化学锆和电解锆在生产锆铁红产品时的差异

问：目前市场上不少厂家推出了价格更具性价比的锆铁红产品，相比前两年来说，在当今原材料普遍涨价的同时，市场中的锆铁红产品价格并没有像镨黄等锆系列产品那样昂贵。请问秦工：化学锆和电解锆在生产锆铁红产品时主要有那些差异？使用电解法氧化锆生产锆铁红产品时需要注意那些问题？     

锆

稀有元素锆,是德国化学家克拉普鲁特在1789年首先发现的。直到1914年,人们才等一次制得金属锆。纯锆是银灰色金属,富有延展性,只要稍有一点杂质,就会变得很脆;锆是一种高温难熔的金属,熔点高达1930℃;金属锆粉呈黑色,极易自燃,燃烧时发出强烈的光亮;锆耐腐蚀;机械性能好,易于加工。锆在地壳中没有单独存在的矿床,常与钛铁、独居石等矿共存,因此提取困难。近二十年,由于科学技术的发展,锆在原子能工业及宇宙火箭的生产上崭露头角,受到     

锆英石石灰烧结法制取氧氯化锆、硝酸锆及二氧化锆

锆在解放前我国没有生产,解放后,在党的英明领导下,我国所产稀有金属的品种越来越多,应用范围越来越广,锆即是其中之一。由于锆是汽灯照明的重要材料,因此最近一年多来在农村中的需要量越来越大;其他在陶器、耐火材料、搪瓷和玻璃、高级合金钢、烟火工业、电子真空管以及原子反应堆等,应用锆的地方也很多。我厂制造各种锆化合物,在生产的第一个工     

用锆英石制氧氯化锆

1 前言氧氯化锆的分子式为 ZrOCl_2·8H_2O,它是生产二氧化锆的中间产品,用于耐火材料、陶瓷和釉的处理、纤维处理,还用于催化剂、固色剂、助染剂、防水剂、橡胶添加剂、涂料干燥剂等。近几年,由于新型材料精细陶瓷的兴起,许多国家都竞相开发二氧化锆的生产和应用,尤其是超纯、超细的半稳定氧化锆(PSZ)。目前日本、美国、澳大利亚、英国等国家所开发二氧化锆的生产方法几乎都是以氧氯化锆为中间产品。这样使氧氯化锆的市场需求量增大。     

金太阳锆业

<正>硅酸锆专业制造商品质是企业的生命源泉品质的内涵始终是我们企业长久发展的最终支持点以完善的经营体系、强势的企业品牌、用以质量求生存,以信誉求发展的企业精神——引领中国锆行业的潮流与方向。以准确的市场定位、傲视群雄的实力、打造锆行业的典范。山东金太阳锆业有限公司是专业从事锆、钛等有色金属选矿、研发、深加工及进出口贸易为一体的生产贸易型企业。自创建以来,蓬勃发展,目前是国内较大的、产业链最长的经营锆钛系列产品的企业、全国性规模生产经营硅酸锆的制造商。公司励志在未来几年内努力打造锆业航母,秉承"立足高远、创造价值"的企业精神,向专业化、规模化、集团化发展。     

锆英石陶瓷

锆英石作为酸性耐火材料,已在生产玻璃球及玻璃纤维的低碱铝硼硅酸盐玻璃窑炉上得到了广泛应用,锆英石瓷具有高的介电性能及机械性能,还可以用作电绝缘体及火花塞等等。苏联乌克兰耐火材料研究院试制了锆英石陶瓷,这种陶瓷不含烧结或易熔添加剂。     

锆英石制备非氧化物复合材料新进展

锆英石是生产陶瓷和耐火材料的主要原料之一。综述了国内外利用锆英石制备氧化锆-碳化硅复合材料、碳化锆-碳化硅复合材料、氮化锆-氮化硅复合材料、氮化锆-赛隆复合材料和硼化锆-碳化硅复合材料的研究现状,并展望了未来锆英石的发展方向。     

锆渣的微观特性及应用研究进展

氧氯化锆是一种重要的基础锆化合物产品,可作为多种锆化合物及金属锆产品的生产原料,对整个行业的发展非常重要,但其生产过程中产生大量的废渣-锆渣,虽然近年来关于锆渣的综合利用技术有了相关的研究,但应用效果仍离国家和社会要求有很大的距离.充分利用锆渣中的非晶态二氧化硅,开展清洁生产是行业发展趋势和企业的最终选择.     

