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朝鲜平北冶炼厂湿法提砷工艺设计 被引量:5
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作者 周晓源 郑子恩 李有刚 《有色金属》 CSCD 2003年第3期62-64,共3页
介绍朝鲜平北冶炼厂利用我国湿法提砷技术处理含砷烟尘生产As2 O3的工艺设计。两段分别水浸烟道尘和灰斗尘 ,浸出液经澄清、脱色、浓缩结晶、洗涤等过程产出优质白砷。技术经济指标为 :砷回收率 ,5 8% ;烟道尘浸出率 ,5 8 6% ;灰斗尘浸... 介绍朝鲜平北冶炼厂利用我国湿法提砷技术处理含砷烟尘生产As2 O3的工艺设计。两段分别水浸烟道尘和灰斗尘 ,浸出液经澄清、脱色、浓缩结晶、洗涤等过程产出优质白砷。技术经济指标为 :砷回收率 ,5 8% ;烟道尘浸出率 ,5 8 6% ;灰斗尘浸出率 ,83 14 % ;活性炭粉消耗 ,119kg/t 白砷 ;蒸汽消耗 ,2 40t/t 白砷 ;电能消耗 ,460 0kW·h/t 白砷。废气、废水和废渣分别经过适当的处理 。 展开更多
关键词 朝鲜平北冶炼厂 湿法提砷 工艺设计 烟尘 冶金技术
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湿法提砷新工艺探索 被引量:8
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作者 黄干生 全昌荣 《有色金属(冶炼部分)》 CAS 北大核心 1994年第3期3-4,共2页
水浸含砷烟尘后,以沉淀脱杂替代离子交换脱杂,简化了工艺、确保全部产品含Ag2O3>99%。
关键词 湿法提砷 沉淀脱杂 烟尘
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高含砷硫酸铜结晶母液提砷新工艺的研究 被引量:1
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作者 朱国荣 《铜业工程》 CAS 2019年第2期87-89,共3页
从介绍铜电解液净液过程中产生的粗硫酸铜结晶精制的方法入手,详细研究了高含砷硫酸铜结晶母液传统提砷的方法、硫化砷饼与结晶母液压煮提砷工艺与二氧化硫直接还原提砷方法,目的是通过对比多种方法的优缺点,找到一种更先进、更科学的... 从介绍铜电解液净液过程中产生的粗硫酸铜结晶精制的方法入手,详细研究了高含砷硫酸铜结晶母液传统提砷的方法、硫化砷饼与结晶母液压煮提砷工艺与二氧化硫直接还原提砷方法,目的是通过对比多种方法的优缺点,找到一种更先进、更科学的提砷技术,并通过生产实践证明其可行性。 展开更多
关键词 铜电解液 硫酸铜结晶母液 二氧化硫 压煮 直接还原 提砷
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从含砷物料中湿法提取优质As_2O_3的设计与生产 被引量:14
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作者 戴学瑜 《稀有金属与硬质合金》 CAS CSCD 2000年第2期34-36,共3页
介绍了从含砷物料中湿法提砷的新工艺。此工艺不仅提高了产品质量 ,而且避免了火法提砷所造成的环境污染问题。
关键词 物料 污染 湿法提砷 三氧化二 炼锡
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新疆某高硫铜锌矿选硫提铜降砷试验研究
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作者 罗木华 《甘肃冶金》 2023年第5期15-17,共3页
新疆某高硫铜锌硫化矿经铜锌混合浮选、铜锌分离、锌硫分离,选出合格铜精矿和锌精矿后,尾砂选出硫精矿。由于该矿石中含有部分砷黝铜矿,选别后硫精矿中有害元素As>0.20%,导致硫精矿质量差。针对此问题,通过硫精矿再磨提铜降砷反浮选... 新疆某高硫铜锌硫化矿经铜锌混合浮选、铜锌分离、锌硫分离,选出合格铜精矿和锌精矿后,尾砂选出硫精矿。由于该矿石中含有部分砷黝铜矿,选别后硫精矿中有害元素As>0.20%,导致硫精矿质量差。针对此问题,通过硫精矿再磨提铜降砷反浮选工艺得到低品位铜锌混合精矿和含As<0.10%的高品质硫精矿。 展开更多
关键词 硫精矿 铜降 反浮选 铜锌精矿
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提铜降砷的工艺矿物学研究 被引量:2
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作者 刘益萍 《矿产综合利用》 CAS 北大核心 2016年第1期67-70,75,共5页
针对矿石性质,进行了提铜降砷矿样的工艺矿物学研究,采用工艺矿物学所研究的手段,根据选矿中不易排除或降低砷的难度,从矿石的物质组成,铜、砷、硫、铁、锡元素的赋存状态,晶体形态,结晶粒度,元素在空间分布状态等方面作了综合分析,提... 针对矿石性质,进行了提铜降砷矿样的工艺矿物学研究,采用工艺矿物学所研究的手段,根据选矿中不易排除或降低砷的难度,从矿石的物质组成,铜、砷、硫、铁、锡元素的赋存状态,晶体形态,结晶粒度,元素在空间分布状态等方面作了综合分析,提出了影响该矿体有害杂质元素砷难以排除或降低的工艺矿物学因素,从中帮助选矿工作者找到排除或降低砷的最佳选矿工艺流程,最大限度来提高有价金属的回收率,产出高品质铜精矿。 展开更多
关键词 铜降 黄铜矿 毒砂 赋存状态 单体解离度 金属分布 回收率 工艺矿物
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提铜降砷工业试验及应用研究 被引量:4
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作者 王艳 《世界有色金属》 2017年第2期52-54,57,共4页
某厂处理的以铜矿石为主的铜锌锡多金属硫化矿,原流程下铜精矿品位及回收率指标不尽理想,铜精矿品位19%左右,回收率88%左右,铜精矿含砷品位高达1.0%以上,铜精矿含砷量偏高严重制约着铜精矿产品的正常销售;为降低铜精矿含砷品位并进一步... 某厂处理的以铜矿石为主的铜锌锡多金属硫化矿,原流程下铜精矿品位及回收率指标不尽理想,铜精矿品位19%左右,回收率88%左右,铜精矿含砷品位高达1.0%以上,铜精矿含砷量偏高严重制约着铜精矿产品的正常销售;为降低铜精矿含砷品位并进一步提升选铜指标,通过引进中南大学研发的OL-ⅡA新型铜捕收剂与CTP联合抑制含砷矿物的药剂制度、优化选铜工艺流程后,铜精矿含砷品位下降到0.63%,铜品位含铜品位提升到23%,铜精矿回收率达到92%以上。 展开更多
关键词 铜降 新型药剂 浮选工艺 工业应用
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制取特纯金属砷的无污染工艺 被引量:4
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作者 杨家驹 《有色冶炼》 1996年第3期35-35,共1页
制取特纯金属砷的无污染工艺目前在特纯牌号的金属砷生产中,氯化工艺占主导地位,当需要极高纯产品时,用制取单晶的办法,在系统剩余压力下,用区域熔炼进行金同砷的提纯。这是一种传统工艺,在许多工厂只是制取方法或过化砷的质量有... 制取特纯金属砷的无污染工艺目前在特纯牌号的金属砷生产中,氯化工艺占主导地位,当需要极高纯产品时,用制取单晶的办法,在系统剩余压力下,用区域熔炼进行金同砷的提纯。这是一种传统工艺,在许多工厂只是制取方法或过化砷的质量有差异而已。该工艺的主要缺点是:成品... 展开更多
关键词 金属 提砷 无污染 多硫化物法
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不锈钢搅拌槽腐蚀的原因分析
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作者 朱晓宇 《铜业工程》 CAS 2003年第2期65-67,共3页
本文对氧化性环境中不锈钢搅拌槽的腐蚀原因进行了分析和阐述 ,并提出控制槽体腐蚀的对策 。
关键词 湿法提砷 不锈钢 搅拌槽 缝隙腐蚀 焊接 钝化 氧浓差
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不锈钢搅拌槽腐蚀原因分析
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作者 朱晓宇 《设备管理与维修》 2003年第10期39-39,共1页
关键词 湿法提砷 搅拌槽 腐蚀 不锈钢 原因分析
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Assessment of selective sequential extraction procedure for determining arsenic partitioning in copper slag 被引量:7
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作者 Hui-bin ZHANG Yu-zheng HE +4 位作者 Jing-jing HU Ya-nan WANG Hua-zhen CAO Jun ZHOU Guo-qu ZHENG 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2020年第10期2823-2835,共13页
An optimized selective sequential extraction(SSE)procedure was developed to assess the arsenic(As)partitioning in copper slag.The potential As species in copper slag are partitioned into the readily soluble As,dissolv... An optimized selective sequential extraction(SSE)procedure was developed to assess the arsenic(As)partitioning in copper slag.The potential As species in copper slag are partitioned into the readily soluble As,dissolvable arsenates,sparingly soluble arsenates,As residing in sulfides,arsenopyrite and metal As,as well as As incorporated into glassy silicates.The inductively coupled plasma atomic emission spectrometry(ICP-AES),scanning electronic microscopy(SEM),transmission electron microscope(TEM),X-ray diffractometry(XRD)and Fourier transform infrared spectroscopy(FTIR)were used to characterize the leachates and residues produced from the operation scheme.The selectivity and recovery of extractants were evaluated through single-phase extraction procedures.Partitioning data of As in slag samples show good agreement with the reported works and the total As recovery of each operation is over 90%.This suggests that the optimized SEE scheme can be reliably employed for As partitioning in As-bearing byproducts from copper smelting. 展开更多
关键词 ARSENIC copper slag sequential extraction waste management copper smelting
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Industrial experiment of copper electrolyte purification by copper arsenite 被引量:10
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作者 郑雅杰 肖发新 +4 位作者 王勇 李春华 许卫 简洪生 马玉天 《Journal of Central South University of Technology》 2008年第2期204-208,共5页
Copper electrolyte was purified by copper arsenite that was prepared with As2O3.And electrolysis experiments of purified electrolyte were carried out at 235 and 305 A/m2,respectively.The results show that the yield of... Copper electrolyte was purified by copper arsenite that was prepared with As2O3.And electrolysis experiments of purified electrolyte were carried out at 235 and 305 A/m2,respectively.The results show that the yield of copper arsenite is up to 98.64% when the molar ratio of Cu to As is 1.5 in the preparation of copper arsenite.The removal rates of Sb and Bi reach 74.11% and 65.60% respectively after copper arsenite is added in electrolyte.The concentrations of As,Sb and Bi in electrolyte nearly remain constant during electrolysis of 13 d.The appearances of cathode copper obtained at 235 and 305 A/m2 are slippery and even,and the qualification rate is 100% according to the Chinese standard of high-pure cathode copper(GB/T467-97). 展开更多
关键词 copper arsenite copper electrolyte PURIFICATION electrolysis: industrial experiment
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In Vitro Picloram-lnduced Somatic Embryogenesis from Leaflets of Cherry (Prunus incisa Thunb,)
