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Meanwhile, the concentration of Pb,Zn and other heavy metals is rather high in the oxidation zone and decreasesdownward to levels that are unbelievably low for Pb-Zn mine tailings. Theseobservations suggest that heavy metals should be re-immobilized by secondaryminerals, rather than primary minerals, in the oxidation zone, and could be leachedout from suboxic environment due to low rate oxidative dissolution which preventsthe precipitation of secondary minerals in significant amount. Thus, cover scenarioswhich establish a suboxic environment beneath the cover layer might not always beeffective in preventing heavy metal release from mine tailings.Sequential extraction studies indicate that, in addition to heavy metal leaching,oxidation of the mine tailings increased the mobility of residual Zn, and Cu, while Pb remains immobile due to the formation of anglesite (PbSO4). Using the seven-step extraction technique developed by Dold (J. Geochem. Explor., 2003, 80: 55-68), galena dissolves in significant amount at step 2 most probably due to the strong complexing of Pb2+ by acetate, while other metal sulfides dissolve at step 6, which suggest that this extraction technique could not be used to evaluate the mobility of lead in natural environment
重金属含量均低于新鲜尾矿，但以硬化层中的含量最高(Pb、Zn含量分别为0.47%和0.93%)，往下大幅度降低，表明尾矿风化过程中形成的次生矿物对Pb、Zn等重金属元素有较强的固定作用，而次氧化带的淋溶作用造成了金属元素的大量流失；(4)与新鲜尾矿相比，硬化层中铅的可迁移性大大降低，硬化层之下尾矿样品中铅的可迁移性也不同程度降低，这是由于硫化物氧化产生的硫酸根与尾矿中的铅反应形成铅矾(PbSO_4)的缘故；(5)氧化作用使尾矿中的zn、Cu等重金属的可迁移性不同程度地增大，其中对锌的可迁移性影响最大，铜的可迁移性与铁比较相似，铅则容易与硫化物氧化形成的SO_4~(2-)反应形成铅矾(PbSO_4)；(6)为了减少尾矿污染和修复矿山环境，人们提出了各种不同的尾矿覆盖方案，本文的研究结果表明，这些方法不一定能够有效地阻滞污染元素的迁移。
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Also there is much difference between the obtained metastable phase diagram at 35 ℃ and the metastable phase diagram at 25 ℃. The crystallization regions of schoenite(K2SO4*MgSO4*6H2O) and epsomite disappear and arise the crystallization regions of leonite and kainite.
所得35 ℃介稳相图与25 ℃介稳相图区别很大：软钾镁矾和七水硫酸镁结晶区域消失，同时出现了钾镁矾和钾盐镁矾的结晶区域。
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A large difference is found between the obtained metastable phase diagram at 35 ℃ and Vant Hoffs stable phase diagram at 25 ℃. The crystallization regions of schoenite(K2SO4*MgSO4*6H2O), epsomite(MgSO4*7H2O), magnesium sulfate pentahydrite(MgSO4*5H2O) and starkeyite(MgSO4*4H2O) disappear and the crystallization regions of leonit and astrankit are greatly incresed.
所得35 ℃介稳相图与Vant Hoff 25 ℃稳定相图比较有较大区别：软钾镁矾（K2SO4*MgSO4*6H2O）、七水硫酸镁、五水硫酸镁及四水硫酸镁结晶区域消失，钾镁矾和钾盐镁矾结晶区域显著扩大。
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The decomposition of ammonium jarosite bearing indium in NaOH medium were studied. The effects of NaOH addition, liquid-solid ratio, decomposition temperature and time on the decomposition ratio of ammonium jarosite were investigated, respectively, and the behavior of impurity elements, such as Zn, In, Cu, Cd, Pb, As, Sb, Sn and Ag in jarosite residues was also discussed.
摘 要：提出NaOH分解含铟铁矾渣新工艺，考察NaOH用量、液固比、温度和时间对铁矾渣分解率的影响，并讨论铁矾渣中杂质金属，如Zn、In、Cu、Cd、Pb、As、Sb、Sn和Ag等在NaOH分解过程中的行为。
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The effect of the addition of the crystal seed in the jarosite preciptation was investigated and the results showed that the crystal seed would accelerate the crystallizing rate of jarosite formation, which convert the reaction mechanism from the crystallization kinetic rate control into the chemical reaction kinetic control.
阐述了晶种加入对沉矾影响的过程机理，认为晶种的加入加快了沉矾反应的结晶速度，使反应由结晶的动力学控制过渡到化学反应动力学控制，足量晶种加入情形下沉矾过程的活化能为94.66KJ／mol，表明了氯化物体系铁矾沉淀较硫酸盐体系中更易进行。
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Jarosite process can obtain high recovery rate of zinc,simultaneously,most of indium remains in the jarosite residues and a little part of indium remains in the high acidities leaching residues.
某锌精矿中铟含量很高，采用黄钾铁矾法处理该高铟锌精矿，在得到较高锌回收率的同时，大部分的铟进入矾渣，少部分进入高浸渣，从矾渣和高浸渣中可回收得到电铟。
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The results indicate that both the precipitates produced by Leptospirillum ferriphium strain DY and Acidirhiobacillus ferrooxidans strain GF are composed of jarosite and ammonium jarosite. However, the content of jarosite in the precipitates synthesized by strain GF is 5.53% higher than that synthesized by strain DY, but the content of ammonium jarosite in the precipitates synthesized by strain DY is 15.24% higher than that synthesized by strain GF.
