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Role of trivalent antimony in the removal of As, Sb, and Bi impurities from copper electrolytes

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International Journal of Minerals,Metallurgy and Materials 2013年第1期20卷 9-16页

作者： Fa-xin Xiao dao cao Jian-wei Mao Xiao-ni Shen Feng-zhang Ren School of Materials Science and engineering Henan University of Science and Technology Henan Key Laboratory of Advanced Nonferrous Metal Materials

The role of trivalent antimony was investigated in removing As, Sb, and Bi impurities from a copper electrolyte. Puri- fication experiments were carried out by adding a various concentrations of Sb（III） ions in a synthetic electrolyte containing 185 g/L sulfuric acid, 45 g/L Cu2＋, 10 g/L As, and 0.5 g/L Bi under stirring at 65℃ for 2 h. The electrolyte was filtered, and the structure, morphology and composition of the precipitate were analyzed by means of chemical analysis, scanning electron mi- croscopy （SEM）, X-ray diffraction （XRD）, transmission electron microscopy （TEM）, and IR spectroscopy. The precipitate is composed of irregular lumps which are agglomerated by fine dendritic and floccus particles, and it mainly consists of As, Sb, Bi, and O elements. Characteristic bands in the IR spectra of the precipitate are As-OX （X=As, Sb, Bi）, Sb-OY （Y=Sb, Bi）, O-As-O1 As-OH, Sb-OH, and O-H. The precipitate is a mixture of microcrystalline SbAsQ, （Sb,As）203, and amorphous phases. As, Sb, and Bi impurities are effectively removed from the copper electrolyte by Sb（III） ions attributing to these pre- cipitates.

关键词： copper metallurgy electrorefining electrolytes impurities removal antimony arsenic bismuth

单孔胸腔镜在早期非小细胞肺癌治疗的应用研究

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中国医疗器械信息 2024年第7期30卷 108-110页

作者：李金涛曹道白音王浩然北京大望路急诊抢救医院胸外科北京100021

目的:比较使用单孔胸腔镜与双孔胸腔镜对早期非小细胞肺癌(NSCLC)患者进行根治性切除的治疗效果。方法:筛选科室在2020年1月~2022年8月收治的早期NSCLC患者为研究对象,患者均接受肺段切除术,按照手术方式分为观察组(单孔胸腔镜)和对照组... 详细信息

目的:比较使用单孔胸腔镜与双孔胸腔镜对早期非小细胞肺癌(NSCLC)患者进行根治性切除的治疗效果。方法:筛选科室在2020年1月~2022年8月收治的早期NSCLC患者为研究对象,患者均接受肺段切除术,按照手术方式分为观察组(单孔胸腔镜)和对照组(双孔胸腔镜),每组各58例早期NSCLC患者。比较两组患者围手术期指标、术后疼痛和并发症情况以及肺功能恢复和随访1年的数据。结果:观察组患者手术时间和住院时间短于对照组(P0.05);术后24h和72h数字评分法观察组两个时间点得分均低于对照组(P0.05)。结论:相比双孔胸腔镜手术,单孔胸腔镜手术能减少患者住院时间和术后疼痛,改善患者肺功能状态,但在术中出血量、并发症发生率和术后1年生存率上无差别。

关键词：单孔胸腔镜双孔胸腔镜非小细胞肺癌肺段切除术

Dedication on the Occasion of Professor Xiaqi Ding's 80th Birthday

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Acta Mathematicae Applicatae Sinica 2008年第3期24卷 353-354页

作者： dao-min cao Gui-qiang Chen Yan-yan Li Xi-ping Zhu Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100190 China Department of Mathematics Northwestern University Evanston USA Department of Mathematics Rutgers University Piscataway NJ 08854 USA Department of Mathematics Zhongshan University Guangzhou 510275 China

This volume is dedicated to Professor Xiaqi Ding, an academician of the Chinese Academy of Sciences, on the occasion of his eightieth birthday.

关键词： Orlicz Space Cultural Revolution Distinguished Research Tricomi Problem Hermitian Expansion

Improving corrosion resistance of Cu-Al-based anodes in KF-AlF_(3)-Al_(2)O_(3)melts

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Transactions of Nonferrous Metals Society of China 2022年第1期32卷 354-363页

作者： Sai Krishna PADAMATA Andrey YASINSKIY Aleksandr SHABANOV Timofey BERMESHEV You-jian YANG Zhao-wen WANG dao cao Peter POLYAKOV Laboratory of Physics and Chemistry of Metallurgical Processes and Materials Siberian Federal UniversityKrasnoyarskRussia Laboratory of Molecular Spectroscopy Krasnoyarsk Science Center SB RASKrasnoyarskRussia School of Metallurgy Northeastern UniversityShenyang 110819China

