BE518416A - - Google Patents
Info
- Publication number
- BE518416A BE518416A BE518416DA BE518416A BE 518416 A BE518416 A BE 518416A BE 518416D A BE518416D A BE 518416DA BE 518416 A BE518416 A BE 518416A
- Authority
- BE
- Belgium
- Prior art keywords
- lactam
- polyamide
- polyamides
- water vapor
- caprolactam
- Prior art date
Links
- 239000004952 Polyamide Substances 0.000 claims description 23
- 229920002647 polyamide Polymers 0.000 claims description 23
- 150000003951 lactams Chemical class 0.000 claims description 19
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N Caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims description 14
- 239000011528 polyamide (building material) Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 4
- 150000007524 organic acids Chemical class 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims 1
- 235000005985 organic acids Nutrition 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- DVPHDWQFZRBFND-DMHDVGBCSA-N 1-O-[2-[(3aR,5R,6S,6aR)-2,2-dimethyl-6-prop-2-enoyloxy-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-5-yl]-2-[4-[(2S,3R)-1-butan-2-ylsulfanyl-2-(2-chlorophenyl)-4-oxoazetidin-3-yl]oxy-4-oxobutanoyl]oxyethyl] 4-O-[(2S,3R)-1-butan-2-ylsulfanyl-2-(2-chloropheny Chemical group C1([C@H]2[C@H](C(N2SC(C)CC)=O)OC(=O)CCC(=O)OC(COC(=O)CCC(=O)O[C@@H]2[C@@H](N(C2=O)SC(C)CC)C=2C(=CC=CC=2)Cl)[C@@H]2[C@@H]([C@H]3OC(C)(C)O[C@H]3O2)OC(=O)C=C)=CC=CC=C1Cl DVPHDWQFZRBFND-DMHDVGBCSA-N 0.000 description 4
- 235000011007 phosphoric acid Nutrition 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- JOXIMZWYDAKGHI-UHFFFAOYSA-N P-Toluenesulfonic acid Chemical class CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- VZJVWSHVAAUDKD-UHFFFAOYSA-N Potassium permanganate Chemical compound [K+].[O-][Mn](=O)(=O)=O VZJVWSHVAAUDKD-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 230000002349 favourable Effects 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N Adipic acid Natural products OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N Benzenesulfonic acid Chemical class OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- LRQKBLKVPFOOQJ-UHFFFAOYSA-N Norleucine Chemical compound CCCCC(N)C(O)=O LRQKBLKVPFOOQJ-UHFFFAOYSA-N 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-N Peroxydisulfuric acid Chemical compound OS(=O)(=O)OOS(O)(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-N 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 150000001279 adipic acids Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- -1 lactam lactam Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- NPDODHDPVPPRDJ-UHFFFAOYSA-N permanganate Chemical compound [O-][Mn](=O)(=O)=O NPDODHDPVPPRDJ-UHFFFAOYSA-N 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
- C07D201/12—Preparation of lactams by depolymerising polyamides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE518416A true BE518416A (ja) |
Family
ID=154984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE518416D BE518416A (ja) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE518416A (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0522235A1 (en) * | 1991-06-21 | 1993-01-13 | Basf Corporation | Process for the recovery of epsilon-caprolactam from nylon 6 carpet |
| WO1994006763A1 (en) * | 1992-09-11 | 1994-03-31 | Basf Corporation | RECLAIMING ε-CAPROLACTAM FROM NYLON 6 CARPET |
| WO1994008942A1 (en) * | 1992-10-19 | 1994-04-28 | E.I. Du Pont De Nemours And Company | Depolymerization of nylon 6,6 (and optionally) nylon 6 to obtain hexamethylene diamine (and caprolactam) |
-
0
- BE BE518416D patent/BE518416A/fr unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0522235A1 (en) * | 1991-06-21 | 1993-01-13 | Basf Corporation | Process for the recovery of epsilon-caprolactam from nylon 6 carpet |
| WO1994006763A1 (en) * | 1992-09-11 | 1994-03-31 | Basf Corporation | RECLAIMING ε-CAPROLACTAM FROM NYLON 6 CARPET |
| WO1994008942A1 (en) * | 1992-10-19 | 1994-04-28 | E.I. Du Pont De Nemours And Company | Depolymerization of nylon 6,6 (and optionally) nylon 6 to obtain hexamethylene diamine (and caprolactam) |
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