DE446492C - Process for the production of complex hydrofluoric acid - Google Patents

Process for the production of complex hydrofluoric acid

Info

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
Application number
DEH95078D
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German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALBERT F MEYERHOFER
Original Assignee
ALBERT F MEYERHOFER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ALBERT F MEYERHOFER filed Critical ALBERT F MEYERHOFER
Priority to DEH95078D priority Critical patent/DE446492C/en
Application granted granted Critical
Publication of DE446492C publication Critical patent/DE446492C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00Silicon; Compounds thereof
    • C01B33/08Compounds containing halogen
    • C01B33/10Compounds containing silicon, fluorine, and other elements
    • C01B33/103Fluosilicic 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)

PATENTANSPRUCH: Abänderung des durch Patent 4q:5 196 geschützten Verfahrens zur Herstellung von Kieselflußsäure, dadurch gekennzeichnet, daß man zwecks Gewinnung komplexer Fluorwasserstoffsäuren die Fluoride von Metallen oder Metalloiden, Flußspat und Schwefelsäure aufeinander einwirken läßt.PATENT CLAIM: Modification of the process protected by patent 4q: 5 196 for the production of silicofluoric acid, characterized in that for the purpose of obtaining complex hydrofluoric acids the fluorides of metals or metalloids, fluorspar and sulfuric acid interacts.
DEH95078D 1923-10-28 1923-10-28 Process for the production of complex hydrofluoric acid Expired DE446492C (en)

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)

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