The anodic behaviour of pre-oxidised and non-oxidised Cu-Al-based anodes(Cu-10Al and Cu-9.8Al-2Mn)in KF-AlF_(3)-Al_(2)O_(3)melts was studied through galvanostatic and potentiodynamic polarization *** alloy compositions were oxidised for a short-term(8 h)at 700℃,followed by galvanostatic polarization for 1 h at 800℃with an applied current density of 0.4 A/cm^(2).The potentiodynamic curves were recorded with a sweep rate of 0.01 V/*** analysis was conducted on frozen melt samples collected on the surface of the anode,and SEM observation was performed on the anode after the experiment to study the phases of the scales formed on the *** the anode materials had a steady potential between 2.30 and 2.50 V(vs Al/AlF_(3)).The corrosion rates of the anodes were calculated from the data acquired through potentiodynamic *** was seen that pre-oxidised anodes possess a low corrosion rate compared to those without pre-oxidation treatment.

关键词： inert anodes potassium cryolite Cu-Al alloys corrosion aluminium electrolysis oxygen-evolving electrodes

Role of Sb(V) in removal of As, Sb and Bi impurities from copper electrolyte

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Transactions of Nonferrous Metals Society of China 2014年第1期24卷 271-278页

作者：肖发新曹岛毛建伟申晓妮任凤章河南科技大学材料科学与工程学院洛阳471003 河南科技大学河南省有色金属材料科学与加工技术重点实验室洛阳471003

The function mechanism of Sb（V） in As, Sb and Bi impurities removal from copper electrolyte was investigated by adding Sb（V） ion in a synthetic copper electrolyte containing 45 g/L Cu2＋, 185 g/L H2SO4, 10 g/L As and 0.5 g/L Bi. The electrolyte was filtered, and the precipitate structure, morphology and composition were characterized by chemical analysis, SEM, TEM, EDS, XRD and FTIR. The results show that the precipitate is in the shape of many irregular lumps with size of 50-200 μm, and it mainly consists of As, Sb, Bi and O elements. The main characteristic bands in the FTIR spectra of the precipitate are As-O-As, As-O-Sb, Sb-O-Bi, Sb-O-Sb and Bi-O-Bi. The precipitate is the mixture of microcrystalline of AsSbO4, BiSbO4 and Bi3SbO7 by XRD and electronic diffraction. The removal of As, Sb and Bi impurities by Sb（V） ion can be mainly ascribed to the formation of antimonate in copper electrolytes.

关键词： As Bi As Bi antimonate copper electrolyte removal purification

Screening of morphology-related genes based on predatorinduced transcriptome sequencing and the functional analysis of Dagcut gene in Daphnia galeata

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Current Zoology 2024年第4期70卷 440-452页

作者： Ya-Qin cao Ya-Jie Zhao Hui-Ying Qi Jin-Fei Huang Fu-Cheng Zhu Wen-Ping Wang dao-Gui Deng School of Life Science Huaibei Normal UniversityHuaibei 235000AnhuiChina

High fish predation pressure can trigger"induced defense"in Daphnia species,resulting in phenotypic plasticity in morphology,behavior,or life-history *** molecular mechanisms of defense morphogenesis(e.g.,the tail spine and helmet)in Daphnia remain *** the pres-ent study,the tail spine,helmet,and body of Daphnia galeata under fish and non-fish kairomones conditions were collected for transcriptome analysis.A total of 24 candidate genes related to the morphological defense of *** were identified,including 2 trypsin,one cuticle protein,1 C1qDC protein,and 2 ferritin *** function of the Dagcut gene(*** cuticle protein gene)in relation to tail spine morphology was assessed using RNA interference(RNAi).Compared with the EGFP(Enhanced green fluorescent protein)treatment,after RNAi,the expression levels of the Dagcut gene(*** cuticle protein gene)showed a significant ***,the tail spines of the offspring pro-duced by *** after RNAi of the Dagcut gene appeared curved during the *** whole-mount in situ hybridization,a clear signal site was detected on the tail spine of *** before RNAi which disappeared after *** results suggest that the Dagcut gene may play an important role in tail spine formation of ***,and will provide a theoretical basis for studying the molecular mechanisms of the morpho-logical plasticityin cladocera inthefuture.

关键词： Dagcut Daphnia galeata fish kairomones RNAi tail spine transcriptome sequencing.

