DE907737C - Absorbent paper suitable for chromatographic purposes and process for its manufacture - Google Patents

Absorbent paper suitable for chromatographic purposes and process for its manufacture

Info

Publication number
DE907737C
DE907737C DEZ2391A DEZ0002391A DE907737C DE 907737 C DE907737 C DE 907737C DE Z2391 A DEZ2391 A DE Z2391A DE Z0002391 A DEZ0002391 A DE Z0002391A DE 907737 C DE907737 C DE 907737C
Authority
DE
Germany
Prior art keywords
oxycellulose
paper
absorbent paper
manufacture
paper suitable
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
DEZ2391A
Other languages
German (de)
Inventor
Dr Ernst Battenberg
Dr Walter Schoch
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.)
Zellsloff Fabrik Waldhof AG
Original Assignee
Zellsloff Fabrik Waldhof 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 Zellsloff Fabrik Waldhof AG filed Critical Zellsloff Fabrik Waldhof AG
Priority to DEZ2391A priority Critical patent/DE907737C/en
Application granted granted Critical
Publication of DE907737C publication Critical patent/DE907737C/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/25—Cellulose
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/281—Sorbents specially adapted for preparative, analytical or investigative chromatography
    • B01J20/282—Porous sorbents
    • B01J20/285—Porous sorbents based on polymers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/90—Plate chromatography, e.g. thin layer or paper chromatography
    • G01N30/92—Construction of the plate
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/90—Plate chromatography, e.g. thin layer or paper chromatography
    • G01N30/92—Construction of the plate
    • G01N30/93—Application of the sorbent layer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Paper (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Papier für chromatographische Trennungen.The invention relates to a method for producing paper for chromatographic Breakups.

Die chromatographische Trennung kleinster Substanzmengen mit Hilfe der Papierchromatographie ist ki letzter Zeit zu einer wertvollen Methode für die Bestimmung und Isolierung der verschiedensten Verbindungen geworden, vor allem solcher Substanzen, deren Trennung und ίο Bestimmung bisher nur auf kompliziertem Wege oder überhaupt nicht möglich war.The chromatographic separation of the smallest amounts of substances with the help of paper chromatography has recently become a valuable method for the determination and isolation of the ki become various compounds, especially such substances, their separation and ίο Determination was previously only possible in a complicated way or not at all.

Die bisher zur Papierchromatographie verwendeten Papiere sind besonders reine Filterpapiere mit besonderen Saugfähigkeks- und Festigkeitseigenschaften, die z. B. aus Baumwollfasern hergestellt werden.The papers used up to now for paper chromatography are particularly pure filter papers with special absorbency and firmness properties, the z. B. made of cotton fibers.

Das erfindungsgemäße Verfahren erstreckt sich auf die Herstellung von Papier für chromatographische Zwecke, bei dem in einer dem jeweiligen Verwendungszweck entsprechenden Menge 2& Oxycellulose, welche durch Einwirkung von Oxydationsmitteln auf Cellulosefasern erhalten ist, eingelagert oder aufgebracht wird. Diese Oxycellulose ist in die sonst üblichen Filterpapiere bzw. saugfähigen Papiere eingeschlossen, was man z. B. durch Oxydation des fertiggestellten Papiers erreichen kann, oder die Oxycellulose wird in geeigneter Weise in den Papierstoff oder in das fertige Papier eingebracht.The inventive method extends to the production of paper for chromatographic Purposes, in which 2 & Oxycellulose, which is obtained by the action of oxidizing agents on cellulose fibers, is stored or applied. This oxycellulose is in the otherwise usual filter papers or absorbent papers included, what is z. B. by oxidation of the finished paper can reach, or the oxycellulose is suitably in the paper stock or in the finished paper brought in.

