Process method for preparing compact CA2-CA6 complex-phase refractory clinker by one-step method

The invention relates to a process method for preparing a compact CA2-CA6 complex-phase fire-resistant clinker by a one-step method. The compact CA2-CA6 complex-phase fire-resistant clinker comprises, by weight, 38.69-86.36% of Al2O3, 10.64-20.31% of CaO and 1-3% of mixed micro powder of La2O3 and T...

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Bibliographic Details
Main Authors YIN XUEDONG, ZHANG BO, YIN XUELIANG, WANG QUANZHOU, DING HONGHAI, HAN TINGQUAN
Format Patent
LanguageChinese
English
Published 20.08.2021
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:The invention relates to a process method for preparing a compact CA2-CA6 complex-phase fire-resistant clinker by a one-step method. The compact CA2-CA6 complex-phase fire-resistant clinker comprises, by weight, 38.69-86.36% of Al2O3, 10.64-20.31% of CaO and 1-3% of mixed micro powder of La2O3 and TiO2 in a weight ratio of 1: 1. The relative density is 90.7-93.6%, and the apparent porosity is 3.3-4.8%. The preparation method comprises the following steps: (1) respectively grinding bauxite, limestone and the mixed micro powder of La2O3 and TiO2 in a weight ratio of 1: 1, and mixing; and (2) pressing the mixed material into green pellets, and then calcining to prepare the clinker. The mixed micro powder of La2O3 and TiO2 in a weight ratio of 1: 1 is used as a sintering promoter, and the mixed micro powder of La2O3 and TiO2 in a weight ratio of 1: 1 is dissolved in a CA2-CA6 phase to form a solid solution in the calcining process, so that the sintering activity of the CA2-CA6 phase is improved, and the compact C
Bibliography:Application Number: CN202110309226