JPS6236481Y2 - - Google Patents
Info
- Publication number
- JPS6236481Y2 JPS6236481Y2 JP1981030342U JP3034281U JPS6236481Y2 JP S6236481 Y2 JPS6236481 Y2 JP S6236481Y2 JP 1981030342 U JP1981030342 U JP 1981030342U JP 3034281 U JP3034281 U JP 3034281U JP S6236481 Y2 JPS6236481 Y2 JP S6236481Y2
- Authority
- JP
- Japan
- Prior art keywords
- reboiler
- aqueous solution
- effect
- concentrator
- concentration
- 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.)
- Expired
Links
- 239000007864 aqueous solution Substances 0.000 claims description 25
- 150000003951 lactams Chemical class 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000020 Nitrocellulose Substances 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981030342U JPS6236481Y2 (de) | 1981-03-06 | 1981-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981030342U JPS6236481Y2 (de) | 1981-03-06 | 1981-03-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57145503U JPS57145503U (de) | 1982-09-13 |
| JPS6236481Y2 true JPS6236481Y2 (de) | 1987-09-17 |
Family
ID=29827857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981030342U Expired JPS6236481Y2 (de) | 1981-03-06 | 1981-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6236481Y2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013119539A (ja) * | 2011-12-08 | 2013-06-17 | Unitika Ltd | 回収ε−カプロラクタムの精製法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50148548A (de) * | 1974-05-20 | 1975-11-28 |
-
1981
- 1981-03-06 JP JP1981030342U patent/JPS6236481Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50148548A (de) * | 1974-05-20 | 1975-11-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57145503U (de) | 1982-09-13 |
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