Für die Herstellung eines chromatographischen, oxycellulosehaltigen Papiers gemäß der vorliegenden Erfindung ist vor allem eine gleich-For the production of a chromatographic, oxycellulose-containing paper according to the present Invention is above all an equal

mäßige und feine Verteilung der Oxycellulose im fertigen Papier wichtig. Außerdem darf der Gehalt an Oxycellulose nicht zu hoch sein, um die Festigkeitseigenschaften und Saugfähigkeit des Papiers nicht zu beeinträchtigen. Bei einem Gehalt an Carboxylgruppen bis zu etwa i6°/o weist das Papier noch die für die Papierchromatographie erforderliche Festigkeit und Saugfähigkeit auf.
Das Einbringen von Oxycellulose in das Papiermoderate and fine distribution of oxycellulose in the finished paper is important. In addition, the content of oxycellulose must not be too high in order not to impair the strength properties and absorbency of the paper. With a content of carboxyl groups of up to about 16%, the paper still has the strength and absorbency required for paper chromatography.
The introduction of oxycellulose into the paper

ίο kann erfindungsgemäß in verschiedener Weise erfolgen. ίο can be done in various ways according to the invention.

Beispielsweise kann ein Faservlies oder -blatt der partiellen Oxydation unterworfen werden, indem man es z. B. nach bekannten Verfahren mit NO2 behandelt. Man kann sowohl NO2-GaS als auch NO2 in einem organischen Lösungsmittel zur Oxydation verwenden. Der Prozentgehalt an Carboxylgruppen hängt von der Dauer der NO2-Beftandlung ab, so daß sich Papiere mit dem jeweils gewünschten Oxydationsgrad herstellen lassen. Auch andere für die Herstellung von Oxycellulose bekannte Oxydationsmittel, wie z. B. Per jodsäure, können zur Oxydation verwendet werden.For example, a nonwoven fabric or sheet can be subjected to partial oxidation by z. B. treated with NO 2 by known methods. Both NO 2 -GaS and NO 2 in an organic solvent can be used for the oxidation. The percentage of carboxyl groups depends on the duration of the NO 2 treatment, so that papers with the desired degree of oxidation can be produced. Other oxidizing agents known for the production of oxycellulose, such as. B. Per iodic acid can be used for oxidation.

Ein anderer Weg, Papiere mit eingelagerter Oxycellulose herzustellen, kann durch Zusatz von Oxycellulose zum Faserstoffbrei erfolgen. Dabei kann die zugesetzte Oxycellulose in Faser- oder Pulverform aus gleich- oder andersartigen Cellulosefasern als der Faserstoffbrei bestehen und nach einem der bekannten Verfahren hergestellt sein.Another way of producing paper with incorporated oxycellulose can be by adding Oxycellulose made to pulp. The added oxycellulose can be in fiber or Powder form made from cellulose fibers of the same or different types exist as the pulp and produced by one of the known processes be.

Die Menge der zugemischten Oxycellulose hängt hierbei vom Oxydationsgrad ab. Verwendet man Oxycellulose mit geringem Carboxylgehalt, z. B. unter 10 °/», gibt man zweckmäßig eine solche Menge zu, daß der Anteil der Oxycellulose über 50% der Mischung beträgt, beispielsweise eine Mischung von 60% Oxycellulose mit etwa 30Zo Carboxylgehalt und 40% Baumwollzellstofr. Hat dagegen die verwendete Oxycellulose einen hohen Carboxylgehalt, z.B. bis 22%, wird nur so viel zugemischt, daß ihr Anteil in der Mischung unter 50% liegt, also z.B. eine Mischung von ioB/o Oxycellulose mit 22°/o Carboxylgehalt und 90% Fichtenzellstoff. Diese Zumischungen können im Holländer oder sonstigen Papieraufbereitungsmaschinen oder auch nach Fertigstellung des Papierstoffes an einer geeigneten Stelle der Aufbereitungsanlage, eventuell in einer Zusatz- g0 apparatur, erfolgen, und zwar kann die Oxycellulose sowohl in fester Form als auch in 1 Suspension zugesetzt werden.The amount of oxycellulose mixed in depends on the degree of oxidation. If you use oxycellulose with a low carboxyl content, e.g. B. 10 ° / ", it is expedient to such an amount that the proportion of the oxycellulose is above 50% of the mixture, for example a mixture of 60% oxidized cellulose having about 3 0 and 40% carboxyl Zo Baumwollzellstofr. If, however, the oxidized cellulose used has a high carboxyl content, for example to 22%, is only mixed that their lies proportion in the mixture is below 50%, eg a mixture of io B / o oxycellulose with 22 ° / o carboxyl content and 90% as much Spruce pulp. These admixtures can in Dutch or other paper processing machines, or even after completion of the paper pulp at a suitable location of the processing plant, possibly in a supplementary g 0 apparatus, take place, namely the oxycellulose can be both added in solid form and in 1 suspension.

