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球形Ni(OH)2制备中pH在线检测及控制系统的设计和应用李涛1,陈飞彪1,郭荣贵1,傅钟臻1,于丽敏1,夏雯1,蒋文全1(1.北京市北京有色金属研究总院)摘 要:在球形Ni(OH)2制备过程中高盐度,高碱度,高温和强对流的环境因素导致pH电极稳定性降低,寿命缩短,pH参数检测和控制困难,为此采用反应釜外检测相对pH值的方法,设计pH在线检测装置和基于组态软件和可编程控制器的pH值在线控制系统,实现了pH值在0.02~0.05的微小波动范围测量,现场控制效果良好.关键词:无机非金属材料; 球形Ni......
云南镇沅老王寨金矿床地质特征及成因探讨张继武1,吴军1,李昌寿1,宿晓静1,王军平2(1.吉林省长春市长春黄金研究院2.云南黄金有限责任公司)摘 要:作为哀牢山金矿带北段的典型矿床,老王寨金矿床空间上位于北西向脆韧性剪切带与东西向逆冲脆韧性剪切带交汇部位,北西向脆韧性剪切带,不同时代的中酸性浅成侵入体,基性和超基性岩侵入体以及哀牢山群变质岩系与金矿体具有密切的时空及成因联系.矿石中石英的流体包裹体分析表明,金矿的成矿流体主要为中低温,低盐度的NaCl-H2O体系.结合同位素,成岩成矿年代的研究认为,成矿物质及成......
吉林延边杜荒岭金矿床成矿流体地球化学特征殷茜1,卿敏2,朴星海1,边红业3,程军4,张景海4,万多1(1.吉林省长春市吉林大学地球科学学院2.中国人民武装警察部队黄金地质研究所3.中国人民武装警察部队黄金第一总队4.中国人民武装警察部队黄金一支队)摘 要:杜荒岭金矿床产出于石英闪长岩中,矿化类型分爆破角砾岩筒型及放射状裂控蚀变岩型.流体包裹体研究表明,两类矿石石英中主要发育含NaCl子矿物三相,气相-富气相及气液二相等3种类型的原生流体包裹体.测温结果显示,包裹体均一温度总体为256.8~450℃,盐度S(Na......
黑龙江省英城子金矿床:后韧性剪切型金矿床唐铭君1,杨言辰1,杨兆武2,叶松青1,杨春成1(1.吉林省长春市吉林大学地球科学学院2.黑龙江省地球物理勘察院)摘 要:英城子金矿床是小兴安岭-张广才岭成矿带极具代表性的矿床.金矿体呈脉状,透镜状产出于叠加在韧性剪切带之上的脆性断裂带内.矿床地球化学分析表明,容矿的二长花岗岩,流纹岩具有钙碱性系列岩石特征,形成于火山弧和同碰撞构造环境,由原始地幔岩浆演化形成.成矿流体具有中低温中低盐度幔源流体特征,金矿成矿与后韧性剪切变形时期的构造-岩浆-热液活动密切相关,属于后韧性剪......
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Bashijiqike formation are restored based on the analysis of petrographic, electron microprobe composition, inclusions homogenization temperature, salinity and vapor composition and laser carbon... samples were selected. The fluid inclusions in these samples were then observed under the petrographic microscope and their homogenization temperature, salinity, and gaseous components were analyzed......
+), which can be classified as Na2SO4 type water, and only a few samples belongs to CaCl2 type and NaHCO3 type water. The wide distribution of oilfield water salinity are mainly related with significant heterogeneity of carbonate reservoirs, which leads the primary oilfield water to be mixed by fresh water derived from TSR and its salinity can be decreased. The distributional characteristic of high......
transfer coefficient tends to locate at the inlet positions of the bundle. Furthermore, the maximum salinity of seawater is 56 g/kg, which locates at the bottom row of the first-tube-pass bundle...达到56 g/kg,再次说明此区域换热强烈,生成较多的二次蒸汽.但是海水盐度过高,会促使其在蒸发过程中所含盐分受热分解并转化成不同形态物质沉淀在传热管表面形成结垢,因此在工程设计中应当格外引起注意,控制海水浓缩比不超过2.5,最高温度低于70 ℃可以避免发生上述现象. 图10 海水盐度分布 Fig.10 Distributions of seawater salinity......