OREANDA-NEWS. December 14, 2010.  RUR 1.4 billion investment project was launched two years ago by Phosphorit Industrial Group to replace worn-out sulphuric and wet-process phosphoric acid manufacturing equipment. This project involved planned shutdown repairs of the sulphuric acid manufacturing facilities that were completed in twenty days during November and included a number of major efforts like installing nearly 140 tonnes of gas flues (apart from flue dismantling), mounting two economizers and a steam superheater, and connecting two absorption towers, drying and final.

The project is intended to increase sulphuric acid output from 720,000 tons of monohydrate to 1,000,000 tonnes.

Implementation of this project stage will yield power savings and increase sulphuric acid manufacturing capacity by 6%.

The next phase is scheduled to begin next year and will involve connecting an integrated acid collector and a new A1 (HRS) absorption tower to provide low-pressure steam for the factory’s needs.

The project also involves converting the fourth technological system from dehydration to semi-dehydration operations in the wet-process phosphoric acid shop. The work is currently in the final stage and represents the company’s most ambitious upgrades for this shop during the entire post-Soviet era.

The innovation is designed to introduce new parameter-changing technology based on increasing the temperature and modifying the stoichiometric ratio of raw material components.

Completion of equipment replacement in the sulphuric and wet-process phosphoric acid shops will help stabilize the company’s subdivision operations in 2011, reduce apatite concentrate consumption by 800 tons per year, increase power output per ton of acid by 43% and reduce air emissions of fluoride (HF), sulphuric acid and diphosphorus pentoxide (P2O5) by 22.75, 46.64 and 30.52 tons per year respectively.