GB790457A - Improved process for the preparation of sodium chloride - Google Patents
Improved process for the preparation of sodium chlorideInfo
- Publication number
- GB790457A GB790457A GB17400/56A GB1740056A GB790457A GB 790457 A GB790457 A GB 790457A GB 17400/56 A GB17400/56 A GB 17400/56A GB 1740056 A GB1740056 A GB 1740056A GB 790457 A GB790457 A GB 790457A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per litre
- brine
- added
- evaporation
- sodium chloride
- 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
- C01D3/22—Preparation in the form of granules, pieces, or other shaped products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof
-
- 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
- C01D3/04—Chlorides
- C01D3/06—Preparation by working up brines; seawater or spent lyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Sodium chloride of high bulk density is prepared by the evaporation of brine containing compounds supplying nitrilotriacetate ions, preferably in a quantity between 1 and 100 mg. per litre. Dimethylglyoxim, preferably in a quantity between a 1/2 mg. and 50 mg. per litre may also be added to the solution. The crystallization may be effected by direct evaporation in a boiling zone or alternatively by preparing a supersaturated brine by evaporation and passing such a solution to a crystallizer with a movable bed where the crystals are withdrawn and the brine is returned for supersaturation. According to an example, nitrilotriacetic acid (20 mg. per litre) was added to brine and crystallization effected in the boiling zone of the evaporator. A further example relates to sodium nitrilotriacetate being added in a quantity of 30 mg. per litre with or without 5 mg. per litre of dimethylglyoxim. Specification 617,137 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL199026 | 1955-07-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB790457A true GB790457A (en) | 1958-02-12 |
Family
ID=19750716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17400/56A Expired GB790457A (en) | 1955-07-19 | 1956-06-05 | Improved process for the preparation of sodium chloride |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH351258A (en) |
DE (1) | DE1025847B (en) |
GB (1) | GB790457A (en) |
NL (1) | NL84673C (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126253A (en) * | 1964-03-24 | Process for the manufacture of finely | ||
DE1224286B (en) * | 1958-12-01 | 1966-09-08 | Ici Ltd | Method of preventing sodium chloride from caking |
US3133824A (en) * | 1959-10-16 | 1964-05-19 | Bayer Ag | Process for the production of finely dispersed calcium carbonate |
DE1221086B (en) * | 1961-09-07 | 1966-07-14 | Corn Products Co | Process for cleaning table salt from trace elements |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB617137A (en) * | 1946-09-20 | 1949-02-01 | Donald Anderson Crooks | Manufacture of common salt from brine |
-
0
- NL NL84673D patent/NL84673C/xx active
-
1956
- 1956-06-05 GB GB17400/56A patent/GB790457A/en not_active Expired
- 1956-07-13 DE DEN12480A patent/DE1025847B/en active Pending
- 1956-07-18 CH CH351258D patent/CH351258A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL84673C (en) | |
CH351258A (en) | 1961-01-15 |
DE1025847B (en) | 1958-03-13 |
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