May 5, 2022: Italian lead recycler STC confirmed on April 27 that it had been awarded a $5m contract to supply a lead battery recycling plant to Tunisian battery maker Nour.
STC, whose parent company is Bulgarian battery manufacturing group Monbat, said the recycling deal was agreed following Monbat’s formal acquisition of a 60% stake in Nour.
STC will supply a battery breaking and separation plant to be installed by Nour at a new facility in Tunis.
The plant will be able to process more than 25,000 tonnes annually of lead batteries and will feature latest technology to ensure operations “comply with strict EU environmental regulations”, STC said.
Technology featured at the plant, which STC said had been designed for an (unspecified) future increase in processing capacity, will include the company’s novel ‘U4Lead’ paste desulfurization tech, to produce “highly desulfurized lead paste and ammonium sulfate as by product, which is easily saleable as fertilizer”.
The facility will comprise an automated scrap batteries feeding system, together with systems for magnetic metals separation, battery crushing with an STC hammer mill, components separation, paste filtration with membrane squeezing, a fully automatic filter press, electrolyte collection and neutralization and a general ventilation and gas scrubbing system.
STC said the components separation system will be able to recover polypropylene chips, PE separators, fine metallic lead, poles and posts, fine paste, coarse paste and clean electrolyte.