DE542866C - Process for the production of cellulose derivatives - Google Patents

Process for the production of cellulose derivatives

Info

Publication number
DE542866C
DE542866C DE1930542866D DE542866DD DE542866C DE 542866 C DE542866 C DE 542866C DE 1930542866 D DE1930542866 D DE 1930542866D DE 542866D D DE542866D D DE 542866DD DE 542866 C DE542866 C DE 542866C
Authority
DE
Germany
Prior art keywords
cellulose
production
cellulose derivatives
derivatives
ethers
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
DE1930542866D
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.)
DEBERAG DEUTSCHE BERATUNGSGESE
Metallurg Ind M B H
Original Assignee
DEBERAG DEUTSCHE BERATUNGSGESE
Metallurg Ind M B H
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 DEBERAG DEUTSCHE BERATUNGSGESE, Metallurg Ind M B H filed Critical DEBERAG DEUTSCHE BERATUNGSGESE
Application granted granted Critical
Publication of DE542866C publication Critical patent/DE542866C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B17/00Apparatus for esterification or etherification of cellulose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Description

Verfahren zur Herstellung von Cellulosederivaten Bekanntlich ist bei der Herstellung von Derivaten der Cellulose, wie z. B. der Alkalicellulose, der Celluloseester und -äther, ein Mehrfaches der äquivalenten Menge der- mit der Cellulose in Reaktion tretenden Komponente oder ein Lösungs- oder Verdünnungsmittel für diese Komponente erforderlich, damit eine gleichmäßige und vollständige Umsetzung erreicht wird. Für die Herstellung von Cellulosederivaten, die in Gegenwart von Katalysatoren ausgeführt werden muß, wie bei der Herstellung von Äther und Ester, sind, um die Reaktion in Gang zu bringen unid aufrechtzuerhalten, verhältnismäßig große Mengen der auf die Cellulose zersetzend wirkenden Katalysatoren nötig.Process for the production of cellulose derivatives is known at the production of derivatives of cellulose, such as. B. the alkali cellulose, the Cellulose esters and ethers, a multiple of the equivalent amount of that with the cellulose reacting component or a solvent or diluent for these Component required in order for a smooth and complete implementation to be achieved will. For the production of cellulose derivatives in the presence of catalysts must be carried out, as in the manufacture of ethers and esters, are to the To get the response going unid to maintain relatively large amounts of the catalysts which have a decomposing effect on the cellulose.

Es wurde nun gefunden, daß die durch das Hauptpatent 483 144 geschützte Vorrichtung zum Zerkleinern, Zerreißen, Kneten, Mischen und Trocknen sich besonders gut zur Herstellung von Cellulosederivaten, wie Äther, Ester, Alkalicellulose usw., eignet. Bei Verwendung dieser Vorrichtung ist es möglich, mit wesentlich geringeren Mengen an Reaktionskomponente der Cellulose und an Katalysator als bei .den bisher bekannten Verfahren auszukommen. Somit wird eine erhebliche Ersparnis an Material und Raum erzielt, ohne daß die hergestellten Erzeugnisse in ihren Eigenschaften den nach den bekannten Verfahren gewonnenen Cellulosederivaten nachstehen, zum Teil sind die Verfahrensprodukte in ihrer Einheitlichkeit und Reinheit diesen überlegen.It has now been found that that protected by the main patent 483 144 Device for crushing, tearing, kneading, mixing and drying is particularly good good for the production of cellulose derivatives, such as ethers, esters, alkali cellulose, etc., suitable. When using this device it is possible to use much less Amounts of the cellulose reaction component and of the catalyst than in the case of the previous ones known procedures. Thus, there is a significant saving in material and space is achieved without affecting the properties of the manufactured products are inferior to the cellulose derivatives obtained by the known processes, in part the process products are superior to these in terms of their uniformity and purity.

Das beanspruchte Verfahren kann unter erhöhtem oder vermindertem Druck durchgeführt werden. An Stelle der Cellulose können Cellulosederivate, Stärke und andere Abbauprodukte der Cellulose oder teilweise veresterte Cellulose oder andere Derivate der Cellulose treten.The claimed process can be carried out under increased or reduced pressure be performed. Instead of cellulose, cellulose derivatives, starch and other degradation products of cellulose or partially esterified cellulose or others Cellulose derivatives occur.

Claims (1)

PATENTANSPRUCI3: Verfahren zur Herstellung von Cellulosederivaten oder Derivaten anderer Kohlenhydrate, dadurch gekennzeichnet, daß für die Herstellung die durch das Hauptpatent geschützte Vorrichtung verwendet wird.PATENT CLAIM3: Process for the production of cellulose derivatives or derivatives of other carbohydrates, characterized in that for the production the device protected by the main patent is used.
DE1930542866D 1930-01-14 1930-01-14 Process for the production of cellulose derivatives Expired DE542866C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE542866T 1930-01-14

Publications (1)

Publication Number Publication Date
DE542866C true DE542866C (en) 1932-01-29

Family

ID=6559827

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930542866D Expired DE542866C (en) 1930-01-14 1930-01-14 Process for the production of cellulose derivatives

Country Status (1)

Country Link
DE (1) DE542866C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954693C (en) * 1952-10-15 1956-12-20 Rhodiaceta Process for the continuous esterification of cellulose with organic acids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954693C (en) * 1952-10-15 1956-12-20 Rhodiaceta Process for the continuous esterification of cellulose with organic acids

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