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Preparation method for phosphorous slag Portland cement clinker
The invention discloses a preparation method for phosphorous slag Portland cement clinker. The clinker is mainly prepared by mixing limestone, sulfuric acid slag, river sand, phosphorus slag and tailings according to a weight ratio of 75-80: 5.5-6.5: 1.8-2.8: 9-13: 1-4.5, wherein the sulfur acid slag is industrial waste of sulfuric acid plants; the phosphorus slag is water-quenched waste slag discharged during preparation of phosphorus by using an electric-furnace sublimation method; and the tailings are residual tailings of mining industry and contain the trace elements Pb and Zn. By using industrial wastes--the phosphorus slag, the sulfuric acid slag and the tailings as raw materials to prepare low environmental coincidence type phosphate cement clinker, the preparation method provided by the invention overcomes the problem of resource shortage of high-quality limestone, clay and iron ore, provides an ideal way for the treatment of industrial wastes, saves resources and energy sources, reduces emission of pollutants and is favorable for protecting environment and reducing cost.
Preparation method for phosphorous slag Portland cement clinker
The invention discloses a preparation method for phosphorous slag Portland cement clinker. The clinker is mainly prepared by mixing limestone, sulfuric acid slag, river sand, phosphorus slag and tailings according to a weight ratio of 75-80: 5.5-6.5: 1.8-2.8: 9-13: 1-4.5, wherein the sulfur acid slag is industrial waste of sulfuric acid plants; the phosphorus slag is water-quenched waste slag discharged during preparation of phosphorus by using an electric-furnace sublimation method; and the tailings are residual tailings of mining industry and contain the trace elements Pb and Zn. By using industrial wastes--the phosphorus slag, the sulfuric acid slag and the tailings as raw materials to prepare low environmental coincidence type phosphate cement clinker, the preparation method provided by the invention overcomes the problem of resource shortage of high-quality limestone, clay and iron ore, provides an ideal way for the treatment of industrial wastes, saves resources and energy sources, reduces emission of pollutants and is favorable for protecting environment and reducing cost.
Preparation method for phosphorous slag Portland cement clinker
WANG CHUANBO (author) / CUI KAI (author) / WANG FENGMIN (author) / TIAN BIN (author) / DENG GUOWEI (author)
2015-06-10
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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