| 摘要 |
<p>Copper scrap, reduced to particulate form having particle sizes not larger than 50 mm, is leached in a suitable apparatus with a solution of ferric fluoroborate in fluoroboric acid. During leaching, copper is dissolved, with ferric fluoroborate simultaneously being reduced to ferrous fluoroborate according to the following reaction: 2 Fe(BF4)3+Cu->Cu(BF4)2+2 Fe(BF4)2(1) The resulting solution is fed to the cathodic compartment of diaphragm cell, in which copper is deposited, in compact and highly pure form, on a stainless steel cathode, from which it is periodically recovered.</p> |