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作者 Ben Mahmoud Kaouther Elloumi Nadhra +2 位作者 Chakroun Ahlem Ahmed Jemmali Philippe Druart 《Journal of Life Sciences》 2011年第11期913-920,共8页
Cherry regeneration via somatic embryogenesis is a powerful tool to breeding. In this way, the embryogenic capacity of Prunus incisa specie has been tested from leaves under different interactions of picloram concentr... Cherry regeneration via somatic embryogenesis is a powerful tool to breeding. In this way, the embryogenic capacity of Prunus incisa specie has been tested from leaves under different interactions of picloram concentrations and darkness exposures. Induction culture was achieved on MS medium supplemented with picloram concentrations at 0.5, 1 and 1.5 mg.L1 and submitted to 10, 20, 30 and 40 days of darkness. The best rate of embryogenic leaves was obtained with the interaction of 30 days darkness exposure* 1 mg.L^-1 picloram. According to their age, leaves were differently reacted to somatic embryogenesis; indeed, the 2nd expanded leaf from the apex was the most embryogenic one. Concerning the effect of additional auxin to picloram (1 mg·L^-1), IAA at 0.1 mg·L^-1 and IBA at 0.1 mg·L^-1 gave significantly higher induction rates than all other concentrations, but regenerating somatic embryos showed some teratological abnormalities probably due to seconda;y embryogenesis. At the opposite, NAA at 0.5 mg·L^-1 didn't improve embryogenic rate but affected positively embryo development. Furthermore, embryogenesis preferentially took place on the basal part of leaf. Satisfactory rates of somatic embryogenesis are obtained but further improvement remains possible. 展开更多
关键词 Auxin PICLORAM somatic embryogenesis leaf explants Prunus incisa
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The Hepatoprotective Effects of Solanum Incanum on Acetaminophen-lnduced Hepatotoxicity in Guinea Pigs
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作者 Yahya Saleh Al-Awthan Mohammed A. Salama Ahmed M. Helal 《Journal of Life Sciences》 2010年第5期44-48,共5页
Solanum incanum, a shrubby herb, is widely distributed and used as analgesic, antitoxic, and antispasmodic in folk medicine. In the present study, the protective effects of aqueous extract of S. incanum against acetam... Solanum incanum, a shrubby herb, is widely distributed and used as analgesic, antitoxic, and antispasmodic in folk medicine. In the present study, the protective effects of aqueous extract of S. incanum against acetaminophen induced acute liver damage were evaluated in guinea pigs. Animals were orally administered with S. incanum extract (50 and 100 mg/ kg bw) and silymarin ( 100 mg / kg bw) respectively for 6 days followed by acetaminophen administration (2 g / kg bw) at the 7th day. The results showed that the treatment with S. incanum extract significantly lowered the acetaminophen-induced serum levels of hepatic marker enzymes (AST, ALT, and ALP), Liver histopathology also showed that S. incanum extract reduced the incidence of liver lesions including the swelling of hepatic cells, lymphocytes infiltration, nucleus condensation, and hepatic necrosis induced by acetaminophen treatment in guinea pigs. The S. incanum extract at a dose of 100 mg / kg bw was more effective in suppressing the oxidative damage than the extract at a dose of 50 mg / kg bw. Therefore, the results of this study suggest that S. incanum extract could protect liver against the acetaminophen-induced oxidative damage. 展开更多
关键词 Solanum incanum extract ACETAMINOPHEN HEPATOPROTECTION guinea pigs
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