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DE478190C - Process for the mechanical dispersion of alkaline earth and heavy metal salts of phosphoric and arsenic acids - Google Patents

Process for the mechanical dispersion of alkaline earth and heavy metal salts of phosphoric and arsenic acids

Info

Publication number
DE478190C
DE478190C DEC41314D DEC0041314D DE478190C DE 478190 C DE478190 C DE 478190C DE C41314 D DEC41314 D DE C41314D DE C0041314 D DEC0041314 D DE C0041314D DE 478190 C DE478190 C DE 478190C
Authority
DE
Germany
Prior art keywords
acids
phosphoric
alkaline earth
heavy metal
metal salts
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
DEC41314D
Other languages
German (de)
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE478190C publication Critical patent/DE478190C/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
    • C01B25/00Phosphorus; Compounds thereof
    • C01B25/16Oxyacids of phosphorus; Salts thereof
    • C01B25/26Phosphates
    • C01B25/32Phosphates of magnesium, calcium, strontium, or barium
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00Phosphorus; Compounds thereof
    • C01B25/16Oxyacids of phosphorus; Salts thereof
    • C01B25/26Phosphates
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00Phosphorus; Compounds thereof
    • C01B25/16Oxyacids of phosphorus; Salts thereof
    • C01B25/26Phosphates
    • C01B25/32Phosphates of magnesium, calcium, strontium, or barium
    • C01B25/327After-treatment
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G28/00Compounds of arsenic
    • C01G28/007Halides

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Colloid Chemistry (AREA)

Description

Verfahren zur mechanischen Dispergierung von Erdalkali-und Schwermetallsalzen der Phosphor- und Arsensäuren Die in Wasser unlöslichen Erdalkali- und Schwermetallsalze der Phosphor- und Arsensäuren, wie z. B. Bleiarseniate, Kupferarseniate, Calciumarseniate, Calciumphosphate (Rohphosphat) lassen sich nur mit großen Schwierigkeiten kolloidisieren.Process for the mechanical dispersion of alkaline earth and heavy metal salts of phosphoric and arsenic acids The alkaline earth and heavy metal salts which are insoluble in water the phosphoric and arsenic acids, such as. B. lead arsenates, copper arsenates, calcium arsenates, Calcium phosphates (rock phosphate) can only be colloidized with great difficulty.

Es wurde gefunden, daß man diese Salze durch mechanische Dispergierung leicht in den kolloidalen Zustand überführen kann, wenn man als Peptisatoren Alkalisalze von Arsensäuren oder Phosphorsäuren verwendet, die aus den Orthosäuren durch Wasserabspaltung entstehen oder so entstanden gedacht werden können, also im Verhältnis zu diesen Orthosäuren wasserärmer sind. Zu diesen Alkalisalzen wasserärmerer Arsen- und Phosphorsäuren gehören z. B. die Alkalimetaphosphate, und zwar insbesondere die Alkalisalze der polymeren (komplexen) Verbindungen, wie Tri-, Tetra-; Hexametaphosphate, z. B. Kaliumnatriummetahexaphosphat, weiter die Alkalipyrophosphate, wie Natriumpyrophosphat, die Alkalimetaarsenate und -pyroarseniate, wie z. B. Natriumpyroarseniat. Ferner gehören hierzu auch die Allkalisalze der entsprechenden Thiosäuren (Sulfosäuren), also die Salze jener Meta- und Pyrosäuren, in denen der Sauerstoff ganz oder teilweise durch Schwefel ersetzt ist. So hat sich z. B. Natriumpyrosulfoarseniat als Peptisator ausgezeichnet bewährt.It has been found that these salts can be obtained by mechanical dispersion can easily be converted into the colloidal state if alkali salts are used as peptizers of arsenic acids or phosphoric acids used, those from the ortho acids by dehydration can arise or can be thought of as arisen, i.e. in relation to them Ortho acids are less watery. To these alkali salts of arsenic and phosphoric acids with less water belong e.g. B. the alkali metaphosphates, in particular the alkali salts of the polymeric (complex) compounds such as tri-, tetra-; Hexametaphosphates, e.g. B. Potassium Sodium Metahexaphosphate, furthermore the alkali pyrophosphates, such as sodium pyrophosphate, the alkali metal arsenates and -pyroarseniate, such as. B. Sodium Pyroarseniate. This also includes the Alkaline salts of the corresponding thioacids (sulfonic acids), i.e. the salts of those meta- and pyroacids, in which all or some of the oxygen is replaced by sulfur is. So has z. B. sodium pyrosulfoarsenate has proven excellent as a peptizer.

