CS673285A2 - Method of cellulose's carbamate precipitation from alkaline solution with regeneration and recycling chemicals - Google Patents

Method of cellulose's carbamate precipitation from alkaline solution with regeneration and recycling chemicals Download PDF

Info

Publication number
CS673285A2
CS673285A2 CS856732A CS673285A CS673285A2 CS 673285 A2 CS673285 A2 CS 673285A2 CS 856732 A CS856732 A CS 856732A CS 673285 A CS673285 A CS 673285A CS 673285 A2 CS673285 A2 CS 673285A2
Authority
CS
Czechoslovakia
Prior art keywords
solution
sodium hydroxide
cellulose
carbamate
carbonate
Prior art date
Application number
CS856732A
Other languages
Czech (cs)
English (en)
Inventor
Olli T Turunen
Jouko Huttunen
Johan-Fredrik Selin
Jan Fors
Vidar Eklund
Original Assignee
Neste Oy
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 Neste Oy filed Critical Neste Oy
Publication of CS673285A2 publication Critical patent/CS673285A2/cs

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B3/00—Preparation of cellulose esters of organic acids
    • C08B3/14—Preparation of cellulose esters of organic acids in which the organic acid residue contains substituents, e.g. NH2, Cl
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/05—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur
    • C08B15/06—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur containing nitrogen, e.g. carbamates
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Artificial Filaments (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CS856732A 1984-09-27 1985-09-20 Method of cellulose's carbamate precipitation from alkaline solution with regeneration and recycling chemicals CS673285A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI843813A FI69852C (fi) 1984-09-27 1984-09-27 Cykliskt foerfarande foer framstaellning av en alkaliloesning av cellulosakarbamat foer utfaellning av karbamatet och foeraotervinning av kemikalierna

Publications (1)

Publication Number Publication Date
CS673285A2 true CS673285A2 (en) 1991-01-15

Family

ID=8519661

Family Applications (1)

Application Number Title Priority Date Filing Date
CS856732A CS673285A2 (en) 1984-09-27 1985-09-20 Method of cellulose's carbamate precipitation from alkaline solution with regeneration and recycling chemicals

Country Status (17)

Country Link
US (1) US4639514A (fi)
JP (1) JPS6185451A (fi)
AT (1) AT389328B (fi)
BR (1) BR8504745A (fi)
CA (1) CA1236094A (fi)
CS (1) CS673285A2 (fi)
DD (1) DD238983A5 (fi)
DE (1) DE3534371A1 (fi)
FI (1) FI69852C (fi)
FR (1) FR2570706B1 (fi)
GB (1) GB2164942B (fi)
IN (1) IN164446B (fi)
IT (1) IT1201467B (fi)
NO (1) NO162766C (fi)
RO (1) RO92932A (fi)
SE (1) SE461098B (fi)
ZA (1) ZA857171B (fi)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5215125A (en) * 1987-03-13 1993-06-01 Teepak, Inc. Cellulose aminomethanate sausage casings
US4789006A (en) * 1987-03-13 1988-12-06 Teepak, Inc. Cellulose aminomethanate sausage casings
IE66891B1 (en) * 1991-02-15 1996-02-07 Ashfield Eng Co Wexford Ltd An adjustment mechanism for furniture
DE19721609A1 (de) * 1997-05-23 1998-11-26 Zimmer Ag Verfahren und Vorrichtung zum Verspinnen von Cellulosecarbamat-Lösungen
DE19757958A1 (de) * 1997-12-24 1999-07-01 Lurgi Zimmer Ag Verfahren zur Herstellung einer Cellulosecarbamatlösung
DE102004007616B4 (de) * 2004-02-17 2005-12-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung von Fasern und anderen Formkörpern aus Cellulosecarbamat und/oder regenerierter Cellulose
CN100554318C (zh) * 2007-06-20 2009-10-28 中国科学院新疆理化技术研究所 低碱含量纤维素氨基甲酸酯溶液的制备方法
CN105517955A (zh) 2013-07-01 2016-04-20 Ihk纤维公司 纤维素纺丝过程中的碱再循环
EP3969645A4 (en) * 2019-05-15 2023-06-21 TreeToTextile AB RECOVERY OF CHEMICALS IN CELLULOSE SPINNING
FI20225011A1 (fi) 2022-01-07 2023-07-08 Infinited Fiber Company Oy Selluloosapohjaiset tekstiilikuidut

