Rudarski radovi br 4 2011 - Institut za rudarstvo i metalurgiju Bor

Table 2. Variation of cathode copper production, 1990 – 2010[3]<br />
Year<br />
Copper production<br />
from own copper ore, t<br />
Copper production<br />
from imported ore,<br />
t<br />
Total copper production,<br />
t<br />
1990 102,222 49,173 151,395<br />
1991 95,077 38,702 133,779<br />
1992 78,561 36,203 114,764<br />
1993 43,410 7,765 51,175<br />
1994 66,308 5,841 72,149<br />
1995 70,992 6,459 77,451<br />
1996 60,015 43,985 104,000<br />
1997 64,264 42,319 106,583<br />
1998 61,587 32,809 94,396<br />
1999 42,611 7,411 50,022<br />
2000 30,357 15,278 45,632<br />
2001 17,403 14,962 32,605<br />
2002 20,984 14,913 35,897<br />
2003 9,914 4,115 14,029<br />
2004 9,343 2,654 11,997<br />
2005 9,916 21,368 31,284<br />
2006 11,120 31,434 42,554<br />
2007 16,062 15,136 31,198<br />
2008 18,550 15,201 33,751<br />
2009 18,875 8,537 27,412<br />
2010 21,240 963 22,203<br />
Besides the exploitation of copper, the<br />
accompanying minerals and other useful<br />
elements in the ore have a special importance.<br />
It is considered that at least 14 accompanying<br />
metallic and nonmetallic<br />
elements could be found in the ore, whose<br />
extraction would be economically justified<br />
(A.Šutulov). Their production gives the<br />
useful goods, what is reflected to an increase<br />
in the total value of production,<br />
while at the same time, due to the reduction<br />
of fixed costs of individual products,<br />
a lower cost of copper is achieved. Certainly,<br />
under the condition that processing<br />
of accompanying elements does not increase<br />
the costs of copper production.<br />
No 4, 2011. 142<br />
MINING ENGINEERING