Preparation and properties of a low-cost porous ceramic support from low-grade palygorskite clay and silicon-carbide with vanadium pentoxide additives

Zhaoru Fan; Shouyong Zhou; Ailian Xue; Meisheng Li; Yan Zhang; Yijiang Zhao; Weihong Xing

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Preparation and properties of a low-cost porous ceramic support from low-grade palygorskite clay and silicon-carbide with vanadium pentoxide additives

Materials and Product Engineering | Updated：2026-01-06

- Preparation and properties of a low-cost porous ceramic support from low-grade palygorskite clay and silicon-carbide with vanadium pentoxide additives
- Preparation and properties of a low-cost porous ceramic support from low-grade palygorskite clay and silicon-carbide with vanadium pentoxide additives
- 中国化学工程学报（英文版） 2021年29卷第1期页码：417-425
- Affiliations：
  
  1. Jiangsu Engineering Laboratory for Environmental Functional Materials, Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University,Huai'an,China,223300
  2. State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University,Nanjing,China,210009
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2021
- Accepted：
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Zhaoru Fan, Shouyong Zhou, Ailian Xue, 等. Preparation and properties of a low-cost porous ceramic support from low-grade palygorskite clay and silicon-carbide with vanadium pentoxide additives[J]. 中国化学工程学报（英文版）, 2021,29(1):417-425.

Zhaoru Fan, Shouyong Zhou, Ailian Xue, Meisheng Li, Yan Zhang, Yijiang Zhao, Weihong Xing. Preparation and properties of a low-cost porous ceramic support from low-grade palygorskite clay and silicon-carbide with vanadium pentoxide additives[J]. Chinese Journal of Chemical Engineering, 2021, 29(1): 417-425.
Zhaoru Fan, Shouyong Zhou, Ailian Xue, 等. Preparation and properties of a low-cost porous ceramic support from low-grade palygorskite clay and silicon-carbide with vanadium pentoxide additives[J]. 中国化学工程学报（英文版）, 2021,29(1):417-425. DOI：

Zhaoru Fan, Shouyong Zhou, Ailian Xue, Meisheng Li, Yan Zhang, Yijiang Zhao, Weihong Xing. Preparation and properties of a low-cost porous ceramic support from low-grade palygorskite clay and silicon-carbide with vanadium pentoxide additives[J]. Chinese Journal of Chemical Engineering, 2021, 29(1): 417-425. DOI：

摘要

Abstract

A low-cost porous ceramic support was prepared from low-grade palygorskite clay (LPGS) and silicon carbide (SiC) with vanadium pentoxide (V

) additives by a dry-press forming method and sintering. The effects of SiC-LPGS ratio

pressing pressure

carbon powder pore-forming agent and V

sintering additives on the microstructure and performance of the supports were investigated. The addition of an appropriate amount of SiC to the LPGS can prevent excessive shrinkage of the support during sintering

and increase the mechanical strength and open porosity of the supports. The presence of SiC (34.4%) led to increases in the open porosity and mechanical strength of 40.43% ± 0.21% and (17.76 ± 0.51) MPa

respectively

after sintering at 700 ℃ for 3 h. Because of its low melting point

can melt to liquid during sintering

which increases the mechanical strength of the supports and retains the porosity. Certainly

this can also encourage efficient use of the LPGS and avoid wasting resources.

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