GB915191A - Process for extraction of boric acid from colemanite or other minerals containing calcium borate - Google Patents

Process for extraction of boric acid from colemanite or other minerals containing calcium borate

Info

Publication number
GB915191A
GB915191A GB1658060A GB1658060A GB915191A GB 915191 A GB915191 A GB 915191A GB 1658060 A GB1658060 A GB 1658060A GB 1658060 A GB1658060 A GB 1658060A GB 915191 A GB915191 A GB 915191A
Authority
GB
United Kingdom
Prior art keywords
solution
colemanite
boric acid
containing calcium
extraction
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
GB1658060A
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.)
LARDERELLO SpA
Original Assignee
LARDERELLO SpA
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 LARDERELLO SpA filed Critical LARDERELLO SpA
Publication of GB915191A publication Critical patent/GB915191A/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
    • C01B35/00—Boron; Compounds thereof
    • C01B35/06—Boron halogen compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B35/00—Boron; Compounds thereof
    • C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
    • C01B35/10—Compounds containing boron and oxygen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Ores containing calcium borate, e.g. colemanite, are reacted with an aqueous solution containing ammonium carbonate or bicarbonate and ammonia to obtain a solution of ammonium borate which is filtered to remove solids including calcium carbonate, and the filtrate is boiled to concentrate it and to decompose the ammonium borate to boric acid and ammonia. The reaction is carried out at a temperature up to 90 DEG C. and at atmospheric pressure or above. The ore is first crushed and preferably is first calcined and then crushed. If it is not calcined it may be first reacted with solution from a previous reaction, the solution filtered and the solid material reacted again with fresh solution. Examples are given.
GB1658060A 1959-05-12 1960-05-11 Process for extraction of boric acid from colemanite or other minerals containing calcium borate Expired GB915191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT815759 1959-05-12

Publications (1)

Publication Number Publication Date
GB915191A true GB915191A (en) 1963-01-09

Family

ID=11125979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1658060A Expired GB915191A (en) 1959-05-12 1960-05-11 Process for extraction of boric acid from colemanite or other minerals containing calcium borate

Country Status (1)

Country Link
GB (1) GB915191A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756894A (en) * 1986-01-29 1988-07-12 Materias Primas Magdalena S.A.DE C.V. Process for the obtainment of boric acid from colemanite and/or howlite minerals
US4756745A (en) * 1986-01-29 1988-07-12 Materias Primas Magdalena, S.A.DE C. V. Process to benefit colemanite and/or howlite minerals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756894A (en) * 1986-01-29 1988-07-12 Materias Primas Magdalena S.A.DE C.V. Process for the obtainment of boric acid from colemanite and/or howlite minerals
US4756745A (en) * 1986-01-29 1988-07-12 Materias Primas Magdalena, S.A.DE C. V. Process to benefit colemanite and/or howlite minerals

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