Overview of Current Phosphoric Acid Production Processes and a New Idea of Kiln Method

Title:Overview of Current Phosphoric Acid Production Processes and a New Idea of Kiln Method

Volume: 18 Issue: 3

Author(s): Guangya Zheng, Jupei Xia* Zhengjie Chen*

Affiliation:

• Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan,China

• Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan,China

Keywords: CDK processes, Kiln method, phosphoric acid, phosphorus ores, thermal methods, wet process.

Abstract: China primarily contains medium and low-grade phosphorus ores that are used to produce phosphoric acid. Here, we provide an overview of phosphoric acid production processes, including wet, thermal, and Kiln methods, as well as the fundamental principles, major equipment, and technological aspects of each process. Progress in the Kiln method using low-grade phosphate rock is described, which involves the KPA and CDK processes. The literature shows that the addition of admixtures adds great competitiveness to Kiln phosphate production methods and has considerable development prospects.

Cite this article as:

Zheng Guangya , Xia Jupei *, Chen Zhengjie *, Overview of Current Phosphoric Acid Production Processes and a New Idea of Kiln Method, Mini-Reviews in Organic Chemistry 2021; 18 (3) . https://dx.doi.org/10.2174/1570193X17999200719134034