Preparation and performance of loess/fly ash based ceramic membrane support

doi:10.3969/j.issn.1001-1935.2021.06.010

Refractories ›› 2021, Vol. 55 ›› Issue (6): 505-508.DOI: 10.3969/j.issn.1001-1935.2021.06.010

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Preparation and performance of loess/fly ash based ceramic membrane support

Li Bo¹⁾(), Tong Zhi²⁾(), Li Haihong²⁾, Xue Liudi²⁾, Zhang Jianxu²⁾

1) School of Urban Planning and Municipal Engineering,Xi’an Polytechnic University,Xi’an 710048,Shaanxi,China

Received:2021-04-16 Online:2021-12-15 Published:2021-12-10
Contact: Tong Zhi

黄土/粉煤灰基陶瓷膜支撑体的制备及性能研究

李波¹⁾(), 同帜²⁾(), 李海红²⁾, 薛刘蒂²⁾, 张健需²⁾

1)西安工程大学城市规划与市政工程学院　陕西西安 710048
2)西安工程大学环境与化学工程学院　陕西西安 710048

通讯作者: 同帜
作者简介:李波:男,1981年生,硕士,工程师。E-mail: 2696177387@qq.com
基金资助:
陕西省科技厅重点研发计划专项(2018GY-178);陕西省科技厅重点研发计划专项(2020GY-325);柯桥纺织产业创新研究院项目(19KQYB04)

Abstract

Abstract:

In order to reasonably control the preparation cost of ceramic membrane,the ceramic membrane support was prepared using the low-cost loess and fly ash as the raw materials,carboxymethyl cellulose as the binder,roll forming and atmospheric sintering.Effects of the loess/fly ash mass ratio,and the sintering temperature on the properties of the support were studied.The results show that the support with the loess/fly ash mass ratio of 6∶4,sintered at 1 100 ℃ for 2 h,has the water flux of 1 832 L·m^-2·h^-1,and the modulus of rupture of 28.3 MPa.

Key words: ceramic membrane support, loess, fly ash, sintering schedule, water flux

摘要：

为合理控制陶瓷膜的制备成本,选用成本低的黄土和粉煤灰作为原料,选用羧甲基纤维素为黏结剂,采用滚压成型、常压烧结制备了陶瓷膜支撑体。研究黄土和粉煤灰的质量比和烧结温度对支撑体性能的影响。结果发现:当黄土与粉煤灰掺杂质量比为6∶4,烧结至1 100 ℃并保温2 h时为最优制备条件,此时支撑体水通量为1 832 L·m^-2·h^-1,抗折强度为28.3 MPa。

关键词: 陶瓷膜支撑体, 黄土, 粉煤灰, 烧结制度, 水通量

CLC Number:

X705

Li Bo, Tong Zhi, Li Haihong, Xue Liudi, Zhang Jianxu. Preparation and performance of loess/fly ash based ceramic membrane support[J]. Refractories, 2021, 55(6): 505-508.

李波, 同帜, 李海红, 薛刘蒂, 张健需. 黄土/粉煤灰基陶瓷膜支撑体的制备及性能研究[J]. 耐火材料, 2021, 55(6): 505-508.

Figures/Tables 8

Table 1 Chemical composition of loess/fly ash

原料	w/%
原料	SiO₂	Al₂O₃	CaO	Fe₂O₃	K₂O	MgO	TiO₂
黄土	56.7	15.6	12.2	6.86	3.54	2.37	0.92
粉煤灰	47.36	30.85	6.82	10.8	0.26	0.91	0.38

Fig.1 TG-DTG curves of support

Fig.2 Effects of loess/fly ash ratio and sintering temperature on water flux and MOR of support

Fig.3 Effect of sintering temperature on linear shrinkage of support with loess/fly ash mass ratio of 6∶4

Fig.4 Effect of sintering temperature on acid/alkali corrosion of support

Fig.5 XRD graph of support

Fig.6 SEM photo of support

Fig.7 Pore size distribution of support

References 10

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Preparation and performance of loess/fly ash based ceramic membrane support

黄土/粉煤灰基陶瓷膜支撑体的制备及性能研究

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