W. R. Grace & Co. announced that China Coal Shaanxi Energy & Chemical Group Co. Ltd. has expanded its license for Grace?s UNIPOL® PP process technology, doubling its polypropylene production capacity from 300 to 600 kilotons per annum (KTA).

The agreement also includes Grace?s UNIPOL UNIPPAC® process control software enabling China Coal Shaanxi Company to drive improvements in metrics such as throughput, onstream time, and continuity.