DE340338C - Process for the production of pulp from straw and from bamboo with carbonate of soda as a disintegrant - Google Patents

Process for the production of pulp from straw and from bamboo with carbonate of soda as a disintegrant

Info

Publication number
DE340338C
DE340338C DE1920340338D DE340338DD DE340338C DE 340338 C DE340338 C DE 340338C DE 1920340338 D DE1920340338 D DE 1920340338D DE 340338D D DE340338D D DE 340338DD DE 340338 C DE340338 C DE 340338C
Authority
DE
Germany
Prior art keywords
soda
carbonate
production
bamboo
straw
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
DE1920340338D
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.)
DR FRITZ PASCHKE
Original Assignee
DR FRITZ PASCHKE
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 DR FRITZ PASCHKE filed Critical DR FRITZ PASCHKE
Application granted granted Critical
Publication of DE340338C publication Critical patent/DE340338C/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
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes

Description

Verfahren zur Herstellung von Zellstoff aus Stroh sowie aus Bambus mit kohlensaurem Natron als Aufschlußmittel. Zum Aufschluß von Pflanzen, zwecks Gewinnung von Faserstoffen dienen im allgemeinen .die mit Ätznatron arbeitenden Verfahren; man hat aber auch schon vorgeschlagen, kohlensaures Natron (Soda) als Aufschlußmittel zu verwenden.Process for the production of pulp from straw as well as from bamboo with carbonate of soda as a digesting agent. For the digestion of plants, for the purpose of Extraction of fibers is generally used. Those who work with caustic soda are used Procedure; But it has also been suggested to use carbonate of soda (soda) as a To use digesting agents.

Gemäß .der Erfindung soll die Herstellung der zum Aufschluß von Gräsern, Bambus u. dgl. notwendigen Sodalösung im regelmäßigen Betriebe wie folgt erfolgen: Die durch trockene Destillation der Ablauge entstandene Sodakohle oder die eingedampfte Ablauge selbst wird mit denjenigen Mengen von kohlensaurem Kalk .und Natriumsulfat, die der vorhandenen Ablaugenkohle entsprechen, nach Art des Leblancprozesses geschmolzen und" dadurch zur Herstellung neuer Sodamengen verwendet, die den mechanischen Verlust des Aufschlusses ersetzen. Die aus so gewonnener Soda hergestellte Lauge enthält gewisse Mengen Ätznatron, die für die Bleichfähigkeit des Zellstoffes nützlich sind, ohne ihn anzugreifen. Durch den Kalk der Schmelze wird die Kieselsäure zum großen Teil zurückgehalten.According to the invention, the production of the digestion of grasses, Bamboo and the like necessary soda solution in regular operation as follows: The soda coal produced by dry distillation of the waste liquor or the evaporated Waste liquor itself is mixed with the amount of carbonate of lime and sodium sulphate which correspond to the existing spent lye, melted according to the Leblanc process and "thereby used for the production of new amounts of soda, the mechanical loss of the digestion. The lye made from soda obtained in this way contains certain amounts of caustic soda, which are useful for the bleaching ability of the pulp, without attacking him. The lime in the melt turns the silica into a large one Part held back.

Claims (1)

PATENT-AN5PRUcH: Verfahren zur Herstellung von Zellstoff aus Stroh sowie aus Bambus mit kohlensaurem Natron als Aufschlußmittel, dä.-durch gekennzeichnet, daß .der Aufschluß mit einer Sodalösung erfolgt, die aus den eingedampften Ablaugen oder aus den nicht kalzinierten Ablaugerückständien nach Art des Leblancprozesses hergestellt wird.PATENT CLAIM: Process for the production of cellulose from straw as well as made of bamboo with carbonate of soda as a disintegrant, denoted by, that .the digestion takes place with a soda solution, which is made from the evaporated waste liquor or from the non-calcined waste liquor residues according to the Leblanc process will be produced.
DE1920340338D 1920-01-14 1920-01-14 Process for the production of pulp from straw and from bamboo with carbonate of soda as a disintegrant Expired DE340338C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE340338T 1920-01-14

Publications (1)

Publication Number Publication Date
DE340338C true DE340338C (en) 1921-09-07

Family

ID=6226420

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920340338D Expired DE340338C (en) 1920-01-14 1920-01-14 Process for the production of pulp from straw and from bamboo with carbonate of soda as a disintegrant

Country Status (1)

Country Link
DE (1) DE340338C (en)

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