{"title":"White phosphorus production by a carbothermic reduction of upcycled crude phosphoric acid","authors":"","doi":"10.1016/j.resconrec.2024.107868","DOIUrl":null,"url":null,"abstract":"<div><p>White phosphorous is a critically important material in manufacturing semiconductors and advanced pharmaceuticals. However, white phosphorus is produced by only four countries using the huge energy-consuming electric arc furnace process. These four countries have resorted to banning or restricting their exports causing a supply risk for white phosphorus for many industrialized countries.</p><p>To meet the white phosphorous supply risk, the never-existing white phosphorous production process has been developed by applying the carbothermic reduction of P<sub>2</sub>O<sub>5</sub> gas provided by the thermal decomposition of phosphoric acid. The novel process can produce semiconductor-grade high-purity white phosphorous from crude phosphoric acid recovered from secondary phosphorous resources.</p><p>By supplying phosphoric acid in the form of small droplets, we have achieved continuous operation of white phosphorus production, which was previously impossible, and brings production efficiency to an industrial level. This process could significantly reduce the supply risk for countries that rely entirely on imported white phosphorus.</p></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":null,"pages":null},"PeriodicalIF":11.2000,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0921344924004610/pdfft?md5=4cb35ff59928bb618d8cecda01018344&pid=1-s2.0-S0921344924004610-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Resources Conservation and Recycling","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0921344924004610","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
引用次数: 0
Abstract
White phosphorous is a critically important material in manufacturing semiconductors and advanced pharmaceuticals. However, white phosphorus is produced by only four countries using the huge energy-consuming electric arc furnace process. These four countries have resorted to banning or restricting their exports causing a supply risk for white phosphorus for many industrialized countries.
To meet the white phosphorous supply risk, the never-existing white phosphorous production process has been developed by applying the carbothermic reduction of P2O5 gas provided by the thermal decomposition of phosphoric acid. The novel process can produce semiconductor-grade high-purity white phosphorous from crude phosphoric acid recovered from secondary phosphorous resources.
By supplying phosphoric acid in the form of small droplets, we have achieved continuous operation of white phosphorus production, which was previously impossible, and brings production efficiency to an industrial level. This process could significantly reduce the supply risk for countries that rely entirely on imported white phosphorus.
期刊介绍:
The journal Resources, Conservation & Recycling welcomes contributions from research, which consider sustainable management and conservation of resources. The journal prioritizes understanding the transformation processes crucial for transitioning toward more sustainable production and consumption systems. It highlights technological, economic, institutional, and policy aspects related to specific resource management practices such as conservation, recycling, and resource substitution, as well as broader strategies like improving resource productivity and restructuring production and consumption patterns.
Contributions may address regional, national, or international scales and can range from individual resources or technologies to entire sectors or systems. Authors are encouraged to explore scientific and methodological issues alongside practical, environmental, and economic implications. However, manuscripts focusing solely on laboratory experiments without discussing their broader implications will not be considered for publication in the journal.