Ewell F Dillard

Title: Ewell F. Dillard: Innovator in Fertilizer Technology

Introduction

Ewell F. Dillard is a notable inventor based in Florence, AL (US), recognized for his contributions to the field of fertilizer technology. With a total of 5 patents, Dillard has made significant advancements in the production of stable ammonium orthophosphate suspension fertilizers and urea phosphate.

Latest Patents

Dillard's latest patents include a method for creating stabilized ammonium orthophosphate suspensions. This innovative process utilizes readily available equipment at the fertilizer dealer level to produce high-analysis stable fertilizers. By ammoniating solid intermediates derived from wet-process orthophosphoric acids, Dillard's method effectively incorporates fluorosilicic acid, a by-product of the phosphate industry, to convert it into ammonium fluoride. This approach allows for the precipitation of metallic impurities as fluoride compounds, enhancing the stability and storage life of the suspension.

Another significant patent involves a two-stage continuous crystallization process for the production of urea phosphate. This process reacts impure wet-process orthophosphoric acid with urea while simultaneously adding an acidifying agent. This addition decreases the pH during crystallization, improving the purity of the crystalline urea phosphate product and prolonging the useful storage life of the recycle mother liquor.

Career Highlights

Ewell F. Dillard is associated with the Tennessee Valley Authority, where he has applied his expertise in fertilizer technology. His innovative approaches have contributed to advancements in agricultural practices and the efficiency of fertilizer production.

Collaborations

Dillard has worked alongside notable colleagues such as Alva W. Frazier and Harry T. Lewis, contributing to a collaborative environment that fosters innovation in the field.

Conclusion

Ewell F. Dillard's work in fertilizer technology exemplifies the impact of innovation on agricultural practices. His patents reflect a commitment to improving the efficiency and effectiveness of fertilizer production, benefiting both the industry and the environment.