patented for thermal phosphate recovery process

Process for recovery of phosphorus and aluminum compounds ,, This paper presents a study on an alkaline wet-process for the solubilization of aluminum phosphate ore from the state of Maranhão, Brazil By processing a sample from Trauíra Island containing 27% P 2 O 5 and 29% Al 2 O 3 , extraction efficiencies of about 70% for P ,US Patent for Multiple, A multiple-stage thermal beneficiation process for phosphate ores which comprises calcining a phosphate ore in a first stage at a temperature sufficient to destroy substantial quantities of organic impurities in the phosphate ore but not so high as to cause excessive sulfide formation; followed by the calcining of the product from the first stage in a second stage at a temperature at which an ,Phosphate sequestration and recovery from eutrophication ,, The sorption process involves the magnesium ion release from MCSF in solution, the phosphate anion from solutions onto the adsorbing MgCO 3 through electrostatic attraction due to the presence of positive charge, and the in situ reaction between MgCO 3 and phosphate to conversion of the non-crystal-structure compound of Mg 3 (PO 4) 2AP, 8922 Thermal Process Acid Production - Raw materials for the production of phosphoric acid by the thermal process are elemental (yellow) phosphorus, air, and water Thermal process phosphoric acid manufacture, as shown schematically in Figure 89-2, involves 3 major steps: (1) combustion, (2) hydration, and (3) demistingPhosphorous recovery from sewage sludge using calcium ,, The thermodynamic parameters indicated that the phosphate recovery process was endothermic and spontaneous The phosphate adsorption capacity on C-S-H ,.

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Technological Options for Phosphate Removal and Recovery ,, Ion exchange is promising for phosphate recovery because it is generally a reversible process [26] and the recovered phosphate could be collected in the form of high-grade fertilizer (struvite) A formidable competition posed by sulphate contained in the wastewater limits the phosphate removal capacity of many commercial anion exchangersPhosphoric acid recovery from concentrated aqueous feeds ,, and precipitation stag In the thermal process, phosphorus is rst produced by reduction of the phosphate rock, followed by re-oxidation and hydration to give phosphoric ac Despite the production of a very high-grade phosphoric acid, the thermal route has ,Thermal Hydrolysis Biosolids Technology | Lystek, Lystek THP is a unique, physical-chemical thermal hydrolysis process involving high-speed shearing, alkali, and low-pressure steam injection The technology has the ability to process digested or undigested residuals to produce a multi-purpose, hydrolyzed product, with multiple potential benefits for full-cycle resource recoveryUS9061221B2, A process for recovering reusable materials, in particular phosphate, from sewage sludge products, namely sewage sludge, sewage sludge ash or sewage sludge slag, by extraction, in which a suspension of the sewage sludge product is produced in water, alcohol, water-alcohol mixture or an aqueous solution, gaseous carbon dioxide (CO 2 ) or supercritical carbon dioxide (scCO 2 ) is introduced as ,Frontiers | Nitrogen and Phosphorus Recovery From ,, Although phosphorus recovery and reuse is of great importance to reduce phosphate rock dependency and also to avoid pollution of water resources, P recovery is barely carried out currently due to the higher production costs of recovered P compared to those of mined P (Egle et al, 2016; Peng et al, 2018).

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The 3R Zero Emission Pyroylsis & Phosphorus Recovery ,, Dec 14, 2020· The 3R zero emission pyrolysis is an advanced and added value recycling and reuse of un-exploited biomass for recovery of concentrated Phosphorus and natural BioPhosphate products In a world with finite resources there is no infinite development opportunity with sustainability, unless circular economy is not fully implemented In this context there is no one fit for all processing technology ,Thermal Processing in the Fertilizer Industry, Thermal Processing Systems Fluid Bed GEA Barr-Rosin Fluid Beds are increasingly used for a broad range of fertilizer products Capital cost, size and weight are reduced compared with conventional systems Drying and cooling time is also shorter as the high heat transfer coefficient is achieved in the fluidized state The process is gentle ,(PDF) A process for making slow, The process leaves no solid waste and retains all the nutrients available in the source rockIn the present study the thermal phosphate was successfully produced from LGO by adding serpentinite 12 that is locally available as waste product of the décor stone industry ,US Patent for Process for the manufacture of potassium ,, 15 A process as claimed in claim 13, wherein the proportions of reagents -- amine, phosphoric acid and potassium salt KA -- are such that in the aqueous extract from the anion exchange there shall exist a weight ratio of Ksub2 O to Psub2 Osub5 ranging from 2:3 to 1:1, the lower limit representing the composition of monopotassium phosphate only and the higher limit representing ,CN201942519U, The thermal energy recovery and utilization device in production of thermal phosphoric acid belongs to the technical field of the energy saving and emission reduction A production line main body consists of a yellow phosphorus evaporation burning tower, a thermal energy recovery device (a steam boiler) and a hydration tower The yellow phosphorus flowing into the evaporation burning tower ,.

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Thermal treatment of phosphate rock (Patent) | OSTIGOV, @article{osti_5889698, title = {Thermal treatment of phosphate rock}, author = {Mair, A D}, abstractNote = {An improved process for double-stage calcining organic matter contaminated phosphatic apatite rock of the mineral class generally known as francolites is described The improved process results in the effecting of an intermediate phosphate rock calcine in a form eminently suitable for ,Thermal Treatment, Advanced thermal treatment (ATT) (advanced conversion) Gasification Plasma gasification Pyrolysis Alternative and emerging techniques Thermal depolymerisation (derive light crude oil) Hydrothermal carbonisation (heat and pressure replicates coal) Waste to biofuels/ chemicals Energy recovery CHP and heat distribution Flue gas treatmentSusPhos, The patented SusPhos process is a robust process that can produce a variety of market known, high-quality phosphate products These range across several markets, including the flame-retardant and fertilizer industriphosphate processing crusher, phosphate processing crusher Crawler Mobile Crusher Combination Mobile Crushing Plant C6X Series Jaw Crusher Processing And Refining Of Phosphate Processing And Refining Of Phosphate This refining process can treat almost any kind of edible oils and fats but it involves the producalkali tion of soapstocks and has a refined oil yield lower than the one physically obtainable even if of more ,Processes for the manufacture of feed, The invention relates to a combined process for the manufacture of feed grade dicalcium phosphate and pure phosphoric ac The process comprises the reaction of an excess of phosphate rock with aqueous solutions of a mineral acid selected from hydrochloric acid, phosphoric acid and nitric acid, characterized by the fact that the free acidity of the dissolution liquor does not exceed 60% and ,.

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PROCESS FOR THE RECOVERY OF PHOSPHATE FROM PHOSPHATE ROCK ,, There is disclosed a wet process for the recovery of phosphate from phosphate rock which comprises leaching finely divided particles of phosphate rock with a protic acid at a temperature and for a time that favours dissolution, into a leachate, of the phosphate in ,Our patented technology transforms livestock ,, Our patented thermal processing technology eliminates all potential pathogens in the manure without charring or burning , phosphate, potassium (NPK) ratios , the electricity produced earlier in the process by the natural gas turbine can be sold to the host farm, third parties or back to the gr A solution for virtually any livestock ,