Introduction

This coal grinding system is integrated with a rotary lime calcination kiln of a leading company in the production of calcium carbide. As one of China's "Top 500 Chemical Enterprises" and a model of circular economy, this project extends the value chain in the production of BDO and PTMEG, consolidating the most complete industrial complex in the country according to the integrated model "coal - energy - basic chemicals / specialized metallurgy", in a sustainable approach.