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UST995006I4 - Method of removal of boron from aqueous solutions - Google Patents

Method of removal of boron from aqueous solutions Download PDF

Info

Publication number
UST995006I4
UST995006I4 US06/064,328 US6432879A UST995006I4 US T995006 I4 UST995006 I4 US T995006I4 US 6432879 A US6432879 A US 6432879A US T995006 I4 UST995006 I4 US T995006I4
Authority
US
United States
Prior art keywords
boron
calcium
aqueous solutions
removal
lime
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.)
Pending
Application number
US06/064,328
Inventor
John B. Farmer
John A. Kydd
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.)
US Borax Inc
Original Assignee
United States Borax 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 United States Borax and Chemical Corp filed Critical United States Borax and Chemical Corp
Application granted granted Critical
Publication of UST995006I4 publication Critical patent/UST995006I4/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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
    • C01B35/12—Borates
    • C01B35/126—Borates of alkaline-earth metals, beryllium, aluminium or magnesium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

Boron is removed from aqueous solutions by heating the solution to 60°-100° C. and adding a calcium compound such as lime to form a precipitate of calcium borate which is separated such as by filtration. Improved results are obtained by using other calcium salts such as calcium chloride in combination with lime. For solutions initially containing less than 100 ppm boron, calcium borate seed crystals are introduced.
US06/064,328 1979-04-25 1979-08-06 Method of removal of boron from aqueous solutions Pending UST995006I4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7914374 1979-04-25
GB14374/79 1979-04-25

Publications (1)

Publication Number Publication Date
UST995006I4 true UST995006I4 (en) 1980-06-03

Family

ID=10504764

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/064,328 Pending UST995006I4 (en) 1979-04-25 1979-08-06 Method of removal of boron from aqueous solutions

Country Status (1)

Country Link
US (1) UST995006I4 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052496A1 (en) * 1980-11-13 1982-05-26 ISTITUTO GUIDO DONEGANI S.p.A. Process for removing soluble boron compounds from aqueous effluents

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052496A1 (en) * 1980-11-13 1982-05-26 ISTITUTO GUIDO DONEGANI S.p.A. Process for removing soluble boron compounds from aqueous effluents

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