DE908854C - Anion exchange - Google Patents

Anion exchange

Info

Publication number
DE908854C
DE908854C DEK4387D DEK0004387D DE908854C DE 908854 C DE908854 C DE 908854C DE K4387 D DEK4387 D DE K4387D DE K0004387 D DEK0004387 D DE K0004387D DE 908854 C DE908854 C DE 908854C
Authority
DE
Germany
Prior art keywords
water
crosslinking
aldehydes
carbohydrates
basic groups
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
DEK4387D
Other languages
German (de)
Inventor
Dr Julius Voss
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Priority to DEK4387D priority Critical patent/DE908854C/en
Application granted granted Critical
Publication of DE908854C publication Critical patent/DE908854C/en
Expired legal-status Critical Current

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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
    • B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
    • B01J41/08—Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
    • B01J41/12—Macromolecular compounds
    • B01J41/13—Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Description

Anionenaustausch Zusatz zum Patent 752680 Das Patent 752 680 betrifft die Verwendung von wasserunlöslichen, basische Gruppen enthaltenden Vernetzungsprodukten von Kohlehydraten als Anionenaustauscher.Anion exchange addendum to patent 752680 The 752,680 patent relates the use of water-insoluble crosslinking products containing basic groups of carbohydrates as anion exchangers.

In Weiterbildung des Gegenstands des Hauptpatents ist gefunden worden, daß solche Anionenaustauscher der im Hauptpatent beschriebenen Art besonders gut brauchbar sind, die unter Verwendung von Aldehyden als Vernetzungsmittel hergestellt worden sind. Als Aldehyd kommt in erster Linie Formaldehyd in Frage. Es können aber auch andere Aldehyde, z.,B. Acetaldehyd oder Glyoxal, als Vernetzungsmittel verwendet sein. In a further development of the subject matter of the main patent, it has been found that such anion exchangers of the type described in the main patent are particularly good those made using aldehydes as crosslinking agents are useful have been. Formaldehyde is primarily a suitable aldehyde. But it can also other aldehydes, e.g. Acetaldehyde, or glyoxal, used as a crosslinking agent be.

Die Herstellung der erfindungsgemäß zu verwendenden Stoffe kann z.B-. in bekannter Weise durch Erhitzen von basische Gruppen tragenden Kohlehydratäthern, z. B. Diäthylaminoäthylcellulose oder ähnlichen wasserlöslichen bzw. wasserquellbaren Kohlehydratabkömmlingen mit den Aldehyden oder aldehydabspaltenden Substanzen, z. B. Aldehydbisulfitverbindungen, Chlordimethyläther u. dgl., erfolgen. Zweckmäßig arbeitet man dabei in Gegenwart von Reaktionsbeschleunigern. The preparation of the substances to be used according to the invention can e.g. in a known way by heating carbohydrate ethers containing basic groups, z. B. Diethylaminoäthylcellulose or similar water-soluble or water-swellable Carbohydrate derivatives with the aldehydes or aldehyde-releasing substances, e.g. B. aldehyde bisulfite compounds, chlorodimethyl ether and the like., Take place. Appropriate one works in the presence of reaction accelerators.

Als solche können Säuren, wie Oxalsäure, Weinsäure und andere Dicarbonsäuren, Ligninsulfosäure, oder auch sauer reagierende Salze, z.B. Aluminiumnitrat, dienen.As such, acids such as oxalic acid, tartaric acid and other dicarboxylic acids, Lignin sulfonic acid or acidic salts, e.g. aluminum nitrate, are used.

