior at elevated temperatures. This is of great importance, considering that bismuth, in the fo
Externí odkaz:
https://doaj.org/article/1d28a29a248d42858845a63e96944878
Autor:
Sokić Miroslav D., Stojanović Jovica N., Marković Branislav R., Bugarčić Mladen, Štrbac Nada D., Kamberović Željko J., Manojlović Vaso D.
Publikováno v:
Hemijska Industrija, Vol 71, Iss 6, Pp 461-469 (2017)
In this paper, the influence of structural and textural characteristics of sulfide minerals on their leaching from a polymetallic concentrate by sulfuric acid and sodium nitrate solution is presented. The starting material was Pb–Zn–Cu sulphide p
Externí odkaz:
https://doaj.org/article/0adc475fa24243c19b6f2ef4e9d0e779
Autor:
Stamenković Uroš S., Ivanov Svetlana Lj., Marković Ivana I., Štrbac Nada D., Mitovski Aleksandra M.
Publikováno v:
Tehnika, Vol 72, Iss 4, Pp 523-527 (2017)
The 6000 series alloys belong to the group of aluminium alloys that contain magnesium and silicon as their two main alloying elements. In addition to these two alloying elements, the alloys contain manganese and other elements, in accordance to the t
Externí odkaz:
https://doaj.org/article/a333454052b44fae9dd6ce277efc2870
Autor:
Manasijević Ivana I., Štrbac Nada D., Živković Dragana T., Balanović Ljubiša T., Minić Duško M., Manasijević Dragan M.
Publikováno v:
Tehnika, Vol 71, Iss 4, Pp 553-559 (2016)
Copper is one of the main alloying elements for aluminum casting alloys. As an alloying element, copper significantly increases the tensile strength and toughness of alloys based on aluminum. The copper content in the industrial casting aluminum allo
Externí odkaz:
https://doaj.org/article/28cd23f96d8f4d558f2b5ee8fbd66899
Autor:
Sokić Miroslav D., Gulišija Zvonko P., Ilić Ilija B., Marković Branislav R., Štrbac Nada D., Manojlović Vaso D.
Publikováno v:
Tehnika, Vol 70, Iss 2, Pp 251-257 (2015)
Besides iron ore, the main raw material of iron and steel production is steel scrap. This paper presents the quality and sources of creation the iron and steel scrap and estimation of their creation in the future. The content of impurities and trace
Externí odkaz:
https://doaj.org/article/e099b232ae54409a9ca86ddfc1760a6c
Autor:
Štrbac Nada D., Sokić Miroslav D., Mitovski Aleksandra M., Živković Dragana T., Marković Branislav R., Andrić Velibor Đ.
Publikováno v:
Tehnika, Vol 70, Iss 1, Pp 60-65 (2015)
The paper presents DTA/TG results of polymetallic sulphide copper concentrate from the mine 'Veliki Krivelj' (Serbia) at 25-1000 °C. The reaction mechanism at elevated temperatures was proposed. As confirmation to the proposed mechanism, the results
Externí odkaz:
https://doaj.org/article/4491dde072d3480299bdb65baa374501
Autor:
Sokić Miroslav D., Gulišija Zvonko P., Ilić Ilija B., Marković Branislav R., Štrbac Nada D., Živković Dragana T., Manojlović Vaso D.
Publikováno v:
Tehnika, Vol 70, Iss 4, Pp 616-622 (2015)
Procedures for copper secondary raw materials processing include two basic stages: pretreatment of the copper waste and its further metallurgical processing. For copper waste pretreatment technology, there are different applied procedures depending o
Externí odkaz:
https://doaj.org/article/d2235fc96a084081903b89373af6f218
Autor:
Mitovski Aleksandra M., Mihajlović Ivan N., Štrbac Nada D., Sokić Miroslav D., Živković Dragana T., Živković Živan D.
Publikováno v:
Hemijska Industrija, Vol 69, Iss 3, Pp 287-296 (2015)
Selective arsenic extraction from enargite based complex concentrate from Copper Mine in Bor (Serbia), using sodium hypochlorite as a leaching agent, was investigated in this paper. The aim was to assess the optimal conditions for the most efficie
Externí odkaz:
https://doaj.org/article/e696c8b7da114386be7aef8898c9b685
Autor:
Sokić Miroslav D., Matković Vladislav Lj., Marković Branislav R., Štrbac Nada D., Živković Dragana T.
Publikováno v:
Hemijska Industrija, Vol 64, Iss 4, Pp 343-350 (2010)
In this work, the process of the chalcopyrite leaching in sulphuric acid solution was investigated. Sodium nitrate was used as oxidant in the leaching process. Chemical reactions of leaching and their thermodynamic possibilities are predicted based o
Externí odkaz:
https://doaj.org/article/952738a035c84d76897d666e79bbc6f2
Autor:
Mitovski Aleksandra M., Živković Dragana T., Manasijević Dragan M., Minić Duško M., Balanović Ljubiša T., Štrbac Nada D.
Publikováno v:
Hemijska Industrija, Vol 64, Iss 2, Pp 99-103 (2010)
Physico-chemical processes that take place during the refining process in the extractive metallurgy of lead, are connected with ternary Pb−Zn−Ag system, which is necessary to study from the theoretical practical and aspects. Such investigation is
Externí odkaz:
https://doaj.org/article/4c1b24cac9d548119843449988552b7e