BE337102A - - Google Patents
Info
- Publication number
- BE337102A BE337102A BE337102DA BE337102A BE 337102 A BE337102 A BE 337102A BE 337102D A BE337102D A BE 337102DA BE 337102 A BE337102 A BE 337102A
- Authority
- BE
- Belgium
- Prior art keywords
- acetylation
- esterification
- cellulosic materials
- absence
- vapors
- Prior art date
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 128
- 239000000463 material Substances 0.000 claims description 54
- 229960000583 Acetic Acid Drugs 0.000 claims description 43
- 239000003795 chemical substances by application Substances 0.000 claims description 40
- WFDIJRYMOXRFFG-UHFFFAOYSA-N acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 33
- 238000006640 acetylation reaction Methods 0.000 claims description 30
- 238000005886 esterification reaction Methods 0.000 claims description 28
- 229920002678 cellulose Polymers 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 24
- 239000001913 cellulose Substances 0.000 claims description 22
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 11
- 239000003085 diluting agent Substances 0.000 claims description 10
- 238000007086 side reaction Methods 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 8
- 150000001242 acetic acid derivatives Chemical class 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 4
- 150000001735 carboxylic acids Chemical class 0.000 claims description 3
- 239000012362 glacial acetic acid Substances 0.000 claims description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- 230000000875 corresponding Effects 0.000 description 15
- 239000000203 mixture Substances 0.000 description 14
- 239000000047 product Substances 0.000 description 13
- 239000002253 acid Substances 0.000 description 11
- 235000019253 formic acid Nutrition 0.000 description 11
- 150000007524 organic acids Chemical class 0.000 description 10
- 150000004665 fatty acids Chemical class 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 230000000397 acetylating Effects 0.000 description 7
- 229940093915 Gynecological Organic acids Drugs 0.000 description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
- 235000005985 organic acids Nutrition 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 150000008064 anhydrides Chemical class 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001264 neutralization Effects 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 229920002301 Cellulose acetate Polymers 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000004310 lactic acid Substances 0.000 description 2
- 235000014655 lactic acid Nutrition 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000016936 Dendrocalamus strictus Nutrition 0.000 description 1
- 240000008120 Dendrocalamus strictus Species 0.000 description 1
- 206010016275 Fear Diseases 0.000 description 1
- -1 acetic acid Chemical class 0.000 description 1
- 230000002378 acidificating Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- HEDRZPFGACZZDS-UHFFFAOYSA-N chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000012084 conversion product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged Effects 0.000 description 1
- 230000001737 promoting Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000003638 reducing agent Substances 0.000 description 1
- 230000000717 retained Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 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
- C08B3/06—Cellulose acetate, e.g. mono-acetate, di-acetate or tri-acetate
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)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE337102A true BE337102A (US06650917-20031118-M00005.png) |
Family
ID=15275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE337102D BE337102A (US06650917-20031118-M00005.png) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE337102A (US06650917-20031118-M00005.png) |
-
0
- BE BE337102D patent/BE337102A/fr unknown
