DE394051C - Process for the partial or complete separation of soluble strontium and calcium compounds - Google Patents

Process for the partial or complete separation of soluble strontium and calcium compounds

Info

Publication number
DE394051C
DE394051C DER57418D DER0057418D DE394051C DE 394051 C DE394051 C DE 394051C DE R57418 D DER57418 D DE R57418D DE R0057418 D DER0057418 D DE R0057418D DE 394051 C DE394051 C DE 394051C
Authority
DE
Germany
Prior art keywords
strontium
partial
complete separation
calcium compounds
calcium
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
DER57418D
Other languages
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.)
J MARWEDEL DR
WILHELM SCHOLZ DIPL ING
Rhenania Verein Chemischer Fabriken AG
Original Assignee
J MARWEDEL DR
WILHELM SCHOLZ DIPL ING
Rhenania Verein Chemischer Fabriken AG
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 J MARWEDEL DR, WILHELM SCHOLZ DIPL ING, Rhenania Verein Chemischer Fabriken AG filed Critical J MARWEDEL DR
Priority to DER57418D priority Critical patent/DE394051C/en
Priority to DER58790D priority patent/DE402056C/en
Application granted granted Critical
Publication of DE394051C publication Critical patent/DE394051C/en
Expired legal-status Critical Current

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
    • C01B33/20—Silicates
    • C01B33/22—Magnesium silicates
    • 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
    • C01B33/20—Silicates
    • C01B33/24—Alkaline-earth metal silicates
    • 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
    • C01F11/36—Nitrates
    • C01F11/38—Preparation with nitric acid or nitrogen oxides

Description

Verfahren zur teilweisen oder vollständigen Trennung von löslichen Strontium-und Kalziumverbindungen. Bei der Verarbeitung von natürlichen strontiumhaltigen Stoffen, wie Cölestin, Strontianit usw., erhält man Strontiumsalze, welche je nach der Zusammensetzung des natürlichen Ausgangsstoffes mehr oder weniger mit Kalziumverbindungen verunreinigt sind.Process for partial or complete separation of soluble Strontium and calcium compounds. When processing natural strontium-containing Substances such as cölestin, strontianite, etc., are obtained strontium salts, which depending on the composition of the natural raw material more or less with calcium compounds are contaminated.

Nach der Erfindung werden kalkhaltige Strontiumverbindungen dadurch gereinigt, daß man sie in Gegenwart von Wasser mit unlöslichem Strontiumsilikat behandelt. Läßt man z. B. unlösliches Strontiumsilikat auf eine Strontium-und Kalziumsalz enthaltende Lösung in der Wärme einwirken, so vollzieht sich ein Umtausch derart, daß das Kalzium unter Bildung von Kalziumsilikat unlöslich wird, während das Strontium sich von der Kieselsäure trennt und in Lösung geht. Auf diese Weise kann man Lösungen, welche neben Strontiumsalzen noch Kalziumsalze enthalten, teilweise oder auch ganz von letzterem befreien und sie gleichzeitig an Strontiumsalz anreichern. Durch Arbeiten unter Druck wird die Umsetzung erheblich begünstigt.According to the invention, calcareous strontium compounds are thereby purified by mixing them in the presence of water with insoluble strontium silicate treated. If you let z. B. insoluble strontium silicate on a strontium and calcium salt containing solution act in the heat, an exchange takes place in such a way that that the calcium becomes insoluble with the formation of calcium silicate, while the strontium separates from the silica and goes into solution. In this way one can find solutions which in addition to strontium salts also contain calcium salts, partly or completely free from the latter and at the same time enrich it in strontium salt. Working through under pressure, implementation is greatly enhanced.

Zur praktischen Durchführung des Verfahrens bedient man sich mit Vorteil strontiumsilikathaltiger Stoffe, wie z. B. der schlammförmigen Rückstände, welche bei der Aufschließung von Cölestin mit Kohle nach Auslaugung des gebildeten Schwefelstrontiums verbleiben. Beispiel: ioo 1 einer wässerigen Lösung von 3o Teilen Strontiumchlorid und 13 Teilen Kalziumchlorid wurden mit aoo kg Strontiumschlamm unter Zugabe von ioo 1 Wasser il/, Stunde im Autoklaven bei 5 Atm. Druck und 155' C unter Umrühren erhitzt. Nach dem Abfiltrieren des Schlammes ließ sich in dem Filtrat Chlorkalzium nur noch in Spuren nachweisen.For the practical implementation of the method it is advantageous to use it substances containing strontium silicate, such as B. the muddy residues, which in the digestion of cölestin with coal after leaching of the sulfur strontium formed remain. Example: 100 l of an aqueous solution of 30 parts of strontium chloride and 13 parts of calcium chloride were mixed with aoo kg of strontium sludge with the addition of 100 liters of water per hour in an autoclave at 5 atm. Pressure and 155 ° C with stirring heated. After the sludge was filtered off, calcium chloride was allowed to settle in the filtrate can only be proven in traces.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zur teilweisen oder vollständigen Trennung von löslichen Strontium-und Kalziumverbindungen, darin bestehend, daß man auf wässerige Lösungen dieser Verbindungen Strontiumsilikat in der Wärme, vorteilhaft unter Druck, einwirken läßt. z. Verfahren nach Anspruch i, gekennzeichnet durch die Verwendung strontiumsilikathaltiger Stoffe, wie z. B. der schlammförmigen Rückstände, welche bei der Aufschließung von Cölestin mit Kohle nach Auslaugung des gebildeten Schwefelstrontiums verbleiben.PATENT CLAIMS: i. Process for partial or complete separation of soluble strontium and calcium compounds, consisting in being based on aqueous Solutions of these compounds strontium silicate in the heat, advantageously under pressure, can act. z. Method according to claim i, characterized by the use substances containing strontium silicate, such as B. the muddy residues, which in the digestion of cölestin with coal after leaching of the sulfur strontium formed remain.
DER57418D 1922-12-07 1922-12-07 Process for the partial or complete separation of soluble strontium and calcium compounds Expired DE394051C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DER57418D DE394051C (en) 1922-12-07 1922-12-07 Process for the partial or complete separation of soluble strontium and calcium compounds
DER58790D DE402056C (en) 1922-12-07 1923-06-21 Process for the production of nitric acid strontium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER57418D DE394051C (en) 1922-12-07 1922-12-07 Process for the partial or complete separation of soluble strontium and calcium compounds

Publications (1)

Publication Number Publication Date
DE394051C true DE394051C (en) 1924-04-10

Family

ID=7410522

Family Applications (1)

Application Number Title Priority Date Filing Date
DER57418D Expired DE394051C (en) 1922-12-07 1922-12-07 Process for the partial or complete separation of soluble strontium and calcium compounds

Country Status (1)

Country Link
DE (1) DE394051C (en)

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