权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Low-emission synthesis of titanium alloys

钛合金的低排放合成

基本信息

批准号：
278127992
负责人：
Professor Dr.-Ing. Bernd Friedrich
金额：
--
依托单位：
Lehrstuhl für Rohstoffaufbereitung und Recycling
依托单位国家：
德国
项目类别：
Research Grants (Transfer Project)
财政年份：
2015
资助国家：
德国
起止时间：
2014-12-31 至 2017-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/278127992?language=en
关键词：
Low emission synthesis titanium alloys

项目摘要

The DFG research group FOR 1372, comprising the project partners, the Institute of Mineral and Waste Processing, Waste Disposal and Geomechanics at the University of Clausthal (IFAD), and the Institute of Process Metallurgy and Metal Recycling at the University of Aachen (IME), developed a method for the aluminothermic production of titanium aluminium alloys (ASH- synthesis) involving fewer process steps.The process step minimisation is based on the production and use of high-purity synthetic TiO2 concentrates by reducing ilmenite metal agglomerates with atomic hydrogen using sulphuric acid leaching and hydrolysis under normal conditions and on the mechanical activation of rutile concentrates.The use of these materials in the production of aluminothermic titanium aluminium alloys led to a reduced need for booster material by 30% and thus to reduced chlorine emissions.With this result, the first phase DFG research group FOR 1372 has reached their target for the above mentioned project partners. The target of the 2nd phase is to transfer the developed technology to a commercial scale in the form of a transfer project with partners from the industry.IFAD, in cooperation with the engineering company Siebtechnik GmbH, will strive for an industry-compatible introduction of the mechanical activation through the modification of the used eccentric vibratory mill for the production of mechanically activated rutile ore concentrate. Another aim is to investigate the process step minimised production of synthetic TiO2 from the mass raw material ilmenite in terms of reaction kinetics and to get to a point where it can be put into use. The industry partner Siebtechnik GmbH shall, in this case, provide support in the separation steps solid-liquid after leaching and hydrolysis through the their centrifuge laboratory.The part that IME will take on together with the metallurgical company Elektrowerk Weisweiler GmbH is the transfer of the developed technology to a scale in tons. To achieve this, mechanically activated rutile ore concentrate will be used as input material and thermal balance sheets will be drawn up. A parallel research on low potassium booster mixtures by mechanical activation is also planned, which is to be developed jointly by both project partners. Energy balance sheets are to be drawn up for the aluminothermic system. The industrial application of the ASH synthesis is to be elevated to a higher technical level by the application of vacuum inert gas technology.

DFG研究小组FOR 1372由项目合作伙伴克劳斯塔尔大学矿物和废物处理、废物处理和地质力学研究所（农发基金）以及亚琛大学工艺冶金和金属回收研究所（IME）组成，开发了铝热法生产钛铝合金的方法，（灰-合成）涉及较少的工艺步骤。工艺步骤最小化是基于生产和使用高通过在正常条件下使用硫酸浸提和水解用原子氢还原钛铁矿金属团聚体，金红石精矿的机械活化。在铝热钛铝合金的生产中使用这些材料，导致对传爆药材料的需求减少了30%，从而减少了氯的排放。有了这一结果，DFG第一阶段研究小组FOR 1372已经达到了上述项目合作伙伴的目标。第二阶段的目标是通过与行业合作伙伴的转让项目，将开发的技术转化为商业规模。农发基金将与Siebtechnik GmbH工程公司合作，通过改造用于生产机械活化金红石精矿的旧偏心振动磨机，努力实现与行业兼容的机械活化。另一个目的是研究在反应动力学方面从大量原料钛铁矿最小化生产合成TiO 2的工艺步骤，并达到可以投入使用的程度。在这种情况下，工业合作伙伴Siebtechnik GmbH将通过其离心机实验室为浸出和水解后的固液分离步骤提供支持。IME将与冶金公司Elektrowerk Weisweiler GmbH一起承担的部分是将开发的技术转移到吨级规模。为实现这一目标，将使用机械活化的金红石精矿作为输入材料，并编制热平衡表。还计划通过机械活化对低钾助推剂混合物进行平行研究，该研究将由两个项目伙伴共同开发。应编制铝热系统的能量平衡表。真空惰性气体技术的应用将使灰合成的工业应用提高到一个更高的技术水平。