RU95122169A - METHOD FOR PRODUCING CELLULOSE FORMED ARTICLES - Google Patents
METHOD FOR PRODUCING CELLULOSE FORMED ARTICLESInfo
- Publication number
- RU95122169A RU95122169A RU95122169/04A RU95122169A RU95122169A RU 95122169 A RU95122169 A RU 95122169A RU 95122169/04 A RU95122169/04 A RU 95122169/04A RU 95122169 A RU95122169 A RU 95122169A RU 95122169 A RU95122169 A RU 95122169A
- Authority
- RU
- Russia
- Prior art keywords
- aqueous solution
- amine oxide
- cellulose
- precipitation bath
- regenerated
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 title claims 14
- 239000001913 cellulose Substances 0.000 title claims 14
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 239000007864 aqueous solution Substances 0.000 claims 21
- 238000001556 precipitation Methods 0.000 claims 12
- 150000001412 amines Chemical class 0.000 claims 10
- 239000000243 solution Substances 0.000 claims 10
- 150000003512 tertiary amines Chemical class 0.000 claims 10
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-Methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 claims 8
- 239000000126 substance Substances 0.000 claims 5
- 230000008929 regeneration Effects 0.000 claims 4
- 238000011069 regeneration method Methods 0.000 claims 4
- 229920000875 Dissolving pulp Polymers 0.000 claims 3
- 239000003957 anion exchange resin Substances 0.000 claims 3
- 230000003078 antioxidant Effects 0.000 claims 2
- 239000003963 antioxidant agent Substances 0.000 claims 2
- 238000000465 moulding Methods 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 1
- 230000002378 acidificating Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003729 cation exchange resin Substances 0.000 claims 1
- 150000001768 cations Chemical class 0.000 claims 1
- 239000003518 caustics Substances 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 150000007524 organic acids Chemical class 0.000 claims 1
- 235000005985 organic acids Nutrition 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
Claims (15)
pH = -0,0015 x A2 + 0,2816 x A + f,
где A означает концентрацию третичной окиси амина в водном растворе, выраженную в мас.% водного раствора, и удовлетворяет условию 40% ≤ А ≤ 86%, предпочтительно 70% ≤ А ≤ 80%,
а f имеет для верхнего предела значение 1,00 и для нижнего предела значение -1,80, предпочтительно -1,00.1. A method of producing a cellulosic molded product, comprising dissolving cellulose in an aqueous solution of tertiary amine oxide, in particular N-methylmorpholine-N-oxide (NMMO), to form a moldable cellulose solution; molding the cellulose solution and introducing the molded cellulose solution into an aqueous precipitation bath in which the cellulose is precipitated, thereby forming a molded article and a spent precipitation bath; regeneration of the spent precipitation bath, in which a regenerated aqueous solution of amine oxide is formed, again used in the first stage for dissolving cellulose, characterized in that the first stage uses a regenerated aqueous solution of amine oxide having a hydrogen pH in the range, the upper and lower limits of which are determined depending on the concentration of tertiary amine oxide by the equation
pH = -0.0015 x A 2 + 0.2816 x A + f,
where A means the concentration of tertiary amine oxide in an aqueous solution, expressed in wt.% aqueous solution, and satisfies the condition 40% ≤ A ≤ 86%, preferably 70% ≤ A ≤ 80%,
and f has a value of 1.00 for the upper limit and a value of -1.80, preferably -1.00, for the lower limit.
