DE1203956B - Verfahren zum Reinigen granulierter oder stueckiger Polyamide - Google Patents
Verfahren zum Reinigen granulierter oder stueckiger PolyamideInfo
- Publication number
- DE1203956B DE1203956B DEB70637A DEB0070637A DE1203956B DE 1203956 B DE1203956 B DE 1203956B DE B70637 A DEB70637 A DE B70637A DE B0070637 A DEB0070637 A DE B0070637A DE 1203956 B DE1203956 B DE 1203956B
- Authority
- DE
- Germany
- Prior art keywords
- polyamide
- polyamides
- lumpy
- water
- reducing
- 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.)
- Pending
Links
- 239000004952 Polyamide Substances 0.000 title claims description 19
- 229920002647 polyamide Polymers 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 8
- 238000004140 cleaning Methods 0.000 title claims description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 12
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 7
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- 235000019253 formic acid Nutrition 0.000 claims description 6
- 230000001603 reducing effect Effects 0.000 claims description 6
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- 239000007858 starting material Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 150000007513 acids Chemical class 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 238000007792 addition Methods 0.000 claims 1
- 239000003638 chemical reducing agent Substances 0.000 description 10
- 238000001035 drying Methods 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000004383 yellowing Methods 0.000 description 4
- 229920002292 Nylon 6 Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 2
- AOSFMYBATFLTAQ-UHFFFAOYSA-N 1-amino-3-(benzimidazol-1-yl)propan-2-ol Chemical compound C1=CC=C2N(CC(O)CN)C=NC2=C1 AOSFMYBATFLTAQ-UHFFFAOYSA-N 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 108010055615 Zein Proteins 0.000 description 1
- 229920002494 Zein Polymers 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- VBIXEXWLHSRNKB-UHFFFAOYSA-N ammonium oxalate Chemical compound [NH4+].[NH4+].[O-]C(=O)C([O-])=O VBIXEXWLHSRNKB-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical compound OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- POCUPXSSKQAQRY-UHFFFAOYSA-N hydroxylamine;hydrate Chemical compound O.ON POCUPXSSKQAQRY-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000003951 lactams Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/46—Post-polymerisation treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyamides (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB70637A DE1203956B (de) | 1963-02-06 | 1963-02-06 | Verfahren zum Reinigen granulierter oder stueckiger Polyamide |
| BE643274D BE643274A (en, 2012) | 1963-02-06 | 1964-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB70637A DE1203956B (de) | 1963-02-06 | 1963-02-06 | Verfahren zum Reinigen granulierter oder stueckiger Polyamide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1203956B true DE1203956B (de) | 1965-10-28 |
Family
ID=6976730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB70637A Pending DE1203956B (de) | 1963-02-06 | 1963-02-06 | Verfahren zum Reinigen granulierter oder stueckiger Polyamide |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE643274A (en, 2012) |
| DE (1) | DE1203956B (en, 2012) |
-
1963
- 1963-02-06 DE DEB70637A patent/DE1203956B/de active Pending
-
1964
- 1964-01-31 BE BE643274D patent/BE643274A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE643274A (en, 2012) | 1964-07-31 |
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