DE2222158A1 - Abscheidung von Lactam aus einem konzentrierte Schwefelsaeure bzw. Schwefelsaeure und Schwefeltrioxyd enthaltenden Medium - Google Patents
Abscheidung von Lactam aus einem konzentrierte Schwefelsaeure bzw. Schwefelsaeure und Schwefeltrioxyd enthaltenden MediumInfo
- Publication number
- DE2222158A1 DE2222158A1 DE19722222158 DE2222158A DE2222158A1 DE 2222158 A1 DE2222158 A1 DE 2222158A1 DE 19722222158 DE19722222158 DE 19722222158 DE 2222158 A DE2222158 A DE 2222158A DE 2222158 A1 DE2222158 A1 DE 2222158A1
- Authority
- DE
- Germany
- Prior art keywords
- lactam
- sulfuric acid
- solution
- extraction
- ammonium sulfate
- 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
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims description 59
- 150000003951 lactams Chemical class 0.000 title claims description 44
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title claims description 8
- 238000000926 separation method Methods 0.000 title description 6
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 29
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 29
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 29
- 238000000605 extraction Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 9
- 239000012452 mother liquor Substances 0.000 claims description 9
- LSQBSJGVGHPYAZ-UHFFFAOYSA-N triazanium;hydrogen sulfate;sulfate Chemical compound [NH4+].[NH4+].[NH4+].OS([O-])(=O)=O.[O-]S([O-])(=O)=O LSQBSJGVGHPYAZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 239000001166 ammonium sulphate Substances 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 22
- 239000000203 mixture Substances 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 10
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 8
- 230000008707 rearrangement Effects 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- VEZUQRBDRNJBJY-UHFFFAOYSA-N cyclohexanone oxime Chemical compound ON=C1CCCCC1 VEZUQRBDRNJBJY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012047 saturated solution Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- WWILHZQYNPQALT-UHFFFAOYSA-N 2-methyl-2-morpholin-4-ylpropanal Chemical compound O=CC(C)(C)N1CCOCC1 WWILHZQYNPQALT-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 238000006237 Beckmann rearrangement reaction Methods 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- -1 alicyclic oximes Chemical class 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance 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
- C07D201/16—Separation or purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pyrrole Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7106340A NL7106340A (fr) | 1971-05-07 | 1971-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2222158A1 true DE2222158A1 (de) | 1972-11-16 |
Family
ID=19813108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722222158 Pending DE2222158A1 (de) | 1971-05-07 | 1972-05-05 | Abscheidung von Lactam aus einem konzentrierte Schwefelsaeure bzw. Schwefelsaeure und Schwefeltrioxyd enthaltenden Medium |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE783099A (fr) |
| DE (1) | DE2222158A1 (fr) |
| GB (1) | GB1379283A (fr) |
| NL (1) | NL7106340A (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120903437B (zh) * | 2025-10-09 | 2026-01-20 | 浙江百能科技有限公司 | 硫碘循环制氢中利用硫酸钠辅助硫酸分解的方法及系统 |
-
1971
- 1971-05-07 NL NL7106340A patent/NL7106340A/xx unknown
-
1972
- 1972-05-05 DE DE19722222158 patent/DE2222158A1/de active Pending
- 1972-05-05 GB GB2113672A patent/GB1379283A/en not_active Expired
- 1972-05-05 BE BE783099A patent/BE783099A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE783099A (fr) | 1972-11-06 |
| NL7106340A (fr) | 1972-11-09 |
| GB1379283A (en) | 1975-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2440544C2 (fr) | ||
| DE1493198C3 (de) | Verfahren zur Herstellung eines aliphatischen oder cycloaliphatischen Ketoxims | |
| DE1620468A1 (de) | Ausscheidung von Lactamen aus einem stark schwefelsaurem Medium | |
| DE2222148A1 (de) | Verfahren zur Abscheidung von Lactamen | |
| DE2222216A1 (de) | Verbessertes Verfahren zu der Herstellung und Gewinnung von Lactamen | |
| DE1956874B2 (de) | Kreislaufverfahren zur Herstellung von Ket-Oximen | |
| DE2222158A1 (de) | Abscheidung von Lactam aus einem konzentrierte Schwefelsaeure bzw. Schwefelsaeure und Schwefeltrioxyd enthaltenden Medium | |
| DE2338784A1 (de) | Verfahren zur abscheidung von lactamen | |
| DE2745783C3 (de) | Herstellung von Nitroguanidin aus Guanidinnitrat unter Einwirkung von wässriger Schwefelsäure | |
| DE2046198A1 (de) | Verbessertes Verfahren zur konti nuierhchen Herstellung einer Hydroxyl ammoniumsalzlösung in Wasser | |
| DE1952480A1 (de) | Verfahren zur Gewinnung von Ammoniumsulfat aus einer ammoniumsulfat- und methioninhaltigen waesserigen Loesung | |
| DE2046256A1 (de) | Kontinuierliche Herstellung von Cyclohexanonoxim | |
| DE2260014A1 (de) | Verfahren zu der abscheidung von lactam | |
| DE2223643C3 (de) | Verfahren zu der Umlagerung alicyclischer Ketoxime in die entsprechenden Lactame | |
| DE2129658A1 (de) | Verfahren zur Herstellung von Oximen | |
| CH640200A5 (en) | Process for producing magnesium oxide from an aqueous magnesium sulphate solution | |
| DE1518358A1 (de) | Verfahren zur Ausscheidung von Methionin oder eines Methioninsalzes aus einer methioninhaltigen waessrigen Ammoniumsulfatloesung | |
| DE1288590B (de) | Verfahren zur Herstellung von Harnstoff mit niedrigem Biuretgehalt | |
| DE2534075A1 (de) | Verfahren zur gewinnung von epsilon- caprolactam aus einem epsilon-caprolactam-schwefelsaeure-reaktionsgemisch | |
| DE2408864C3 (de) | Verfahren zur gleichzeitigen Herstellung von Cyclohexanonoxim und konzentrierter Ammoniumsulfatlösung | |
| AT204054B (de) | Verfahren zur Herstellung eines Harnstoff und Ammonsulfat enthaltenden Düngemittels | |
| DE503898C (de) | Verfahren zur Darstellung von Doppelsalzen des Ammoniumsulfats mit den Sulfaten derAlkalien | |
| DE2129657A1 (de) | Abscheidung von Lactamen aus einem,konzentrierte Schwefelsaeure bzw.Schwefeltrioxyd enthaltenden Medium | |
| DE543555C (de) | Verfahren zur Darstellung von Thioharnstoff | |
| DE574845C (de) | Verfahren zur Herstellung von Mischduengern aus sulfatischen Salzmineralien |