Schließlich erhält man erfindungsgemäß auch oxycellulosehaltige Papiere, die für papierchromatographische Zwecke geeignet sind, wenn . eine Suspension von Oxycellulose auf die Papierbahn in feiner Verteilung, z. B. durch Aufsprühen, aufgebracht wird.Finally, according to the invention, oxycellulose-containing papers are also obtained which are suitable for paper chromatography Purposes are appropriate if. a suspension of oxycellulose on the paper web in fine distribution, e.g. B. is applied by spraying.

Die Oxycellulose kann hierbei als Pulver oder als Faser suspendiert sein, und die Suspension kann in jedem geeigneten Zeitpunkt der Blattbildung auf der Papiermaschine oder auf die fertige Papierbahn in jeder gewünschten Menge aufgebracht werden.The oxycellulose can be suspended as a powder or as a fiber, and the suspension can be done at any convenient time of sheet formation on the paper machine or on the finished paper web can be applied in any desired amount.

Nach dem Verfahren gemäß der Erfindung ergibt sich durch die Oxycelluloseanteile ein saugfähiges Papier mit sauren Eigenschaften, das den Ausbau der Papierchromatograpbie in Anwendung auf basische .Stoffe ermöglicht.According to the method according to the invention, the oxycellulose components produce an absorbent one Paper with acidic properties, which enables the expansion of paper chromatography in application based on basic substances.

Claims (3)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Saugfähiges, für chromatographische Zwecke geeignetes Papier, dadurch gekennzeichnet, daß es Oxycellulose, welche durch Einwirkung von Oxydationsmitteln auf Cellulosefasern erhalten wurde, in feinster Verteilung enthält.1. Absorbent paper suitable for chromatographic purposes, characterized in that it is oxycellulose, which by Effect of oxidizing agents on cellulose fibers was obtained in extremely fine distribution contains. 2. Verfahren zur Herstellung von Papier nach Anspruch 1, dadurch gekennzeichnet, daß die Oxycellulose in feinster Verteilung in das Papier eingelagert oder aufgebracht wird.2. A method for producing paper according to claim 1, characterized in that the oxycellulose is incorporated into the paper or applied in extremely fine distribution. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der gewünschte Oxycellulosegehalt durch partielle Oxydation eines Faservlieses oder Faserblattes mit an sich bekannten Oxydationsmitteln erreicht wird.3. The method according to claim 1, characterized in that that the desired oxycellulose content by partial oxidation of a fiber fleece or fiber sheet is known per se Oxidizing agents is achieved. Angezogene Druckschriften: Deutsche Patentschrift Nr. 193 909.Referenced publications: German patent specification No. 193 909.
DEZ2391A 1951-12-24 1951-12-25 Absorbent paper suitable for chromatographic purposes and process for its manufacture Expired DE907737C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEZ2391A DE907737C (en) 1951-12-24 1951-12-25 Absorbent paper suitable for chromatographic purposes and process for its manufacture

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE315609X 1951-12-24
DEZ2391A DE907737C (en) 1951-12-24 1951-12-25 Absorbent paper suitable for chromatographic purposes and process for its manufacture
DE241152X 1952-11-24

Publications (1)

Publication Number Publication Date
DE907737C true DE907737C (en) 1954-03-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEZ2391A Expired DE907737C (en) 1951-12-24 1951-12-25 Absorbent paper suitable for chromatographic purposes and process for its manufacture

Country Status (1)

Country Link
DE (1) DE907737C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1000682B (en) * 1953-06-22 1957-01-10 Waldhof Zellstoff Fab Process for the production of absorbent paper for chromatographic purposes with special properties with regard to the separation effect
DE1113359B (en) * 1954-10-20 1961-08-31 Rohm & Haas Process for the production of cellulose paper with ion-exchange properties

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE193909C (en) *

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE193909C (en) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1000682B (en) * 1953-06-22 1957-01-10 Waldhof Zellstoff Fab Process for the production of absorbent paper for chromatographic purposes with special properties with regard to the separation effect
DE1113359B (en) * 1954-10-20 1961-08-31 Rohm & Haas Process for the production of cellulose paper with ion-exchange properties

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