DE761219C - Process for the preparation of calcium sulphate-rich water for cooling purposes - Google Patents

Process for the preparation of calcium sulphate-rich water for cooling purposes

Info

Publication number
DE761219C
DE761219C DEI70410D DEI0070410D DE761219C DE 761219 C DE761219 C DE 761219C DE I70410 D DEI70410 D DE I70410D DE I0070410 D DEI0070410 D DE I0070410D DE 761219 C DE761219 C DE 761219C
Authority
DE
Germany
Prior art keywords
water
cooling purposes
rich water
preparation
calcium sulphate
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
DEI70410D
Other languages
German (de)
Inventor
Hellmuth Reichelt
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 DEI70410D priority Critical patent/DE761219C/en
Application granted granted Critical
Publication of DE761219C publication Critical patent/DE761219C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/04—Processes using organic exchangers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Description

Verfahren zur Aufbereitung calciumsulfatreicher Wässer für Kühlzwecke Werden stark sulfathaltige Wässer, die außerdem viel Calcium enthalten, für Kühlzwecke verwendet, so treten die gefürchteten Gipssteine auf. Bisher wurden daher derartige Wässer vollständig enthärtet, was bei Benutzung von Ionenaustauschern jedoch einen entsprechenden Aufwand von Kochsalz als Regeneriermittel bedingt. Wird nämlich nur ein Teil enthärtet, so treten, wenn auch in vermindertem Maße, die gleichen Schäden wiederum auf, da das gebildete Natriumsulfat die Löslichkeit des Gipses erniedrigt.Process for treating water rich in calcium sulphate for cooling purposes Waters with a high concentration of sulphate, which also contain a lot of calcium, are used for cooling purposes used, the dreaded gypsum stones occur. So far such Water is completely softened, which is a problem when using ion exchangers corresponding expenditure of table salt as a regenerating agent. That is only If a part is softened, the same damage occurs, albeit to a lesser extent again, as the sodium sulfate formed lowers the solubility of the gypsum.

Führt man nun ein derartiges Rohwasser über Kationen- und Säureanionenaustauscher und benutzt erfindungsgemäß als gemeinsames Regeneriermittel eine Kochsalzlösung, so kann man auf einfache und wirtschaftliche Weise ein geeignetes Kühlwasser erzeugen, indem bei einer derartigen Arbeitsweise nur ein teil der insgesamt benötigten Wassermenge umgesalzt zu werden braucht da das gebildete Natriumchlorid die Löslichkeit des Gipses erhoht. If you now lead such raw water over cation and acid anion exchangers and according to the invention uses a saline solution as a common regenerating agent, in this way you can generate a suitable cooling water in a simple and economical way, by using only part of the total amount of water required in such a way of working salted because the sodium chloride formed increases the solubility of the gypsum.

Beispiel Zwei mit je 41 Austauschmaterial gefüllte Apparate werden so hintereinandergeschaltet, daß das Wasser erst durch den Kationenaustauscher (Harz aus Resorcin, Benzaldehyddisulfonsäure und Formaldehydj und dann durch den Säureanionenaustauscher (Harz aus m-Phenylendiamin, Polyäthylendiamin und Formaldehyd) fließt. Das Aggregat vermag 5001 vollkommen sulfatfreies Wasser mit einer Resthärte von weniger als 0,1° dH zu liefern, wenn es mit einem Wasser von IIO Gesamthärte und 150 mg SO3/l beaufschlagt wird. Die Regeneration wird mit einer Kochsalzmenge vorgenommen, die 300% der Theorie, bezogen auf den Kationenaustauscher, entspricht, so daß die Entfernung der Sulfationen aus dem Säureanionenaustauscher Keinerlei zusätzliche Regeneriermittelmengen erfordert. Die Leistung der Filter ändert sich nicht, wenn die Austauscher in nur einem Apparat untergebracht werden, und es ist auch gleichgültig, ob sie geschichtet oder innig vermengt eingefüllt sind. Das wie angegeben aufbereitete Wasser wird schließlich entsprechend den Betriebsbedingungen mit obwasser gemischt. Example Two apparatuses each filled with 41 exchange material are used connected in series in such a way that the water only passes through the cation exchanger (resin from resorcinol, benzaldehyde disulfonic acid and formaldehydej and then through the acid anion exchanger (Resin made from m-phenylenediamine, polyethylene diamine and formaldehyde) flows. The aggregate is capable of 5001 completely sulfate-free water with a residual hardness of less than 0.1 ° i.e. to be delivered if it is exposed to water with a total hardness of IIO and 150 mg SO3 / l will. The regeneration is carried out with an amount of common salt that is 300% of theory, based on the cation exchanger, corresponds, so that the removal of the sulfate ions No additional amounts of regenerant required from the acid anion exchanger. The performance of the filters does not change if the exchangers are in only one device be accommodated, and it does not matter whether they are stratified or intimate are mixed in. The water treated as specified will eventually mixed with water according to the operating conditions.

