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1. 发明授权

US5698642A Process and apparatus for the gas-phase polymerization of .alpha.-olefins 失效
标题翻译： α-烯烃气相聚合的方法和装置
公开(公告)号：US5698642A
公开(公告)日：1997-12-16
申请号：US684411
申请日：1996-07-19
申请人： Gabriele Govoni , Roberto Rinaldi , Massimo Covezzi , Paolo Galli
发明人： Gabriele Govoni , Roberto Rinaldi , Massimo Covezzi , Paolo Galli
IPC分类号： B01J8/18 , B01J8/38 , B01J19/24 , C08F2/00 , C08F2/34 , C08F10/00 , C08F110/06 , C08F210/16
CPC分类号： C08F10/00 , B01J19/2435 , B01J8/1863 , B01J8/388 , C08F110/06 , C08F210/16 , Y10S526/901
摘要： Process for gas-phase polymerization carried out in two interconnected polymerization zones, to which one or more .alpha.-olefins CH.sub.2 .dbd.CHR are fed in the presence of catalyst under reaction conditions and from which the polymer product is discharged. The process is characterized in that the growing polymer flows through a first polymerization zone under fast fluidization conditions, leaves said first zone and enters a second polymerization zone through which it flows in a densified form under the action of gravity, leaves said second zone and is reintroduced into the first polymerization zone, thus establishing a circulation of polymer around the two polymerization zones. The novel process allows olefins to be polymerized in the gas phase with high productivity per unit volume of the reactor without incurring the problems of the fluidized-bed technologies of the known state of the art.
摘要翻译：在两个相互连接的聚合区中进行气相聚合的方法，在催化剂存在下，在反应条件下将一种或多种α-烯烃CH 2 = CHR加入其中，聚合物产物从其中排出。该方法的特征在于，生长的聚合物在快速流化条件下流过第一聚合区，离开所述第一区并进入第二聚合区，通过该第二聚合区，其在重力作用下以致密化形式流动，离开所述第二区，并且是重新引入第一聚合区，从而建立聚合物周围两个聚合区的循环。该新方法允许烯烃在气相中以每单位体积的反应器的高生产率聚合，而不会引起现有技术的流化床技术的问题。

2. 发明授权

US06228956B1 Process for the gas-phase polymerization of olefins 失效
标题翻译：烯烃气相聚合方法
公开(公告)号：US06228956B1
公开(公告)日：2001-05-08
申请号：US08476063
申请日：1995-06-07
申请人： Massimo Covezzi , Paolo Galli , Gabriele Govoni , Roberto Rinaldi
发明人： Massimo Covezzi , Paolo Galli , Gabriele Govoni , Roberto Rinaldi
IPC分类号： C08F444
CPC分类号： C08F10/00 , C08F210/16 , C08F4/6492 , C08F2/001
摘要： Process for the gas-phase polymerization of olefins of the formula CH2═CHR where R is hydrogen or an alkyl or aryl radical with 1 to 8 carbon atoms carried out in one or more reactors having a fluidized or mechanically agitated bed, using a catalyst obtained by reaction of a titanium halide or haloalcoholate and optionally an electron-donor compound supported on an active Mg-dihalide with an Al-trialkyl compound and optionally an electron-donor compound, comprising the steps of: a) contacting the catalyst components in the absence of polymerizable olefin or optionally in the presence of said olefin in an amount to from up to 3 g per g of solid catalyst component; b) prepolymerizing propylene or mixtures of propylene with ethylene or an alpha-olefin to form a propylene polymer having an insolubility in xylene of at least 60% by weight, in an amount of from 5 g of polymer per g of solid catalyst component to 10% by weight of the final catalyst yield; and c) polymerizing one or more CH2═CHR olefins in the gas phase in the presence of the prepolymer-catalyst system obtained in b), while maintaining in the gas phase an alkane in a molar concentration with respect to the total gases of from 20 to 90%.
摘要翻译：式CH 2 = CHR的烯烃的气相聚合方法，其中R是氢或具有1至8个碳原子的烷基或芳基，在具有流化床或机械搅拌床的一个或多个反应器中进行，使用获得的催化剂通过卤化钛或卤代醇化物和任选的负载在活性二卤化镁上的电子给体化合物与Al-三烷基化合物和任选的电子给体化合物的反应，包括以下步骤：a）在不存在的情况下使催化剂组分接触的可聚合烯烃或任选地在所述烯烃存在下的量为每克固体催化剂组分高达3克; b）将丙烯或丙烯与乙烯或α-烯烃的混合物预聚合以形成具有不溶性的丙烯聚合物在二甲苯中至少60重量％，每克固体催化剂组分为5克聚合物至最终催化剂产率的10重量％; 在气相中，在b）中得到的预聚物 - 催化剂体系存在下，在气相中聚合一种或多种CH 2 = CHR烯烃，同时在气相中保持相对于总气体的摩尔浓度为20〜 90％。

