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author:

Yang, Jinbiao (Yang, Jinbiao.) [1] | Liu, Haiyan (Liu, Haiyan.) [2] | Diao, Haiju (Diao, Haiju.) [3] | Li, Bingshuang (Li, Bingshuang.) [4] | Yue, Yuanyuan (Yue, Yuanyuan.) [5] (Scholars:岳源源) | Bao, Xiaojun (Bao, Xiaojun.) [6] (Scholars:鲍晓军)

Indexed by:

EI Scopus SCIE

Abstract:

Synthesis of zeolites or zeolite/clay composites from natural aluminosilicate minerals has received extensive attention because of its great usefulness in greening the zeolite manufacturing process, in which effective activation of natural aluminosilicate minerals is crucially important. Herein, we present an energy saving and green approach, the quasi-solid-phase activation method, to efficiently destruct the natural minerals under the conditions of a temperature as low as 100 degrees C and an activation time as short as 30 min. Our strategy consists of the following three steps: (1) preparation of a mixture of a natural kaolin mineral, NaOH, and water by kneading, (2) extruding of the mixture into sticks, and (3) low-temperature calcination of the stick, featured by the combined use of mechanochemical actions. The results showed that 84.7% Si species and 69.0% Al species in the kaolin mineral underwent a large degree of depolymerization in the kneading extruding steps, and following calcination at 100 degrees C resulted in the complete depolymerization of the kaolin mineral to monomer orthosilicate anions (Q) and tetra coordinated aluminum (A(IV)) species, which are highly active silica and alumina sources for synthesizing aluminosilicate zeolites. Using the activated kaolin mineral as a starting material, pure-phase NaY and NaA zeolites have been successfully synthesized.

Keyword:

Kaolin mineral Low-temperature calcination Mechanical treatment NaA NaY Quasi-solid-phase activation

Community:

  • [ 1 ] [Yang, Jinbiao]China Univ Petr, State Key Lab Heavy Oil Proc, 18 Fuxue Rd, Beijing 102249, Peoples R China
  • [ 2 ] [Liu, Haiyan]China Univ Petr, State Key Lab Heavy Oil Proc, 18 Fuxue Rd, Beijing 102249, Peoples R China
  • [ 3 ] [Diao, Haiju]China Univ Petr, State Key Lab Heavy Oil Proc, 18 Fuxue Rd, Beijing 102249, Peoples R China
  • [ 4 ] [Li, Bingshuang]China Univ Petr, State Key Lab Heavy Oil Proc, 18 Fuxue Rd, Beijing 102249, Peoples R China
  • [ 5 ] [Yue, Yuanyuan]Fuzhou Univ, Coll Chem Engn, Natl Engn Res Ctr Chem Fertilizer, 2 Xueyuan Rd, Fuzhou 350116, Peoples R China
  • [ 6 ] [Bao, Xiaojun]Fuzhou Univ, Coll Chem Engn, Natl Engn Res Ctr Chem Fertilizer, 2 Xueyuan Rd, Fuzhou 350116, Peoples R China

Reprint 's Address:

  • 鲍晓军

    [Bao, Xiaojun]Fuzhou Univ, Coll Chem Engn, Natl Engn Res Ctr Chem Fertilizer, 2 Xueyuan Rd, Fuzhou 350116, Peoples R China

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Related Keywords:

Source :

ACS SUSTAINABLE CHEMISTRY & ENGINEERING

ISSN: 2168-0485

Year: 2017

Issue: 4

Volume: 5

Page: 3233-3242

6 . 1 4

JCR@2017

7 . 1 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:226

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 30

SCOPUS Cited Count: 37

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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