Zur Durchführung der Dispergierung können alle gebräuchlichen mechanischen Hilfsmittel, wie Schlagmühlen, Kolloidmühlen u. dgl., Verwendung finden. Es genügt aber auch, das zu kolloidisierende Material mit dem Peptisator mit Hilfe eines einfachen Rührwerks innig durchzumischen. Vorteilhaft ist es; die mechanische Behandlung in Gegenwart von Schutzkolloiden vorzunehmen. Die mechanische Dispergierung kann sowohl in Gegenwart von Wasser oder eines anderen Dispersionsmittels als- auch im feuchten oder trockenen Zustand durchgeführt werden. Bei Anwendung der angegebenen Peptisatoren gelingt es, selbst bisher nicht kolloidisierbare Salze, wie z. B. -Calciumarseniat ohne Schwierigkeiten in ein kolloidal lösliches Produkt überzuführen. Ausführ ungsheispiele i. iooo g Calciumarsenat werden mit äoo g Wasser und 5o g Kaliumnatriummetahexaphosphat nach und nach innig verrieben. Diese Verreibung kann in irgendeiner geeigneten Mahlvorrichtung durchgeführt werden. Selbstverständlich kann die Dispergierung auch in Gegenwart von Schutzkolloiden vorgenommen werden, doch sind diese nicht unbedingt erforderlich. Das auf diese Weise erhaltene Produkt ist eine trübe kolloide peptisierte Lösung von Kalkarseniat.To carry out the dispersion, all customary mechanical Aids, such as beater mills, colloid mills and the like, are used. It is sufficient but also, the material to be colloidized with the peptizer with the help of a simple Mix the agitator thoroughly. It is beneficial; the mechanical treatment in Make the presence of protective colloids. The mechanical dispersion can do both in the presence of water or another dispersing agent as well as in the wet or dry state. When using the specified peptizers it is possible even to date not colloidizable salts, such as. B. calcium arsenate to be converted into a colloidally soluble product without difficulty. Implementation examples i. 100 g calcium arsenate are mixed with 100 g water and 50 g potassium sodium metahexaphosphate gradually rubbed in thoroughly. This trituration can be carried out in any suitable milling device be performed. The dispersion can of course also take place in the presence made of protective colloids but they are not necessarily necessary. The product obtained in this way is a cloudy colloid peptized Solution of calcium arsenate.

z. iooo g Calciumarsenat werden mit 8oo g_ Wasser und ioo g Natriumpyrosulfoarsenat in kleinen Anteilen innig verrieben. Auch hier tritt eine vorzügliche Peptisation ein.z. 100 g calcium arsenate are mixed with 8oo g water and 100 g sodium pyrosulfoarsenate intimately rubbed in small portions. Excellent peptization also occurs here a.

3. iooo g Calciumphosphat werden mit 8oo g Wasser und ioo g Natriumpyrophosphat durch inniges Verreiben dispergiert.3. 100 g calcium phosphate are mixed with 8oo g water and 100 g sodium pyrophosphate dispersed by thorough trituration.

q.. iooo g Bleiarseniat werden mit Soo g Wasser und 5o g Natriumpyrosulfoarseniat verrieben. Nach kurzer Zeit entsteht eine kolloide Suspension.q .. 100 g of lead arsenate are mixed with so g of water and 50 g of sodium pyrosulfo arsenate rubbed in. A colloidal suspension is formed after a short time.

Claims (1)

PATENTANSPRUCH: Verfahren zur mechanischen Dispergierung von Erdalkali- und Schwermetallsalzen der Phosphorsäuren und Arsensäuren, gegebenenfalls in Gegenwart von Schutzkolloiden, dadurch gekennzeichnet, daß als Peptisatoren Alkalisalze der Arsensäuren oder Phosphorsäuren verwendet werden, die aus den Orthosäuren durch Wasserabspaltung entstehen oder so entstanden gedacht werden können, d. h. im Verhältnis zu diesen Orthosäuren wasserärmer sind.PATENT CLAIM: Process for the mechanical dispersion of alkaline earth and heavy metal salts of phosphoric acids and arsenic acids, optionally in the presence of protective colloids, characterized in that alkali salts are used as peptizers Arsenic acids or phosphoric acids are used, derived from the ortho acids Dehydration arise or can be thought of as arisen, d. H. in relation to to these ortho acids are less watery.
DEC41314D 1927-09-24 1928-04-08 Process for the mechanical dispersion of alkaline earth and heavy metal salts of phosphoric and arsenic acids Expired DE478190C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT478190X 1927-09-24

Publications (1)

Publication Number Publication Date
DE478190C true DE478190C (en) 1929-06-20

Family

ID=3674886

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC41314D Expired DE478190C (en) 1927-09-24 1928-04-08 Process for the mechanical dispersion of alkaline earth and heavy metal salts of phosphoric and arsenic acids

Country Status (1)

Country Link
DE (1) DE478190C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE872100C (en) * 1942-03-21 1953-03-30 Henkel & Cie Gmbh Drilling emulsions
DE975675C (en) * 1953-07-11 1962-04-26 Benckiser Gmbh Joh A Process for removing condensation resins from textile goods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE872100C (en) * 1942-03-21 1953-03-30 Henkel & Cie Gmbh Drilling emulsions
DE975675C (en) * 1953-07-11 1962-04-26 Benckiser Gmbh Joh A Process for removing condensation resins from textile goods

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