Measuring and Modeling Corrosion in Hydrometallurgical Process Systems

湿法冶金工艺系统中的腐蚀测量和建模

基本信息

批准号：
RGPIN-2016-03959
负责人：
Evitts, Richard
金额：
$ 2.04万
依托单位：
University of Saskatchewan
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2019
资助国家：
加拿大
起止时间：
2019-01-01 至 2020-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=682544
关键词：
Measuring Modeling Corrosion Hydrometallurgical Process

项目摘要

Corrosion of metals is a very common and costly problem and it is the most frequent cause of plant downtime in the Chemical Processing Industries (CPI). For most people corrosion is an unsightly nuisance but for CPI it causes equipment failure, leaks and contamination, and these can cause significant heath and environmental issues. A great deal of this corrosion damage can be prevented when the reasons its occurrence are understood and appropriate measures are undertaken.***Part of CPI is focused on mineral processing, of which Canada is a global leader. Canada has world-class reserves of minerals such as uranium and potash and its economy relies, to a great extent, on the extraction and processing of these materials. Canada is the second largest producer of uranium in the world and the world's largest mine is located in Saskatchewan. This research project is focused on improving the understanding of and developing mitigation technology for corrosion problems in uranium ore processing systems.******The initial stages of processing uranium into usable material involve extraction by using roasting and acid leaching technology. Acids are naturally corrosive and equipment is protected from them by using rubber-like barriers. However, sometimes these barriers becomes damaged leaving the equipment unprotected. This research is focused on determining the mechanisms by which the acidic solutions, used in the leaching process, attack the metal. It will involve carefully performing experiments that mimic the breakdown of the materials as well as creating mathematical models that describe the process. This will allow engineers and scientists to create better ways of protecting the equipment. This five-year project will elucidate the mechanism by which the metal is attacked, determine the rate of corrosion attack and develop predictive models that can be used in “what if” situations during the design of new and retrofit of existing equipment.********

在化学过程中，金属的腐蚀是一个非常昂贵的问题（CPI）。 CPI的一部分是矿物质的问题，加拿大是全球领导者。加拿大是世界上铀的第二大生产商，也是萨斯喀彻温省最大的矿山。将铀加入可用的材料涉及提取，并且CID渗出技术会损坏。材料与奶油一样，描述了这一过程。预测模型，如果“在现有现有良好的新设计和改造期间的位置。************************************************************************************************************************************************