pH = -0,0015 • A2 + 0,2816 • A + f,
где A означает концентрацию третичной окиси амина в водном растворе, выраженную в мас. % водного раствора, и удовлетворяет условию 40% ≤ А ≤ 86%, предпочтительно 70% ≤ А ≤ 80%,
а f имеет для верхнего предела значение 1,00 и для нижнего предела значение -1,80, предпочтительно -1,00.11. A regenerated concentrated aqueous solution of tertiary amine oxide, in particular NMMO, for preparing a moldable cellulose solution with a pH in the range, the upper and lower limits of which are determined depending on the concentration of tertiary amine oxide by the equation:
pH = -0.0015 • A 2 + 0.2816 • A + f,
where A means the concentration of tertiary amine oxide in an aqueous solution, expressed in wt. % aqueous solution, and satisfies the condition 40% ≤ A ≤ 86%, preferably 70% ≤ A ≤ 80%,
and f has a value of 1.00 for the upper limit and a value of -1.80, preferably -1.00, for the lower limit.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0043094A ATA43094A (en) | 1994-03-01 | 1994-03-01 | METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES, SOLUTION OF A TERT. AMINOXIDS AND THEIR WORK-UP |
ATA430/94 | 1994-03-01 | ||
PCT/AT1995/000021 WO1995023827A1 (en) | 1994-03-01 | 1995-02-01 | Process for producing cellulose shaped bodies |
Publications (2)
Publication Number | Publication Date |
---|---|
RU95122169A true RU95122169A (en) | 1997-11-27 |
RU2142523C1 RU2142523C1 (en) | 1999-12-10 |
Family
ID=3490408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU95122169A RU2142523C1 (en) | 1994-03-01 | 1995-02-01 | Method for manufacture of formed cellulose products |
Country Status (37)
Country | Link |
---|---|
US (2) | US5602247A (en) |
EP (2) | EP0695324B2 (en) |
JP (2) | JP2703117B2 (en) |
KR (1) | KR0173006B1 (en) |
CN (2) | CN1124044A (en) |
AT (3) | ATA43094A (en) |
AU (2) | AU680337B2 (en) |
BG (1) | BG62409B1 (en) |
BR (2) | BR9505780A (en) |
CA (1) | CA2160785C (en) |
CZ (1) | CZ290928B6 (en) |
DE (5) | DE19580076D2 (en) |
EE (1) | EE9500061A (en) |
ES (1) | ES2109089T5 (en) |
FI (2) | FI114220B (en) |
GB (2) | GB2291834B (en) |
GR (1) | GR3025123T3 (en) |
HK (1) | HK1004778A1 (en) |
HR (1) | HRP950076B1 (en) |
HU (1) | HU214289B (en) |
ID (1) | ID917B (en) |
IL (1) | IL112678A (en) |
LV (1) | LV11331B (en) |
MA (1) | MA23460A1 (en) |
MY (1) | MY115340A (en) |
NO (2) | NO954351L (en) |
NZ (1) | NZ278816A (en) |
PE (1) | PE46295A1 (en) |
PL (1) | PL181246B1 (en) |
RO (1) | RO113353B1 (en) |
RU (1) | RU2142523C1 (en) |
SI (1) | SI0695324T2 (en) |
SK (1) | SK281026B6 (en) |
TW (1) | TW460479B (en) |
WO (2) | WO1995023885A1 (en) |
YU (1) | YU48932B (en) |
ZA (1) | ZA951333B (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATA43094A (en) * | 1994-03-01 | 1995-04-15 | Chemiefaser Lenzing Ag | METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES, SOLUTION OF A TERT. AMINOXIDS AND THEIR WORK-UP |
AT402643B (en) * | 1995-08-18 | 1997-07-25 | Chemiefaser Lenzing Ag | METHOD FOR CLEANING AN AQUEOUS SOLUTION METHOD FOR CLEANING AN AQUEOUS SOLUTION OF A TERTIARY AMINOXIDE OF A TERTIARY AMINOXIDE |
