DE329566C - Process for the production of pulp - Google Patents

Process for the production of pulp

Info

Publication number
DE329566C
DE329566C DE1920329566D DE329566DD DE329566C DE 329566 C DE329566 C DE 329566C DE 1920329566 D DE1920329566 D DE 1920329566D DE 329566D D DE329566D D DE 329566DD DE 329566 C DE329566 C DE 329566C
Authority
DE
Germany
Prior art keywords
wood
cellulose
containing substances
catalysts
pressure
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
DE1920329566D
Other languages
German (de)
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.)
KOELN ROTTWEIL AKT GES
Original Assignee
KOELN ROTTWEIL AKT GES
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 KOELN ROTTWEIL AKT GES filed Critical KOELN ROTTWEIL AKT GES
Application granted granted Critical
Publication of DE329566C publication Critical patent/DE329566C/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/003—Pulping cellulose-containing materials with organic compounds

Description

Verfahren zur Herstellung von Zellstoff. Es ist bekannt. (s. Chemie und Struktür der Pflanzen-Zellmembran von Dr. J. K ü n i g und Dr. E. R u m p), daB Glyzerin-Schwvefelsäure aus Holz Fette, stickstoffhaltige Stoffe, Lignin und Hemizellulosen bis auf geringe Mengen herauslöst und die Rohfaser freilegt, ohne den eigentlichen Zellstoff wesentlich anzugreifen. Es wurde nun gefunden, daB diese Eigenschaft des Freilegens des Zellstoffes aus Holz und anderen zellstoffhaltigen Stoffen dem Glykol in noch stärkerer Weise zukommt als dem Glyzerin, besonders bei Zusatz von Katalysatoren, wie Schwefelsäure, Chlorzink, Chlorwasserstoff u. a.Process for the production of pulp. It is known. (see chemistry and structure of the plant cell membrane by Dr. J. K ü n i g and Dr. E. R u m p), that glycerol-sulfuric acid from wood fats, nitrogenous substances, lignin and Dissolves hemicelluloses except for small amounts and exposes the crude fiber without to attack the actual pulp significantly. It has now been found that this Property of exposing the pulp from wood and other cellulose-containing substances Substances to the glycol in an even stronger way than the glycerine, especially with Addition of catalysts such as sulfuric acid, zinc chloride, hydrogen chloride and others.

Es hat sich weiter gezeigt, daB Mineralsäureester der mehrwertigen Alkohole, wie z. B. deren Chlorhydrine, und ein- oder mehrwertige saure Schwefelsäureester ausgezeichnete HolzaufschluBmittel sind. Diese Ester wirken auch als Zusätze zu mehrwertigen Alkoholen beschleunigend.It has also been shown that mineral acid esters of the polyvalent Alcohols such as B. their chlorohydrins, and mono- or polyvalent acidic sulfuric acid esters are excellent wood pulping agents. These esters also act as additives too Accelerating polyhydric alcohols.

Der AufschluB kann in allen Fällen durch erhdhte Temperatur und erhdhten Druck beschleunigt werden.The decomposition can in all cases by increased temperature and increased Pressure can be accelerated.

Beispiel I.Example I.

1o g zerhacktes Tannenholz werden mit 4o ccm Dichlorhydrin am Rückfluißkühler gekocht. Der Aufschluiß ist unter Umständen nach 1o Minutern beendigt.10 g of chopped fir wood are refluxed with 40 ccm of dichlorohydrin cooked. The opening up may end after 10 minutes.

Durch die Béhandlung von Holz und anderen zellstoffhaltigen Stoffen mit den obengenannten Kdrpern (Glykol, Chlorhydrinen u. a.) werden die inkrustierenden Bestandteile se weit gelockert Oder verändert, daß sie nunmehr auch in anderen Körpern löslich sied, die sonst nicht unmittelbar auf Holz aufschlieBend einwirken, wie z. B. Azeton, Essigsäure u. a.By treating wood and other cellulose-containing materials with the abovementioned bodies (glycol, chlorohydrins, etc.) the encrusting Components have been loosened or changed so that they can now also be found in other bodies soluble boil, which otherwise do not act directly on wood, such as z. Acetone, acetic acid and others.