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2103639A (en) * 1934-02-09 1937-12-28 Brown Co Precipitation or setting of hydroxycellulose ethers from alkaline aqueous solutions
BE413827A (fi) * 1935-02-14
NL55623C (fi) * 1935-05-15
GB516672A (en) * 1937-08-30 1940-01-09 Du Pont Improvements in or relating to the production of cellulose derivatives
US2283809A (en) * 1940-02-24 1942-05-19 Du Pont Method of coagulating cellulosic solutions
US2371359A (en) * 1941-12-30 1945-03-13 Battelle Memorial Institute Method of producing solution containing cellulosic material
FI62318C (fi) * 1981-01-27 1982-12-10 Neste Oy Foerfarande foer framstaellning av ett alkaliloesligt cellulosaderivat
FI64603C (fi) * 1981-12-30 1983-12-12 Neste Oy Foerfarande foer utfaellning av cellulosaderivat
FI67561C (fi) * 1982-12-08 1985-04-10 Neste Oy Foerfarande foer upploesning av cellulosakarbamat
FI66624C (fi) * 1983-11-02 1984-11-12 Neste Oy Foerfarande foer framstaellning av cellulosakarbamatfibrer eller -filmer
FI67562C (fi) * 1984-03-12 1985-04-10 Neste Oy Foerfarande foer framstaellning av cellulosakarbamat

Also Published As

Publication number Publication date
FI843813A0 (fi) 1984-09-27
ZA857171B (en) 1986-05-28
BR8504745A (pt) 1986-07-22
RO92932A (ro) 1987-11-30
NO162766B (no) 1989-11-06
JPH0455621B2 (fi) 1992-09-03
DD238983A5 (de) 1986-09-10
IN164446B (fi) 1989-03-18
ATA280885A (de) 1989-04-15
NO853793L (no) 1986-04-01
FR2570706A1 (fr) 1986-03-28
SE461098B (sv) 1990-01-08
CA1236094A (en) 1988-05-03
SE8504456L (sv) 1986-03-28
FR2570706B1 (fr) 1988-05-27
JPS6185451A (ja) 1986-05-01
SE8504456D0 (sv) 1985-09-26
IT1201467B (it) 1989-02-02
DE3534371A1 (de) 1986-04-17
FI69852C (fi) 1986-05-26
IT8522252A0 (it) 1985-09-24
DE3534371C2 (fi) 1988-11-24
GB8523914D0 (en) 1985-10-30
AT389328B (de) 1989-11-27
FI69852B (fi) 1985-12-31
NO162766C (no) 1990-02-14
GB2164942A (en) 1986-04-03
US4639514A (en) 1987-01-27
GB2164942B (en) 1988-03-30

Similar Documents

Publication Publication Date Title
CS673285A2 (en) Method of cellulose's carbamate precipitation from alkaline solution with regeneration and recycling chemicals
US3549319A (en) Production of alkali metal sulfites or bisulfites
CN115947486B (zh) 一种脱硫废液资源化处理工艺及系统
CN109052429A (zh) 一种高品质硫氰酸钠的生产工艺
CA1236095A (en) Cyclic process for producing alkali solution of cellulose carbamate, precipitating the carbamate and recovering the chemicals
US3751560A (en) Multi-stage process for the preparation of sodium bicarbonate
RU2348621C2 (ru) Способ получения 2-меркаптобензотиазола
KR101153283B1 (ko) 알칼리 펄핑 흑액으로부터 아세틸화된 리그닌을 제조하는 방법
EP3126569B1 (en) Method for handling spent wash solution of a lignin-recovery process
US4083930A (en) Method of treating alkali metal sulfide and carbonate mixtures
US4042674A (en) Process for treating the mother liquor by cooling in the production of anhydrous sodium dithionite
CN114702413B (zh) 一种利用副产甲醛和硫酸钠生产羟甲基磺酸钠的工艺
CA2185904C (en) Recovering chemical values from black liquor
JP2003526740A (ja) ポリサルファイドパルプ化プロセス
US3740308A (en) Recovery of sodium chloride from spent pulping liquors
US4432947A (en) Process for obtaining molybdenum as a useful product from molybdeniferous solutions containing alkali metal carbonate, sulphate, hydroxide or hydrogen carbonate and possibly uranium
CN218434925U (zh) 一种利用高浓度二氧化硫尾气生产焦亚硫酸钠的系统
US4218429A (en) Production of alkali metal dithionites from sulfur dioxide, alkali metal formates, and slurried bisulfite compounds at high reactant concentrations
EP0035759A1 (en) Process for producing dithionites
US2724724A (en) Preparation of concentrated solutions of alkylchlorophenoxyacetates
US1045889A (en) Process of making sodium bicarbonate and organic substances from soda-pulp-waste liquor.
US2692279A (en) Process for the sulfonation of benzene
US2439404A (en) Production of alkali metal and alkaline earth metal hydroxides
SU1000399A1 (ru) Способ получени гидрата окиси бари
CN111909064A (zh) 一种利用微通道反应器制备全氯甲硫醇的方法