Method for preparing portland cement featuring early strength, low shrinkage, and low heat

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United States of America Patent

PATENT NO 12030814
APP PUB NO 20240067566A1
SERIAL NO

18195960

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Abstract

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A method for preparing Portland cement includes: respectively weighing iron slag, copper slag, vanadium slag, and nickel slag and grinding, to yield prefabricated iron slag, prefabricated copper slag, prefabricated vanadium slag, and prefabricated nickel slag; weighing mica and kaolinite, mixing, and grinding to obtain aluminous raw materials; evenly mixing the prefabricated iron slag and the aluminous raw materials, and calcining, to yield an iron-aluminum eutectic mineral; weighing the marble, fluorite, dolomite, and quartz, evenly mixing the marble, fluorite, dolomite, and quartz with the prefabricated copper slag, prefabricated vanadium slag, and prefabricated nickel slag to yield a first mixture; grinding the iron-aluminum eutectic mineral to yield powders, and calcining a second mixture of the first mixture and the powders, to yield the cement clinker; and cooling the cement clinker, and grinding a third mixture of the cooled cement clinker and the gypsum, to yield the Portland cement.

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Patent Owner(s)

Patent OwnerAddress
CHINA BUILDING MATERIALS ACADEMY CO LTDNO 1 GUANZHUANGDONGLI CHAOYANG DISTRICT BEIJING 100024 100024
CHINA NATIONAL BUILDING MATERIAL GROUP CO LTDBLOCK B GUOHAI PLAZA NO 17 FUXING ROAD HAIDIAN DISTRICT BEIJING 100036

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
An, Xiaopeng Beijing, CN 1 0
Huang, Wen Beijing, CN 81 912
Shen, Xin Beijing, CN 38 2603
Wang, Min Beijing, CN 957 5670
Wen, Zhaijun Beijing, CN 5 2
Yao, Guang Beijing, CN 9 45
Yu, Yang Beijing, CN 361 2035
Zhang, Kunyue Beijing, CN 2 0
Zhi, Xiao Beijing, CN 3 0

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