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1. 发明授权

US3914313A Method for the production of cyclopentamethylene ketene 失效
标题翻译：生产环戊烯酮乙烯酮的方法
公开(公告)号：US3914313A
公开(公告)日：1975-10-21
申请号：US11895171
申请日：1971-02-25
申请人： SNIA VISCOSA
发明人： SIOLI GIANCARLO , GIUFFRE LUIGI , RIGHI FRANCO , MATERA GIANCARLO
IPC分类号： C07D239/42 , B01J31/00 , C07B61/00 , C07C45/00 , C07C45/89 , C07C49/88 , C07C51/00 , C07C61/09 , C07C67/00 , C07D307/89 , C07C45/18
CPC分类号： C07C45/89 , C07C49/88
摘要： A method is disclosed for the preparation of alicyclic ketenes, useful as intermediates in the preparation of lactams. The instant method consists in a heat treatment of an alicyclic acid, or its anhydride, in a matallic reactor exempt from nickel, at high temperatures but under subatmospherical pressures. A catalyst of the type XP(OR)3 wherein X is selected from the group consisting of oxygen, sulphur and selenium and R is an alkyl radical is preferred for accelerating the reactions. The temperatures are in the range from 550* to 750*C and the preferred pressure is under 100 millimeters of mercury. High yields and conversion rates are obtained and the purity of the end product is more than satisfactory. The method can be applied to the preparation of a number of alicyclic ketenes.
摘要翻译：公开了一种制备用作制备内酰胺的中间体的脂环族烯酮的方法。本方法包括在高温下但在低于大气压的压力下，在不含镍的金属反应器中脂环酸或其酸酐的热处理。 XP（OR）3类型的催化剂，其中X选自氧，硫和硒，R是烷基，用于加速反应。温度范围为550℃至750℃，优选的压力为100毫米汞柱。获得高产率和转化率，最终产品的纯度令人满意。该方法可用于制备多种脂环烯酮。

2. 发明授权

US3912721A Method for extracting lactams from acidic reaction mixtures 失效
标题翻译：从酸性反应混合物中提取内酰胺的方法
公开(公告)号：US3912721A
公开(公告)日：1975-10-14
申请号：US37379973
申请日：1973-06-26
申请人： SNIA VISCOSA
发明人： MATTONE ROBERTO , SIOLI GIANCARLO , GIUFFRE LUIGI
IPC分类号： B01D11/04 , C07D201/16
CPC分类号： C07D201/16
摘要： A method is disclosed for recovering lactams from acidic reaction mixtures, the improvement consisting in the fact that the extractant is an alkylsubstituted phenol the alkyl chain of which contains at least three carbon atoms, the alkyl substituent being capable of imparting to the phenol a lipophilic character. Monosubstituted and disubstituted phenols, such as isopropyl phenols, sec. and tert. butyl phenols, sec. and tert. amylphenols, di-sec. amylphenols and di-tert. amylphenols are preferred.
摘要翻译：公开了一种用于从酸性反应混合物中回收内酰胺的方法，其改进在于提取剂是其烷基链含有至少三个碳原子的烷基取代酚，烷基取代基能够赋予苯酚亲油性。单取代和二取代的酚，如异丙基苯酚，和叔丁基。丁基酚，秒和叔丁基。戊基酚，二 - 戊基酚和二叔丁基。戊基酚是优选的。

3. 发明授权

US3904609A Method for the preparation of pure lactam from its primary solutions in an organic solvent 失效
标题翻译：在有机溶剂中从其主要溶液中制备纯色乳液的方法
公开(公告)号：US3904609A
公开(公告)日：1975-09-09
申请号：US38033273
申请日：1973-07-18
申请人： SNIA VISCOSA
发明人： MATTONE ROBERTO , SIOLI GIANCARLO , GIUFFRE LUIGI
IPC分类号： B01D3/00 , B01D9/02 , C07D201/16
CPC分类号： C07D201/16
摘要： A method for the preparation of pure lactam is disclosed wherein a primary solution of the lactam in an organic phenolic solvent is supplemented by a compound miscible with the solution which is compatible with the primary solvent and is a solvent for the primary solvent but not for the lactam and susceptible of giving rise to precipitation of the lactam, the lactam being then separated from the mixture of the primary solvent and the compound which is a solvent for said primary solvent.

4. 发明专利

NO143220C 未知
公开(公告)号：NO143220C
公开(公告)日：1981-01-02
申请号：NO263073
申请日：1973-06-25
申请人： SNIA VISCOSA
发明人： MATTONE ROBERTO , SIOLI GIANCARLO , GIUFFRE LUIGI
IPC分类号： C07D201/16 , B01D11/04
摘要： A method is disclosed for recovering lactams from acidic reaction mixtures, the improvement consisting in the fact that the extractant is an alkylsubstituted phenol the alkyl chain of which contains at least three carbon atoms, the alkyl substituent being capable of imparting to the phenol a lipophilic character. Monosubstituted and disubstituted phenols, such as isopropyl phenols, sec. and tert. butyl phenols, sec. and tert. amylphenols, di-sec. amylphenols and di-tert. amylphenols are preferred.

