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公开(公告)号：EP0146169B1
公开(公告)日：1987-06-03
申请号：EP84201710.5
申请日：1984-11-26
申请人： ENICHEM S.p.A.
发明人： Bialy, Jan , Penczek, Irena , Kopytowska, Nikuca , Wrzyszcz, Jozef , Cmielowska, Jolanta , Grabowska, Hanna , Kaczmarczyk, Wlodzimierz , Mazur, Kazimierz , Mista, Wlodzimierz
CPC分类号： B01J37/031 , B01J23/26 , B01J23/745 , B01J23/862 , C07C37/16 , C07C39/07
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2.发明公开Process for the production of polyphenylene oxide 失效Verfahren zur Herstellung von Polyphenylenoxiden。
公开(公告)号：EP0146982A1
公开(公告)日：1985-07-03
申请号：EP84201709.7
申请日：1984-11-26
申请人： ENICHEM S.p.A.
IPC分类号： C08G65/44
CPC分类号： C08G65/44
摘要： Process for the production of polyphenylene oxide by means of the oxidative polymerization of 2,6-xylenol, with either oxygen or a gas containing molecular oxygen, in the presence of a catalyst, by continuously operating in a circulation system, and with the precipitation of the polymer in the liquid reaction medium.
摘要翻译： 在催化剂存在下，通过在氧气或含有分子氧的气体中的2,6-二甲苯酚的氧化聚合，通过在循环系统中连续操作，并且沉淀 液体反应介质中的聚合物。
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3.发明公开Compositions of polyphenylene oxide or of mixtures of polyphenylene oxide with a styrene polymer 失效聚苯醚的或与苯乙烯聚合物聚苯醚的混合物的组合物。
公开(公告)号：EP0146168A2
公开(公告)日：1985-06-26
申请号：EP84201708.9
申请日：1984-11-26
申请人： ENICHEM S.p.A.
发明人： Kosinska, Wanda , Grzelak, Dorota , Penczek, Irena , Bialy, Jan
摘要： Thermally stable compositions, also showing high fluidity in the molten state comprise polyphenylene oxide, or a mixture of polyphenylene oxide with a styrene polymer, and a stabilizer system consisting of 2,4-bis-(n-octylthio)-6-(4-hydroxy-3,5-di-tert. butylanilino)-1,3,5-triazine and dilauryl thiopropanoate.
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公开(公告)号：EP0146170A1
公开(公告)日：1985-06-26
申请号：EP84201711.3
申请日：1984-11-26
申请人： ENICHEM S.p.A.
发明人： Bialek, Jerzy , Plesnar, Marek , Werle, Janina , Bialy, Jan
摘要： Process for purifying raw 2,6-xylenol, comprising the following stages, carried out in succession:
- melting of raw 2,6-xylenol;
- slow and uniform cooling of said molten raw 2,6-xylenol until at least from 60% to 100% of its mass is separated as crystal solid;
-gradual heating of said crystal solid, after having separated the possibly remaining liquid fraction, up to a highest temperature value lower by 0,1-5 °C, then the solidification temperature of 2,6-xylenol, in order to causing surface melting on said crystals;
- separation of the thus obtained molten liquid phase and recovery of purified 2,6-xylenol.-
公开(公告)号：EP0146169A1
公开(公告)日：1985-06-26
申请号：EP84201710.5
申请日：1984-11-26
申请人： ENICHEM S.p.A.
发明人： Bialy, Jan , Penczek, Irena , Kopytowska, Nikuca , Wrzyszcz, Jozef , Cmielowska, Jolanta , Grabowska, Hanna , Kaczmarczyk, Wlodzimierz , Mazur, Kazimierz , Mista, Wlodzimierz
CPC分类号： B01J37/031 , B01J23/26 , B01J23/745 , B01J23/862 , C07C37/16 , C07C39/07
摘要： Preparation of alkylation catalysts containing iron and/ or chromium oxide, by means of a process which comprises:
a) precipitating hydrate oxides of iron and/or chromium from an aqueous solution of soluble compounds of said elements;
b) separating the thus obtained precipitate, and washing said precipitate;
c) granulating the washed precipitate, and drying the granules so obtained;
d) calcining said dried granules at high temperature;
in which an organic carboxyl acid salt of iron and/or chromium is added to and homogenized with the washed precipitate from stage b), and/or the dried granules from stage c) are impregnated with an aqueous solution of an organic carboxyl acid salt of iron and/or chromium.
The catalysts obtained by means of the above process are mechanically strong, and highly active in the production process of 2,6-xylenol by means of the alkylation of phenol or o-cresol with methanol.-
公开(公告)号：EP0144106A1
公开(公告)日：1985-06-12
申请号：EP84201712.1
申请日：1984-11-26
申请人： ENICHEM S.p.A.
发明人： Penczek, Irena , Bialy, Jan , Dobkowski, Zbignev
CPC分类号： C08G65/44
摘要： Process for the production of polyphenylenexoxide, in which:
- oxygen, or a gas containing molecular oxygen is fed into a liquid reaction medium, solvent of the 2,6-xylenol and of the catalyst cupric salt complexed with an organic base, but nor solvent or substantially not solvent of the polyphenyleneoxide;
- from time to time samples are collected of the reaction mixture, said samples are treated with a liquid solvent, capable of dissolving polyphenyleneoxide and of stopping the growth of the macromolecules, until a clear and homogeneous solution is obtained;
- the through time of the so obtained solution is measured in a capillary tube viscometer and the value is determined of the viscosity and/of the molecular weight of polyphenyleneoxide by the comparison with standard values; and
- on the basis of the so determined value of the viscosity and or of the polyphenyleneoxide molecular weight interventions are effected on the oxidative polymerizing reaction of 2,6-xylenol.摘要翻译： 生产聚苯醚的方法，其中： - 将氧气或含分子氧的气体加入液体反应介质中，将2,6-二甲苯酚和催化剂铜盐的溶剂与有机碱络合，但也不溶剂 或基本上不是聚苯醚的溶剂; - 不时地收集反应混合物的样品，所述样品用液体溶剂处理，所述液体溶剂能够溶解聚苯醚并停止大分子的生长，直至获得澄清且均匀的溶液; - 在毛细管粘度计中测量如此获得的溶液的通过时间，并通过与标准值的比较确定聚苯醚的粘度和/或分子量的值; 和 - 基于如此确定的粘度值和/或聚苯醚分子量介入对2,6-二甲苯酚的氧化聚合反应进行干预。
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