Recycled minerals developer, Switzerland-based CalciTech Ltd, has developed two new applications for its patented processing technology, which extracts pure calcium carbonate from industrial waste. Given the increasing demand for making industrial processes more sustainable, this technology offers an attractive solution with the additional benefit of transforming the original mineral into a purer and more valuable form.
Synthetic calcium carbonate (SCC), a purer version of the widely used filler mineral GCC, relies on the preferential solution of calcium hydroxide entering the reactor vessel as a filtered, clear liquid, to react with waste carbon dioxide.
Two examples presented here, from Europe and China, could be applied globally. Both use CalciTech’s patented process which separates the mineral from insoluble impurities (IM March ‘09, p.65: CaCO3: Synthetic but effective).
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