H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 6/52 (2006.01) B03B 9/06 (2006.01) B09B 3/00 (2006.01) B29B 17/02 (2006.01) C22B 43/00 (2006.01) H01M 10/54 (2006.01)
Patent
CA 2058528
ABSTRACT Method and apparatus for processing used batteries Used appliance batteries are processed by thermal- mechanical treatment in a closed container (1) at a temperature at which, possibly with the assistance of mechanical pressure and/or impact, metal-plastics and metal-metal bonds are disrupted. Then, the metal parts, the synthetic plastics parts and graphite electrodes are separated by conventional physical separating methods, vaporised mercury is extracted and washed with sulphuric acid in a washing plant and any metal salts are brought into solution and processed by ion exchanged. Apparatus for carrying out the method consists of a heatable container (1) provided with a closable charging aperture (2) a discharge orifice (3) and with feed (4) and discharge lines (5) for inert gas. A gas washing aparatus (6) for the inert gas leaving the container (1) employs sulphuric acid with which the vaporised mercury reacts forming mercury sulphates the latter is recovered in an electrolysing plant (7).
Fetherstonhaugh & Co.
Mr Metall-Recycling Gmbh
LandOfFree
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