BE458938A - - Google Patents

Info

Publication number

BE458938A

BE458938A BE458938DA BE458938A BE 458938 A BE458938 A BE 458938A BE 458938D A BE458938D A BE 458938DA BE 458938 A BE458938 A BE 458938A

Authority

BE

Belgium

Prior art keywords

cellulose

sodium hydroxide

parts

water

solution

Prior art date

Links

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• HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 117
• 235000011121 sodium hydroxide Nutrition 0.000 claims description 39
• 229920002678 cellulose Polymers 0.000 claims description 34
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
• 238000006266 etherification reaction Methods 0.000 claims description 14
• 229920000609 methyl cellulose Polymers 0.000 claims description 14
• 235000010981 methylcellulose Nutrition 0.000 claims description 14
• 239000000463 material Substances 0.000 claims description 8
• 229920003086 cellulose ether Polymers 0.000 claims description 6
• 238000006243 chemical reaction Methods 0.000 claims description 5
• 239000007864 aqueous solution Substances 0.000 claims description 4
• 238000010438 heat treatment Methods 0.000 claims description 4
• 239000000314 lubricant Substances 0.000 claims description 4
• 239000000344 soap Substances 0.000 claims description 3
• 230000001264 neutralization Effects 0.000 claims description 2
• 239000001913 cellulose Substances 0.000 description 33
• 239000000243 solution Substances 0.000 description 32
• VAYGXNSJCAHWJZ-UHFFFAOYSA-N Dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 21
• 238000000034 method Methods 0.000 description 16
• 239000001923 methylcellulose Substances 0.000 description 10
• 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 compound 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 9
• 239000000203 mixture Substances 0.000 description 9
• 238000002360 preparation method Methods 0.000 description 8
• 239000003795 chemical substances by application Substances 0.000 description 6
• RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
• KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 6
• 229910052708 sodium Inorganic materials 0.000 description 6
• 239000011734 sodium Substances 0.000 description 6
• 150000002170 ethers Chemical class 0.000 description 5
• 230000011987 methylation Effects 0.000 description 5
• 238000007069 methylation reaction Methods 0.000 description 5
• 229920001131 Pulp (paper) Polymers 0.000 description 4
• 238000007792 addition Methods 0.000 description 4
• 150000002485 inorganic esters Chemical class 0.000 description 4
• 239000011541 reaction mixture Substances 0.000 description 4
• BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 3
• 239000002168 alkylating agent Substances 0.000 description 3
• PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
• 235000011187 glycerol Nutrition 0.000 description 3
• 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
• 238000005057 refrigeration Methods 0.000 description 3
• 239000004753 textile Substances 0.000 description 3
• QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
• LSNNMFCWUKXFEE-UHFFFAOYSA-L Sulphite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
• 239000003513 alkali Substances 0.000 description 2
• 238000009826 distribution Methods 0.000 description 2
• 239000003960 organic solvent Substances 0.000 description 2
• XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
• 229920000742 Cotton Polymers 0.000 description 1
• 230000002378 acidificating Effects 0.000 description 1
• 238000005804 alkylation reaction Methods 0.000 description 1
• UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 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
• 150000001768 cations Chemical class 0.000 description 1
• 239000003518 caustics Substances 0.000 description 1
• 230000015271 coagulation Effects 0.000 description 1
• 238000005345 coagulation Methods 0.000 description 1
• 150000001875 compounds Chemical class 0.000 description 1
• 238000001816 cooling Methods 0.000 description 1
• 239000003085 diluting agent Substances 0.000 description 1
• 238000004090 dissolution Methods 0.000 description 1
• 125000001033 ether group Chemical group 0.000 description 1
• 239000004744 fabric Substances 0.000 description 1
• 239000000835 fiber Substances 0.000 description 1
• 238000011049 filling Methods 0.000 description 1
• 238000005755 formation reaction Methods 0.000 description 1
• 238000007710 freezing Methods 0.000 description 1
• 239000004615 ingredient Substances 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 238000010907 mechanical stirring Methods 0.000 description 1
• -1 methyl cellulose ethers Chemical class 0.000 description 1
• 238000002156 mixing Methods 0.000 description 1
• 230000035515 penetration Effects 0.000 description 1
• 230000035484 reaction time Effects 0.000 description 1
• 230000000284 resting Effects 0.000 description 1
• 239000000126 substance Substances 0.000 description 1
• 238000006467 substitution reaction Methods 0.000 description 1
• 238000005406 washing Methods 0.000 description 1
• 239000002023 wood Substances 0.000 description 1
• 239000011787 zinc oxide Substances 0.000 description 1