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Monday, May 4, 2020 | History

3 edition of Potential radiological impacts of recovery of uranium from wet-process phosphoric acid found in the catalog.

Potential radiological impacts of recovery of uranium from wet-process phosphoric acid

Oak Ridge National Laboratory. Chemical Technology Division

Potential radiological impacts of recovery of uranium from wet-process phosphoric acid

final report to the Environmental Protection Agency

by Oak Ridge National Laboratory. Chemical Technology Division

  • 292 Want to read
  • 35 Currently reading

Published by Dept. of Energy, Oak Ridge National Laboratory, for sale by the National Technical Information Service] in Oak Ridge, Tenn, [Springfield, Va .
Written in English

    Subjects:
  • Radioactive pollution -- Florida.,
  • Uranium.,
  • Phosphoric acid.

  • Edition Notes

    StatementW. Davis, Jr., ... [et al.], Chemical Technology Division.
    SeriesORNL/EPA ; 2
    ContributionsDavis, W. 1918-, United States. Environmental Protection Agency., Union Carbide Corporation.
    The Physical Object
    Paginationvi, 152 p. :
    Number of Pages152
    ID Numbers
    Open LibraryOL17650092M

    Sulphur and sulphuric acid: manufacturing of sulphur and sulphuric acid. phosphorus and phosophoric acid: wet process phosphoric acid, electric furnace phosphorus and phosphoric acid, single super phosphate and triple super phosphate. Chlor-alkali industries: salt, soda ash, baking soda, caustic soda, chlorine, hydrochloric acid.1/5(1). signals analysis analysis of sensitivity time series analysis systems analysis concurrent systems analysis electrical power systems analysis soils analysis auger and esca surface analysis analysis of tasks analysis of texts texture analysis traffic analysis analysis of traces uranium analysis financial viability analysis wine analysis speech.

    Phosphate fertilizers and elemental phosphorus Phosphoric acid (H3PO4) is produced by two methods: the thermal or furnace process and the wet process. The major emission from the thermal process is phosphoric acid mist in fine particulate form, but the wet process is a potential source of hydrogen fluoride and silicon tetrafluoride.5/5(2). “Under contract to the AEC, Gardinier (under the name U.S. Phosphoric Products) operated a pilot plant from to which recovered uranium from phosphoric acid. From to , it produced uranium by recovery of U3O8 from phosphoric acid. Maximum production was 60 tons of uranium concentrate per year.

    Reductive stripping process for the recovery of uranium from wet-process phosphoric acid. DOEpatents. Hurst, Fred J.; Crouse, David J. A reductive stripping flow sheet for recovery of uranium from wet-process phosphoric acid is described. Uranium is stripped from a uranium-loaded organic phase by a redox reaction converting the. The main topics under investigation in South Africa in the processing of uranium ore are the use of physical methods of concentration such as flotation, gravity concentration and wet high-intensity magnetic separation; the wider adoption of the 'reverse leach', in which prior acid leaching for uranium improves the subsequent extraction of gold.


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Potential radiological impacts of recovery of uranium from wet-process phosphoric acid by Oak Ridge National Laboratory. Chemical Technology Division Download PDF EPUB FB2

Get this from a library. Potential radiological impacts of recovery of uranium from wet-process phosphoric acid: final report to the Environmental Protection Agency. [W Davis; Oak Ridge National Laboratory.

Chemical Technology Division.; United States. Environmental Protection Agency.; Union Carbide Corporation.]. Robert O. Pohl papers, Collection Number: Potential Radiological Impacts of Recovery of Uranium from Wet-Process Phosphoric Acid.

January Box. Potential radiological impacts of recovery of uranium from wet-process phosphoric acid: final report to the Environmental Protection Agency by Oak Ridge National Laboratory (Book).

Radiological, chemical and morphological characterizations of phosphate rock and phosphogypsum from phosphoric acid factories in SW Spain Article in Journal of hazardous materials () Uranium Recovery From Phosphoric Acid via Hydrometallurgy and Solvent Extraction Although gypsum (CaPO 4 2H 2 O) is the major component of PG, it also contains metal impurities and some radionuclides that have potential health and environmental impacts (Rutherford et Author: M.N.V.