结果表明：无论是嗜铁钩端螺旋菌DY菌株，还是嗜酸氧化亚铁硫杆菌GF菌株合成的沉淀都是黄钾铁矾和黄铵铁矾的混合物；其中，GF合成的沉淀混合物中黄钾铁矾的含量比DY合成的黄钾铁矾约高出5.53%；而DY合成的沉淀中，黄铵铁矾的含量比GF合成的沉淀中的黄铵铁矾的含量约高出15.24%。
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The potassium ammonium jarosite with zinc and indium is obtained by Fe3+ ion removal from the iron,zinc and indium coexisted sulphate system by potassium ammonium jarosite process.
在铁、锌、铟共存的硫酸盐体系中采用黄钾铵铁矾法除铁，得到了含锌、铟的黄钾铵铁矾，通过TG/DTA和XRD对黄钾铵铁矾及其热分解产物进行表征。
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This paper presents the experimental data of metastable phase equilibrium of Na+, K+, Mg2+∥Cl-, SO2-4-H2O quinary system at 35 ℃, from which the metastable phase diagram is drawn. It consists of nine regions of crystallization saturated with sodium chloride, potassium chloride, glasserite(3K2SO4*Na2SO4), leonite(K2SO4*MgSO4*4H2O), kainite(KCl*MgSO4*2.75H2O), thenardite(Na2SO4), astrankit(MgSO4*Na2SO4*4H2O), carnallite(KCl* MgCl2*6H2O), magnesium sulfate hexahydrite(MgSO4*6H2O) and bischofit(MgCl2*6H2O).
研究得出（Na+， K+， Mg2+∥Cl-， SO2-4-H2O）五元体系35 ℃时的介稳溶解度数据，绘制了该体系35 ℃的介稳相图，共有9个为氯化钠所饱和的结晶区域：氯化钾、钾芒硝（3K2SO4*Na2SO4）、钾镁矾（K2SO4*MgSO4*4H2O）、钾盐镁矾（KCl*MgSO4*2.75H2O）、光卤石（KCl*MgCl2*6H2O）、白钠镁矾（Na2SO4*MgSO4*4H2O）、硫酸钠、六水硫酸镁（MgSO4*6H2O）和水氯镁石（MgCl2*6H2O）。
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The results showed that the height niche breadth of Litsea subcoriacea and Cinnamomum chekiangense in gaps and in non-gaps were the biggest. The height niche overlaps were greater between those species that had similar biological and ecological characteristics, and vice versa.
结果表明：桂北木姜子和浙江桂在林隙内外都占有较高的生态位宽度；生物学特性和生态学特性接近的树种高度生态位重叠较大，反之则较小；在林隙内，山矾和薄叶山矾的高度生态位重叠最大，而桂北木姜子和黄瑞木、尖叶水丝梨，浙江桂和尖叶水丝梨的高度生态位重叠较小；在非林隙内，山矾和黄瑞木的高度生态位重叠最大，桂北木姜子和尖叶水丝梨、黄瑞木的高度生态位重叠较小。
- 更多网络解释与矾相关的网络解释 [注：此内容来源于网络，仅供参考]
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methyl ammonium chrome alum：甲基铵铬矾(铁电体)
methyl ammonium aluminium selenate alum 甲基硒酸铵铝矾(铁电体) | methyl ammonium chrome alum 甲基铵铬矾(铁电体) | methyl ammonium gallium alum 甲基铵镓矾(铁电体)
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Nickelbl dite：钠镍矾;镍白钠镁矾
水氯镍石 nickelbischofite | 钠镍矾,镍白钠镁矾 nickelbl?dite | 斜镍矾,六水镍矾 nickelhexahydrite
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kieserite：水镁矾;硫镁矾
kieselguhr 硅藻土 | kieserite 水镁矾;硫镁矾 | kilaueite 隐晶玄武岩
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green vitriol：绿矾, 青矾, 铁矾
grease nipple 润滑脂注入口, 润脂枪喷嘴 | green vitriol 绿矾, 青矾, 铁矾 | greenhouse effect 温室效应
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iron vitriol：铁矾; 青矾; 七水硫酸亚铁
IRC 国际辐射委员会 | iron vitriol 铁矾; 青矾; 七水硫酸亚铁 | IRPTC 可能有毒化学品国际登记中心
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alunogen：毛矾石;毛盐矿
毛矾石 davite | 毛矾石;毛盐矿 alunogen | 毛矾石;毛盐矿 alunogenite
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meta alunogen：变毛矾石,准毛矾石
变矾石 meta-aluminite | 变毛矾石,准毛矾石 meta-alunogen | 变钾铀云母 meta-ankoleite
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Heuchera sanguinea：苏瀑布城'红花矾根}{'苏城瀑布'矾根}
Heuchera micrantha {'紫色宫殿'小花矾根} | Heuchera sanguinea {'苏瀑布城'红花矾根}{'苏城瀑布'矾根} | Hevea brasiheensis {三叶橡胶}
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Heuchera hybrid：王子'杂种矾根}{'舞姿'杂种矾根}{'银王子'杂种矾根}
Heteropappus hispidus {狗娃花} | Heuchera hybrid {'王子'杂种矾根}{'舞姿'杂种矾根}{'银王子'杂种矾根} | Heuchera micrantha {'紫色宫殿'小花矾根}
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Heuchera micrantha：紫色宫殿'小花矾根}
Heuchera hybrid {'王子'杂种矾根}{'舞姿'杂种矾根}{'银王子'杂种矾根} | Heuchera micrantha {'紫色宫殿'小花矾根} | Heuchera sanguinea {'苏瀑布城'红花矾根}{'苏城瀑布'矾根}