DE2055621C3 - Verfahren zur Herstellung von Caprolactam - Google Patents
Verfahren zur Herstellung von CaprolactamInfo
- Publication number
- DE2055621C3 DE2055621C3 DE19702055621 DE2055621A DE2055621C3 DE 2055621 C3 DE2055621 C3 DE 2055621C3 DE 19702055621 DE19702055621 DE 19702055621 DE 2055621 A DE2055621 A DE 2055621A DE 2055621 C3 DE2055621 C3 DE 2055621C3
- Authority
- DE
- Germany
- Prior art keywords
- caprolactam
- column
- lactam
- gas mixture
- water
- 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
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 title claims description 80
- 238000000034 method Methods 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000000203 mixture Substances 0.000 claims description 33
- 239000007789 gas Substances 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 17
- VEZUQRBDRNJBJY-UHFFFAOYSA-N cyclohexanone oxime Chemical compound ON=C1CCCCC1 VEZUQRBDRNJBJY-UHFFFAOYSA-N 0.000 claims description 14
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 6
- 230000008707 rearrangement Effects 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 4
- 239000011949 solid catalyst Substances 0.000 claims description 3
- 150000003951 lactams Chemical class 0.000 description 31
- 239000003054 catalyst Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 229920002292 Nylon 6 Polymers 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 229910052810 boron oxide Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 150000002923 oximes Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000926 separation method Methods 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
- C07D201/04—Preparation of lactams from or via oximes by Beckmann rearrangement
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702055621 DE2055621C3 (de) | 1970-11-12 | 1970-11-12 | Verfahren zur Herstellung von Caprolactam |
| FR7138976A FR2113853B2 (enExample) | 1970-11-12 | 1971-10-29 | |
| LU64199D LU64199A1 (enExample) | 1970-11-12 | 1971-11-03 | |
| NL7115350A NL168221C (nl) | 1970-11-12 | 1971-11-08 | Verbetering van een werkwijze ter bereiding van caprolactam. |
| BE775154A BE775154R (fr) | 1970-11-12 | 1971-11-10 | Preparation du caprolactame |
| IT5398871A IT988038B (it) | 1970-11-12 | 1971-11-10 | Procedimento per la produzione di caprolattame puro |
| GB5245471A GB1359668A (en) | 1970-11-12 | 1971-11-11 | Production of caprolactam |
| JP11043480A JPS5649350A (en) | 1970-11-12 | 1980-08-13 | Manufacture of caprolactam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702055621 DE2055621C3 (de) | 1970-11-12 | 1970-11-12 | Verfahren zur Herstellung von Caprolactam |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2055621A1 DE2055621A1 (de) | 1972-05-18 |
| DE2055621B2 DE2055621B2 (de) | 1980-04-30 |
| DE2055621C3 true DE2055621C3 (de) | 1981-09-10 |
Family
ID=5787876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702055621 Expired DE2055621C3 (de) | 1970-11-12 | 1970-11-12 | Verfahren zur Herstellung von Caprolactam |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5649350A (enExample) |
| BE (1) | BE775154R (enExample) |
| DE (1) | DE2055621C3 (enExample) |
| FR (1) | FR2113853B2 (enExample) |
| GB (1) | GB1359668A (enExample) |
| IT (1) | IT988038B (enExample) |
| LU (1) | LU64199A1 (enExample) |
| NL (1) | NL168221C (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654377B2 (ja) * | 1986-07-31 | 1994-07-20 | 富士写真フイルム株式会社 | ハロゲン化銀カラ−写真感光材料の処理方法 |
| JPH07117734B2 (ja) * | 1986-11-27 | 1995-12-18 | 富士写真フイルム株式会社 | ハロゲン化銀カラ−写真感光材料の処理方法 |
| CN114478385A (zh) * | 2022-02-24 | 2022-05-13 | 江苏扬农化工集团有限公司 | 反应精馏制备己内酰胺的方法 |
-
1970
- 1970-11-12 DE DE19702055621 patent/DE2055621C3/de not_active Expired
-
1971
- 1971-10-29 FR FR7138976A patent/FR2113853B2/fr not_active Expired
- 1971-11-03 LU LU64199D patent/LU64199A1/xx unknown
- 1971-11-08 NL NL7115350A patent/NL168221C/xx active
- 1971-11-10 IT IT5398871A patent/IT988038B/it active
- 1971-11-10 BE BE775154A patent/BE775154R/xx active
- 1971-11-11 GB GB5245471A patent/GB1359668A/en not_active Expired
-
1980
- 1980-08-13 JP JP11043480A patent/JPS5649350A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2113853A2 (enExample) | 1972-06-30 |
| GB1359668A (en) | 1974-07-10 |
| JPS5649350A (en) | 1981-05-02 |
| IT988038B (it) | 1975-04-10 |
| LU64199A1 (enExample) | 1972-05-17 |
| NL7115350A (enExample) | 1972-05-16 |
| JPS5643462B2 (enExample) | 1981-10-13 |
| BE775154R (fr) | 1972-05-10 |
| FR2113853B2 (enExample) | 1975-09-26 |
| NL168221C (nl) | 1982-03-16 |
| DE2055621A1 (de) | 1972-05-18 |
| DE2055621B2 (de) | 1980-04-30 |
| NL168221B (nl) | 1981-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BI | Miscellaneous see part 2 | ||
| C3 | Grant after two publication steps (3rd publication) | ||
| 8330 | Complete disclaimer |