Prasad. Estimated contribution of theoretical uranium supply from phosphoric acid to uranium demand in Inglobal uranium production amounted to 54, t. The estimated recoverable amount of 11, t of uranium may have supplied 18% of the total world uranium demand of 63, t (Table B.1).Cited by: The industrial production of phosphoric acid (H 3 PO 4) from phosphate rock ore (mainly fluorapatite, Ca 5 (PO 4) 3 F) by the wet process (using H 2.

Uranium Recovery It has been estimated that the 12 phosphoric acid plants in the study area annually pass x 10 pounds ( x 10 kilograms) of U00 ; assuming j o constant throughput, the amount available for recovery will approximate x pounds ( x kilograms) from through and x pounds 5) Uranium recovery from all phosphoric acid 6) Impervious lining for recirculated process water ponds at chemical plants Required Reduced Water Usages A) Existing Facilities 1) Chemical Processing (including elemental phosphorus and animal feed ingredient plants).

phosphoric acid manufacture have been developed primarily for obtaining high P 2 O 5 recovery and high filtration rate. This is understandable since phosphoric acid is the raw material for fertilizers and therefore the efficiency and cost of the phosphoric acid plant is the main concern.

As a matter of fact, the filtration characteristics of the. Red mud (RM) is a by-product of extracting of alumina from bauxite. Red mud contains high quantities of alkali-generating minerals and metal ions, which can cause significant environmental damage.

Many valuable components such as rare-earth elements, Al, and Fe, in RM are difficult to be utilized owing to their particle size and alkalinity. Thus, developing an economical and Cited by: 4. The high-grade phosphate ore will go through the wet process and pyrogenic process respectively to obtain the intermediate products of phosphoric acid and phosphorus, which can be used to produce various phosphate fertilizers and phosphates.

The requirements for phosphate concentrate used in wet. The highest risk score for potential environmental significance of P fertiliser borne trace element contaminants was found for uranium, followed (in decreasing order) by cadmium, mercury, boron, fluoride, selenium, arsenic, silver and rare earth elements.

The lowest score (rank 28) was attributed to by: 7. [62] Dorozhkin, S.V. Fundamentals of the wet-process phosphoric acid production. Kinetics and mechanism of the phosphate rock dissolution. Ind. Eng. Chem. Res.35, [63] Dorozhkin, S.V.

Fundamentals of the wet-process phosphoric acid production. kinetics and mechanism of CaSO4H2O surface crystallization and coating. The potential amount of uranium able to be recovered from WPA phosphoric acid streams is o tonnes U per year (global P 2 O 5 production in was Mt).

The economic benefit will be both in the value of the uranium and in reduced regulatory demands on disposal of low-level radioactive wastes arising from the WPA process. NEW. Final Programme is now available In andthe International Atomic Energy Agency (IAEA) held, at its Headquarters in Vienna, Austria, two major international symposia on uranium production and raw materials for the nuclear fuel cycle in order to discuss all aspects of uranium raw materials for the nuclear fuel cycle with an emphasis on ensuring the long term.

Full text of "Final supplement to the final environmental statement (Int. FES ): phosphate leasing on the Osceola National Forest, Florida" See other formats. Fluoride: The Ultimate Cluster Flux Folder 3A - Free ebook download as PDF File .pdf), Text File .txt) or read book online for free.

Information on fluoride and those associated with it. This folder contains mostly information on phosphates. This collection is dedicated to those who wrote the original works and made them available on the internet.4/5(1).

potential impacts upon the receiving water body as indicated by predictive mathematical water quality models, biological toxicity tests, and/or other environmental assessment techniques currently in use, established or recognized by relevant environmental scientific disciplines.

Reported VHMs reflect on potential as co- and by-product HMs from gold recovery operations. Excluding gold, VHMs average % of the HM suite in a range of †% (Table III).

Papers Bates Gill and James Mulvenon 1. Introduction. The doctrine and force structure of China's Strategic Rocket Forces (also known as the Second Artillery from the Chinese di er pao) remain some of the most heavily shrouded and poorly understood aspects of the Chineseas China undergoes a continued modernization of its nuclear forces, to include .The focal theme of IEC was “Environment and Development”, with subthemes on Land and Water Resource Management, Environmental Sanitation .The counterfoil in the bound book of forms shall be similarly marked "Duplicate" and initialed.

(not less than four lac and fifty thousand litres each) distributed round the factory with due regard to the potential fire risks in the factory.

active metals and like Fires in electric equipments Suitable type of equipment 2 Chemical.