MD166C2 - Method of cellulose solutions preparation in water tertric amine oxide and apparatus for realizing thereof - Google Patents

Method of cellulose solutions preparation in water tertric amine oxide and apparatus for realizing thereof

Info

Publication number
MD166C2
MD166C2 MD94-0307A MD940307A MD166C2 MD 166 C2 MD166 C2 MD 166C2 MD 940307 A MD940307 A MD 940307A MD 166 C2 MD166 C2 MD 166C2
Authority
MD
Moldova
Prior art keywords
vessel
cellulose
tertric
water
shaft
Prior art date
Application number
MD94-0307A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD166B1 (en
Inventor
Zikeli Stefan
Wolschner Bernd
Eichinger Dieter
Jurkovic Raimund
Firgo Heinrich
Original Assignee
Lenzing Aktiengesellschaft
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
Priority claimed from AT2036/88A external-priority patent/AT392972B/en
Application filed by Lenzing Aktiengesellschaft filed Critical Lenzing Aktiengesellschaft
Publication of MD166B1 publication Critical patent/MD166B1/en
Publication of MD166C2 publication Critical patent/MD166C2/en

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  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

The summary of the invention consists in the fact that cellulose dispersion in the water-oxide tertric amine mixture persistently is introduced into apparatus and is realized persistent motion of dispersion in form of layer with thickness of 1,5-15 mm distributed on the surface and heated up to temperature of 70-80°C at pressure 100-150 mbar during 3 - 4 min. Radial distance from mixing blades to inner wall of vessel is selected no more the 20 min. Inlet branch pipe for cellulose suspension is situated on the upper part of the vessel. The outlet branch pipe for homogenous solution of cellulose is situated on the lower part of the vessel.The apparatus also is equipped with the distributed ring installed on the mixing shaft for distribution of cellulose suspension on the inner wall of the vessel. The mixing blades are placed on the shaft having the possibiliy of angle inclination changing relatively to the axis of shaft.
MD94-0307A 1988-08-16 1994-09-28 Method of cellulose solutions preparation in water tertric amine oxide and apparatus for realizing thereof MD166C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2036/88A AT392972B (en) 1988-08-16 1988-08-16 METHOD FOR PRODUCING SOLUTIONS OF CELLULOSE AND DEVICE FOR IMPLEMENTING THE METHOD
SU894614835A SU1797630A3 (en) 1988-08-16 1989-08-15 Method of obtaining cellulose solutions in water-containing mixture of tertiary amineoxide

Publications (2)

Publication Number Publication Date
MD166B1 MD166B1 (en) 1995-02-28
MD166C2 true MD166C2 (en) 1995-09-30

Family

ID=25597485

Family Applications (1)

Application Number Title Priority Date Filing Date
MD94-0307A MD166C2 (en) 1988-08-16 1994-09-28 Method of cellulose solutions preparation in water tertric amine oxide and apparatus for realizing thereof

Country Status (1)

Country Link
MD (1) MD166C2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001320A (en) * 1977-07-26 1979-01-31 Akzona Inc Process for making amine oxide solution of cellulose

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001320A (en) * 1977-07-26 1979-01-31 Akzona Inc Process for making amine oxide solution of cellulose

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SU 1058596, 01 J 19 / 00, 1982, 0 *

Also Published As

Publication number Publication date
MD166B1 (en) 1995-02-28

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Legal Events

Date Code Title Description
FG4A Patent for invention issued
IF99 Valid patent on 19990615

Free format text: EXPIRES: 20090814