DE537607C - Process for processing nitric earth - Google Patents

Process for processing nitric earth

Info

Publication number
DE537607C
DE537607C DEI30773D DEI0030773D DE537607C DE 537607 C DE537607 C DE 537607C DE I30773 D DEI30773 D DE I30773D DE I0030773 D DEI0030773 D DE I0030773D DE 537607 C DE537607 C DE 537607C
Authority
DE
Germany
Prior art keywords
earth
execution
nitric
water
heated
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
DEI30773D
Other languages
German (de)
Inventor
Dr-Ing Emil Hegelmann
Dr-Ing E H Dr Ernst Jaenecke
Dr Hermann Klippel
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI30773D priority Critical patent/DE537607C/en
Application granted granted Critical
Publication of DE537607C publication Critical patent/DE537607C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D9/00Nitrates of sodium, potassium or alkali metals in general
    • C01D9/02Preparation by working-up natural salt mixtures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Description

Verfahren zur Verarbeitung von Salpetererden In dem Hauptpatent 535 64$ ist ein Verfahren zur Verarbeitung von Salpetererden beschrieben, bei dem man Wasserdampf in das zu verarbeitende Material von oben in solcher Menge einführt, daß praktisch vollständige Kondensation eintritt, wobei man dafür Sorge trägt, daß die gebildete Lauge am unteren Ende des Auslaugegefäßes kontinuierlich abfließen kann.Process for processing nitric earth In main patent 535 64 $ describes a process for processing nitric earth in which one Introduces water vapor into the material to be processed from above in such an amount that practically complete condensation occurs, taking care that the lye that has formed flow off continuously at the lower end of the leaching vessel can.

Es wurde nun gefunden, daß man dieses Verfahren vorteilhaft derart ausführen kann, daß man die für die Durchführung des Verfahrens erforderliche Menge Dampf durch Aufspritzen von Wasser auf die dauernd über ioo °, zweckmäßig über i2o °, erhitzten Salpetererden erzeugt. Als aufzuspritzendes Wasser wählt man zweckmäßig Mutterlaugen von einem vorhergehenden Arbeitsgang. Von besonderem Vorteil hierbei ist, daß die das Natriumnitrat begleitenden Salze in solchen Laugen in viel geringerer Menge enthalten sind als z. B. in Mutterlaugen von anderen Arbeitsweisen, nach denen z. B. Caliche längere Zeit mit Wasser oder dünner Lauge behandelt wurde.It has now been found that this method is advantageous can perform that the amount required to carry out the process Steam by spraying water on the continuously over 100 °, expediently over i2o °, heated nitric earth produced. The water to be sprayed on is expediently chosen Mother liquors from a previous operation. Of particular advantage here is that the salts accompanying the sodium nitrate in such alkalis are much lower Amount included as z. B. in mother liquors from other working methods, according to which z. B. Caliche has been treated with water or a thin lye for a long time.

Das Verfahren hat den Vorteil, daß sich die Lauge durch Wasserverlust konzentriert. Da der Rückstand Feuchtigkeit zurückbehält, ist zu erstreben, daß diese nicht zuviel Natriumnitrat enthält. Aus diesem Grunde empfiehlt es sich, nach dem Aufspritzen von Mutterlauge noch warmes Wasser aufzuspritzen, das die konzentrierte Lauge im Apparat vor sich herschiebt. Das Verfahren wird zweckmäßig so geleitet, daß der entwickelte Dampf bei geringem Überdruck (von einigen Zentimetern Quecksilber) die Lauge nur so lange aus dem Apparat drückt, als sie konzentriert ist, und daß die erhaltene heiße Laugenmenge so groß ist, daß sie gerade alles neu aufgenommene Natriumnitrat beim Abkühlen zur Ausscheidung bringt und sich hierbei nicht wesentlich gegenüber der anfangs angewandten Laugenmenge in ihrer Menge verändert.The method has the advantage that the lye is lost through water loss concentrated. Since the residue retains moisture, it is desirable that it does not contain too much sodium nitrate. For this reason, it is advisable to post splashing on the mother liquor still warm water, which concentrated the Pushes lye in front of you. The procedure is expediently conducted in such a way that that the vapor evolved at a slight overpressure (of a few centimeters of mercury) presses the lye out of the apparatus only as long as it is concentrated, and that the amount of hot lye obtained is so great that it is all newly absorbed Sodium nitrate is excreted when it cools and is not significantly affected compared to the amount of lye used initially.

Die Erhitzung der Apparatur erfolgt zweckmäßig dadurch, daß z. B. auf i2o ° erwärmtes Öl durch einen Heizmantel geleitet wird. Diese Art der Heizung hat noch den Vorteil besserer Wärmeausnutzung als z. B. die Verwendung von gespanntem Dampf oder von Elektrizität, da das Öl, das durch den Heizmantel gepumpt wird, einem direkt erhitzten Kessel entnommen werden kann.The apparatus is advantageously heated in that, for. B. Oil heated to i2o ° is passed through a heating jacket. This type of heating still has the advantage of better heat utilization than z. B. the use of cocked Steam or electricity, as the oil pumped through the heating mantle is one directly heated boiler can be taken.

Claims (3)

PATENTANSPRÜCHE: _. Ausführung des Verfahrens des Hauptpatents 535 648, dadurch gekennzeichnet, daß man die für die Durchführung des Verfahrens erforderliche Menge Dampf durch Aufspritzen von Wasser auf die dauernd über ioo °, zweckmäßig etwa i2o °, erhitzten Salpetererden erzeugt. . PATENT CLAIMS: _. Execution of the main patent 535 process 648, characterized in that the necessary for the implementation of the method Amount of steam by spraying water on the continuously over 100 °, expedient about 12o °, heated nitric earth produced. . 2. Ausführung des Verfahrens nach Ansprach i, dadurch gekennzeichnet, daß man Mutterlaugen eines vorhergehenden Arbeitsganges verwendet und zweckmäßig anschließend noch Wasser aufspritzt. 2. Execution of the procedure according to Addressed i, characterized in that mother liquors from a previous operation used and then expediently sprayed on water. 3. Ausführung des Verfahrens nach Anspruch i und 2, dadurch gekennzeichnet, daß die Erhitzung der Apparatur mittels Heizmantels erfolgt, durch den zweckmäßig auf etwa a2o ° erhitztes Öl geleitet wird.3. Execution of the Method according to claim i and 2, characterized in that the heating of the Apparatus takes place by means of a heating jacket, through which it is expediently heated to about a2o ° Oil is directed.
DEI30773D 1927-03-30 1927-03-30 Process for processing nitric earth Expired DE537607C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI30773D DE537607C (en) 1927-03-30 1927-03-30 Process for processing nitric earth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI30773D DE537607C (en) 1927-03-30 1927-03-30 Process for processing nitric earth

Publications (1)

Publication Number Publication Date
DE537607C true DE537607C (en) 1931-11-05

Family

ID=7187705

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI30773D Expired DE537607C (en) 1927-03-30 1927-03-30 Process for processing nitric earth

Country Status (1)

Country Link
DE (1) DE537607C (en)

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