AT93638B

AT93638B - Process for the production of cellulose from wood or similar vegetable fiber materials.

Info

Publication number: AT93638B
Authority: AT
Inventors: Ernst Elgerus
Original assignee: Ernst Elgerus
Priority date: 1921-03-03
Filing date: 1921-03-03
Publication date: 1923-07-25

Description

  

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  Verfahren zur Erzeugung von Zellulose aus Holz oder ähnlichen pflanzlichen Faser- materialien. 
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 Verbrauch von etwa bloss 124.850 Kalorien ergeben, so dass also die Möglichkeit einer etwa, 47% betragenden Wärme ersparnis gegeben erscheint. Da bei diesem Verfahren weiters sämtliche Kochungen unter genau denselben Bedingungen erfolgen, wird die erzeugte Zellulose eine immer gleichmässige Beschaffenheit zeigen und auch sehr fest sein, weil die Fasern sehr geschont werden. Überdies wird hier aber, da das Ankochen entfällt, eine beträchtliche Verkürzung der Kochzeit erzielt und sowohl die Bedienung als auch das Kochen selbst sehr vereinfacht. Der gleichmässige Wärmeverbrauch lässt die Verwendung des elektrischen Stromes zum Erwärmen der Lauge besonders vorteilhaft erscheinen.



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  Process for the production of cellulose from wood or similar vegetable fiber materials.
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 Consumption of only 124,850 calories, so that the possibility of a heat saving of around 47% appears to be given. Since with this process all boiling takes place under exactly the same conditions, the cellulose produced will always show a uniform quality and also be very firm because the fibers are very spared. In addition, since there is no parboiling, the cooking time is reduced considerably and both the operation and the cooking itself are greatly simplified. The even heat consumption makes the use of electricity to heat the lye appear particularly advantageous.

Claims

PATENT CLAIM: Process for the production of cellulose from wood or similar vegetable fiber materials by treating the same in the heat and under pressure in digesters with a cooking liquid which breaks down the fiber masses, characterized in that the fiber to be processed EMI2.1 Cooking liquid driven through a heating element is subjected to a systematic treatment, according to which the cooking liquid coming from the heating element always enters the cooker first, the contents of which appear to be most open, or

the cooking is already complete while the cooking liquid is discharged from the battery from the cooker that was last loaded with fresh wood or other fiber material and switched on again.