US5858285A (en) * | 1995-08-18 | 1999-01-12 | Lenzing Aktiengesellschaft | Process for the production of an aqueous solution of a tertiary amine-oxide |
AT408547B (en) * | 1995-09-26 | 2001-12-27 | Chemiefaser Lenzing Ag | METHOD FOR TRANSPORTING A SOLUTION OF CELLULOSE IN AN AQUEOUS TERTIARY AMINOXIDE |
US6331354B1 (en) | 1996-08-23 | 2001-12-18 | Weyerhaeuser Company | Alkaline pulp having low average degree of polymerization values and method of producing the same |
US6471727B2 (en) | 1996-08-23 | 2002-10-29 | Weyerhaeuser Company | Lyocell fibers, and compositions for making the same |
US6306334B1 (en) | 1996-08-23 | 2001-10-23 | The Weyerhaeuser Company | Process for melt blowing continuous lyocell fibers |
US6210801B1 (en) | 1996-08-23 | 2001-04-03 | Weyerhaeuser Company | Lyocell fibers, and compositions for making same |
AT404846B (en) * | 1997-06-16 | 1999-03-25 | Chemiefaser Lenzing Ag | COMPOSITION CONTAINING FINE SOLID PARTICLES |
US5942167A (en) * | 1997-08-12 | 1999-08-24 | Viskase Corporation | Method of making a cellulose food casing including solvent recovery |
CN1061106C (en) * | 1997-12-09 | 2001-01-24 | 宜宾丝丽雅集团有限公司 | Method for producing cellulose fiber by dissolvant method |
US6096258A (en) * | 1998-01-20 | 2000-08-01 | Viskase Corporation | Method and apparatus for forming a cellulose article including solvent recovery means |
US6773648B2 (en) | 1998-11-03 | 2004-08-10 | Weyerhaeuser Company | Meltblown process with mechanical attenuation |
DE10009471B4 (en) | 2000-02-28 | 2006-07-27 | Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. | Process for the preparation of a solution of increased thermal stability of cellulose in aqueous amine oxide |
AT410319B (en) * | 2001-07-25 | 2003-03-25 | Chemiefaser Lenzing Ag | CELLULOSE SPONGE AND METHOD FOR THE PRODUCTION THEREOF |
FR2880619B1 (en) * | 2005-01-10 | 2010-03-12 | Cebal Sas | PLASTIC PACKAGES, IN PARTICULAR FLEXIBLE TUBES, CONTAINING REACTIVE SUBSTANCES ASSOCIATED WITH A PRESENCE WITNESS |
ES2360828T3 (en) * | 2006-03-29 | 2011-06-09 | Virginia Tech Intellectual Properties, Inc. | LIGNOCELLULOSE FRACTIONATION BASED ON CELLULOSE SOLVENT WITH MODERATED REACTION CONDITIONS AND REAGENT CYCLING. |
RU2509778C2 (en) * | 2008-03-14 | 2014-03-20 | Вирджиния Тек Интелекчуэл Пропертиз, Инк. | Method and apparatus for pretreatment of lignocellulose using cellulose super-solvent and highly volatile solvents |
EP2565303A1 (en) * | 2011-09-02 | 2013-03-06 | Aurotec GmbH | Extrusion method |
US10809718B2 (en) | 2017-07-28 | 2020-10-20 | Loon Llc | Systems and methods for controlling aerial vehicles |
KR101904771B1 (en) * | 2017-09-22 | 2018-10-05 | 오영세 | The lyocell fibers and The method for produce it |
US10890885B2 (en) | 2017-12-21 | 2021-01-12 | Loon Llc | Managing power of aerial vehicles |
CN110357972A (en) * | 2018-04-09 | 2019-10-22 | 株式会社大赛璐 | The manufacturing method of cellulose acetate |
CN109468688B (en) * | 2018-11-22 | 2021-06-08 | 绍兴美标纺织品检验有限公司 | Method for spinning cellulose fibres |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT185793B (en) * | 1952-12-02 | 1956-06-11 | Erwin Otto Haberfeld | Pay bag (slip) for payroll accounting |
