电渗析用于盐水浓缩的工艺及运行试验

通过试验验证了"双膜法"单元产生的含盐浓水采用"软化+一级电渗析浓缩+树脂软化+二级电渗析浓缩"的技术可行性。经处理后,一级电渗析淡水、二级电渗析浓水、二级电渗析淡水数据统计,淡水产水率96.7%、浓水产水率3.3%;脱盐率78%;淡水TDS 1 352 mg/L,淡水电导1 966μs/cm;最终浓水TDS 147 428 mg/L,浓水电导率124 100μs/cm,满足工程拟定指标。     

用离子交换膜从不锈钢酸洗废水中去除镍铬试验研究

研究了以酒石酸钠为配合剂,采用离子交换膜电渗析法从不锈钢酸洗废水中去除重金属镍铬离子,考察了电渗析时间、阴极室酒石酸钠浓度和pH、极板间距、电流密度等因素对镍、铬离子去除率的影响。试验结果表明:采用双膜三室电渗析槽进行电渗析,以石墨板为阳极、不锈钢板为阴极,在极板间距15cm、阴极室酒石酸钠浓度0.24mol/L、初始电流密度273 A/m2条件下,电渗析12h后,废水中总铬离子质量浓度从150mg/L降至0.910mg/L,总镍质量浓度从100mg/L降低至0.326mg/L,处理后废水中镍铬离子质量浓度均符合《污水综合排放标准》(GB 8978—1996)的要求。     

电渗析处理钕铁硼废料回收稀土过程中高盐难降解废水

利用电渗析技术对钕铁硼废料回收稀土冶炼过程中产生的高盐难降解废水进行脱盐处理,研究了浓室与淡室体积比、操作电压、极水浓度、原料液与极水流量等对脱盐性能影响及废水COD变化情况。研究发现：利用电渗析技术,废水脱盐率可达93%以上,淡室中废水的COD得到降解,浓室中废水的COD基本不会富集,电耗为15.9 kWh/m3,为钕铁硼废料冶炼废水处理提供了技术支撑。     

电渗析法处理钨的离子交换工艺交后液的研究

本文研究了用电渗析法处理钨生产的离子交换工艺的交后液,以回收水和盐,并减少污染,通过对电渗析处理交后液浓缩工艺的研究,提出一个处理交后液的工艺流程,并对电渗析过程中杂质的迁移行为进行了研究。     

离子交换膜电渗析技术在有色冶金中的应用概述

文章对离子交换膜电渗析技术在冶金中的应用进行了评述。     

电渗析在白酒生产中的应用

白酒加浆水需经软化处理 ,否则会造成固形物超标。常用设备有离子交换器、反渗透、电渗析等 ,与离子交换器、反渗透比较 ,电渗析具有运行成本低、得水率高的特点 ,适合中小酒厂使用 ,处理水的电导率控制在2.5μs/cm以下为宜。操作上稍嫌麻烦 ,需每隔0.5h测一次电导率 ,每2h换一次电极 ,每月酸洗一次。(一平)     

膜法在提取铼工艺中的应用

用(离子交换)膜法清除、富集及分离物质应用于人类活动的各个方面.其优点在于能耗与材料消耗低,生产规模变动简单、节约,还能在常温下使用. 膜法中具有特殊地位的是电渗析及其变种——薄膜电解.在电渗析的情况下使用两种离子交换膜,在膜电解的情况下使用一种离子交换膜.这两种方法造成了消电离作用     

电渗析在白酒生产中的应用

白酒加浆水需经软化处理 ,否则会造成固形物超标。常用设备有离子交换器、反渗透、电渗析等 ,与离子交换器、反渗透比较 ,电渗析具有运行成本低、得水率高的特点 ,适合中小酒厂使用 ,处理水的电导率控制在2.5μs/cm以下为宜。操作上稍嫌麻烦 ,需每隔0.5h测一次电导率 ,每2h换一次电极 ,每月酸洗一次。(一平)     

氰化贫液电渗析—酸法回收新工艺探讨

电渗析因除盐效率高,广泛用于处理苦咸水、含氟水制备饮用水,淡化海水和制盐,以及净化锅炉给水等方面.酸法回收氰,已在金矿氰化废液处理中得到较普遍的应用.通过文献研究和初步试验,可以设想电渗析—酸法回收联合的新工艺,对氰化贫液的有效处理与有价成分的综合回收,具有潜在的新的技术经济价值.     

氧化钙水化法脱碱对烧结法赤泥排硫影响的研究

本文根据试验研究结果，详细地论述了氧化钙水化法脱碱对烧结法赤泥排硫的影响，脱碱时赤泥中的硫进入溶液，对赤泥排硫水利，也增加了电渗析处理时溶液中的有害元素硫的含量，需进行溶液深度净化。     

熔炼次数对M17返回料合金成分、组织和性能的影响

实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。     

Shijiazhuang will Build the World's Biggest Replacingcopper-with-aluminum Cable Production Base

正Shijiazhuang City will build the world’s biggest replacing-copper-with-aluminum cable production base,the annual output value can reach 100 billion yuan,in the future it will develop replacing-copper-with-aluminum highend industry cluster.This piece of news was learned by the reporter at the Rare Earth highiron Aluminum Alloy[Nonferrous Business Opportunity:Aluminum alloy door]Cable Conductor New Technology Application Seminar held at the provincial capital.     

Chongqing is Preparing to Set Up Nonferrous Metal Exchange,in a Bid to Become the Transit Place of Kazakhstan Copper

正Since the beginning of Chongqing’s upgrading to a municipality directly under the Central Government,Chongqing City has established direct friendly relationship with Almaty,Kazakhstan,and carried out a series of cooperation in commerce and trade,and culture     

Guangxi Baise Extends Industrial Chain to Combat Loss in Aluminum Business

正"For each tonne of aluminum being produced,the upstream enterprise on the aluminum industrial chain will suffer loss about 2000yuan."Said Liang Xiao,Deputy Director of Pingguo Industrial Park Management Committee under the Guangxi Baise City,one of the four major aluminum industry bases in China,on August 11.Extending aluminum     

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL ANNUAL CONTENTS Volume 21(2014)

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Chinalco Straightened Out Copper Assets,and Delegated Stock Equity of Yunnan Copper

正Immediately after the news that Chinalco transferred 58%stock equity of Yunnan Copper Group to its wholly-owned subsidiary China Copper Corporation Limited free of charge was disclosed on July 9,many individual investors couldn’t help but to think:Does it mean China Copper Corporation Limited will assemble assets for overall listing?At present,among main copper business companies under China Copper Corporation     

The Development and Reform Commission Encourages Private Capital to Enter Geological Prospecting Field

正At the press conference recently held by the National Development and Reform Commission under the theme"Deepen Reform in Investment AuditApproval System",when answering questions from reporters,Huang Min,Director of the Department of Fixed Assets Investment of the National Development and Reform Commission,said that in the future it would continue to intensify efforts in geological prospecting,and actively guide social capital to enter this field.     

Guangxi's first Nickel Industry Development Research Report Was Released

正Recently,Guangxi Metallurgical Research Institute,a subsidiary of Guangxi Nonferrous Metals Group,completed survey on laterite and related manufacturers in the region,by combining the current development status of laterite both at home and abroad,it compiled Guangxi’s first"Research Report on the Development of Guangxi Nickel Industrial Chain"which adopted laterite as the study subject.This report expounded on the current     

China’s Major Non-ferrous Metals Imports & Exports(End of September. 2014)

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China's Major Non-ferrous Metals Imports & Exports

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