益气通脉煎剂治疗冠心病心绞痛的临床疗效观察

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中国药房 2008年第30期19卷 2392-2393页

作者：曹道俊河南焦作市第二人民医院心内科焦作市454001

目的:观察益气通脉煎剂治疗冠心病心绞痛的临床疗效及对患者血清血脂水平的干预作用。方法:将96例冠心病心绞痛患者随机分为2组:治疗组48例,服用益气通脉煎剂,每日1剂;对照组48例,服用冠心Ⅱ号,每日1剂。2组疗程均为4周。结果:治疗组缓... 详细信息

目的:观察益气通脉煎剂治疗冠心病心绞痛的临床疗效及对患者血清血脂水平的干预作用。方法:将96例冠心病心绞痛患者随机分为2组:治疗组48例,服用益气通脉煎剂,每日1剂;对照组48例,服用冠心Ⅱ号,每日1剂。2组疗程均为4周。结果:治疗组缓解心绞痛临床症状及心电图改善的有效率均显著优于对照组(P<0.01或P<0.05);2组治疗后的血脂水平有显著性差异(P<0.05)。结论:益气通脉煎剂治疗冠心病心绞痛有较好临床疗效。

关键词：冠心病心绞痛益气通脉煎剂气虚血瘀痰浊证血脂水平临床疗效

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关于《诗经》研究的几个问题

中国诗歌研究 2004年第1期 129-141,367页

作者：曹道衡中国社会科学院

本文对《诗经》研究中的几个问题进行了清理。一是关于"逸诗"和"孔子删诗"。作者认为《诗经》的基本内容当定型于孔子以前,只是当时不叫《诗经》,而叫《诗三百》,孔子删诗"之说不足信。所谓"逸诗",未必是被删之篇,而是汉初人在根据记忆... 详细信息

本文对《诗经》研究中的几个问题进行了清理。一是关于"逸诗"和"孔子删诗"。作者认为《诗经》的基本内容当定型于孔子以前,只是当时不叫《诗经》,而叫《诗三百》,孔子删诗"之说不足信。所谓"逸诗",未必是被删之篇,而是汉初人在根据记忆缮写时遗漏的文字。二是《毛诗》与三家诗论美刺的问题。"三家诗"与《毛诗》对诗经中不少作品的解释似无重大分歧,但在"美""刺"问题上则有较大不同。这和儒家对待《诗》的态度有关。所谓"美"、"刺"之别常常是出于引用者的着眼点不同,而非"三家诗"本意与《毛诗》有别。三是就某些诗的出现时代问题,对前人的一些看法出质疑。

关键词：逸诗孔子删诗三家诗

二钼酸铵晶体饱和水溶液Raman光谱的变异现象及其机理

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无机化学学报 2006年第7期22卷 1203-1209页

作者：曹道锦陈文汨江兵刘红召中南大学冶金科学与工程学院冶金物理化学研究所

记录了常温下二钼酸铵晶体饱和水溶液的Raman光谱,并分别与二钼酸铵晶体、仲钼酸铵晶体、仲钼酸铵晶体饱和水溶液、水溶液状态下单钼酸根离子的Raman光谱进行了比较研究。结果表明:二钼酸铵晶体饱和水溶液Raman光谱相对二钼酸铵晶体Rama... 详细信息

记录了常温下二钼酸铵晶体饱和水溶液的Raman光谱,并分别与二钼酸铵晶体、仲钼酸铵晶体、仲钼酸铵晶体饱和水溶液、水溶液状态下单钼酸根离子的Raman光谱进行了比较研究。结果表明:二钼酸铵晶体饱和水溶液Raman光谱相对二钼酸铵晶体Raman光谱,明显地发生了变异现象。二钼酸铵晶体饱和水溶液Raman光谱其主要特征峰最高振动频率937.6cm-1与仲钼酸铵晶体饱和水溶液Raman光谱主要特征峰最高振动频率937.6cm-1完全吻合,而其次高振动频率893.9cm-1,恰好介于水溶液中单钼酸根离子Raman光谱主要特征峰最高振动频率895.1cm-1与仲钼酸铵晶体饱和水溶液Raman光谱主要特征次高峰振动频率891.0cm-1之间,而且三者彼此接近。二钼酸铵晶体饱和水溶液Raman光谱主、次特征峰强度之比值为2.1,与仲钼酸铵晶体饱和水溶液Raman光谱主、次特征峰强度之比值4.4相比,一半不足。提出了一种利用Raman光谱主要特征峰振动频率及其主、次特征峰强度之比值对二钼酸铵晶体饱和水溶液组分同时进行定性和半定量分析的新方法。发现了常温下二钼酸铵晶体饱和水溶液中二钼酸根离子Mo2O72-已经不复存在,完全转变成了优势组分仲钼酸根离子Mo7O246-和次要组分单钼酸根离子MoO42-;证明了常温下含钼水溶液酸化过程中溶液Raman光谱离散性变化现象的存在。运用结构化学和物理化学原理同时讨论了二钼酸铵晶体饱和水溶液Raman光谱发生变异现象的机理。

关键词：二钼酸铵晶体饱和水溶液 Raman光谱变异现象机理