GB1075167A - Purification of brine - Google Patents

Purification of brine

Info

Publication number
GB1075167A
GB1075167A GB2440565A GB2440565A GB1075167A GB 1075167 A GB1075167 A GB 1075167A GB 2440565 A GB2440565 A GB 2440565A GB 2440565 A GB2440565 A GB 2440565A GB 1075167 A GB1075167 A GB 1075167A
Authority
GB
United Kingdom
Prior art keywords
brine
treating
impure
nh4co3
nh4hco3
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
GB2440565A
Inventor
John Huxtable Bendle
Thomas Mervyn Mudd
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.)
Cerebos Foods Ltd
Original Assignee
Cerebos Foods Ltd
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 Cerebos Foods Ltd filed Critical Cerebos Foods Ltd
Priority to GB2440565A priority Critical patent/GB1075167A/en
Publication of GB1075167A publication Critical patent/GB1075167A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/14—Purification
    • C01D3/16—Purification by precipitation or adsorption

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

A cyclic process for the purification of impure calcium-containing brine comprises: (i) treating the impure brine with a brine which contains NH4CO3 whereby CaCO3 is precipitated and removed; (ii) evaporating water from the brine to precipitate NaCl which is recovered; (iii) treating the residual brine with Ca(OH)2 whereby CaSO4 is precipitated and removed; (iv) treating the resultant brine with CO2 to produce an ammonium carbonate-containing brine for use in a further cycle of the process. Prior to step (i) the impure brine, which may contain CaHCO3 and Mg salts as impurity, may be treated with Ca(OH)2 to precipitate CaCO3 and Mg(OH)2. In step (iii) the amount of Ca(OH)2 added is preferably substantially equivalent to the (NH4)2SO4 present in the brine. In step (iv) the brine may be divided into two parts, preferably equal, one part being saturated with CO2 to form NH4HCO3 in the brine, which is mixed with the other part whereby NH4HCO3 is converted to NH4CO3. The process of the invention yields a brine containing less than 0.015% by weight Ca.++
GB2440565A 1965-06-09 1965-06-09 Purification of brine Expired GB1075167A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2440565A GB1075167A (en) 1965-06-09 1965-06-09 Purification of brine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2440565A GB1075167A (en) 1965-06-09 1965-06-09 Purification of brine

Publications (1)

Publication Number Publication Date
GB1075167A true GB1075167A (en) 1967-07-12

Family

ID=10211233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2440565A Expired GB1075167A (en) 1965-06-09 1965-06-09 Purification of brine

Country Status (1)

Country Link
GB (1) GB1075167A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212147A (en) * 1987-11-10 1989-07-19 Mannesmann Ag Sodium chloride crystallisation
CN104326490A (en) * 2014-11-12 2015-02-04 中盐工程技术研究院有限公司 Method and device for continuously purifying brine through lime-mirabilite-flue gas process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212147A (en) * 1987-11-10 1989-07-19 Mannesmann Ag Sodium chloride crystallisation
GB2212147B (en) * 1987-11-10 1991-10-09 Mannesmann Ag A method and apparatus for processing waste solutions from flue gas cleansing plants
CN104326490A (en) * 2014-11-12 2015-02-04 中盐工程技术研究院有限公司 Method and device for continuously purifying brine through lime-mirabilite-flue gas process

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