GB785015A - Improvements in or relating to method of preparing agglomerate calcium phosphate andthe product resulting from said method - Google Patents

Improvements in or relating to method of preparing agglomerate calcium phosphate andthe product resulting from said method

Info

Publication number
GB785015A
GB785015A GB17540/55A GB1754055A GB785015A GB 785015 A GB785015 A GB 785015A GB 17540/55 A GB17540/55 A GB 17540/55A GB 1754055 A GB1754055 A GB 1754055A GB 785015 A GB785015 A GB 785015A
Authority
GB
United Kingdom
Prior art keywords
calcium phosphate
relating
product resulting
phosphatic
andthe product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB17540/55A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Minerals and Chemical Corp
Original Assignee
International Minerals and Chemical Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Minerals and Chemical Corp filed Critical International Minerals and Chemical Corp
Publication of GB785015A publication Critical patent/GB785015A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
    • C01B25/328—Defluorination during or after the preparation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Materials For Medical Uses (AREA)

Abstract

Fluorine-free dicalcium phosphate bonded with acidic calcium-containing phosphatic material, preferably mono-calcium phosphate, to give a product with CaO/P2O5 ratio of 1.55/1.0 to 1.95/1.0 is usually prepared by mixing the phosphatic solution with dicalcium phosphate of particle size less than 80 mesh and drying the mixture, e.g. between 90-120 DEG C. The phosphatic solution may be the product of treatment of superphosphate. The phosphatic solution usually has a CaO/P2O5 ratio of 0.2/1.0 to 1.0/1.0. Specification 785,016 describes a similar method using solutions of free acids as bonding agents.
GB17540/55A 1954-06-18 1955-06-17 Improvements in or relating to method of preparing agglomerate calcium phosphate andthe product resulting from said method Expired GB785015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US785015XA 1954-06-18 1954-06-18

Publications (1)

Publication Number Publication Date
GB785015A true GB785015A (en) 1957-10-23

Family

ID=22144414

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17540/55A Expired GB785015A (en) 1954-06-18 1955-06-17 Improvements in or relating to method of preparing agglomerate calcium phosphate andthe product resulting from said method

Country Status (1)

Country Link
GB (1) GB785015A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210054479A1 (en) * 2018-03-01 2021-02-25 Jfe Steel Corporation Method for manufacturing manganese raw material and method for manufacturing manganese-containing molten steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210054479A1 (en) * 2018-03-01 2021-02-25 Jfe Steel Corporation Method for manufacturing manganese raw material and method for manufacturing manganese-containing molten steel

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