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    • 3. 发明专利
    • Membrane separation unit
    • JP5362343B2
    • 2013-12-11
    • JP2008327480
    • 2008-12-24
    • 旭化成ケミカルズ株式会社
    • 知孝 橋本
    • B01D65/02B01D63/02C02F1/44C02F3/12
    • B01D61/18B01D63/02B01D2313/26B01D2315/06C02F3/1273C02F2303/16Y02W10/15Y10T137/86292
    • Intermittent gas flow and membrane separation apparatus and methods of use including an internal gas chamber including an upper wall; at least one inlet for supplying gas to the internal gas chamber; a column pipe that extends above the upper wall of the internal gas chamber, the column pipe including a lower end portion including a lower end portion opening in the internal gas chamber, the column pipe linking the internal gas chamber to an area external to the internal gas chamber for fluid flow between the internal gas chamber and the external area; an auxiliary pipe including one end portion connected to the column pipe for fluid flow between the auxiliary pipe and the column pipe, and another end portion branched off from the column pipe, the another end portion including an opening located in the internal gas chamber at a position higher than the lower end portion opening of the column pipe by a predetermined height; and an auxiliary pipe external tubular member including a closed end, the auxiliary pipe external tubular member surrounding the another end portion of the auxiliary pipe with the closed end being positioned below the opening in the another end portion of the auxiliary pipe, and spaced from the another end portion by a predetermined distance permitting fluid flow into the space between the wall of the tubular member and the auxiliary pipe.
    • 8. 发明专利
    • Liquid-storage device and pressure-control method thereof
    • 液体储存装置及其压力控制方法
    • JP2011225956A
    • 2011-11-10
    • JP2010098772
    • 2010-04-22
    • Sumitomo Metal Mining Co Ltd住友金属鉱山株式会社
    • MITSUI HIROYUKINAKAI OSAMUASATORI SEITARO
    • C22B23/00C22B3/04C22B3/44
    • C22B23/0453C22B3/02C22B23/0461C22B23/0469Y02P10/234Y10T137/0396Y10T137/3124Y10T137/3127Y10T137/794Y10T137/86187Y10T137/86292
    • PROBLEM TO BE SOLVED: To reduce the amount of hydrogen sulfide gas used in a sulfidation step and the amount of alkali used in exhaust gas treatment and to reduce operating costs by installation improvements specifically in a liquid-storage tank among sulfidation installations at which a sulfidation reaction is performed in hydrometallurgy of nickel oxide ore.SOLUTION: The liquid-storage device is used in a sulfidation installation that generates sulfides by causing sulfidation of a sulfate solution and is provided with: a plurality of liquid-storage tanks 11that store a slurry or a filtrate after solid-liquid separation; a collecting pipe 12 that collects exhaust gas from each liquid-storage tank 11or inert gas that goes towards each liquid-storage tank 11; and pressure-control pipework 13 that controls the internal pressure of the plurality of liquid-storage tanks 11by circulating inert gas and exhaust gas. The pressure-control pipework 13 joins with the collecting pipe 12 via a joint 30 and is provided with a pair of pressure-control valves 31, 32 placed in front of and behind the joint 30 at which the pressure-control pipework 13 joins with the collecting pipe 12.
    • 要解决的问题:为了减少在硫化步骤中使用的硫化氢气体的量和废气处理中使用的碱的量,并且通过在硫化装置中的储存罐中的装置改进中的安装改进来降低操作成本 在氧化镍矿的湿法冶金中进行硫化反应。 解决方案:液体储存装置用于通过硫酸盐溶液硫化产生硫化物的硫化装置,并且设置有:多个储液箱11, SB>在固液分离后存储浆液或滤液; 从每个储液罐11 n 或朝向每个储液箱11的惰性气体收集废气的收集管12 n < / SB>; 以及通过循环惰性气体和排气来控制多个储液箱11 n 的内部压力的压力控制管道13。 压力控制管道13经由接头30与收集管12连接并且设置有一对压力控制阀31,32,该压力控制阀31,32放置在接头30的前面和后面,在压力控制管道13处与压力控制管道13连接 收集管12.版权所有(C)2012,JPO&INPIT