Silica from Hydro FluoSilicic Acid               
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Information  at a Glance Contents on the CD ROM
  • During the reaction of phosphate ore and sulphuric acid, silicon tetrafluoride (SiF4) and HF are formed as byproducts. These gases are usually scrubbed with water, forming fluorosilicic acid, H2SiF6 (FSA) as a waste stream.
  • Fluorosilicic acid contain 90% reactive silica that can be recovered and can be reused
  • Current uses of Fluorosilicic acid are production of aluminium fluoride, Metal Fluosilicates, Drinking water fluorination, preservation of timber, disinfection of brewery equipment, Concrete hardening and insecticides
  • The first attempts to develop a process that directly reacts FSA with sulphuric acid has been researched and many
    patents have been filed The production of AHF from FSA has now been commercialized and since 2008, plants are operating and the by product is Silica
  • Fluorosilicic Acid
  • Silica Fact sheet
Project Information
  • Technology Company
  • Hydrofluoric acid  Plant Supplier
  • Technology Consultant
  • Wet scrubbers
  • Production of hydrofluoric acid from fluorosilicic acid
  • Production of Anhydrous hydrofluoric acid from fluorosilicic acid
  • Phosphoric Acid Plant Cooling Water Treatment Process
  • Phosphoric Acid Cooling Tower
    process water.
  • Utilization of By-Product Waste Silica in Concrete–Based Materials
  • Water fluoridation and wood preservation.
  • Process for the production of high purity silica from waste by-product silica and hydrogen fluoride
  • Process of producing  hydrofluoric acid from fluorosilicic acid
  • Process of producing  hydrofluoric acid from fluorosilicic acid
  • Process of producing Hydrogen Fluorine from Fluosilicic Acid
  • Process of recovering Hydrogen Fluoric acid from aqueous Fluosilicic Acid
Market Scenario
  • FSA - Manufacturing Company
  • Fluorosilicic acid Industry - USA
  • Industry in China
  • Ammonium Phosphate Fertilizer Project proposal in India
  • Environmental, Health and Safety Guidelines for Phosphate Fertilizer Manufacturing

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