等离子分解锆英石合成锆系颜料的生产技术

中科院力学所1995年成功地进行了等离子热解锆英石的研究，山东建材学院刘福田先生等1996年利用等离子分解锆英石（Plasma Dissocited Zircon)简称PDZ成功地合成了锆钒蓝和锆镨黄两种颜料，我厂应用PDZ产品成功地应用到锆系颜料的生产中，取得了较好的效果。     

锆及锆合金管道施工技术简介

锆与锆合金属于一种结构材料,具有优异的耐蚀性能。介绍了锆与锆合金的焊接特性,以及锆与锆合金的焊接工艺及注意事项。     

甘氨酸铝锆的生产工艺分析与研究

本文阐述了抑汗剂活性成分甘氨酸铝锆的生产工艺,对其生产工艺影响因素如反应温度、原料配比、pH值等进行了探讨,并对此产品的主要成分进行了分析,结果表明当甘氨酸铝锆产品中铝与锆的物质的量比为3.5∶1时,甘氨酸铝锆抑汗效果很好.     

Differences between Zirconium Hydroxide (Zr(OH)4·nH2O) and Hydrous Zirconia (ZrO2·nH2O)

Based on cause and effect rather than experiment data, zirconium hydroxide (Zr(OH)₄· n H₂O) is always considered as hydrous zirconia (ZrO₂· n H₂O). With the aid of nitric acid, XPS, XRD, XPF, and TGA, some differences between them have been confirmed. It is found that in contrast to zirconium hydroxide (the binding energy of zirconium = 183.6 eV), hydrous zirconia does not dissolve in nitric acid. The chemical properties of zirconium (181.8 eV) in hydrous zirconia are similar to those in zirconia (182.2 eV for the binding energy of zirconium), and the weight loss of hydrous zirconia is 21.5%, different from 32.19%, the weight loss of zirconium hydroxide. According to the experimental data, a structure for hydrous zirconia is proposed and then the different phenomena are explained.     

Synthesis of Zirconium Dioxide Microfiber from Aqueous Solutions

A technology for producing filamentary crystals of zirconium dioxide for the production of high-strength ceramics is developed. Comparative characteristics of the methods of precipitation of zirconium oxychloride crystals by chilling a supersaturated solution and salting out using hydrochloric acid are provided. A method for producing filamentary crystals of zirconium dioxide from oxychloride without using high temperatures and pressure is analyzed.     

除去硫酸锆中铁的研究

对比了用氯氧化锆和不用氯氧化锆生产硫酸锆产品的各种指标及两种生产工艺的主要优缺点，并对沉淀法生产硫酸锆中存在的问题提出了解决方法。     

Oxidative coupling of methane over sodium-chloride-added sodium zirconium phosphates

Monosodium zirconium phosphate or disodium zirconium phosphate by itself did not catalyze the oxidative coupling of methane and also the deep oxidation of methane. However, NaCl-added sodium zirconium phosphates showed markedly increased activity and high C₂₊ selectivity in the oxidative coupling of methane, which indicates that chlorine species or NaCl plays an essential role in the catalytic action. The catalytic performance became more stable with increasing content of NaCl. The primary reason for the catalyst deactivation is the loss of chlorine, and a possible secondary reason is the transformation of catalytic substance to the sodium zirconium phosphates having higher Na/Zr ratios or decomposition of sodium zirconium phosphates to zirconium oxide and sodium phosphate. Two kinds of surface chlorine species were observed, and the lower-binding-energy species is considered to be much more active than the higher-binding-energy species in methane activation, although the latter is present in a larger amount than the former.     

Effects of silica additives on sintering and stabilization characteristics of zirconium dioxide

Conclusions It was found that the sintering of pure zirconium dioxide is inferior to that of the commercial brand. Even with additions of 10% MgO and at a firing temperature of 1700 C stabilization is incomplete.Silica additions to specimens composed of 90 mol % ZrO₂ + 10 mol% MgO and 90 mol% ZrO₂ + 10 mol% CaO impede the formation of solid solution.In the presence of three to four percent SiO₂ almost the entire quantity of magnesium oxide is bound to silica, zirconium dioxide fails to stabilize and cracking sets in.Inasmuch as the formation of the solid solution occurs at lower temperatures in zirconium-calcium specimens, calcium oxide is bound to zirconium dioxide before cracking develop.Silica additions are unsuitable in the production of highly resistant refractories prepared from stabilized zirconium dioxide and its contents should be limited by technical specifications. Silica content in commercial zirconium dioxide should not exceed 1% or 0.5% for the production of heavy-duty parts.     

球磨制备超细硅酸锆新工艺

概述了球磨机湿法制备超细硅酸锆的生产线,对该生产线球磨各项工艺参数的确定进行了详细的阐述。生产实践证明:该生产线工艺设计合理、设备性能优良、生产成本低。生产的超细硅酸锆达到了国内高档陶瓷釉料乳浊剂所要求的质量品级。     

球磨制备超细硅酸锆新工艺

概述了球磨机湿法制备超细硅酸锆的生产线，对该生产线球磨各项工艺参数的确定进行了详细的阐述。生产实践证明，该生产线工艺设计合理、设备性能优良、生产成本低，生产的超细硅酸锆达到了国内高档陶瓷釉料乳浊剂所要求的质量品级。