28-05-2008

MPR Services Granted Patent for Improving the Conversion of Oxazolidones to Alkanolamines

MPR Services, Dickinson, Texas, has been granted United States Patent #7,323,600 for a regeneration process for converting oxazolidones such as hydroxypropyloxazolidone (HPOZD) to DEA or DIPA, dependent on the solvent used. Michael Turoff, MPR Associate Scientist, was the primary developer of this new process. This patented process constitutes a major efficiency breakthrough for MPR's OXEX™ service allowing the achievement of 95% to 98% conversion efficiency at a much lower operating cost.

Dennis Nelsen, vice-president of sales and marketing, stated, .customers utilizing this new technology will receive an increased economical return on their investment as it will help minimize disposal problems. The waste is a biodegradable brine and the OXEX Process will result in an increase in the amount of the amine component (DEA or DIPA) recovered and returned back to their systems with minimal solvent losses.. Additional information on this new process may be found at www.mprservices.com.

MPR Services, Inc., Dickinson, Texas, provides both mobile and permanently installed OXEX services on a world wide basis. In addition, MPR provides technologically advanced equipment, processes and analytical services for cleaning and recovery of amine and glycol solutions used in oil refining, gas processing, ammonia production and steel manufacturing.

MPR is a subsidiary of Tessenderlo KERLEY, Inc., (TKI), Phoenix, Arizona. TKI manufactures and markets sulfur-based products, fertilizers and pesticides to the agricultural, process and mining industries in North, Central and South America and selected foreign countries. TKI is part of Tessenderlo Group, Brussels, Belgium, a worldwide leader in chemical manufacturing and marketing.

Sulfinol-D® is a registered trademark of Shell Oil Company; OXEX is a trademark of MPR Services, U.S.A.