AT150148B - Process for the regeneration of base-exchanging substances. - Google Patents

Process for the regeneration of base-exchanging substances.

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Publication number
AT150148B
AT150148B AT150148DA AT150148B AT 150148 B AT150148 B AT 150148B AT 150148D A AT150148D A AT 150148DA AT 150148 B AT150148 B AT 150148B
Authority
AT
Austria
Prior art keywords
base
regeneration
brine
salt
exchanging
Prior art date
Application number
Other languages
German (de)
Original Assignee
Simmon Maschf Hans
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 Simmon Maschf Hans filed Critical Simmon Maschf Hans
Application granted granted Critical
Publication of AT150148B publication Critical patent/AT150148B/en

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  • Treatment Of Water By Ion Exchange (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
Bei den bekannten Verfahren zum Regenerieren von natürlichen oder   künstlichen   Zeolithen   (Aluminmmdoppelsilikaten),   die infolge Abgabe ihrer Natronbase gegen Kalk und Magnesia erschöpft worden sind, durch Überleiten von Natronsalzlösungen wird eine Salzmenge verbraucht, die vierbis fünfmal so gross ist wie die theoretisch erforderliche Salzmenge. Zwecks Verminderung dieses Salzverbrauches ist bereits vorgeschlagen worden, zwei Salzsolen in der Weise zu verwenden, dass die schon einmal verwendete Salzsole zur Vorregenerierung durch das Basenaustauschmaterial geleitet wird und die Nachregenerierung mit einer frischen Sole erfolgt, die dann für die nächste Vorregenerierung gespeichert wird.

   Es ist ferner auch vorgeschlagen worden, eine Salzsole von etwa   60 Bé durch   das Basenaustauschmaterial zu leiten und nach Ablassen des den grössten Teil der Härtebildner enthaltenden ersten Anteiles der Sole diese im Kreislauf durch das zu regenerierende Material zu schicken. 



  Weiter ist es bereits bekannt, mit   verdünnten-etwa 4-6% igen-Salzlosungen   zu arbeiten. Alle diese Verfahren erfordern aber immerhin noch mehr als das Doppelte der theoretischen Salzmenge. 



   Die Erfindung erzielt eine weitere Herabsetzung des Salzverbrauehes dadurch, dass eine verdünnte Salzsole, deren Salzmenge nur wenig über dem für das Regenerieren erforderlichen theoretischen Wert liegt, bis zur praktischen Erschöpfung ihrer   Basenaustauschfähigkeit   mit einer Umwälzpumpe od. dgl. durch den basenaustauschenden Stoff hindurchgeführt wird. Beim Verfahren gemäss der Erfindung wird der Natrongehalt der Regeneriersole in höherem Masse ausgenutzt als bei den bisher bekanntgewordenen Verfahren und wird weiter eine Ersparnis an Waschwasser erreicht. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 
 EMI1.1
 
In the known processes for regenerating natural or artificial zeolites (aluminum double silicates), which have been exhausted due to the release of their sodium base against lime and magnesia, by passing over sodium salt solutions, an amount of salt is consumed that is four to five times as large as the theoretically required amount of salt. In order to reduce this salt consumption, it has already been proposed to use two brine in such a way that the brine that has already been used for pre-regeneration is passed through the base exchange material and the post-regeneration takes place with a fresh brine, which is then stored for the next pre-regeneration.

   It has also been proposed to pass a brine of about 60 Bé through the base exchange material and, after draining off the first portion of the brine containing most of the hardeners, to circulate it through the material to be regenerated.



  Furthermore, it is already known to work with dilute - about 4-6% - salt solutions. However, all of these processes still require more than twice the theoretical amount of salt.



   The invention achieves a further reduction in salt consumption in that a dilute brine, the amount of salt of which is only slightly above the theoretical value required for regeneration, is passed through the base-exchanging substance with a circulation pump or the like until its base exchange capacity is practically exhausted. In the method according to the invention, the sodium content of the regeneration brine is used to a greater extent than in the previously known methods and a saving in washing water is also achieved.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren zum Regenerieren von basenaustausehenden Stoffen mit Natronsalzsole, dadurch gekennzeichnet, dass eine verdünnte Salzsole, deren Salzmenge nur wenig über dem für das Regenerieren erforderlichen theoretischen Wert liegt, bis zur praktischen Erschöpfung ihrer Basenaustauschfähigkeit mit einer Umwälzpumpe od. dgl. durch den basenaustausehenden Stoff hindurchgeführt wird. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for regenerating base-exchanging substances with sodium salt brine, characterized in that a dilute brine, the amount of salt of which is only slightly above the theoretical value required for regeneration, is passed through the base-exchanging substance with a circulation pump or the like until its base exchange capacity is practically exhausted . ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT150148D 1935-01-21 1935-01-21 Process for the regeneration of base-exchanging substances. AT150148B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT150148T 1935-01-21

Publications (1)

Publication Number Publication Date
AT150148B true AT150148B (en) 1937-07-10

Family

ID=3645990

Family Applications (1)

Application Number Title Priority Date Filing Date
AT150148D AT150148B (en) 1935-01-21 1935-01-21 Process for the regeneration of base-exchanging substances.

Country Status (1)

Country Link
AT (1) AT150148B (en)

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