High-value utilisation of PGM-containing residual oil: Recovery of inorganic acids, potassium, and PGMs using a zero-waste approach

被引：3

作者：

Liu, Minghui ^{[1
,2
]}

Zhao, Yutong ^{[1
,3
]}

Cheng, Quanzhong ^{[1
,2
]}

Tian, Bingyang ^{[4
]}

Tian, Ming ^{[1
,2
]}

Zhang, Jian ^{[1
,2
]}

Zhang, Hui ^{[1
,2
,5
]}

Xue, Tianyan ^{[1
,2
]}

Qi, Tao ^{[1
,2
,5
]}

机构：

[1] Univ Chinese Acad Sci, Sch Chem Engn, Beijing 101408, Peoples R China

[2] Chinese Acad Sci, Inst Proc Engn, Natl Engn Res Ctr Green Recycling Trateg Met Resou, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Lab, Key Lab Fuel Cells, Dalian 116023, Peoples R China

[4] GRINM Grp Corp Ltd, Natl Engn Lab Biohydrometallurgy, Beijing 101407, Peoples R China

[5] Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL MANAGEMENT | 2023年 / 336卷

关键词：

PGMs; Oil refining waste; Zero-waste process; Spectral interference; Residual oil; PLATINUM-GROUP METALS; SPENT CATALYSTS; MANAGEMENT; IDENTIFICATION;

D O I：

10.1016/j.jenvman.2023.117599

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Residual oil containing platinum group metals (PGMs), which is under-researched, can easily pose resource waste and environmental risks. PGMs feature as scarce strategic metals, and inorganic acids and potassium salts are also considered valuable. An integrated process for the harmless treatment and recovery of useful resources from residual oil is proposed herein. This work developed a zero-waste process based on the study of the main components and characteristics of the PGM-containing residual oil. The process consists of three modules: pretreatment for phase separation, liquid-phase resource utilisation, and solid-phase resource utilisation. Separating the residual oil into liquid and solid phases allows for the maximum recovery of valuable components. However, concerns about the accurate determination of valued components emerged. Findings revealed that Fe and Ni are highly susceptible to spectral interference in the PGMs test when using the inductively coupled plasma method. After studying 26 PGM emission lines, Ir 212.681 nm, Pd 342.124 nm, Pt 299.797 nm, and Rh 343.489 nm were reliably identified. Finally, formic acid (81.5 g/t), acetic acid (117.2 kg/t), propionic acid (291.9 kg/t), butyric acid (3.6 kg/t), potassium salt (553.3 kg/t), Ir (27.8 g/t), Pd (10960.0 g/t), Pt (193.1 g/t), and Rh (109.8 g/t) were successfully obtained from the PGM-containing residual oil. This study provides a helpful reference for the determination of PGM concentrations and high-value utilisation of PGM-containing residual oil.

引用

页数：9