latest news: Phosphate Industry
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How much fluorine is too much fluorine?
For most of us, our closest encounter with the element fluorine is likely to be our toothpaste or a municipal water supply with added fluoride. But excess fluorine can be a problem. For example, high levels of fluorine in the soil can hurt plants. Fluorine in soils may also affect microbes and other organisms higher […]
New Zealand Phosphate Industry -
Arkema to build novel hydrofluoric acid facility
Arkema and Nutrien will build an anhydrous hydrogen fluoride facility at Nutrien’s site in Aurora, North Carolina, that will use by-product fluorine–containing minerals from phosphate mining as raw material rather than traditional mined fluorspar. Arkema will pay for the $150 million facility, which will supply the firm’s fluorine chemicals plant in Calvert City, Kentucky. Arkema […]
United States, North Carolina Phosphate Industry -
Federal Register – Proposed Rule on Mercury from Phosphoric Acid Manufacturing
[[Page 19418]] – Table 1 to Subpart AA of Part 63–Existing Source Emission Limits a b You must meet the emission limits for the specified pollutant for the following existing sources Total fluorides Wet-Process Phosphoric Acid Line….. 0.020 lb/ton of equivalent P2O5 feed. Superphosphoric Acid Process Line c.. 0.010 lb/ton of equivalent P2O5 feed. […]
United States, National USA Phosphate Industry -
Univar Solutions Brings on Hydrofluorosilicic Acid in Water Treatment from Mosaic
DOWNERS GROVE, Ill., March 2, 2020 /PRNewswire/ — Univar Solutions Inc. (NYSE: UNVR), a global chemical and ingredient distributor and provider of value-added services, announced today that in late 2019 it purchased certain assets of The Mosaic Company’s hydrofluorosilicic acid (HFS) business. Univar Solutions is a leading supplier to the water treatment market, including the […]
United States, National USA Phosphate Industry -
Removal of fluoride from fertilizer industry effluent using carbon nanotubes stabilized in chitosan sponge
Highlights All assays were performed using gas scrubber effluent from the production of fertilizer industry. Carbon nanotube was anchored onto chitosan sponge and used like adsorbent. The adsorption capacity for fluoride reach around 975.4?mg?g?1 in kinetic assays. Reuse and regeneration were investigated and 5 cycles were obtained. The adsorption capacity kept similar values in all […]
International Phosphate Industry -
Hydrogen fluoride concentrations in ambient air of an urban area based on the emissions of a major phosphogypsum deposit (SW, Europe)
Highlights Several HF impacts have been recorded and associated to the PG deposit. Impacts are more numerous in winter but more concentrated in the warm season. PG deposit is susceptible to emit HF through its solid and liquid phases. The emission factors of the brines, settled in 2.7 kg/ha day, is the most important. Abstract […]
Spain Phosphate Industry -
Removal of fluoride from fertilizer industry effluent using carbon nanotubes stabilized in chitosan sponge.
Highlights All assays were performed using gas scrubber effluent from the production of fertilizer industry. Carbon nanotube was anchored onto chitosan sponge and used like adsorbent. The adsorption capacity for fluoride reach around 975.4 mg g-1 in kinetic assays. Reuse and regeneration were investigated and 5 cycles were obtained. The adsorption capacity kept similar values […]
International Phosphate Industry -
Mosaic submits ‘Critical Condition Report’ to FDEP, EPA
BARTOW – In less than one year’s time, there have been three incidents at Mosaic’s Bartow facility that were serious enough to mandate staff to alert government regulators, including one incident that occurred as recently as last month. Based on Florida Department of Environmental Protection (FDEP) public records, cracks were discovered on the south and […]
United States, Florida Pesticides Phosphate Industry -
Long term geochemical variation of brines derived from a major phosphogypsum pond of SW Europe.
Highlights Geochemical variations of brines depend on dilution and evaporation. The recharge with brines generated in the PG stack produces dilution. Highest concentrations are shown in summer, except for F?. The removal of layered salts and brines in summer should be considered. Abstract The chemical evolution of brines resulting from an inactive phosphogypsum pond derived […]
Spain Phosphate Industry -
The geochemical evolution of brines from phosphogypsum deposits in Huelva (SW Spain) and its environmental implications.
Highlights The brines in PG ponds are extremely enriched in F, Na, Cl, Ni, Cd, Mn, Cu, Zn, and U. Brine composition is strongly seasonal and spatial dependent. The enrichment in aged brines is caused by precipitation and re-dissolution processes. Brine evaporation produces multi-layered trace-element rich precipitates. Abstract The present study focuses on the geochemistry […]
Spain Phosphate Industry