PL134611B1 - Method of isolating from extracted product a solvent used in the cprolactam extraction process - Google Patents
Method of isolating from extracted product a solvent used in the cprolactam extraction process Download PDFInfo
- Publication number
- PL134611B1 PL134611B1 PL22927381A PL22927381A PL134611B1 PL 134611 B1 PL134611 B1 PL 134611B1 PL 22927381 A PL22927381 A PL 22927381A PL 22927381 A PL22927381 A PL 22927381A PL 134611 B1 PL134611 B1 PL 134611B1
- Authority
- PL
- Poland
- Prior art keywords
- solvent
- water
- distillation
- extract
- heteroazeotropic
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 50
- 239000002904 solvent Substances 0.000 title claims description 41
- 238000000605 extraction Methods 0.000 title description 11
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims description 50
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000004821 distillation Methods 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims 1
- 239000012895 dilution Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 8
- 150000003951 lactams Chemical class 0.000 description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 238000000746 purification Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 3
- 235000011130 ammonium sulphate Nutrition 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- 239000001166 ammonium sulphate Substances 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- VEZUQRBDRNJBJY-UHFFFAOYSA-N cyclohexanone oxime Chemical compound ON=C1CCCCC1 VEZUQRBDRNJBJY-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 241001214176 Capros Species 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Landscapes
- Pyrrole Compounds (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL22927381A PL134611B1 (en) | 1981-01-19 | 1981-01-19 | Method of isolating from extracted product a solvent used in the cprolactam extraction process |
| CS35182A CS235528B2 (cs) | 1981-01-19 | 1982-01-18 | Způsob vypuzovánl organického rozpouštědla z extraktu získaného extrakcí kaprolaktamu |
| YU11682A YU11682A (en) | 1981-01-19 | 1982-01-18 | Process for the elimination of the solvent from the extract in the extraction of caprolactame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL22927381A PL134611B1 (en) | 1981-01-19 | 1981-01-19 | Method of isolating from extracted product a solvent used in the cprolactam extraction process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL229273A1 PL229273A1 (cs) | 1982-08-02 |
| PL134611B1 true PL134611B1 (en) | 1985-08-31 |
Family
ID=20007044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL22927381A PL134611B1 (en) | 1981-01-19 | 1981-01-19 | Method of isolating from extracted product a solvent used in the cprolactam extraction process |
Country Status (3)
| Country | Link |
|---|---|
| CS (1) | CS235528B2 (cs) |
| PL (1) | PL134611B1 (cs) |
| YU (1) | YU11682A (cs) |
-
1981
- 1981-01-19 PL PL22927381A patent/PL134611B1/pl unknown
-
1982
- 1982-01-18 CS CS35182A patent/CS235528B2/cs unknown
- 1982-01-18 YU YU11682A patent/YU11682A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL229273A1 (cs) | 1982-08-02 |
| CS235528B2 (cs) | 1985-05-15 |
| YU11682A (en) | 1986-02-28 |
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