3. 发明授权

US5733987A Process for the gas-phase polymerization of olefins 失效
标题翻译：烯烃气相聚合方法
公开(公告)号：US5733987A
公开(公告)日：1998-03-31
申请号：US30654
申请日：1993-03-12
申请人： Massimo Covezzi , Paolo Galli , Gabriele Govoni , Roberto Rinaldi
发明人： Massimo Covezzi , Paolo Galli , Gabriele Govoni , Roberto Rinaldi
IPC分类号： C08F2/34 , C08F4/60 , C08F4/642 , C08F4/654 , C08F10/00 , C08F10/02
CPC分类号： C08F10/02 , Y10S526/901
摘要： Process for the gas-phase polymerization of ethylene and ethylene mixtures with .alpha.-olefins CH.sub.2 .dbd.CHR in the presence of a high activity catalyst comprising a titanium compound containing at least one Ti-halogen bond, supported on magnesium dichloride in active form said process comprising the steps of: (a) contacting the catalyst component; (b) prepolymerizing ethylene or ethylene mixtures with .alpha.-olefins in order to produce a polymer amount of from approximately 5 g per g of solid component, up to an amount corresponding to about 10% of the final catalyst yield; (c) polymerizing ethylene or ethylene mixtures with .alpha.-olefins in the gas-phase, in the presence of the prepolymer-catalyst system obtained in (b), while maintaining in the gas phase a molar concentration concentration of the alkane comprised between 20 and 90% with respect to the total gases.
摘要翻译：在含活性形式负载在二氯化镁上的含有至少一个Ti-卤键的钛化合物的高活性催化剂存在下，用α-烯烃CH 2 = CHR气相聚合乙烯和乙烯混合物的方法，所述方法包括步骤：（a）使催化剂组分接触; （b）将乙烯或乙烯混合物与α-烯烃预聚合，以产生约5g / g固体组分的聚合物量，至多相当于最终催化剂产率的约10％的量; （c）在（b）中获得的预聚物 - 催化剂体系的存在下，在气相中与α-烯烃聚合乙烯或乙烯混合物，同时在气相中保持烷烃的摩尔浓度浓度在20和相对于总气体为90％。

4. 发明授权

US06413477B1 Process and apparatus for the gas-phase polymerization of &agr;-olefins 失效
标题翻译： α-烯烃气相聚合的方法和装置
公开(公告)号：US06413477B1
公开(公告)日：2002-07-02
申请号：US08943748
申请日：1997-10-03
申请人： Gabriele Govoni , Roberto Rinaldi , Massimo Covezzi , Paolo Galli
发明人： Gabriele Govoni , Roberto Rinaldi , Massimo Covezzi , Paolo Galli
IPC分类号： B01J808
CPC分类号： C08F10/00 , B01J8/1863 , B01J8/388 , B01J19/2435 , C08F110/06 , C08F210/16 , Y10S526/901 , C08F2/001 , C08F2/34 , C08F2500/18 , C08F210/14 , C08F2500/12 , C08F2500/08
摘要： Process for gas-phase polymerization carried out in two interconnected polymerization zones, to which one or more &agr;-olefins CH2═CHR are fed in the presence of catalyst under reaction conditions and from which the polymer product is discharged. The process is characterized in that the growing polymer flows through a first polymerization zone under fast fluidization conditions, leaves said first zone and enters a second polymerization zone through which it flows in a densified form under the action of gravity, leaves said second zone and is reintroduced into the first polymerization zone, thus establishing a circulation of polymer around the two polymerization zones. The novel process allows olefins to be polymerized in the gas phase with high productivity per unit volume of the reactor without incurring the problems of the fluidized-bed technologies of the known state of the art.
摘要翻译：在两个相互连接的聚合区中进行气相聚合的方法，一个或多个α-烯烃CH 2 = CHR在催化剂存在下在反应条件下进料，聚合物产物从其中排出。该方法的特征在于，生长的聚合物在快速流化条件下流过第一聚合区，离开所述第一区并进入第二聚合区，通过该第二聚合区，其在重力作用下以致密化形式流动，离开所述第二区，并且是重新引入第一聚合区，从而建立聚合物周围两个聚合区的循环。该新方法允许烯烃在气相中以每单位体积的反应器的高生产率聚合，而不会引起现有技术的流化床技术的问题。

5. 发明授权

US5728353A Process and apparatus for the gas-phase polymerization of olefins 失效
标题翻译：烯烃气相聚合的方法和装置
公开(公告)号：US5728353A
公开(公告)日：1998-03-17
申请号：US711133
申请日：1996-09-09
申请人： Gabriele Govoni , Roberto Rinaldi , Massimo Covezzi
发明人： Gabriele Govoni , Roberto Rinaldi , Massimo Covezzi
IPC分类号： B01J8/24 , B01J8/08 , B01J8/26 , C08F2/00 , C08F2/14 , C08F2/34 , C08F2/38 , C08F4/60 , C08F4/654 , C08F10/00 , C08F10/02 , F27B15/08
CPC分类号： C08F10/00 , B01J8/26 , Y10S526/904
摘要： Gas-phase process for the preparation of polymers and copolymers of olefins CH.sub.2 .dbd.CHR, carried out in at least 2 fluidized or mechanically agitated bed gas-phase reactors operating under different reaction conditions so as to obtain different polymers in the different reactors; the process is characterized in that the polymer is at least partially recycled among the different reactors by using ratios of the flow rate of circulation among the different reactors to the discharge flow rate comprised between 2 and 6.
摘要翻译：用于制备烯烃CH2 = CHR的聚合物和共聚物的气相方法，在不同反应条件下运行的至少2个流化床或机械搅拌床气相反应器中进行，以便在不同反应器中获得不同的聚合物; 该方法的特征在于，通过使用不同反应器之间的循环流量与包含在2和6之间的排出流速的比率，聚合物在不同的反应器中至少部分地再循环。

6. 发明授权

US4332933A Process for treating olefinic polymers with steam 失效
标题翻译：用蒸汽处理烯烃聚合物的方法
公开(公告)号：US4332933A
公开(公告)日：1982-06-01
申请号：US165017
申请日：1980-07-01
申请人： Giovanni Di Drusco , Roberto Rinaldi , Gabriele Govoni
发明人： Giovanni Di Drusco , Roberto Rinaldi , Gabriele Govoni
IPC分类号： F26B3/06 , C08F6/02 , F26B3/16 , C08F6/00
CPC分类号： C08F6/02
摘要： The halogen and organic substances content of the catalyst residues in alpha-olefin crystalline (co)-polymers prepared with catalysts obtained by reacting:(a) a metallorganic Al compound with(b) a Ti compound supported on a Mg halide, in which an electron-donor is combined with the Ti compound and/or the Mg compound and optionally with (a),are reduced by passing a stream of superheated steam (optionally mixed with other gaseous fluids) over the polymer in powder form at a temperature of 105.degree.-140.degree. C. and under a pressure of 0.1-10 kg/cm.sup.2 gauge, the steam/polymer ratio being comprised between 0.10 and 1 by weight.
摘要翻译：通过使（a）金属有机Al化合物与（b）负载在卤化镁上的Ti化合物反应获得的催化剂制备的α-烯烃结晶（共）聚合物中的催化剂残余物的卤素和有机物质含量，其中电子给体与Ti化合物和/或Mg化合物任选地与（a）组合，通过使过热蒸汽（任选地与其它气态流体混合）在粉末形式的聚合物上在105℃的温度下被还原在-1.0〜10kg / cm2的压力下，蒸汽/聚合物的比例在0.10-1重量份之间。

7. 发明授权

US5610244A Process for the gas phase polymerization of alpha-olefins 失效
标题翻译： α-烯烃气相聚合方法
公开(公告)号：US5610244A
公开(公告)日：1997-03-11
申请号：US537708
申请日：1995-12-08
申请人： Gabriele Govoni , Roberto Rinaldi , Giuseppe Penzo
发明人： Gabriele Govoni , Roberto Rinaldi , Giuseppe Penzo
IPC分类号： B01J8/24 , B01J8/00 , B01J8/26 , C08F2/34 , C08F10/00 , C08F210/02
CPC分类号： C08F10/00 , B01J8/0015 , B01J8/26 , Y10S526/901
摘要： A process for polymerizing olefins using a fluidized bed, in which the monomer entry point is located at a point above the bed height. A pre-polymerization step can be conducted using a Z/N catalyst along with an alkane diluent, and resultant liquid phase is introduced into the fluidized bed above the bed height. The process may use several reactors in series arrangement.
摘要翻译： PCT No.PCT / EP95 / 00544 Sec。 371 1995年12月8日第 102（e）日期1995年12月8日PCT提交1995年2月15日PCT公布。出版物WO95 / 22565 日期1995年8月24日使用流化床聚合烯烃的方法，其中单体入口点位于床高度上方。可以使用Z / N催化剂和烷烃稀释剂进行预聚合步骤，并将所得液相引入床高度上方的流化床。该方法可以使用几个串联的反应器。

8. 发明授权

US4316009A Process for the purification of polycarbonate solutions 失效
标题翻译：聚碳酸酯溶液净化工艺
公开(公告)号：US4316009A
公开(公告)日：1982-02-16
申请号：US117787
申请日：1980-02-01
申请人： Roberto Rinaldi , Gabriele Govoni , Francesco Visani
发明人： Roberto Rinaldi , Gabriele Govoni , Francesco Visani
IPC分类号： C08G63/00 , C08G64/40 , C08J3/16
CPC分类号： C08G64/406
摘要： Organic-solvent solutions of polycarbonates containing impurities, e.g., sodium chloride and sodium carbonate formed during the preparation of the polycarbonates, and/or catalysts, are purified by sending aqueous emulsions of polycarbonates in water-immiscible organic solvents, in particular the aqueous emulsions coming from the various purification phases of the organic polycarbonate solutions obtained in the synthesis, through a layer of fibers in which the dispersed droplets of the emulsion coalesce, with the formation of two layers each consisting essentially of one of the two separate phases of the emulsion.
摘要翻译：含有杂质的聚碳酸酯的有机溶剂溶液，例如在制备聚碳酸酯期间形成的氯化钠和碳酸钠和/或催化剂，通过将聚碳酸酯的水性乳液送到与水不混溶的有机溶剂中，特别是水乳液来进行纯化通过合成中获得的有机聚碳酸酯溶液的各种净化阶段，通过其中分散的乳液聚集的纤维层，形成两层，每层基本上由乳液的两个分离相中的一个组成。

9. 发明授权

US5696203A Process for producing polyolefin grafted copolymers 失效
标题翻译：聚烯烃接枝共聚物的制备方法
公开(公告)号：US5696203A
公开(公告)日：1997-12-09
申请号：US683999
申请日：1996-07-19
申请人： Albert A. Hummel , Adolfo Brusaferro , Roberto Rinaldi
发明人： Albert A. Hummel , Adolfo Brusaferro , Roberto Rinaldi
IPC分类号： C08F2/00 , B01J8/18 , B01J8/38 , B01J19/24 , C08F2/34 , C08F255/00 , C08G63/91
CPC分类号： C08F10/00 , B01J19/2435 , B01J8/1863 , B01J8/388 , C08F255/00 , C08F110/06
摘要： A gas phase process for producing olefin polymer graft copolymers, including providing a reaction apparatus having first and second reaction zones operatively connected to each other into which particles of an olefin polymer and a free-radical polymerizable monomer are fed while maintaining free-radical polymerization conditions and a substantial non-oxidizing environment in said zones and from which the grafted copolymer product is discharged. An apparatus suitable for practicing this process is also disclosed.
摘要翻译：一种用于制备烯烃聚合物接枝共聚物的气相方法，包括提供具有彼此可操作地连接的第一和第二反应区的反应装置，其中进料一种烯烃聚合物和自由基可聚合单体的颗粒，同时保持自由基聚合条件和所述区域中的基本的非氧化环境，并且从其中排出接枝的共聚物产物。还公开了适用于实施该方法的装置。

10. 发明申请

US20130239955A1 METHOD FOR THE ACID-CATALYZED DEPOLYMERIZATION OF CELLULOSE 审中-公开
标题翻译：纤维素的酸催化分解方法
公开(公告)号：US20130239955A1
公开(公告)日：2013-09-19
申请号：US13989439
申请日：2011-11-22
申请人： Ferdi Schüth , Roberto Rinaldi , Niklas Meine
发明人： Ferdi Schüth , Roberto Rinaldi , Niklas Meine
IPC分类号： C13K13/00
CPC分类号： C13K13/00 , C08B15/02 , C08H8/00 , C13K1/02 , C13K13/007
摘要： A method for the acid-catalyzed depolymerization of cellulose comprises a mechanical treatment of cellulose in the presence of an inorganic and/or organic acid. The catalytic conversion of cellulose into water-soluble products is virtually completely achieved in that celluoligomers, cellubiose, glucose and glycerol are obtained without significant byproduction.
摘要翻译：纤维素的酸催化解聚的方法包括在无机和/或有机酸存在下机械处理纤维素。纤维素向水溶性产物的催化转化实际上是完全实现的，因为没有显着的副产物获得纤维素，纤维素，葡萄糖和甘油。

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