Die Anionenaustauscher nach der Erfindung zeichnen sich vor den gemäß dem Patent 752 680 verwendeten dadurch aus, daß sie nur eine geringe Wasseraufnahmefähigkeit haben und daher hohe Abreibefestigkeit aufweisen. Sie lassen sich leicht in eine geeignete Form, z. B. grobe Körner, überführen. Infolgedessen bieten Schichten aus den Körpern den zu behandelnden Flüssigkeiten, wenn sie von diesen durchströmt werden, sehr geringen Widerstand und lassen damit eine hohe Filtriergeschwindigkeit zu. Trotz grober Form der Körper zeigt sich bei ihrer Verwendung als Austauscher eine hohe Reaktionsgeschwindigkeit. The anion exchangers according to the invention are distinguished from those according to the patent 752,680 used by the fact that they only have a small Water absorption capacity and therefore have high abrasion resistance. They can be easily converted into a suitable shape, e.g. B. coarse grains, transfer. As a result, layers offer off the bodies of the fluids to be treated when they are flowed through by them, very low resistance and thus allow a high filtering speed. Despite the coarse shape of the body, when it is used as an exchanger, a high response speed.

Claims (1)

Es können auch solche Vernetzungsprodukte Verwendung finden, die durch gleichzeitiges oder nacheinander erfolgendes Einwirken mehrerer verschiedenartiger Aldehyde bzw. eines Aldehyds und eines in dem Hauptpatent erwähnten Vernetzungsmittels auf basische Gruppen enthaltende Kohlehydrate erhalten worden sind. Such crosslinking products can also be used which through simultaneous or successive action of several different types Aldehydes or an aldehyde and a crosslinking agent mentioned in the main patent carbohydrates containing basic groups have been obtained. B e i s p i e l Als Anionenaustauscher wurde ein Vernetzungsprodukt verwendet, das in folgender Weise hergestellt wurde: 100 g einer 4,5% Stickstoff gehunden enthaltenden Diäthylaminoäthylcellulose, die nach dem in dem Patent 7I9 241 beschriel>enen Verfahren hergestellt worden ist, werden mit 100 g Wasser, 100 g 30%iger Formaldehydlösung und 10 g Weinsäure zu einer dicken Masse verknetet, die auf Blechen dünn ausgestrichen und 71/2 Stunden auf 1400 erhitzt wird. Das erhaltene Produkt ist wasserunlöslich. Es wird auf eine Korngröße von 0,2 bis I mm Durchmesser vermahlen, mit verdünnter Natronlauge und anschlieilend mit Wasser ausgewaschen und getrodnet. Example A crosslinking product was used as an anion exchanger used, which was prepared in the following manner: 100 g of a 4.5% nitrogen dog-containing diethylaminoethyl cellulose, which according to the patent 7I9 241 has been produced with 100 g of water, 100 g of 30% formaldehyde solution and 10 g of tartaric acid kneaded into a thick mass, which is spread thinly on metal sheets and heated to 1400 for 71/2 hours. The received The product is insoluble in water. It is down to a grain size of 0.2 to 1 mm in diameter ground, washed out with dilute sodium hydroxide solution and then with water and dodged. 100 g des so erhaltenen Anionenaustauschers machen aus einer Io°/oigen Salmiaklösung l80Milliäquivalent Ammoniak frei. 100 g of the anion exchanger obtained in this way make a Io% oigen Ammonia solution 180 billion equivalent ammonia free. P A T E N T A N S P R U C H : Verwendung von basische Gruppen enthaltenden wasserunlöslichen Vernetzungsprodukten von Kohlehydraten als Anionenaustauscher gemäß Patent 752 680, dadurch gekennzeichnet, daß die anzuwenden Stoffe mittels Aldehyden. insbesondere Formaldehyd, vernetzt worden sind. P A T E N T A N S P R U C H: Use of containing basic groups water-insoluble crosslinking products of carbohydrates as anion exchangers according to patent 752 680, characterized in that the substances to be used by means of Aldehydes. especially formaldehyde, have been crosslinked.
DEK4387D 1942-03-15 1942-03-15 Anion exchange Expired DE908854C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK4387D DE908854C (en) 1942-03-15 1942-03-15 Anion exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK4387D DE908854C (en) 1942-03-15 1942-03-15 Anion exchange

Publications (1)

Publication Number Publication Date
DE908854C true DE908854C (en) 1954-04-12

Family

ID=7210326

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK4387D Expired DE908854C (en) 1942-03-15 1942-03-15 Anion exchange

Country Status (1)

Country Link
DE (1) DE908854C (en)

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