Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for catalytic synthesis of mullite product from coal gangue
The invention discloses a method for catalytically synthesizing a mullite product from coal gangue. The method comprises the following steps: step 1, preparing raw materials; step 2, crushing and iron removal; step 3, proportioning; step 4, compression molding; step 5, drying; and 6, sintering to obtain the mullite product. The solid waste coal gangue generated in the coal mining and washing process and the catalyst separated in the heavy oil lightening process in the oil refining industry are used for catalysis, the silica-alumina ratio is changed by adjusting the ratio of the two solid wastes in a mode of combining the two solid wastes, and the sintering temperature and the heat preservation time are adjusted; the green mullite product with high mullite phase, good crystal development, high whiteness and excellent mechanical properties is obtained, a new technical approach is provided for comprehensive utilization of industrial wastes, the environmental problems of land area occupation, air and soil pollution and the like caused by accumulation of a large amount of two solid wastes are solved, and the green mullite product has good application prospects. And the economic benefit and the social benefit are improved.
本发明公开了一种煤矸石催化合成莫来石制品的方法，包括以下步骤：步骤一、原料准备；步骤二、破碎、除铁；步骤三、配料；步骤四、压制成型；步骤五、干燥；步骤六、烧结，得到莫来石制品。本发明利用煤炭开采和洗选过程中产生的固体废弃物煤矸石，炼油工业重油轻质化过程中分离出的催化剂进行催化，采用两种固废相结合的方式通过调整两者之间的配比改变硅铝比，调整烧结温度和保温时间，获得具有高莫来石相、晶体发育良好、高白度以及力学性能优异的绿色莫来石制品，本发明为工业废弃物的综合利用提供了新的技术途径，解决了两种固废大量堆积造成土地面积占有、空气和土壤污染等环境问题，提高了经济效益和社会效益。
Method for catalytic synthesis of mullite product from coal gangue
The invention discloses a method for catalytically synthesizing a mullite product from coal gangue. The method comprises the following steps: step 1, preparing raw materials; step 2, crushing and iron removal; step 3, proportioning; step 4, compression molding; step 5, drying; and 6, sintering to obtain the mullite product. The solid waste coal gangue generated in the coal mining and washing process and the catalyst separated in the heavy oil lightening process in the oil refining industry are used for catalysis, the silica-alumina ratio is changed by adjusting the ratio of the two solid wastes in a mode of combining the two solid wastes, and the sintering temperature and the heat preservation time are adjusted; the green mullite product with high mullite phase, good crystal development, high whiteness and excellent mechanical properties is obtained, a new technical approach is provided for comprehensive utilization of industrial wastes, the environmental problems of land area occupation, air and soil pollution and the like caused by accumulation of a large amount of two solid wastes are solved, and the green mullite product has good application prospects. And the economic benefit and the social benefit are improved.
本发明公开了一种煤矸石催化合成莫来石制品的方法，包括以下步骤：步骤一、原料准备；步骤二、破碎、除铁；步骤三、配料；步骤四、压制成型；步骤五、干燥；步骤六、烧结，得到莫来石制品。本发明利用煤炭开采和洗选过程中产生的固体废弃物煤矸石，炼油工业重油轻质化过程中分离出的催化剂进行催化，采用两种固废相结合的方式通过调整两者之间的配比改变硅铝比，调整烧结温度和保温时间，获得具有高莫来石相、晶体发育良好、高白度以及力学性能优异的绿色莫来石制品，本发明为工业废弃物的综合利用提供了新的技术途径，解决了两种固废大量堆积造成土地面积占有、空气和土壤污染等环境问题，提高了经济效益和社会效益。
Method for catalytic synthesis of mullite product from coal gangue
一种煤矸石催化合成莫来石制品的方法
TONG LIJIN (Autor:in) / QUAN ZONGGANG (Autor:in) / WU YONG (Autor:in) / CHEN YUANYUAN (Autor:in) / MA RONG (Autor:in) / LIU RONG (Autor:in) / WANG KEYING (Autor:in)
07.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Mullite prepared from coal gangue and preparation method thereof
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