DE1593338A1 - Reinigung von Hydroxyalkylcellulose - Google Patents
Reinigung von HydroxyalkylcelluloseInfo
- Publication number
- DE1593338A1 DE1593338A1 DE19661593338 DE1593338A DE1593338A1 DE 1593338 A1 DE1593338 A1 DE 1593338A1 DE 19661593338 DE19661593338 DE 19661593338 DE 1593338 A DE1593338 A DE 1593338A DE 1593338 A1 DE1593338 A1 DE 1593338A1
- Authority
- DE
- Germany
- Prior art keywords
- substitution
- degree
- product
- cellulose
- hydroxyalkyl
- 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.)
- Pending
Links
- 229920013821 hydroxy alkyl cellulose Polymers 0.000 title claims description 7
- 238000000746 purification Methods 0.000 title description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 48
- 238000006467 substitution reaction Methods 0.000 claims description 20
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 14
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 13
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 13
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 10
- 235000010269 sulphur dioxide Nutrition 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 5
- 238000006266 etherification reaction Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 235000010265 sodium sulphite Nutrition 0.000 claims description 5
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 3
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 229940079827 sodium hydrogen sulfite Drugs 0.000 claims 2
- 239000000047 product Substances 0.000 description 21
- 235000011121 sodium hydroxide Nutrition 0.000 description 14
- 239000000243 solution Substances 0.000 description 14
- 239000011260 aqueous acid Substances 0.000 description 12
- 238000006386 neutralization reaction Methods 0.000 description 11
- 206010042674 Swelling Diseases 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 230000008961 swelling Effects 0.000 description 8
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 7
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 6
- 239000003513 alkali Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 235000005018 Pinus echinata Nutrition 0.000 description 3
- 241001236219 Pinus echinata Species 0.000 description 3
- 235000017339 Pinus palustris Nutrition 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000010960 commercial process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000004289 sodium hydrogen sulphite Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002023 wood 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
- C08B11/00—Preparation of cellulose ethers
- C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/02—Alkyl or cycloalkyl ethers
- C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
- C08B11/08—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
- C08B11/22—Isolation
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51709465A | 1965-12-28 | 1965-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1593338A1 true DE1593338A1 (de) | 1970-07-30 |
Family
ID=24058333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19661593338 Pending DE1593338A1 (de) | 1965-12-28 | 1966-11-29 | Reinigung von Hydroxyalkylcellulose |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3451998A (forum.php) |
| AT (1) | AT271497B (forum.php) |
| BE (1) | BE690620A (forum.php) |
| CH (1) | CH464169A (forum.php) |
| DE (1) | DE1593338A1 (forum.php) |
| ES (1) | ES334511A1 (forum.php) |
| FR (1) | FR1503208A (forum.php) |
| GB (1) | GB1125638A (forum.php) |
| NL (1) | NL6617845A (forum.php) |
| SE (1) | SE340361B (forum.php) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5163927A (en) * | 1974-11-28 | 1976-06-02 | Shinetsu Chemical Co | Ketsugoseiryokonajozaihokaizaino seizohoho |
| USRE32408E (en) * | 1982-09-29 | 1987-04-28 | Masonite Corporation | Lignosulfonate-phenol-formaldehyde resin binder |
| CN110156898B (zh) * | 2019-05-30 | 2020-08-07 | 山东一滕新材料股份有限公司 | 一种制备羟乙基纤维素的方法 |
Family Cites Families (1)
| 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 |
-
1965
- 1965-12-28 US US517094A patent/US3451998A/en not_active Expired - Lifetime
-
1966
- 1966-11-09 GB GB52035/66A patent/GB1125638A/en not_active Expired
- 1966-11-29 DE DE19661593338 patent/DE1593338A1/de active Pending
- 1966-12-02 FR FR86062A patent/FR1503208A/fr not_active Expired
- 1966-12-02 BE BE690620D patent/BE690620A/xx unknown
- 1966-12-09 CH CH1757866A patent/CH464169A/fr unknown
- 1966-12-14 ES ES0334511A patent/ES334511A1/es not_active Expired
- 1966-12-16 SE SE17277/66A patent/SE340361B/xx unknown
- 1966-12-20 NL NL6617845A patent/NL6617845A/xx unknown
- 1966-12-28 AT AT1193966A patent/AT271497B/de active
Also Published As
| Publication number | Publication date |
|---|---|
| AT271497B (de) | 1969-06-10 |
| FR1503208A (fr) | 1967-11-24 |
| NL6617845A (forum.php) | 1967-06-29 |
| CH464169A (fr) | 1968-10-31 |
| US3451998A (en) | 1969-06-24 |
| GB1125638A (en) | 1968-08-28 |
| ES334511A1 (es) | 1967-12-01 |
| BE690620A (forum.php) | 1967-06-02 |
| SE340361B (forum.php) | 1971-11-15 |
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