GB481100A - Process for separating soluble and valuable constituents from sylvinite ores and product or products obtained thereby - Google Patents
Process for separating soluble and valuable constituents from sylvinite ores and product or products obtained therebyInfo
- Publication number
- GB481100A GB481100A GB2346836A GB2346836A GB481100A GB 481100 A GB481100 A GB 481100A GB 2346836 A GB2346836 A GB 2346836A GB 2346836 A GB2346836 A GB 2346836A GB 481100 A GB481100 A GB 481100A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potassium chloride
- chloride
- froth
- pulp
- oils
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
- B03D1/06—Froth-flotation processes differential
-
- 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
- C01D3/08—Preparation by working up natural or industrial salt mixtures or siliceous minerals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
To obtain potassium chloride from sylvinite ores, which consist mainly of sodium chloride and potassium chloride crystals together with small amounts of other mineral matter such as iron and manganese oxides, calcium and magnesium minerals, clays, &c., the sodium chloride and most of the other minerals are removed as a froth in a flotation process, the pulp being formed with a saturated solution of the ore, to which is added lead, bismuth, or both lead and bismuth. Any potassium chloride carried over in the froth is dissolved by heating and agitating the froth, the sodium chloride is then separated, and the liquid is mixed with the pulp from the flotation cells which contains solid potassium chloride. The mixture is cooled to crystallize the potassium chloride dissolved from the froth and sent to a dewaterer, the solid passing to a centrifuge where it may be washed with water or with saturated potassium chloride solution, and the liquid to a thickener which delivers the thickened product to the centrifuge. The potassium chloride obtained contains small amounts of oxides of iron and manganese and is of a pinkish colour. The granules are also coated with a water-repelling coating comprising lime and magnesium soaps formed by the combination of the fatty acid or soap used in the flotation with lime and magnesium salts in the ore. The water-repellent properties, which prevent caking &c. of the chloride during transit, may be increased by adding oils, e.g. mineral oils, animal oils such as red oil or oleic acid, or vegetable oils such as cottonseed or coconut oils, before, during, or after drying the separated product. The presence of lead and/or bismuth in the pulp is stated to prevent crystallization of potassium chloride, even if the pulp is slightly cooled, unless solid chloride is present as "seed."
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2346836A GB481100A (en) | 1936-08-26 | 1936-08-26 | Process for separating soluble and valuable constituents from sylvinite ores and product or products obtained thereby |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2346836A GB481100A (en) | 1936-08-26 | 1936-08-26 | Process for separating soluble and valuable constituents from sylvinite ores and product or products obtained thereby |
Publications (1)
Publication Number | Publication Date |
---|---|
GB481100A true GB481100A (en) | 1938-02-28 |
Family
ID=10196095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2346836A Expired GB481100A (en) | 1936-08-26 | 1936-08-26 | Process for separating soluble and valuable constituents from sylvinite ores and product or products obtained thereby |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB481100A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107364876A (en) * | 2017-08-10 | 2017-11-21 | 青海盐湖工业股份有限公司 | A kind of method of potassium technique productions high-grade potassium chloride among utilization |
CN111250268A (en) * | 2020-01-20 | 2020-06-09 | 青海民族大学 | Flotation agent for direct flotation of potassium chloride, flotation composition and preparation method of potassium chloride |
-
1936
- 1936-08-26 GB GB2346836A patent/GB481100A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107364876A (en) * | 2017-08-10 | 2017-11-21 | 青海盐湖工业股份有限公司 | A kind of method of potassium technique productions high-grade potassium chloride among utilization |
CN111250268A (en) * | 2020-01-20 | 2020-06-09 | 青海民族大学 | Flotation agent for direct flotation of potassium chloride, flotation composition and preparation method of potassium chloride |
CN111250268B (en) * | 2020-01-20 | 2022-04-05 | 青海民族大学 | Flotation agent for direct flotation of potassium chloride, flotation composition and preparation method of potassium chloride |
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