We have helped pioneer the advanced Hemi phosphoric acid process. Allies in this undertaking have included Yara (formerly Hydro)licensing department, HiTech Solutions Inc. (where John Wing was Sr. VP), several clients, and numerous equipment providers. Early stages of any phosphoric acid venture should include a thorough comparison of the conventional Dihydrate process versus the relatively newer Hemi process. The elaborate Hemi-Di process might also be considered where raw materials are expensive or where extra phosphogypsum purity is required.
The Hemi process is known for high product concentration & purity, energy efficiency, and avoiding need to grind phosphate concentrate. It adds major benefits downstream from the reaction & filtration sections – greatly reducing capital & operating costs and enhancing overall recovery. We understand keys to successful implementation of the Hemi process. We proved this in two early Hemi conversions - achieving rapid commissioning and superior performance of plants in USA and Canada.