Claims (1)

P A T E N T A N S P R U C H : Verfahren zur Aufbereitung calciumsulfatreicher Wässer für Kühlzwecke durch Ionenaustausch, dadurch gekennzeichnet, daß man einen Teil des Rohwassers über mit Kochsalzlösung nacheinander regenerierte Kationen- und Anionenaustauscher führt und das erhaltene kalk- und sulfatfreie Wasser mit Rohwasser in solchem Verhältnis mischt, ,daß entsprechend den jeweiligen Betriebsbedingungen die Ausscheidung von Gipsstein unterbleibt. P A T E N T A N S P R U C H: Process for processing calcium sulfate-rich Water for cooling purposes by ion exchange, characterized in that one Part of the raw water via the cationic solution regenerated one after the other with saline and anion exchanger leads and the resulting lime-free and sulfate-free water with Raw water mixes in such a ratio that according to the respective operating conditions the excretion of gypsum stone does not occur. Zur Abgrenzung des Erfindungsgegenstands vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: Französische Patentschriften Nr. 796796, 796797. To differentiate the subject matter of the invention from the prior art are The following publications were considered in the granting procedure: French Patent Nos. 796796, 796797.
DEI70410D 1941-09-09 1941-09-09 Process for the preparation of calcium sulphate-rich water for cooling purposes Expired DE761219C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI70410D DE761219C (en) 1941-09-09 1941-09-09 Process for the preparation of calcium sulphate-rich water for cooling purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI70410D DE761219C (en) 1941-09-09 1941-09-09 Process for the preparation of calcium sulphate-rich water for cooling purposes

Publications (1)

Publication Number Publication Date
DE761219C true DE761219C (en) 1953-08-31

Family

ID=7197098

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI70410D Expired DE761219C (en) 1941-09-09 1941-09-09 Process for the preparation of calcium sulphate-rich water for cooling purposes

Country Status (1)

Country Link
DE (1) DE761219C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1106699B (en) * 1955-07-28 1961-05-10 Philipp Mueller Nachf Eugen Bu Process for reducing the carbonate hardness of water and for removing its magnesia hardness
DE1119184B (en) * 1955-07-28 1961-12-07 Philipp Mueller Nachf Eugen Bu Process for reducing the carbonate hardness of water and for removing its magnesia hardness
DE1257692B (en) * 1964-02-25 1967-12-28 Joh A Benckiss G M B H Chem Fa Regeneration of mixtures of strongly and weakly acidic ion exchangers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR796796A (en) * 1934-11-13 1936-04-15 Manufacturing process and applications of synthetic resins
FR796797A (en) * 1934-11-13 1936-04-15 Method and means for carrying out anion exchanges in solutions

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR796796A (en) * 1934-11-13 1936-04-15 Manufacturing process and applications of synthetic resins
FR796797A (en) * 1934-11-13 1936-04-15 Method and means for carrying out anion exchanges in solutions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1106699B (en) * 1955-07-28 1961-05-10 Philipp Mueller Nachf Eugen Bu Process for reducing the carbonate hardness of water and for removing its magnesia hardness
DE1119184B (en) * 1955-07-28 1961-12-07 Philipp Mueller Nachf Eugen Bu Process for reducing the carbonate hardness of water and for removing its magnesia hardness
DE1257692B (en) * 1964-02-25 1967-12-28 Joh A Benckiss G M B H Chem Fa Regeneration of mixtures of strongly and weakly acidic ion exchangers

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