Title:
METHOD FOR PREPARING ALLOY IRON AND CEMENT MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/073427
Kind Code:
A1
Abstract:
The present invention relates to the field of resource recovery of solid wastes and provides a method for preparing alloy iron and a cement material. According to the present invention, a synergistic effect of carbon, calcium, and heavy metal components in garbage incineration fly ash and iron, aluminum, and silicon components in red mud is efficiently utilized to finally obtain the alloy iron and the cement material and wastes are treated by wastes; components of the two wastes are complementary, and carbon in the garbage incineration fly ash can provide a reduction agent for reduction, so that iron minerals in the red mud are promoted to be reduced into metal iron; the metal iron is formed and siderophile heavy metal elements in the garbage incineration fly ash are also promoted to enter an iron phase. Moreover, the resource recovery of the solid wastes is achieved by means of the cement material formed by A2O3 and SiO2 in the red mud and CaO in the garbage incineration fly ash, so that resource recovery comprehensive utilization of the two important dangerous wastes of the garbage incineration fly ash and the red mud, which need to be urgently treated in our country, and a lot of industrial solid wastes can be achieved, and a comprehensive utilization rate of resources is improved.
Inventors:
GENG CHAO (CN)
LIU JIANGUO (CN)
WU SHICHAO (CN)
YU SHUYAO (CN)
LIU JIANGUO (CN)
WU SHICHAO (CN)
YU SHUYAO (CN)
Application Number:
PCT/CN2018/115888
Publication Date:
April 16, 2020
Filing Date:
November 16, 2018
Export Citation:
Assignee:
UNIV TSINGHUA (CN)
International Classes:
C04B7/26; B03C1/02; B09B3/00; C22B1/02
Foreign References:
CN108118141A | 2018-06-05 | |||
CN101275182A | 2008-10-01 | |||
US4045537A | 1977-08-30 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
Download PDF:
Previous Patent: CHIP ABNORMALITY DETECTION CIRCUIT AND CHIP ABNORMALITY DETECTION DEVICE
Next Patent: KEY SWITCH SUPPLEMENTAL STRUCTURE
Next Patent: KEY SWITCH SUPPLEMENTAL STRUCTURE