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公开(公告)号：US06332958B1
公开(公告)日：2001-12-25
申请号：US09331762
申请日：1999-08-19
申请人： Etsuro Matsuda , Yuichi Ito , Toshinobu Kurazono
发明人： Etsuro Matsuda , Yuichi Ito , Toshinobu Kurazono
IPC分类号： B01D338
CPC分类号： C08F6/003 , Y10S159/10 , Y10S203/09 , C08L27/06
摘要： An apparatus and a method for removing residual monomers from a slurry containing a polyvinyl chloride. The apparatus has a cylindrical tower with plural perforated plates provided in a vertical direction in the tower, plural chambers formed on the perforated plates serving as their bottom surface, slurry introducing portions provided at two or more of the chambers, flow-down sections provided between the perforated plates to allow the slurry to sequentially flow down from the perforated plate of an upper chamber to the perforated plate of a lower chamber, a steam introducing port at a bottom portion of the tower, a deaerating port at a top portion of the tower, a slurry discharging port at a chamber below a chamber having the slurry introducing port, and hot water ejectors directly under the perforated plates directed at least toward the lower surface of the perforated plates. The apparatus is constructed so that the slurry introducing pipe is connected to a slurry introducing port through an on-off valve and the inside diameter of the slurry introducing pipe is progressively enlarged to 1.2 times or more toward the slurry introducing port.
摘要翻译： 从含有聚氯乙烯的浆料中除去残留单体的装置和方法。 该装置具有圆柱形塔架，塔架在塔架中沿垂直方向设置多个多孔板，形成在作为其底面的多孔板上的多个室，设置在两个或更多个室的浆料导入部分， 多孔板允许浆料从上腔室的多孔板顺序地向下流到下腔室的多孔板，塔的底部的蒸汽引入口，塔顶部的脱气口 ，在具有浆料引入口的室下方的腔室处的浆料排出口和至少朝向多孔板的下表面的多孔板正下方的热水喷射器。 该设备被构造成使得浆料引入管通过开关阀连接到浆料引入口，并且浆料引入管的内径逐渐扩大到浆料引入口的1.2倍或更多。
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公开(公告)号：US5804039A
公开(公告)日：1998-09-08
申请号：US690143
申请日：1996-07-31
CPC分类号： B01J8/125 , B01D3/22 , B01D3/38 , C08F6/003 , Y10S159/10 , Y10S203/09
摘要： A method for removing residual vinyl chloride monomers from an aqueous slurry is disclosed. The method preferably utilizes a tower having a plurality of vertically spaced plates, which define a plurality of chambers, each chamber defined between adjacent plates. The tower features a plate in one of the chambers having a diameter of 1.05 to 5 times larger than the diameter of the plates in chambers above and below the chamber having the large plate. The method is based upon introducing the slurry to a particular location in the tower depending upon the porosity of the polyvinyl chloride in the slurry.
摘要翻译： 公开了一种从含水浆料中除去残余氯乙烯单体的方法。 该方法优选地利用具有多个垂直间隔开的板的塔，其限定多个室，每个室限定在相邻板之间。 该塔在其中一个室中具有一个板，其直径比具有大板的室的上方和下方的板的直径大1.05至5倍。 该方法基于将浆料引入塔中的特定位置，这取决于浆料中聚氯乙烯的孔隙率。
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公开(公告)号：US06375793B1
公开(公告)日：2002-04-23
申请号：US08385110
申请日：1995-02-07
IPC分类号： B01D338
摘要： The present invention provides a method and a tower for removing residual monomers in the manufacture of vinyl chloride resins (PVC). When residual monomers are removed from a PVC slurry after the slurry has undergone a polymerization due to contact with steam, the bubbles generated in the slurry are controlled to maintain stable fluid conditions. Residual monomers are effectively removed, and inclusion of foreign matter is inhibited. The tower has two or more levels and is divided into upper and lower sections. The inner diameter of the upper section is greater than that of the lower section. Each section is provided with at least one perforated tray. In addition, at least one hot water-ejecting device is provided in the tower.
摘要翻译： 本发明提供了制造氯乙烯树脂（PVC）时除去残余单体的方法和塔。 当浆料由于与蒸汽接触而经历聚合后，从PVC浆料中除去残余单体时，控制在浆液中产生的气泡以保持稳定的流体条件。 残留的单体被有效地去除，并且包含异物被抑制。 塔架有两层以上，分为上段和下段。 上部的内径大于下部的内径。 每个部分设置有至少一个多孔板。 此外，在塔架中设置至少一个热水喷射装置。
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