DE446492C - Process for the production of complex hydrofluoric acid - Google Patents
Process for the production of complex hydrofluoric acidInfo
- Publication number
- DE446492C DE446492C DEH95078D DEH0095078D DE446492C DE 446492 C DE446492 C DE 446492C DE H95078 D DEH95078 D DE H95078D DE H0095078 D DEH0095078 D DE H0095078D DE 446492 C DE446492 C DE 446492C
- Authority
- DE
- Germany
- Prior art keywords
- production
- hydrofluoric acid
- complex
- complex hydrofluoric
- acid
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Description
Verfahren zur Herstellung von komplexer Fluorwasserstoffsäure. Die vorliegende Erfindung betrifft eine weitere Ausbildung des durch Patent q.45 196 geschützten Verfahrens zur Herstellung von Kieselflußsäure. Es wurde gefunden, daß nicht allein die Kieselflußsäure, sondern sämtliche komplexen Fluorwasserstoffsäuren unter gleicher Ersparnis von Schwefelsäure dargestellt werden können. Man geht zu diesem Zweck wie bei dem Verfahren des Hauptpatentes nicht von den Oxyden bzw. Hydroxyden des in den Komplex einzuführenden Metalls oder Metalloids aus, sondern verwendet direkt die betreffenden Fluoride.Process for the preparation of complex hydrofluoric acid. the The present invention relates to a further embodiment of the patent q.45 196 protected process for the production of silicofluoric acid. It was found that not only hydrofluoric acid, but all complex hydrofluoric acids can be represented with the same saving of sulfuric acid. One goes to for this purpose, as in the process of the main patent, not from the oxides or hydroxides of the metal or metalloid to be introduced into the complex, but used directly the relevant fluoride.
Borfluorw asserstoff läßt sich nach dein vorliegenden Verfahren in der Weise gewinnen, daß ein Gemisch von i Mol. Flußspat, 2 Mol. Borfluorid und i Mol. Schwefelsäure miteinander zur Umsetzung gebracht werden. Die Umsetzung verläuft quantitativ. Es scheidet sich Gips aus, von dem der entstandene Borfluorwasserstoff leicht abgetrenit werden kann.Borofluorohydrogen can be used in the present process win the way that a mixture of 1 mol. Fluorspar, 2 mol. Boron fluoride and i Mol. Sulfuric acid are brought to react with one another. The implementation is progressing quantitatively. Gypsum precipitates, from which the resulting borofluoride can be easily detached.
Beispiele. i. 78 kg Flußspat vermischt man mit 400 kg 25prozentiger Schwefelsäure. In das Gemisch werden 136 kg Borfluorid eingeleitet. Es scheiden sich 136 kg Calciumsulfat in leicht filtrierbarer Form ab, während die überstehende Mutterlauge aus .I75 kg 37prozentiger Borfluorwasserstoffsäure bes,ehi.-2. In ein Gemisch von 78 kg Calciumfluorid mit 4oo kg 25prozentiger Schwefelsäure läßt man 164k-- Titanfluorid hinzutreten. Bald nach der Zugabe scheidet sich Calciumsulfat aus, das sich in einer Menge von 136 kg in feiner Form rasch zu Boden setzt. Die überstehende Flüssigkeit besteht aus 365kg Titanfluorwasserstoffsäure (45prozentig), die durch einfaches Abfiltrieren gewonnen werden können.Examples. i. 78 kg fluorspar is mixed with 400 kg 25 percent sulfuric acid. 1 36 kg of boron fluoride are introduced into the mixture. 136 kg of calcium sulphate separate out in an easily filterable form, while the supernatant mother liquor consists of 175 kg of 37% hydrofluoric acid bes, ehi.-2. In a mixture of 78 kg of calcium fluoride with 400 kg of 25 percent sulfuric acid, 164k titanium fluoride is added. Soon after the addition, calcium sulphate separates out, which in an amount of 136 kg quickly settles on the ground in fine form. The supernatant liquid consists of 365kg of titanium hydrofluoric acid (45 percent), which can be obtained by simply filtering it off.
Auch für die .Herstellung konzentrierter komplexer Fluorwasserstoffsäuren bietet das Verfahren eine leichte und sichere Möglichkeit.Also for the production of concentrated complex hydrofluoric acids the procedure offers an easy and safe option.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH95078D DE446492C (en) | 1923-10-28 | 1923-10-28 | Process for the production of complex hydrofluoric acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH95078D DE446492C (en) | 1923-10-28 | 1923-10-28 | Process for the production of complex hydrofluoric acid |
Publications (1)
Publication Number | Publication Date |
---|---|
DE446492C true DE446492C (en) | 1927-07-04 |
Family
ID=7167189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH95078D Expired DE446492C (en) | 1923-10-28 | 1923-10-28 | Process for the production of complex hydrofluoric acid |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE446492C (en) |
-
1923
- 1923-10-28 DE DEH95078D patent/DE446492C/en not_active Expired
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