BE458917A - - Google Patents

Info

Publication number

BE458917A

BE458917A BE458917DA BE458917A BE 458917 A BE458917 A BE 458917A BE 458917D A BE458917D A BE 458917DA BE 458917 A BE458917 A BE 458917A

Authority

BE

Belgium

Prior art keywords

cellulose

sodium hydroxide

water

etherification

mixture

Prior art date

Links

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• HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 113
• 229920002678 cellulose Polymers 0.000 claims description 41
• 239000001913 cellulose Substances 0.000 claims description 41
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
• 239000000203 mixture Substances 0.000 claims description 22
• 238000006266 etherification reaction Methods 0.000 claims description 21
• LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
• 239000003795 chemical substances by application Substances 0.000 claims description 13
• 238000000034 method Methods 0.000 claims description 10
• 229920001249 ethyl cellulose Polymers 0.000 claims description 8
• 235000019325 ethyl cellulose Nutrition 0.000 claims description 8
• 239000001856 Ethyl cellulose Substances 0.000 claims description 7
• 229920000609 methyl cellulose Polymers 0.000 claims description 7
• 235000010981 methylcellulose Nutrition 0.000 claims description 7
• ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 6
• 239000001923 methylcellulose Substances 0.000 claims description 6
• 239000003960 organic solvent Substances 0.000 claims description 3
• HRYZWHHZPQKTII-UHFFFAOYSA-N Chloroethane Chemical group CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 claims description 2
• NEHMKBQYUWJMIP-UHFFFAOYSA-N Chloromethane Chemical group ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 claims description 2
• 229940050176 Methyl Chloride Drugs 0.000 claims description 2
• 229920001131 Pulp (paper) Polymers 0.000 claims description 2
• 230000032683 aging Effects 0.000 claims description 2
• 229960003750 ethyl chloride Drugs 0.000 claims description 2
• 150000002170 ethers Chemical class 0.000 claims 1
• 239000007789 gas Substances 0.000 claims 1
• 230000001590 oxidative Effects 0.000 claims 1
• 235000011121 sodium hydroxide Nutrition 0.000 description 35
• 235000019441 ethanol Nutrition 0.000 description 17
• 239000000243 solution Substances 0.000 description 14
• 239000000463 material Substances 0.000 description 13
• 238000002360 preparation method Methods 0.000 description 9
• RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical group CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
• LNAZSHAWQACDHT-XIYTZBAFSA-N (2R,3R,4S,5R,6S)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2S,3R,4S,5R,6R)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2R,3R,4S,5R,6R)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical group CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 description 5
• 229960002900 Methylcellulose Drugs 0.000 description 5
• 229920003086 cellulose ether Polymers 0.000 description 5
• 238000002791 soaking Methods 0.000 description 5
• 239000002168 alkylating agent Substances 0.000 description 4
• 229960004667 ethyl cellulose Drugs 0.000 description 4
• -1 ethylcellulose ethers Chemical class 0.000 description 4
• 239000007864 aqueous solution Substances 0.000 description 3
• 238000006243 chemical reaction Methods 0.000 description 3
• 230000002035 prolonged Effects 0.000 description 3
• KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 3
• 239000011734 sodium Substances 0.000 description 3
• 229910052708 sodium Inorganic materials 0.000 description 3
• 238000007792 addition Methods 0.000 description 2
• UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
• 239000000470 constituent Substances 0.000 description 2
• 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 2
• 239000004615 ingredient Substances 0.000 description 2
• OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
• 150000005217 methyl ethers Chemical class 0.000 description 2
• 230000000704 physical effect Effects 0.000 description 2
• 238000003825 pressing Methods 0.000 description 2
• 230000002522 swelling Effects 0.000 description 2
• 238000009827 uniform distribution Methods 0.000 description 2
• 238000010521 absorption reaction Methods 0.000 description 1
• 230000001476 alcoholic Effects 0.000 description 1
• 125000001931 aliphatic group Chemical group 0.000 description 1
• 239000003513 alkali Substances 0.000 description 1
• 125000000217 alkyl group Chemical group 0.000 description 1
• 230000002152 alkylating Effects 0.000 description 1
• 238000005804 alkylation reaction Methods 0.000 description 1
• 230000015572 biosynthetic process Effects 0.000 description 1
• LSNNMFCWUKXFEE-UHFFFAOYSA-M bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
• 230000015556 catabolic process Effects 0.000 description 1
• 230000004059 degradation Effects 0.000 description 1
• 238000006731 degradation reaction Methods 0.000 description 1
• 238000010790 dilution Methods 0.000 description 1
• 238000009826 distribution Methods 0.000 description 1
• 238000010981 drying operation Methods 0.000 description 1
• 238000003379 elimination reaction Methods 0.000 description 1
• 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
• 230000002349 favourable Effects 0.000 description 1
• 238000005755 formation reaction Methods 0.000 description 1
• 238000005213 imbibition Methods 0.000 description 1
• 238000010348 incorporation Methods 0.000 description 1
• 230000001939 inductive effect Effects 0.000 description 1
• 230000001035 methylating Effects 0.000 description 1
• 230000035515 penetration Effects 0.000 description 1
• 238000004321 preservation Methods 0.000 description 1
• 230000001737 promoting Effects 0.000 description 1
• 238000000746 purification Methods 0.000 description 1
• 239000002994 raw material Substances 0.000 description 1
• 230000000717 retained Effects 0.000 description 1
• 238000007086 side reaction Methods 0.000 description 1
• 239000007787 solid Substances 0.000 description 1
• 238000009987 spinning Methods 0.000 description 1
• 239000000126 substance Substances 0.000 description 1
• 239000011800 void material Substances 0.000 description 1
• 238000009736 wetting Methods 0.000 description 1

Cited By (1)