5. 发明专利

CA967170A METHODS FOR THE PRODUCTION OF ALICYCIC ANHYDRIDES 未知
公开(公告)号：CA967170A
公开(公告)日：1975-05-06
申请号：CA207277
申请日：1974-08-19
申请人： SNIA VISCOSA
发明人： SIOLI GIANCARLO , GIUFFRE LUIGI , RIGHI FRANCO , MATERA GIANCARLO

6. 发明专利

DE2332973A1 未知
公开(公告)号：DE2332973A1
公开(公告)日：1974-01-10
申请号：DE2332973
申请日：1973-06-28
申请人： SNIA VISCOSA
发明人： MATTONE ROBERTO , SIOLI GIANCARLO , GIUFFRE LUIGI
IPC分类号： B01D11/04 , C07D201/16 , C07D41/00
摘要： A method is disclosed for recovering lactams from acidic reaction mixtures, the improvement consisting in the fact that the extractant is an alkylsubstituted phenol the alkyl chain of which contains at least three carbon atoms, the alkyl substituent being capable of imparting to the phenol a lipophilic character. Monosubstituted and disubstituted phenols, such as isopropyl phenols, sec. and tert. butyl phenols, sec. and tert. amylphenols, di-sec. amylphenols and di-tert. amylphenols are preferred.

7. 发明专利

DK138333B 未知
公开(公告)号：DK138333B
公开(公告)日：1978-08-14
申请号：DK540275
申请日：1975-11-28
申请人： SNIA VISCOSA
发明人： GIUFFRE LUIGI , SIOLI GIANCARLO , MATTONE ROBERTO
IPC分类号： C07G99/00 , C07G17/00

8. 发明专利

DK139964B 未知
公开(公告)号：DK139964B
公开(公告)日：1979-05-28
申请号：DK41373
申请日：1973-01-25
申请人： SNIA VISCOSA
发明人： GIUFFRE LUIGI , SIOLI GIANCARLO , MATTONE ROBERTO
IPC分类号： C07D201/02 , C07C67/00 , C07C201/00 , C07C207/00 , C07C239/00 , C07C251/46 , C07D201/04 , C07D201/10 , C07D205/08 , C07D207/263 , C07D223/02 , C07D223/10
摘要： A method for the preparation of omega lactams is disclosed, more particularly epsilon caprolactam or a precursor thereof (such as cyclohexanone oxime), using as the starting material a cyclomethylene ketene, with the simultaneous formation of side products such as cyclohexanecarboxylic acid, wherein an adduct is preliminarly formed between cyclomethylene ketene and sulphur dioxide. The adduct is then reacted with a nitrosating agent so as to obtain, under the appropriate reaction conditions, the expected lactam, more specifically epsilon caprolactam.

9. 发明专利

CA1018524A METHOD FOR EXTRACTING LACTAMS FROM ACIDIC REACTION MIXTURES 未知
公开(公告)号：CA1018524A
公开(公告)日：1977-10-04
申请号：CA175181
申请日：1973-06-28
申请人： SNIA VISCOSA
发明人： MATTONE ROBERTO , SIOLI GIANCARLO , GIUFFRE LUIGI
IPC分类号： B01D11/04 , C07D201/16
摘要： A method is disclosed for recovering lactams from acidic reaction mixtures, the improvement consisting in the fact that the extractant is an alkylsubstituted phenol the alkyl chain of which contains at least three carbon atoms, the alkyl substituent being capable of imparting to the phenol a lipophilic character. Monosubstituted and disubstituted phenols, such as isopropyl phenols, sec. and tert. butyl phenols, sec. and tert. amylphenols, di-sec. amylphenols and di-tert. amylphenols are preferred.

10. 发明专利

DE2332982A1 未知
公开(公告)号：DE2332982A1
公开(公告)日：1974-01-10
申请号：DE2332982
申请日：1973-06-28
申请人： SNIA VISCOSA
发明人： MATTONE ROBERTO , SIOLI GIANCARLO , GIUFFRE LUIGI
IPC分类号： B01D3/00 , B01D9/02 , C07D201/16 , C07D41/00
摘要： 1430949 Lactams SNIA VISCOSA SOC NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA SpA 27 June 1973 [28 June 1972] 30468/73 Heading C2C A lactam, e.g. caprolactam, is removed from solution in an organic first solvent by adding to the solution a second solvent which is miscible with the first solvent but which is not a solvent for the lactam so that the lactam is displaced from solution in the first solvent. Exemplified as the first solvent is a phenol containing at least one alkyl substituent which contains 3 or more carbon atoms and has a solubility in water of less than 0À5 g. per 100 g. of water at 25‹ C. and in sulphuric acid solution containing 50 g. of sulphuric acid per 50 g. of water has a solubility of less than 0À2 g. per 100 g. of acid solution at 25‹ C, the substituent groups of the phenol not hindering the activity of the OH group of the phenol. The second solvent may be an aliphatic, aromatic or chlorinated hydrocarbon. A third solvent, e.g. water which is immiscible with both the first and second solvents but which is a solvent for the lactam may also be added to the solution so that the displaced lactam forms a solution in the third solvent.

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