CA1236094A - Cyclic process for producing alkali solution of cellulose carbamate, precipitating the carbamate and recovering the chemicals - Google Patents
Cyclic process for producing alkali solution of cellulose carbamate, precipitating the carbamate and recovering the chemicalsInfo
- Publication number
- CA1236094A CA1236094A CA000491570A CA491570A CA1236094A CA 1236094 A CA1236094 A CA 1236094A CA 000491570 A CA000491570 A CA 000491570A CA 491570 A CA491570 A CA 491570A CA 1236094 A CA1236094 A CA 1236094A
- Authority
- CA
- Canada
- Prior art keywords
- solution
- sodium hydroxide
- cellulose carbamate
- carbamate
- precipitating
- 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
Links
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 title claims abstract description 50
- 239000001913 cellulose Substances 0.000 title claims abstract description 38
- 229920002678 cellulose Polymers 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000008569 process Effects 0.000 title claims abstract description 28
- 230000001376 precipitating effect Effects 0.000 title claims abstract description 23
- 239000003513 alkali Substances 0.000 title claims abstract description 16
- 125000004122 cyclic group Chemical group 0.000 title claims abstract description 10
- 239000000126 substance Substances 0.000 title claims abstract description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 138
- 239000000243 solution Substances 0.000 claims abstract description 86
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 50
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 25
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 24
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 22
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000292 calcium oxide Substances 0.000 claims abstract description 15
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 12
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 11
- 239000002244 precipitate Substances 0.000 claims abstract description 7
- 239000007864 aqueous solution Substances 0.000 claims abstract description 6
- 229920000875 Dissolving pulp Polymers 0.000 claims abstract description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 229940001593 sodium carbonate Drugs 0.000 claims 5
- 235000017550 sodium carbonate Nutrition 0.000 claims 5
- 235000012255 calcium oxide Nutrition 0.000 abstract description 11
- 230000001131 transforming effect Effects 0.000 abstract description 2
- 229940087373 calcium oxide Drugs 0.000 abstract 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 35
- 229940083608 sodium hydroxide Drugs 0.000 description 33
- 235000010980 cellulose Nutrition 0.000 description 27
- 238000009987 spinning Methods 0.000 description 17
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 9
- 239000000835 fiber Substances 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000001117 sulphuric acid Substances 0.000 description 5
- 235000011149 sulphuric acid Nutrition 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229940106135 cellulose Drugs 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000009993 causticizing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI843813 | 1984-09-27 | ||
| 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 |
|---|---|
| CA1236094A true CA1236094A (en) | 1988-05-03 |
Family
ID=8519661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000491570A Expired CA1236094A (en) | 1984-09-27 | 1985-09-26 | Cyclic process for producing alkali solution of cellulose carbamate, precipitating the carbamate and recovering the chemicals |
Country Status (17)
Families Citing this family (11)
| 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 (en) | 2022-01-07 | 2023-07-08 | Infinited Fiber Company Oy | Cellulose-based textile fibers |
| CN117306007A (zh) * | 2023-09-28 | 2023-12-29 | 赣南师范大学 | 一种凝固浴及其应用方法和再生方法 |
Family Cites Families (11)
| 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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1935-02-14 | |||
| NL55623C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 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 |
-
1984
- 1984-09-27 FI FI843813A patent/FI69852C/fi not_active IP Right Cessation
-
1985
- 1985-09-18 ZA ZA857171A patent/ZA857171B/xx unknown
- 1985-09-20 CS CS856732A patent/CS673285A2/cs unknown
- 1985-09-23 IN IN674/CAL/85A patent/IN164446B/en unknown
- 1985-09-24 IT IT22252/85A patent/IT1201467B/it active
- 1985-09-24 US US06/779,702 patent/US4639514A/en not_active Expired - Fee Related
- 1985-09-25 DD DD85281023A patent/DD238983A5/de not_active IP Right Cessation
- 1985-09-26 NO NO853793A patent/NO162766C/no unknown
- 1985-09-26 DE DE19853534371 patent/DE3534371A1/de active Granted
- 1985-09-26 SE SE8504456A patent/SE461098B/xx not_active IP Right Cessation
- 1985-09-26 BR BR8504745A patent/BR8504745A/pt unknown
- 1985-09-26 AT AT0280885A patent/AT389328B/de not_active IP Right Cessation
- 1985-09-26 CA CA000491570A patent/CA1236094A/en not_active Expired
- 1985-09-27 FR FR8514367A patent/FR2570706B1/fr not_active Expired
- 1985-09-27 JP JP60214408A patent/JPS6185451A/ja active Granted
- 1985-09-27 RO RO85120222A patent/RO92932A/ro unknown
- 1985-09-27 GB GB08523914A patent/GB2164942B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2164942B (en) | 1988-03-30 |
| IN164446B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1989-03-18 |
| ZA857171B (en) | 1986-05-28 |
| CS673285A2 (en) | 1991-01-15 |
| FI69852B (fi) | 1985-12-31 |
| JPH0455621B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-09-03 |
| DD238983A5 (de) | 1986-09-10 |
| ATA280885A (de) | 1989-04-15 |
| BR8504745A (pt) | 1986-07-22 |
| DE3534371C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-11-24 |
| IT1201467B (it) | 1989-02-02 |
| RO92932A (ro) | 1987-11-30 |
| US4639514A (en) | 1987-01-27 |
| JPS6185451A (ja) | 1986-05-01 |
| AT389328B (de) | 1989-11-27 |
| DE3534371A1 (de) | 1986-04-17 |
| SE8504456L (sv) | 1986-03-28 |
| FR2570706A1 (fr) | 1986-03-28 |
| SE8504456D0 (sv) | 1985-09-26 |
| FI843813A0 (fi) | 1984-09-27 |
| NO162766B (no) | 1989-11-06 |
| NO162766C (no) | 1990-02-14 |
| IT8522252A0 (it) | 1985-09-24 |
| GB8523914D0 (en) | 1985-10-30 |
| FI69852C (fi) | 1986-05-26 |
| SE461098B (sv) | 1990-01-08 |
| FR2570706B1 (fr) | 1988-05-27 |
| NO853793L (no) | 1986-04-01 |
| GB2164942A (en) | 1986-04-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |