由锌焙砂生产电池用氯化锌的工艺研究

介绍了一种用锌焙砂生产电池用氯化锌的新工艺，首先将锌焙砂与盐酸通过浸取反应生成粗氯化锌溶液，然后经过加高锰酸钾、锌粉等净化工序得到精氯化锌溶液，最后经蒸发浓缩制成电池用氯化锌产品，其工艺条件为：浸取温度为85—90℃，pH3．5～4．0；一次净化温度为60-70℃，pH5．1；二次净化温度为60～80℃，锌粉用量为理论量的120％；用该法制备的电池用氯化锌质量符合HG／T2323-2004标准。该工艺不仅扩大了原料来源，而且降低了生产成本，具有较高的实用价值。     

无污染的氯化锌生产工艺

目前国内的氯化锌生产普遍采用间歇法,不仅工艺落后,而且污染比较严重。污染源有三：     

从氯甲醚合成母液中回收氧化锌

研究了氯甲醚合成母液中氯化锌转化成氧化锌的过程，即将氯甲醚合成过程中的母液以水稀释处理，再使其中的氯化锌转化成氧化锌，进而烧成氧化锌，既减少污染又有经济效益。     

连续反应装置在氯化锌生产中的应用

介绍用连续反应装置生产氯化锌 ,既提高生产强度 ,又消除HCl气体和锌灰的污染 ,且反应产物组成稳定。     

硝酸与金属铜反应制备硝酸铜新工艺研究

在硝酸溶解金属铜的过程中，加入过氧化氮，控制反应条件，既解决了制备硝酸铜不冒黄烟（二氧化氮）污染环境的问题，又改变了传统工艺的减压浓缩等工序，不仅节约了硝酸而且简化了工艺。     

活性炭生产用复合活化剂

<正> 南京林业大学周雄尊研制。该剂由氯化锌、氯化镁、氯化钠组成。用其生产活性炭,工艺过程与设备同原氯化锌法相同,但其活化最终温度可降至460℃左右,除保留了原工艺的优点,还大大降低了氯化锌的挥发量,从而降低了氯化锌的总消耗和减轻了对大气环境的污染。     

叠式板型炉磷酸法工业化生产活性炭

本文介绍以磷酸为活化剂的磷酸法化学活性炭工业化生产工艺，技术，设备及特点，探讨磷酸法活性炭生产的主要理论与关键技术；阐明磷酸法较氯化锌法的明显优势，证实磷酸法板炉生产活性炭的可行性和污染轻，取代氯化锌法的必要性。     

高频等离子体工艺生产聚酯催化剂三氧化二锑

介绍了用高频等离子体工艺生产聚酯催化剂三氧化二锑的新工艺，是全国首家成功开发的一项先进技术。该工艺不但具有工艺流程短、设备简单、易于控制、生产能力大、无“三废”污染的特点优势，而且产品纯度高、催化活性好、在乙二醇中有良好的溶解性、各项指标均能达到聚酯催化剂要求，是聚酯缩聚反应的良好催化剂。该工艺既克服了湿法工艺流程长、设备庞杂、腐蚀性大、污染严重的弱点，又解决了产品不稳定、易变质难储存的难题。产品受到国内各聚酯生产厂家的欢迎．该法将逐步取代湿法工艺和进口产品。     

草甘膦生产中母液浓缩系统的工艺改造

本文介绍了草甘膦母液浓缩系统的工艺改造。用自然循环蒸发器取代原设计的强制循环蒸发器；用自排不凝性气体大气冷凝器取代真空泵以维持系统的真空度。经过改造，全系统具有流程简单合理、蒸发速率快，操作简便及节能显著等优点。     

江西大茅山活性炭厂废水处理及回收试车报告

江西大茅山活性炭厂,是一个具有中等生产规模的活性炭厂。以松木屑为原料,用氯化锌法生产各种优质糖用及药用活性炭,年产量为600吨左右。长期以来,由于废水处理问题未获解决,不仅对下游水体造成污染危害,而且工厂在经济上也蒙受巨大损     

氟碳树脂漆副产含锌废料的综合利用

氟碳树脂漆生产过程中,副产氯化锌-甲醇-锌粉混合废液。该副产物因含氯化锌和甲醇等有毒有害物质,直接排放会造成严重的环境污染;而且锌质量分数高达30%,充分利用可节约宝贵的锌资源。通过燃烧除甲醇、溶解分离锌粉、净化除杂质离子的工艺路线,制得纯氯化锌溶液,并进一步加工成碱式碳酸锌。通过实际生产运行,取得很好的经济效益,同时避免了环境污染。     

Heavy metals in the environment. Part IV: An investigation into the solubility of metal chlorides in HCl-saturated solutions and the recycling of high-aluminium zinc residues in the zinc chloride process

An investigation into the use of high-copper zinc residues in the production of zinc chloride solution and the recovery of copper, as anhydrous copper(II) chloride, is reported. The process developed involves leaching of the high-copper zinc residues with concentrated hydrochloric acid to dissolve the zinc content leaving a residue which has a high copper content. Any copper dissolved in the primary leach is removed by electrodeposition to give a zinc chloride solution suitable for industrial use. The solid residue from the initial leach is trated with chlorine gas to solubilise the copper present, giving a solution of copper(II) chloride. This solution is purified to remove Zn²⁺ and Pb²⁺ by anion-exchange and Fe³⁺ and Al³⁺ by hydrolysis. The purified solution can then be converted to anhydrous copper(II) chloride with a purity of 99·6%.     