DE2000082A1 (en) * | 1970-01-02 | 1971-07-15 | Wolff Walsrode Ag | Inhibition of decomposition of alkali cellu- - lose |
US4324593A (en) * | 1978-09-01 | 1982-04-13 | Akzona Incorporated | Shapeable tertiary amine N-oxide solution of cellulose, shaped cellulose product made therefrom and process for preparing the shapeable solution and cellulose products |
DE3034685C2 (en) * | 1980-09-13 | 1984-07-05 | Akzo Gmbh, 5600 Wuppertal | Cellulose molding and spinning mass with low proportions of low molecular weight breakdown products |
DD218104B5 (en) * | 1983-10-17 | 1996-06-13 | Thueringisches Inst Textil | Process for the preparation of thermally stable cellulose-amine oxide solutions |
US4577013A (en) * | 1983-12-22 | 1986-03-18 | Ciba-Geigy Corporation | Ionically modified cellulose material, its preparation and its use |
US4724207A (en) * | 1984-02-02 | 1988-02-09 | Cuno Incorporated | Modified siliceous chromatographic supports |
DD229708A1 (en) * | 1984-12-13 | 1985-11-13 | Schwarza Chemiefaser | METHOD FOR PRODUCING STABLE POLYMER SOLUTIONS |
DD254199B5 (en) * | 1986-12-04 | 1994-01-05 | Thueringische Faser Ag Schwarz | PROCESS FOR CLEANING WAFERRIGER N-METHYLMORPHOLIN N-OXYD SOLUTIONS |
DE3872799T2 (en) * | 1987-08-31 | 1993-03-04 | Sharp Kk | USE OF A POLYIMIDATION EXCHANGE RESIN. |
WO1989009643A1 (en) * | 1988-04-12 | 1989-10-19 | Peter Grandics | Novel crosslinked cellulose chromatography media |
AT392972B (en) * | 1988-08-16 | 1991-07-25 | Chemiefaser Lenzing Ag | METHOD FOR PRODUCING SOLUTIONS OF CELLULOSE AND DEVICE FOR IMPLEMENTING THE METHOD |
AT392776B (en) * | 1989-10-16 | 1991-06-10 | Chemiefaser Lenzing Ag | METHOD FOR PURIFYING AQUEOUS SOLUTIONS OF N-METHYLMORPHOLIN-N-OXIDE |
AT395608B (en) * | 1990-11-26 | 1993-02-25 | Chemiefaser Lenzing Ag | METHOD FOR PURIFYING AQUEOUS N-METHYLMORPHOLIN-N-OXIDE SOLUTIONS |
GB9125594D0 (en) * | 1991-12-02 | 1992-01-29 | Courtaulds Plc | Purifying solutions |
AT396930B (en) * | 1992-01-23 | 1993-12-27 | Chemiefaser Lenzing Ag | AMINOXIDE |
AT399519B (en) * | 1993-09-14 | 1995-05-26 | Chemiefaser Lenzing Ag | FORM- OR SPINNING CONTAINER CONTAINING CELLULOSE AND METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES |
ATA43094A (en) * | 1994-03-01 | 1995-04-15 | Chemiefaser Lenzing Ag | METHOD FOR PRODUCING CELLULOSIC MOLDED BODIES, SOLUTION OF A TERT. AMINOXIDS AND THEIR WORK-UP |
-
1994
- 1994-03-01 AT AT0043094A patent/ATA43094A/en not_active Application Discontinuation
-
1995
- 1995-02-01 DE DE19580076T patent/DE19580076D2/en not_active Expired - Fee Related
- 1995-02-01 CN CN95190150A patent/CN1124044A/en active Pending
- 1995-02-01 AT AT95906835T patent/ATE160182T1/en not_active IP Right Cessation
- 1995-02-01 JP JP7522558A patent/JP2703117B2/en not_active Expired - Fee Related
- 1995-02-01 DE DE59500974T patent/DE59500974D1/en not_active Expired - Fee Related
- 1995-02-01 SK SK1340-95A patent/SK281026B6/en unknown
- 1995-02-01 BR BR9505780A patent/BR9505780A/en not_active Application Discontinuation
- 1995-02-01 KR KR1019950704798A patent/KR0173006B1/en not_active IP Right Cessation
- 1995-02-01 CZ CZ19952950A patent/CZ290928B6/en not_active IP Right Cessation
- 1995-02-01 US US08/454,315 patent/US5602247A/en not_active Expired - Fee Related
- 1995-02-01 CA CA002160785A patent/CA2160785C/en not_active Expired - Fee Related
- 1995-02-01 RU RU95122169A patent/RU2142523C1/en not_active IP Right Cessation
- 1995-02-01 EE EE9500061A patent/EE9500061A/en unknown
- 1995-02-01 SI SI9530039T patent/SI0695324T2/en not_active IP Right Cessation
- 1995-02-01 US US08/454,320 patent/US5628941A/en not_active Expired - Lifetime
- 1995-02-01 GB GB9521214A patent/GB2291834B/en not_active Revoked
- 1995-02-01 EP EP95906834A patent/EP0695324B2/en not_active Expired - Lifetime
- 1995-02-01 BR BR9505855A patent/BR9505855A/en not_active IP Right Cessation
- 1995-02-01 AU AU15275/95A patent/AU680337B2/en not_active Ceased
- 1995-02-01 EP EP95906835A patent/EP0696330B1/en not_active Expired - Lifetime
- 1995-02-01 DE DE19580078T patent/DE19580078D2/en not_active Ceased
- 1995-02-01 PL PL95311309A patent/PL181246B1/en not_active IP Right Cessation
- 1995-02-01 HU HU9503112A patent/HU214289B/en not_active IP Right Cessation
- 1995-02-01 CN CN95190142A patent/CN1085994C/en not_active Expired - Lifetime
- 1995-02-01 AU AU15274/95A patent/AU690202B2/en not_active Ceased
- 1995-02-01 AT AT95906834T patent/ATE159746T1/en not_active IP Right Cessation
- 1995-02-01 ES ES95906834T patent/ES2109089T5/en not_active Expired - Lifetime
- 1995-02-01 NZ NZ278816A patent/NZ278816A/en not_active IP Right Cessation
- 1995-02-01 WO PCT/AT1995/000022 patent/WO1995023885A1/en active IP Right Grant
- 1995-02-01 GB GB9521213A patent/GB2291833B/en not_active Expired - Fee Related
- 1995-02-01 WO PCT/AT1995/000021 patent/WO1995023827A1/en active IP Right Grant
- 1995-02-01 JP JP7522559A patent/JP2758991B2/en not_active Expired - Lifetime
- 1995-02-01 DE DE59500899T patent/DE59500899D1/en not_active Expired - Lifetime
- 1995-02-01 RO RO95-01894A patent/RO113353B1/en unknown
- 1995-02-08 TW TW084101059A patent/TW460479B/en not_active IP Right Cessation
- 1995-02-16 IL IL11267895A patent/IL112678A/en not_active IP Right Cessation
- 1995-02-17 MY MYPI95000405A patent/MY115340A/en unknown
- 1995-02-17 ZA ZA951333A patent/ZA951333B/en unknown
- 1995-02-20 HR HRA430/94A patent/HRP950076B1/en not_active IP Right Cessation
- 1995-02-23 MA MA23788A patent/MA23460A1/en unknown
- 1995-02-27 YU YU12695A patent/YU48932B/en unknown
- 1995-02-28 ID IDP950328A patent/ID917B/en unknown
- 1995-02-28 PE PE1995262903A patent/PE46295A1/en not_active Application Discontinuation
- 1995-05-17 DE DE29508167U patent/DE29508167U1/en not_active Expired - Lifetime
- 1995-10-12 LV LVP-95-308A patent/LV11331B/en unknown
- 1995-10-30 BG BG100106A patent/BG62409B1/en unknown
- 1995-10-30 NO NO954351A patent/NO954351L/en unknown
- 1995-10-30 NO NO954350A patent/NO308370B1/en unknown
- 1995-10-31 FI FI955204A patent/FI114220B/en not_active IP Right Cessation
- 1995-10-31 FI FI955205A patent/FI955205A0/en unknown
-
1997
- 1997-10-30 GR GR970402739T patent/GR3025123T3/en unknown
-
1998
- 1998-04-22 HK HK98103364A patent/HK1004778A1/en not_active IP Right Cessation
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