Our Process


Our calcium-based mineral purification (CMP) process effectively and economically provides a means of purifying minerals such as chalk, gypsum, and, potentially, limestone and marble. Tests have successfully been performed on gypsum and chalk samples from across the world and the process has multiple potential uses in industry. Our process has been granted a patent in the UK and we have international patents filed. Whilst it can be run as a stand-alone process, we anticipate it could also be integrated with other chemical production processes (such as calcium carbonate and phosphoric acid) to increase efficiency and reduce costs.

Chalk and Gypsum

The CMP process has proven to be an effective method for purifying low whiteness and waste chalk to a grade that could be used for high white filler. It is also an effective method for purifying low quality and waste gypsum so they can be used for applications from plasterboard to high white fillers. Below are some of the benefits of using the CMP process when compared to other processes: