公开(公告)号：US06596822B1

公开(公告)日：2003-07-22

申请号：US10089749

申请日：2002-04-02

申请人： Michael Witt ,  Andreas Deckers ,  Farid Rizk ,  Kaspar Evertz

发明人： Michael Witt ,  Andreas Deckers ,  Farid Rizk ,  Kaspar Evertz

IPC分类号： C08F234

CPC分类号： C08F6/005 ,  B01J8/007 ,  B01J8/10 ,  B01J8/1872 ,  C08F210/16 ,  Y10S526/901 ,  C08L23/00 ,  C08F2/34 ,  C08F2/01 ,  C08F210/14 ,  C08F2500/18 ,  C08F2500/24

摘要： The invention relates to a method and an apparatus for the polymerization of gaseous olefins, in particular of ethylene and at least one &agr;-olefin, in the gas phase in a stirred or fluidized, catalyst-containing polymerization zone (2) and at least one decompression zone (6, 10) downstream of the polymerization zone (2). The mixture of solid (co)polymer and unreacted monomers leaving the polymerization zone (2) flows through a settling zone, in particular in the form of a settling leg (14), before the decompression zone.

摘要翻译： 本发明涉及用于在搅拌或流化的含催化剂的聚合区（2）中的气相中气态烯烃，特别是乙烯和至少一种α-烯烃的聚合的方法和装置，以及至少一种 在聚合区（2）下游的减压区（6,10）。 离开聚合区（2）的固体（共）聚合物和未反应单体的混合物在减压区之前流过沉降区，特别是沉降腿（14）的形式。

公开(公告)号：US5071950A

公开(公告)日：1991-12-10

申请号：US587563

申请日：1990-09-24

申请人： Klaus Borho ,  Horst Bullack ,  Alfred F. Hauss ,  Peter Hennenberger ,  Klaus Hilligardt ,  Benno Knauer ,  Farid Rizk ,  Heinz Vogt

发明人： Klaus Borho ,  Horst Bullack ,  Alfred F. Hauss ,  Peter Hennenberger ,  Klaus Hilligardt ,  Benno Knauer ,  Farid Rizk ,  Heinz Vogt

IPC分类号： C08F210/02 ,  C08F2/34 ,  C08F6/00 ,  C08F10/00

CPC分类号： C08F6/005 ,  C08F6/006

摘要： Ethylene/.alpha.-olefin copolymers are prepared by catalytic dry-phase copolymerization of the monomers in a stirred or fluidized polymerization zone, transfer of the resulting mixture of solid copolymer and unconverted gaseous monomer into a let-down zone and separation of the mixture, after pressure reduction, into a gaseous phase and a solid phase, by a continuous process in which the solid phase is continuously flushed beforehand with gaseous ethylene and then flushed with a mixture of nitrogen and steam. The ethylene copolymers are very substantially free of residual monomers and odor and flavor substances.

摘要翻译： 乙烯/α-烯烃共聚物通过单体在搅拌或流化的聚合区中的催化干相共聚合制备，将所得到的固体共聚物和未转化的气体单体的混合物转移到下拉区域中，并将混合物分离 通过连续的方法将气相和固相进行减压，其中固相用气态乙烯预先连续冲洗，然后用氮气和蒸汽的混合物冲洗。 乙烯共聚物基本上不含残留的单体和气味和风味物质。

公开(公告)号：US5052123A

公开(公告)日：1991-10-01

申请号：US547304

申请日：1990-07-03

申请人： Klaus J. Tischendorf ,  Manfred Liebscher ,  Farid Rizk ,  Franz Zahradnik

发明人： Klaus J. Tischendorf ,  Manfred Liebscher ,  Farid Rizk ,  Franz Zahradnik

IPC分类号： C08G69/46 ,  B29B13/06 ,  B29K77/00 ,  C08G69/00

CPC分类号： B29B13/065

摘要： Polyamide granules are dried and heated by feeding a suspension of granules in water into a sieve (1), where the bulk of the water is removed, and then into a tower dryer (10), where they are deposited in bed form and then freed of the remaining water while moving in plug flow under the force of gravity with a counter-current inert gas stream at from 70.degree. to 200.degree. C. The tower dryer possesses an inlet at the top (11) and outlet at the bottom (34) for the granules and also feed lines (20, 22, 31) for the inert gas. To achieve a uniform degree of drying of the granules, the inert gas is divided on entry into the tower dryer at a point between the drying zone and the heating zone into a stream which flows radially inward into the bed of granules on the one hand and a stream which flows radially inward and outward on the other. In this way the inert gas is distributed particularly uniformly and the granules are dryable in a very short drying zone down to a water content of 0.0001 kg of water/kg of polymer. The lower, conically tapered area of the tower dryer--bin 30--ensures a uniform rate of descent of the granules and hence a uniform solid-phase condensation with a favorable molecular weight distribution. The tower dryer (10) is followed by a fluidized bed cooler (41) in which the granules are cooled with air to

摘要翻译： 将聚酰胺颗粒干燥并通过将颗粒在水中的悬浮液加入到筛子（1）中，其中大部分水被除去，然后进入塔式干燥器（10），在塔式干燥器（10）中以床形式沉积然后释放 的剩余水，同时在重力作用下用70度到200度的逆流惰性气流在活塞流中移动。塔式干燥器具有顶部（11）和底部出口（34）的入口 ）和用于惰性气体的进料管线（20,22,31）。 为了实现颗粒的均匀干燥程度，惰性气体在干燥区域和加热区域之间的一段入口处分成塔式干燥器，一方面径向向内流入颗粒床， 另一端径向向外流动的气流。 以这种方式，惰性气体分布特别均匀，并且颗粒在非常短的干燥区域中可干燥至0.0001kg水/ kg聚合物的含水量。 塔式干燥器箱30的下锥形锥形区域确保了颗粒均匀的下降速率，因此具有均匀的固相冷凝并具有良好的分子量分布。 塔式干燥器（10）之后是流化床冷却器（41），其中颗粒用空气冷却至<50℃。

公开(公告)号：US4878758A

公开(公告)日：1989-11-07

申请号：US154326

申请日：1988-02-10

申请人： Roland Schafer ,  Farid Rizk

发明人： Roland Schafer ,  Farid Rizk

IPC分类号： B01F13/02

CPC分类号： B01F13/0294

摘要： The instant invention relates to a process for the blending of bulk materials by means of a jet gas blender, whereby the blending porcess is initiated only when full gas pressure is reached and when the valve immediately upstream of the storage tank (3) has been closed. At the end of the set time period "t.sub.1 " the valve (4) leading to the blending container (6) is closed in effect simultaneously and the valve (4.1) leading to the storage tank (3) is reopened, whereby the blended material settles in the blending container (6) without being disturbed by turbulence in this control position and whereby this phase is maintained for a set period of time.Only at the end of that period of time is the line cross-section leading to the filter (8) opened to allow exhaust air to go through, and its passage is thereby adjusted so that the quantity of exhaust air going through the filter remains approximately constant per time unit.When the pressure in the blending container (6) has dropped to the level of the atmospheric pressure the material is discharged via the discharge opening.

摘要翻译： 本发明涉及一种通过喷射式气体混合器共混散装材料的方法，由此仅当达到全部气体压力时和当紧邻储罐（3）上游的阀已经关闭时才启动混合孔 。 在设定时间段“t1”结束时，通向混合容器（6）的阀（4）同时闭合，并且通向储罐（3）的阀（4.1）被重新打开，由此混合材料 在混合容器（6）中不会被该控制位置的湍流扰乱，从而将该相保持一段时间。 只有在该时间段结束时，导致过滤器（8）打开以允许排气通过的管线横截面，并且由此调节其通道，使得通过过滤器的废气的数量保持近似 每个时间单位是常数。 当混合容器（6）中的压力下降到大气压水平时，材料经排出口排出。