Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Coal gasification fine slag-based inorganic ceramic membrane and preparation method thereof
The invention discloses a coal gasification fine slag-based inorganic ceramic membrane and a preparation method thereof, and belongs to the field of inorganic membrane preparation. The invention provides a preparation method of a coal gasification fine slag-based inorganic ceramic membrane, a low-cost raw material coal gasification fine slag is used as a main raw material to replace or partially replace expensive alpha-Al2O3 powder, a large amount of residual carbon (accounting for about 20% or more of the total amount) in the coal gasification fine slag is subjected to weightlessness in the sintering process to form CO2, the CO2 escapes to serve as a pore-forming agent, the pore-forming agent is used as a pore-forming agent, the pore-forming agent is used as a pore-forming agent, and the pore-forming agent is used as a pore-forming agent. The preparation cost is greatly reduced; the preparation cost is further reduced by reducing the sintering temperature. According to the coal gasification fine slag-based inorganic ceramic membrane provided by the invention, the permeability of the prepared ceramic membrane is remarkably improved, the overflowing flux is improved, and meanwhile, the properties such as the strength and the acid-base corrosion rate required by the ceramic membrane in the filtering process are ensured. Wide application prospects are realized in the fields of sewage treatment, water body purification and gas dust removal.
本发明公开了一种煤气化细渣基无机陶瓷膜及制备方法，属于无机膜制备领域。本发明提供一种煤气化细渣基无机陶瓷膜的制备方法，以低成本原材料煤气化细渣为主要原料，代替或部分代替价格昂贵的α‑Al2O3粉，煤气化细渣中的大量残碳(约占总量的20％甚至更多)在烧结过程中失重形成CO2，CO2的逸出充当了造孔剂的作用，使得制备成本大大降低；本发明通过降低烧结温度，进一步的降低制备成本。本发明提供一种煤气化细渣基无机陶瓷膜，本发明制备得到的陶瓷膜显著提高了膜的渗透性，过流通量得到提升的同时，保证了陶瓷膜在过滤过程中所需的陶瓷膜强度、酸碱腐蚀率等性能。在污水处理、水体净化及气体除尘领域具有广阔的应用前景。
Coal gasification fine slag-based inorganic ceramic membrane and preparation method thereof
The invention discloses a coal gasification fine slag-based inorganic ceramic membrane and a preparation method thereof, and belongs to the field of inorganic membrane preparation. The invention provides a preparation method of a coal gasification fine slag-based inorganic ceramic membrane, a low-cost raw material coal gasification fine slag is used as a main raw material to replace or partially replace expensive alpha-Al2O3 powder, a large amount of residual carbon (accounting for about 20% or more of the total amount) in the coal gasification fine slag is subjected to weightlessness in the sintering process to form CO2, the CO2 escapes to serve as a pore-forming agent, the pore-forming agent is used as a pore-forming agent, the pore-forming agent is used as a pore-forming agent, and the pore-forming agent is used as a pore-forming agent. The preparation cost is greatly reduced; the preparation cost is further reduced by reducing the sintering temperature. According to the coal gasification fine slag-based inorganic ceramic membrane provided by the invention, the permeability of the prepared ceramic membrane is remarkably improved, the overflowing flux is improved, and meanwhile, the properties such as the strength and the acid-base corrosion rate required by the ceramic membrane in the filtering process are ensured. Wide application prospects are realized in the fields of sewage treatment, water body purification and gas dust removal.
本发明公开了一种煤气化细渣基无机陶瓷膜及制备方法，属于无机膜制备领域。本发明提供一种煤气化细渣基无机陶瓷膜的制备方法，以低成本原材料煤气化细渣为主要原料，代替或部分代替价格昂贵的α‑Al2O3粉，煤气化细渣中的大量残碳(约占总量的20％甚至更多)在烧结过程中失重形成CO2，CO2的逸出充当了造孔剂的作用，使得制备成本大大降低；本发明通过降低烧结温度，进一步的降低制备成本。本发明提供一种煤气化细渣基无机陶瓷膜，本发明制备得到的陶瓷膜显著提高了膜的渗透性，过流通量得到提升的同时，保证了陶瓷膜在过滤过程中所需的陶瓷膜强度、酸碱腐蚀率等性能。在污水处理、水体净化及气体除尘领域具有广阔的应用前景。
Coal gasification fine slag-based inorganic ceramic membrane and preparation method thereof
一种煤气化细渣基无机陶瓷膜及制备方法
YANG JING (Autor:in) / WANG PEITAO (Autor:in)
28.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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