DE41717C - Process for the preparation of fluoromagnesium - Google Patents

Process for the preparation of fluoromagnesium

Info

Publication number
DE41717C
DE41717C DENDAT41717D DE41717DA DE41717C DE 41717 C DE41717 C DE 41717C DE NDAT41717 D DENDAT41717 D DE NDAT41717D DE 41717D A DE41717D A DE 41717DA DE 41717 C DE41717 C DE 41717C
Authority
DE
Germany
Prior art keywords
fluoromagnesium
preparation
chloride
fluoride
magnesium
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 - Lifetime
Application number
DENDAT41717D
Other languages
German (de)
Original Assignee
A. FELDMANN in Linden vor Hannover
Publication of DE41717C publication Critical patent/DE41717C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F5/00—Compounds of magnesium
    • C01F5/26—Magnesium halides
    • C01F5/28—Fluorides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/20—Halides
    • C01F11/22—Fluorides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMTPATENT OFFICE

Bei den bisherigen Methoden der Darstellung des Fluormagnesiums durch Behandlung von Magnesia mit Fluorwasserstoffsäure oder Zersetzung von Magnesiasalzen mit Fluoralkalien steht die Kostspieligkeit des Verfahrens der technischen Anwendung des genannten Fluorids entgegen.In the previous methods of the preparation of the fluoromagnesium by treatment of Magnesia with hydrofluoric acid or decomposition of magnesia salts with fluoro-alkalis stands the cost of the process of technical application of said fluoride opposite.

Vorliegende Erfindung bezweckt nun, Fluormagnesium durch ein neues und billigeres Verfahren aus Chlormagnesium und Fluorcalcium zu erzeugen, Substanzen, von denen ersteres ein geringwerthiges Nebenproduct verschiedener Fabrikationszweige bildet, während letzteres vielfach als Mineral vorkommt.The present invention now aims to provide fluoromagnesium by a new and cheaper process to produce from magnesium chloride and calcium fluoride, substances of which the former forms an inferior by-product of various branches of manufacture, while the latter often occurs as a mineral.

Das Verfahren stützt sich auf die Thatsache, dafs Chlormagnesium sich mit Fluorcalcium in der Hitze zu Fluormagnesium und Chlorcalcium umsetzt.The method is based on the fact that magnesium chlorine reacts with calcium fluoride the heat converts to fluoromagnesium and calcium chloride.

Zur Ausführung des Verfahrens wird fein pulverisirtes Fluorcalcium mit überschüssiger concentrirter Lösung des Magnesiumchlorids erhitzt, jedoch nur bis zu einer solchen Temperatur, dafs eine erhebliche Zersetzung des Chlorids in Salzsäure und Base nicht eintritt. Auf dieser Temperatur wird die Mischung erhalten, bis die Umsetzung der Bestandteile derselben in Fluormagnesium und Chlorcalcium stattgefunden hat. Gegen Ende des Processes kann man die Temperatur bis zur theilweisen Zersetzung des überschüssigen Chlormagnesiums steigern. Hierauf läfst man die Masse erkalten, wobei sie erstarrt, weicht sie dann in Wasser auf, event, unter Zusatz von Salzsäure, um die ausgeschiedene Magnesia aufzulösen, und trennt dann durch Auslaugen das unlösliche Fluormagnesium von der löslichen Chlorverbindung. Sollte Fluorcalcium in unzersetztem Zustande zurückgeblieben sein, so läfst sich dieses von dem voluminöseren Fluormagnesium durch Schlämmen absondern.To carry out the process, finely powdered calcium fluoride is mixed with excess concentrated solution of magnesium chloride, but only to such a temperature, that there is no considerable decomposition of the chloride in hydrochloric acid and base. The mixture is kept at this temperature until the components have reacted same took place in fluoromagnesium and calcium chloride. Towards the end of the Processes one can adjust the temperature up to the partial decomposition of the excess magnesium chloride increase. The mass is then allowed to cool, whereby it solidifies and gives way then in water on, event, with the addition of hydrochloric acid to the excreted magnesia dissolve, and then separates the insoluble fluoromagnesium from the soluble by leaching Chlorine compound. Should calcium fluoride remain undecomposed, this can be separated from the more voluminous fluoromagnesium by sludge.

Claims (1)

Patent-Anspruch:Patent claim: Die Darstellung von Fluormagnesium aus Chlormagnesium und Fluorcalcium durch Mischen des Fluorids mit einer überschüssigen concentrirten Lösung des Chlorids, Erhitzen der Mischung bis zur beginnenden Zersetzung des letzteren und Auslaugen des gebildeten Fluormagnesiums.The representation of fluorine magnesium from chlorine magnesium and calcium fluoride by Mixing the fluoride with an excess concentrated solution of the chloride, heating the mixture until the beginning of the decomposition of the latter and leaching of the formed Fluoromagnesium.
DENDAT41717D Process for the preparation of fluoromagnesium Expired - Lifetime DE41717C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE44491T

Publications (1)

Publication Number Publication Date
DE41717C true DE41717C (en)

Family

ID=5624681

Family Applications (2)

Application Number Title Priority Date Filing Date
DENDAT41717D Expired - Lifetime DE41717C (en) Process for the preparation of fluoromagnesium
DENDAT44491D Expired - Lifetime DE44491C (en) Innovation in the process for the preparation of fluoromagnesium, which is protected by patent no

Family Applications After (1)

Application Number Title Priority Date Filing Date
DENDAT44491D Expired - Lifetime DE44491C (en) Innovation in the process for the preparation of fluoromagnesium, which is protected by patent no

Country Status (1)

Country Link
DE (2) DE44491C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877095A (en) * 1957-01-07 1959-03-10 Dow Chemical Co Preparation of magnesium fluoride
US2985508A (en) * 1957-01-07 1961-05-23 Dow Chemical Co Manufacture of metal fluorides

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877095A (en) * 1957-01-07 1959-03-10 Dow Chemical Co Preparation of magnesium fluoride
US2985508A (en) * 1957-01-07 1961-05-23 Dow Chemical Co Manufacture of metal fluorides

Also Published As

Publication number Publication date
DE44491C (en)

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