GB910207A - Preparation of potassium hydrogen fluoride - Google Patents
Preparation of potassium hydrogen fluorideInfo
- Publication number
- GB910207A GB910207A GB2359060A GB2359060A GB910207A GB 910207 A GB910207 A GB 910207A GB 2359060 A GB2359060 A GB 2359060A GB 2359060 A GB2359060 A GB 2359060A GB 910207 A GB910207 A GB 910207A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potassium
- fluoride
- fluosilicic acid
- hydrogen fluoride
- potassium hydrogen
- 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
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/08—Compounds containing halogen
- C01B33/10—Compounds containing silicon, fluorine, and other elements
- C01B33/103—Fluosilicic acid; Salts 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
- C01D3/02—Fluorides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Saccharide Compounds (AREA)
Abstract
Potassium hydrogen fluoride is prepared by reacting fluosilicic acid with potsssium fluoride in aqueous solution. Preferably the fluosilicic acid and potassium fluoride are present in a molar ratio of 1:4. The potassium fluosilicate simultaneously formed is precipitated and may be removed and may be reacted with potassium hydroxide to form further potassium fluoride, silica being formed and removed. The potassium fluoride may also be formed by reaction of fluosilicic acid with potassium hydroxide, silica being removed as before. Preferably the fluosilicic acid is employed at 70 DEG C. as a 20% by weight aqueous solution. Such a solution may be obtained by passing gases resulting from phosphate and super-phosphate production into water after having removed impurities with a cold concentrated sulphuric acid scrub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2359060A GB910207A (en) | 1960-07-06 | 1960-07-06 | Preparation of potassium hydrogen fluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2359060A GB910207A (en) | 1960-07-06 | 1960-07-06 | Preparation of potassium hydrogen fluoride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB910207A true GB910207A (en) | 1962-11-14 |
Family
ID=10198140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2359060A Expired GB910207A (en) | 1960-07-06 | 1960-07-06 | Preparation of potassium hydrogen fluoride |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB910207A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019984A (en) * | 2018-09-13 | 2018-12-18 | 衢州市鼎盛化工科技有限公司 | A kind of method and system recycling efficient resource from glass thinning acid pickle |
| CN110589854A (en) * | 2019-10-24 | 2019-12-20 | 徐小岗 | Method for producing electronic-grade fluoride salt by using fluosilicic acid and fluosilicate |
-
1960
- 1960-07-06 GB GB2359060A patent/GB910207A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019984A (en) * | 2018-09-13 | 2018-12-18 | 衢州市鼎盛化工科技有限公司 | A kind of method and system recycling efficient resource from glass thinning acid pickle |
| CN110589854A (en) * | 2019-10-24 | 2019-12-20 | 徐小岗 | Method for producing electronic-grade fluoride salt by using fluosilicic acid and fluosilicate |
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