Technical Papers

Fertilizers

“Phosphoric Acid Plant for PMP,” Alaoui Mohamed Belghiti and Marten D. Walters, presented at Conference Covaphos II, Hotel Atlas Marrakech, 09-11 November 2006

"MegaPhosphates – Large-scale Phosphoric acid and Granulation Plants," Marten D. Walters, David M. Ivell, and Joseph I. Bull, presented at Phosphates 2006, Brussels, April 2006

"Energy Saving Options in Granulation Plants ," C. B. Snyder and M. D. Walters, presented at the Central Florida AIChE Convention, Clearwater, FL, June 2003 

"Wastewater Recycling Project at Rhodia, Mexico," Christopher B. Earl, presented at Central Florida AIChE Convention, Clearwater, FL, June 2001 

"Revamp of the Ultrafertil Phosphoric Acid Plant," M. D. Walters, M. B. Ribiero and J. Sinden, presented at IFA Technical Conference, New Orleans, October 2000

"Modeling the Complex Chemical Reactions and Mass Transfer in a Phosphoric Acid Reactor," P.M. Mathias, C?C Chen, and M. D. Walters presented at Third Joint China/USA Chemical Engineering Conference, Beijing, China, September 2000

"Granulation Plant Simulation using Aspen Plus," J. Sinden, M. D. Walters, P. M. Mathias and M. Mendez, presented at Central Florida AIChE Convention, Clearwater, FL, June 2000

"Waste Minimization Program for Fertilizer Plants in Lithuania and Poland," Marten Walters, KEMWorks Technology, Inc. and Thomas Miller, Cargill Fertilizer, Inc., presented at International Workshop on Current Environmental Issues of Fertilizer Production, Prague, May 1999.

"Options to Increase Capacity/Operating Factor & to Increase Recovery in a Phosphoric Acid Plant," Paul Smith & Alain Bourgot, presented by Marten Walters at Regional Phosphate Conference, Lakeland, FL, October 1996.

"Prayon/KEMWorks Phosphoric Acid Roundtable," presented at Clearwater, FL, May 1996.

"Revamp of J. R. Simplot Phosphoric acid Plant," K. J. Hutter, J. Samuelson, M. D. Walters and C. B. Earl, presented at Central Florida AIChE Convention, Clearwater, FL, May 1995.

"Cooling Ponds and Gypsum Stacks, Past - Present - Future," C. B. Earl and M. D. Walters, presented at Regional Phosphate Conference, Lakeland, FL, October 1994.

"Plant Air Quality Improvement Projects at J. R. Simplot," M. D. Walters and K. J. Hutter, presented at Regional Phosphate Conference, Lakeland, FL, October 1993.

"Phosphate Fertilizer and the Environment," C. B. Earl, presented at IFDC International Workshop, Tampa, FL., March 1992.

"Phosphogypsum Process Update," T. J. Kendron and C. B. Earl, ACHEMA 88; Frankfurt Germany; June, 1988.

"Test Plant Status - Waste Gypsum Utilization," T. J. Kendron, Fertilizer Roundtable; New Orleans, LA; November, 1987.

"Aggregate Production Unit," T. J. Kendron and G. M. Lloyd, AIChE Annual Meeting; Clearwater, FL; May, 1987.

"Phosphogypsum to Sulfuric Acid with Cogen," T. J. Kendron and G. M. Lloyd, International Symposium on PhosGypsum; Miami, FL; Dec 1986.

"Phosphogypsum - A Problem to an Opportunity," T. J. Kendron and J. H. Marten, National AIChE Meeting; New Orleans, LA; April, 1986. 

"Sulfur Dioxide from Gypsum," T. J. Kendron and G. M. Lloyd, American Chemical Society; Chicago, IL; October, 1985.

"Analysis of Design Options in Modern Granulation Plants," M. D. Walters and J. V. Galluzzo, presented at AIChE National Meeting, New Orleans, LA, Spring 1986.

"Sulfur Dioxide from Phosphogypsum - New Signs of Life?"  T. J. Kendron, G. M. Lloyd and C. B. Earl, British Sulphur Corporation - Sulfur 85, London England; February, 1985

"Prayon High Strength Phosphoric Acid Process," Chris Earl, Armand Davister and Francis Thirion, Central Florida AIChE meeting, May 1985.

Animal Nutrients

"Animal Feed PhosphatesTechnology," Chuck Snyder and Marten Walters, presented at Central Florida AIChE Convention, Clearwater, FL, June 2002. 

"Foscalcio 2700- Dicalcium Phosphate Plant," John Sinden, JEATech, Neil Greenwood, KEMWorks Technology, Inc., presented at Central Florida AIChE Convention, Clearwater, FL, May 1998.

Mining

"GPS An Integrated Mining Application," Stephen M. Neas, presented at Regional Phosphate Conference, Lakeland, FL, October 1996.

"Software Methods to Determine Phosphate Ore Minability," Robert T. Parks and Stephen M. Neas, presented at Regional Phosphate Conference, Lakeland, FL, October 1991. 

Uranium Recovery

“Technologies for Extraction of Uranium from Phosphoric Acid,” Marten Walters, Thomas Baroody and Wes Berry (K-Technologies), presented at the Central Florida AIChE Clearwater Conference June 2008

“Uranium Recovery from Phosphoric Acid,” Marten Walters, Thomas Baroody and Wes Berry (K-Technologies), presented at Phosphates 2008, Paris, February 2008

Other 

"Security Vulnerability Analysis", Chuck Snyder and Marten Walters, presented at the 18th Annual Regional Phosphate Conference, Lakeland, Florida, October, 2003