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Britton E.R.,Mosaic Fertilizer LLC
Ammonia Plant Safety and Related Facilities

On October 11, 2006, the ammonia plant at Mosaic Fertilizer's Faustina facility suffered a catastrophic failure of its synthesis loop boiler feedwater heater when the inlet channel suddenly and completely separated from the body of the heat exchanger. The failure destroyed the heat exchanger and caused significant collateral damage to piping and equipment in the synthesis loop area. This paper presents the findings from the investigation into the cause of the failure, the subsequent testing of other synthesis loop equipment following the sudden depressurization of the synthesis loop, and lessons learned from incident. Source

Hagemo C.,Mosaic Fertilizer LLC
Energy Engineering: Journal of the Association of Energy Engineering

In today's world of rising energy prices and uncertain global energy supply, energy management is more relevant than ever. This article explores some fundamental aspects of how to develop a sustainable energy management program. While the specific details of the article deal primarily with a sulfuric acid plant integrated into a phosphate fertilizer manufacturing complex, the approach is applicable in just about any industry or for any utility. The key topics covered are the need for robust energy maps and models, the need for good leading and lagging indicators, and some practical results and suggestions from the author's experience with energy management. As the title suggests, the purpose of this article is not to introduce novel concepts or cutting edge technologies; instead, every effort has been made to eliminate the distractions of formulas and technical jargon so that the information presented can be useful to the department manager or utility engineer. Source

Prince Agri Products Inc., Granco Minerals Inc., Mosaic Fertilizer Llc and IMC Agrico Company | Date: 2000-10-03


Britton E.,Mosaic Fertilizer LLC | Gliebova K.,Mosaic Fertilizer LLC | Rembold T.,Clariant
Ammonia Plant Safety and Related Facilities

During a recent turnaround at Mosaic's St. James Ammonia Plant, a plant incident during theLTS reduction caused the pressure drop across the primary reformer to triple. Mosaic and Clariant Technical Services worked together to determine the cause of the primary reformer pressure drop increase and implement procedures to attempt salvaging the charge of reforming catalyst. This paper will discuss the troubleshooting that was completed, remedial action attempted, safety precautions taken following the shutdown to make sure the primary reformer and LTS were started back up safely, and lessons learned. Source

Yang Y.,University of Florida | Yang Y.,Chinese Academy of science | He Z.,University of Florida | Yang X.,University of Florida | And 4 more authors.
Communications in Soil Science and Plant Analysis

Most soils in Florida are very sandy, and water-soluble fertilizers (WSF) are subjected to leaching loss. Alternate fertilization is a promising practice to reduce such loss. Dolomite phosphate rock (DPR), which contains calcium, magnesium, and phosphorus, is potentially useful for agricultural production and landscaping plants. In this study, DPR fertilizers were developed from mixing of DPR material and N-viro soil. A typical agricultural soil (Alfisol) in Florida was used for greenhouse studies, and ryegrass and citrus seedlings were tested. The DPR fertilizers appeared superior to WSF for the growth of ryegrass based on dry-matter yield and nutrient concentrations in plant; however, it was not evident in citrus seedlings. DPR fertilizers were effective in raising pH (by 3 units) and electrical conductivity of acidic sandy soils and increasing soil organic matter, total nutrients, and available nutrients. The concentrations of copper, lead, and zinc in the plant tissues were less than toxicity limits. © 2012 Copyright Taylor and Francis Group, LLC. Source

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