氯化铑制备工艺及其催化性能研究

研究氯化铑的制备工艺,同时开发一种快速溶解铑的溶剂,并考察此方法制备的氯化铑在羰基合成醋酐、醋酸中的催化性能.以金属铑为原料,采用自制高效溶剂R101,快速将铑溶解后,经过旋转蒸发仪将溶剂R101回收后待下次再利用,经干燥后可得氯化铑产品,通过XPS,SEM,XRD和ICP的表征,来证明本方法制备的氯化铑具备高的催化活...     

氯化钾镀锌工艺的发展

介绍了国内第一、二、三代氯化钾镀锌工艺添加剂的主要组分及性能特点。第三代氯化钾镀锌采用低泡载体光亮剂,除了具有第一、二代氯化钾镀锌的优点外,还具有以下特点:镀液可以采用压缩空气搅拌;允许电流密度大,生产效率高;镀层配合三价铬钝化,耐中性盐雾腐蚀性能超过氰化镀锌和碱性无氰镀锌。     

Zinc-mediated hatching of eggs of soybean cyst nematode,Heterodera glycines

Egg hatching of the soybean cyst nematode,Heterodera glycines, was not affected by millimolar concentrations of calcium sulfate or calcium chloride. However, zinc chloride and zinc sulfate caused strong and moderate increases in hatching, respectively. The inhibitors of calcium transport, ruthenium red and lanthanum chloride, and calcium ionophore A23187 had no effect on hatching in the presence or absence of 3 mM zinc chloride. Selected chelators decreased the zinc-induced hatching ofH. glycines eggs. Eggs exhibited a formation constant with zinc between 5.5 and 11.2. The addition of zinc chloride after chelation with EDTA and rinsing caused expected hatching rates. Concentrations of calcium chloride, manganese chloride, and magnesium chloride had no effect on hatching of eggs in zinc chloride, but reduced hatching at higher concentrations, possibly by osmotic influences. Hatching of eggs was increased as the time of exposure to zinc chloride was increased and was maximal at 28 °C and a pH of 5.3. Picrolonic acid, a known hatching stimulant, increasedH. glycines hatching, while sodium metavanadate had no effect. Analysis of seasonal hatching during 1981–1982 in untreated control eggs indicated that hatching was most pronounced in May.     

次氧化锌浸取净化新工艺

研究了以炼铅厂含锌烟灰为原料,经盐酸浸取、高锰酸钾氧化、锌粉置换制备氯化锌溶液的工艺。以锌的浸出率最高,杂质铅的浸出率最低,铁、锰、铅、镉、铜脱除最彻底为目标,实验得出最佳的酸浸和净化条件：40 g次氧化锌、71 mL浓盐酸、130 mL水在30 ℃下浸取50 min后,过滤,洗涤滤渣,滤液定容为250 mL,取200 mL滤液,滤液中加高锰酸钾0.013 6 g,10 ℃下氧化2 h后过滤,取200 mL二次滤液向其中加锌粉0.12 g,40 ℃下反应50 min后过滤,得浓度为1.63 mol/L的氯化锌溶液。在上述工艺条件下,锌的浸出率为94.2%,氯化锌溶液中杂质离子含量满足HG/T 2323-2012《工业氯化锌》中优等品的要求,可用来生产符合GB/T 19589-2004《纳米氧化锌》规定的Ⅰ类纳米氧化锌。     

Knockdown of Mitogen-Activated Protein Kinase Kinase 3 Negatively Regulates Hepatitis A Virus Replication

Zinc chloride is known to be effective in combatting hepatitis A virus (HAV) infection, and zinc ions seem to be especially involved in Toll-like receptor (TLR) signaling pathways. In the present study, we examined this involvement in human hepatoma cell lines using a human TLR signaling target RT-PCR array. We also observed that zinc chloride inhibited mitogen-activated protein kinase kinase 3 (MAP2K3) expression, which could downregulate HAV replication in human hepatocytes. It is possible that zinc chloride may inhibit HAV replication in association with its inhibition of MAP2K3. In that regard, this study set out to determine whether MAP2K3 could be considered a modulating factor in the development of the HAV pathogen-associated molecular pattern (PAMP) and its triggering of interferon-β production. Because MAP2K3 seems to play a role in antiviral immunity against HAV infection, it is a promising target for drug development. The inhibition of MAP2K3 may also prevent HAV patients from developing a severe hepatitis A infection.     

新型镀锌光亮剂糠叉丙酮合成的研究

以丙酮和糠醛为原料 ,在Ando催化剂存在下合成了糠叉丙酮。对影响反应的因素作了考察 ,确定出反应的最佳工艺条件为 :n(丙酮 )∶n(糠醛 ) =3 0∶1 0 ,m(催化剂 )∶ m(反应物 ) =4 1∶10 0 0 ,反应温度 40℃ ,反应时间 4 0h ,收率可达 87 8%。产物用元素分析和红外光谱进行了确证。并将其用于酸性氯化钾和氯化钠镀锌液中均获得光亮、细致的镀锌层。     

从废弃甲醇合成催化剂中回收氯化亚铜和氧化锌的新工艺研究

国内甲醇产能约3000万t/a,可综合利用的废弃甲醇合成催化剂约3000t/a,笔者研究了一种从废弃甲醇合成催化剂中回收氯化亚铜和氧化锌的新工艺.简述了回收氯化亚铜和氧化锌的制备原理;论述了废弃催化剂的预处理工艺条件以及浸取制备氯化亚铜和氧化锌的工艺条件.研究结果表明:回收的氯化亚铜产品质量可达到GB1619-79中标...