DE303530C - - Google Patents
Info
- Publication number
- DE303530C DE303530C DENDAT303530D DE303530DA DE303530C DE 303530 C DE303530 C DE 303530C DE NDAT303530 D DENDAT303530 D DE NDAT303530D DE 303530D A DE303530D A DE 303530DA DE 303530 C DE303530 C DE 303530C
- Authority
- DE
- Germany
- Prior art keywords
- parts
- until
- heated
- cellulose
- acetone
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical class OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229920002301 cellulose acetate Polymers 0.000 claims description 2
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 24
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 14
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 12
- 229920002678 cellulose Polymers 0.000 description 8
- 239000001913 cellulose Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 229960000583 acetic acid Drugs 0.000 description 7
- 239000012362 glacial acetic acid Substances 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 1
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical class [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 1
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 description 1
- 229940081735 acetylcellulose Drugs 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 239000011592 zinc chloride 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
- C08B3/22—Post-esterification treatments, including purification
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE303530C true DE303530C (enrdf_load_stackoverflow) |
Family
ID=557237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT303530D Active DE303530C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE303530C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT303530D patent/DE303530C/de active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2423272A1 (de) | Extraktion von carbonsaeuren aus verduennten, waessrigen loesungen | |
| DE1142488B (de) | Waessrige Saeureloesung zum Entfernen von Kupfer und Eisenoxyde enthaltenden Verkrustungen auf Oberflaechen von Eisengegenstaenden | |
| DE2532773A1 (de) | Verfahren zur verhinderung der entwicklung von no tief x -daempfen | |
| DE2459099A1 (de) | Verfahren zum trennen und reinigung von platinmetallen | |
| DE303530C (enrdf_load_stackoverflow) | ||
| DE3340055C1 (de) | Verfahren zur Abtrennung und Reinigung der Platingruppenmetalle durch Solventextraktion | |
| DE69102947T2 (de) | Bäder und Verfahren zum chemischen Polieren von Oberflächen aus rostfreiem Stahl. | |
| DE1621577A1 (de) | Verfahren zur selektiven Entfernung von Zinkionen aus stark salzsauren Eisenbeizen | |
| DE204673C (enrdf_load_stackoverflow) | ||
| AT68852B (de) | Verfahren zur Darstellung organischer Säureester der Zellulose. | |
| DE53691C (de) | Verfahren zum Schutze des Holzes gegen Fäulnifs | |
| DE392458C (de) | Verfahren zur Herstellung von Papaverinnitrit | |
| DE102746C (enrdf_load_stackoverflow) | ||
| DE66550C (de) | Verfahren zur Darstellung von Dip-phenetylguanidin, sowie seines Benzoylderivates | |
| DE105240C (enrdf_load_stackoverflow) | ||
| DE170906C (enrdf_load_stackoverflow) | ||
| DE137006C (enrdf_load_stackoverflow) | ||
| DE391071C (de) | Verfahren zur Herstellung von Papaverinnitrit | |
| DE758673C (de) | Verfahren zum Entkaelken von geaescherten Bloessen | |
| DE824696C (de) | Verfahren zur Gewinnung von reinem Iridium | |
| DE1948300C (de) | Verfahren zum Aufschließen von Anodenschlamm aus der Kupferelektrolyse | |
| DE66241C (de) | Verfahren zur Darstellung von m-Amidobenzaldehyd in wässeriger saurer Lösung | |
| DE498280C (de) | Verfahren zur Darstellung von Dithiocarbamaten mit alicyclischen Resten | |
| DE80165C (enrdf_load_stackoverflow) | ||
| DE289162C (enrdf_load_stackoverflow) |