Besides,the process presnts stability and fastreaction,high rate of recovery of lead from waste baffery sludge.
讨论了ＰｂＯ＿２还原过程的热力学问题，并对ＦｅＳＯ＿４＋Ｈ＿２ＳＯ＿４还原转化剂处理废蓄电池泥渣中ＰｂＯ＿２及Ｐｂ过程进行了试验研究，热力学分析及试验结果表明：本研究的还原剂将ＰｂＯ＿２和Ｐｂ还原转化为ＰｂＳＯ＿４的热力学推动力大，反应速度快，工艺过程稳定以及Ｐｂ回收率高。
This paper describes a new hydrometallurgical method for recovery oflead from waste battery sludge with K_2CO_3 as eliminating sulphur agent and the combi-nation reducing agent developed by us.
本文研究了一种从废蓄电池泥渣中湿法回收铅的新工艺，该工艺以Ｋ＿２ＣＯ＿３脱硫，以自研的复合还原剂还原，以氟硅酸作电解液电冶Ｐｂ。
A significant fraction of this material can be expected to remain in the steam generators,accumulating as sludge and fouling on the top of the tubesheet and tube support plates,free span tube surfaces,crevices between the tube support plates and the tube walls.
核电站在运行时,腐蚀产物和杂质会从二回路迁移到蒸汽发生器中,这些物质中有很大一部分将残留在蒸汽发生器内,成为泥渣和污垢,并逐渐在管板和支撑板上部、管子表面、支撑板与管子的缝隙内沉积。
The results show that recycling activated sludge can improve organic substances removing in the treatment by lime and flocculants,the place of recycling is behind lime adding and before flocculants adding.
结果表明,活性泥渣回流有利于提高石灰混凝法对城市污水二级出水中有机物的去除,回流位置在石灰投加前、复合絮凝剂投加后,最佳回流量为新泥渣产生量的100%～200%,活性泥渣回流的最佳pH为11。
Mud-slag, discharged from the hydrolysis of calcium carbide to produce acetylene, contains large amounts of calcium oxide and small amounts of silicon, iron, aluminum, magnesium and carbon residue.
研究建立了电石泥渣的分析方法,并对试样进行了系统分析,105～110℃干燥重量法测自由水;用差热分析确定试样中氢氧化钙的实际分解温度,在580～600℃灼烧重量法测化合水,动物胶凝聚的二氧化硅沉淀中,先用重量法测出二氧化硅和碳渣含量,再用氢氟酸挥发除去其中的二氧化硅,再恒重,测出残渣即为碳渣含量,通过差减法测出二氧化硅含量;滤液中用磺基水杨酸分光光度法测三氧化二铁,铬天青S光度法测三氧化二铝,变色酸光度法测二氧化钛,EDTA容量法测氧化钙,EGTA容量法测氧化镁。
Industrial grade zinc sulfate is produced by waste sludge containing zinc and sulfuric acid as raw materials.
以含锌废泥渣和硫酸为原料生产工业级硫酸锌 ,经试验锌利用率 90 %以上 ,硫酸锌质量达到HG/T2 32 6 - 92标准的要求。