活性白土吸附FCC催化剂胶渣中稀土元素离子的研究

doi:10.11962/1006-4990.2019-0400

Inorganic Chemicals Industry ›› 2020, Vol. 52 ›› Issue (5): 86-89.doi: 10.11962/1006-4990.2019-0400

• Catalytic Materials • Previous Articles Next Articles

Adsorption of rare earth element ions on FCC catalyst slag by activated clay

Liu Baolei^1,²,Cao Wenwen²,Wang Guosheng²()

1.College of Petrochemical Engineering,Jilin University of Chemical Technology,Jilin 132022,China;
2.College of Chemical Engineering,Shenyang University of Chemical Technology

Received:2019-11-24 Online:2020-05-10 Published:2020-05-21
Contact: Wang Guosheng E-mail:wgsh-lyc@163.com

Abstract

Abstract:

Recovery of the useful elements in FCC catalyst slag is not only realizes the recycling and utilization of resource,but also eliminates environmental pollution.Purified clay was prepared with natural bentonite as raw material,and then the activated clay was prepared.Rhenium ions in catalyst slag were adsorbed with purified clay and activated clay as adsorbents,and adsorption conditions and properties were investigated.The result indicated that the adsorption capacity of rhenium ion in the slag solution of activated clay was higher than that of purified clay,as adsorption dose of active clay was 0.9 g,initial mass concentration was 11 mg/L,solution pH=4.0,the adsorbing temperature was 25 ℃,then the adsorption rate of rhenium ion on active clay reached 93%.This study provided technical support for the recovery and utilization of useful elements in FCC catalyst production.

Key words: rare earth ions, FCC catalyst slag, activated clay, rhenium ions

CLC Number:

TQ133.3

Liu Baolei,Cao Wenwen,Wang Guosheng. Adsorption of rare earth element ions on FCC catalyst slag by activated clay[J]. Inorganic Chemicals Industry, 2020, 52(5): 86-89.

Figures/Tables 8

References 14

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种类	w（O）	w（Na）	w（Al）	w（Si）	w（S）	w（Cl）	w（Ca）
提纯土	51.84	4.92	9.09	14.12	0.00	1.12	6.02
活性土	57.58	0.36	8.15	14.97	3.19	0.28	5.65
种类	w（Cu）	w（Zr）	w（Mo）	w（La）	w（Ce）	w（Re）
提纯土	0.85	0.00	7.05	1.96	1.97	1.07
活性土	2.32	2.46	0.00	0.67	1.14	3.22

T/K	Langmuir模型			Freundlich模型
T/K	Q_max/ （mg·L^-1）	K_L / （L·mg^-1）	R²	K_F / （mg^1-nLn·g^-1）	n	R²
298.15	11.60	2.99	0.993	10.59	1.70	0.991

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Adsorption of rare earth element ions on FCC catalyst slag by activated clay

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