DE236537C - - Google Patents
Info
- Publication number
- DE236537C DE236537C DENDAT236537D DE236537DA DE236537C DE 236537 C DE236537 C DE 236537C DE NDAT236537 D DENDAT236537 D DE NDAT236537D DE 236537D A DE236537D A DE 236537DA DE 236537 C DE236537 C DE 236537C
- Authority
- DE
- Germany
- Prior art keywords
- cellulose
- ammonia
- solutions
- acid
- solvent
- 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
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- MUBZPKHOEPUJKR-UHFFFAOYSA-N oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- 229920002678 cellulose Polymers 0.000 claims description 8
- 239000001913 cellulose Substances 0.000 claims description 8
- 150000007524 organic acids Chemical class 0.000 claims description 7
- 235000005985 organic acids Nutrition 0.000 claims description 6
- 150000001879 copper Chemical class 0.000 claims description 5
- FEWJPZIEWOKRBE-XIXRPRMCSA-N Mesotartaric acid Chemical compound OC(=O)[C@@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-XIXRPRMCSA-N 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 235000002906 tartaric acid Nutrition 0.000 claims description 4
- 239000011975 tartaric acid Substances 0.000 claims description 4
- 229960001367 tartaric acid Drugs 0.000 claims description 4
- DBNPDRYVYQWGFW-UHFFFAOYSA-N N.[Cu]=O Chemical compound N.[Cu]=O DBNPDRYVYQWGFW-UHFFFAOYSA-N 0.000 claims description 3
- 235000015165 citric acid Nutrition 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- 239000002904 solvent Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 5
- 238000009987 spinning Methods 0.000 description 5
- 239000000654 additive Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 241000131971 Bradyrhizobiaceae Species 0.000 description 1
- 239000005750 Copper hydroxide Substances 0.000 description 1
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper(II) hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910001956 copper hydroxide Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 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
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
- C08B1/006—Preparation of cuprammonium cellulose solutions
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)
- Compositions Of Macromolecular Compounds (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE236537C true DE236537C (US08197722-20120612-C00042.png) |
Family
ID=496217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT236537D Active DE236537C (US08197722-20120612-C00042.png) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE236537C (US08197722-20120612-C00042.png) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE966600C (de) * | 1946-08-08 | 1957-08-22 | Beaunit Mills Inc | Verfahren zur gleichzeitigen Rueckgewinnung von Kupfer- und Weinsaeuresalzen aus Abfallfluessigkeiten, die sich bei der Erzeugung von Celluloseprodukten aus Kupferoxydammoniakcelluloseloesungen ansammeln |
| US6815473B2 (en) | 2000-05-26 | 2004-11-09 | Michelin Recherche Et Technique S.A. | Rubber composition usable as a tire tread |
-
0
- DE DENDAT236537D patent/DE236537C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE966600C (de) * | 1946-08-08 | 1957-08-22 | Beaunit Mills Inc | Verfahren zur gleichzeitigen Rueckgewinnung von Kupfer- und Weinsaeuresalzen aus Abfallfluessigkeiten, die sich bei der Erzeugung von Celluloseprodukten aus Kupferoxydammoniakcelluloseloesungen ansammeln |
| US6815473B2 (en) | 2000-05-26 | 2004-11-09 | Michelin Recherche Et Technique S.A. | Rubber composition usable as a tire tread |