Beispiel2. 1o g zerhacktes Halz werden mit der zweifachen Menge Dichlorhydrin erhitzt. Nachdem das Holz vollständig erweicht ist, wird das Holz mit Azeton extrahiert und auf diese Weise der Zellstoff freigelegt.Example2. 10 g of chopped up malt are mixed with twice the amount of dichlorohydrin heated. After the wood has completely softened, the wood is extracted with acetone and in this way the pulp is exposed.

Claims (4)

PATENT-ANSPRÜCHE: -I. Verfahren zur Herstellung von Zellstoff, dadurch gekennzeichnet, daß Holz und andere zellstoffhaltige Stoffe mit Glykol bei erhdhter Temperatur mit Oder ohne Zusatz von Katalysatorern und mit oder ohne Druck behandelt werden. PATENT CLAIMS: -I. Process for making pulp, thereby characterized that wood and other cellulose-containing substances with glycol at increased Treated temperature with or without the addition of catalysts and with or without pressure will. 2. Verfahren nach Patentanspruch I, dadurch gekennzeichnet, daß Holz und andere zellstoffhaltige Stoffe mit Mineralsäureestern der mehrwertigen Alkohole, wie z. B. des Glykols, des Glyzerins. u. a., bei erhöhter Temperatur mit oder ohne Zusatz von Katalysatoren und mit Oder ohne Druck behandelt werden. 2. The method according to claim I, characterized in that wood and other cellulose-containing substances with mineral acid esters of polyhydric alcohols, such as B. of glycol, glycerine. inter alia, at elevated temperature with or without Addition of catalysts and treated with or without pressure. 3. Verfahren nach Patentanspruch I, dadurch gekennzeichnet, daß Holz und andere zellstoffhaltige Stoffe mit Mischungen mehrwertiger . Alkohole und deren Mineralsâureestern bei erhdhter Temperatur mit oder ohne weitere Katalysatoren und mit odes ohne Druck behandelt werden. - 3. Procedure according to claim I, characterized in that wood and other cellulose-containing Substances with mixtures of polyvalent. Alcohols and their mineral acid esters at increased Treated temperature with or without further catalysts and with or without pressure will. - 4. Verfahren nach Patentanspruch I, dadurch gekennzeichnet, daß durch Behandlung von Holz und anderen zêllstoff- haltigen Stoffen mit den @iiï" deri 'Patent-- ansprüchëri ï; '2 `uii(t--e-. genannten Kôrpern beierhï7er % patur_ die inkrustie-
renden Substanzen derartig gelockert oder verändert werden, daß sie nunmehr in zahlreichen organischen Verbindungen ldslich sind, die auf das unbehandelte Holz sonst ohne nennenswerten Einfluß waren, z. B. Azeton, Essigsäure u. a.4. The method according to claim I, characterized in that by treating wood and other zêllstoff- containing substances with the @ iiï "deri 'patent-- claims ï; '2 `uii (t - e-. Named bodies beierhï7er% patur_ the incrustation
The resulting substances are loosened or changed in such a way that they are now soluble in numerous organic compounds that otherwise had no significant influence on the untreated wood, e.g. B. acetone, acetic acid and others
DE1920329566D 1920-01-16 1920-01-16 Process for the production of pulp Expired DE329566C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE329566T 1920-01-16

Publications (1)

Publication Number Publication Date
DE329566C true DE329566C (en) 1920-11-23

Family

ID=6187189

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920329566D Expired DE329566C (en) 1920-01-16 1920-01-16 Process for the production of pulp

Country Status (1)

Country Link
DE (1) DE329566C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747560C (en) * 1940-11-13 1944-10-04 Feldmuehle Papier Und Zellstof Process for the digestion of cellulose-containing raw materials
US2703279A (en) * 1949-05-31 1955-03-01 British Celanese Organic acid digestion of lignocellulose
DE1021244B (en) * 1953-01-06 1957-12-19 Paul Zschimmer Dr Process for chemical processing of peat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747560C (en) * 1940-11-13 1944-10-04 Feldmuehle Papier Und Zellstof Process for the digestion of cellulose-containing raw materials
US2703279A (en) * 1949-05-31 1955-03-01 British Celanese Organic acid digestion of lignocellulose
DE1021244B (en) * 1953-01-06 1957-12-19 Paul Zschimmer Dr Process for chemical processing of peat

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