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    • 28. 发明授权
    • Method for preparing silver halide emulsions and apparatus for implementing the method
    • 制备卤化银乳剂的方法及其实施方法
    • US06406821B1
    • 2002-06-18
    • US09684834
    • 2000-10-10
    • Yasunori IchikawaHideharu NagasawaTetsuo Nomiyama
    • Yasunori IchikawaHideharu NagasawaTetsuo Nomiyama
    • G03C1015
    • G03C1/015B01F3/0807B01F3/088B01F15/00357B01F15/0238B01F15/0261B01F15/0441B01F2013/1091B01F2215/0093
    • A method and an apparatus for precisely controlling flow rate of reactant solution such as silver nitrate solution or halide salt solution which is added into a precipitation vessel. The method comprises applying a pressure to each source of said two solutions and controlling both said applied pressure and a flow resistance of each feed lines of said two solutions so that each flow rate of the two solutions to be added into the precipitation vessel can be adjusted to a predetermined value. The apparatus comprises a storage vessel for the reactant, a feed line to feed the reactant into the precipitation vessel and a flow rate controller, wherein the storage vessel is connected to a pressure controller which includes a pressure vessel pressurized with air or other gases and a pressure control valve, the feed line has a pressure sensor for detecting a pressure inside the feed line, a flow meter and a flow path opening controller along its line in order, the flow rate controller controls the flow rate of the reactant fed into the precipitation vessel by controlling the pressure control valve and the flow path opening controller.
    • 一种精确控制反应物溶液如硝酸银溶液或卤化物盐溶液流入沉淀容器的方法和装置。 所述方法包括对所述两种溶液的每个源施加压力并控制所述施加的压力和所述两种溶液的每个进料管的流动阻力,使得可以调节要添加到沉淀容器中的两种溶液的每个流速 达到预定值。 该装置包括用于反应物的储存容器,将反应物进料到沉淀容器中的进料管线和流量控制器,其中该储存容器连接到压力控制器,压力控制器包括用空气或其它气体加压的压力容器和 压力控制阀,进料管线具有用于检测进料管线内的压力的压力传感器,流量计和流路开启控制器,其流量控制器控制进料到沉淀物中的反应物的流量 通过控制压力控制阀和流路打开控制器的容器。