Roldán D.

30 years teaching Excel courses in 5 levels to 11,373 people from 754 compa-nies and developing Administrative Applications and Engineering Applications using Excel, Macros, VBA, Databases, Dynamic Tables, Power Query, Power Pivot, Power BI 30 years as Business Consultant and Instructor of 60 Courses delivered to 11,373 people of 754 Companies. Development of Engineering Applications, Optimization of Processes: Alumina Plants, Urea, Petrochemicals, Ammonia, Direct Reduction o Iron Ore, Oil Refineries, NPK Fertilizers "Integration of Autodesk Plant Design Suite with Excel, Project, Engineering Calculations, Cobra and other Applications", Autodesk University, Las Vegas, 2012 48 improvements to the Lurgi Alumina Calcination Process. Conference "Ener-gy and Material Balance for Alumina Fluid Bed Calciners" Light Metals 1987 page 51, Denver, Colorado 22 years Project Manager, Engineering Manager, Head of Quality Control La-boratory, Process Engineer