GB1075167A - Purification of brine - Google Patents
Purification of brineInfo
- 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
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.++
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)
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 |
-
1965
- 1965-06-09 GB GB2440565A patent/GB1075167A/en not_active Expired
Cited By (3)
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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