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A platform for research: civil engineering, architecture and urbanism
Method for preparing magnesium oxysulfate binding material by using titanium dioxide production waste acid
The invention belongs to the field of industry waste acid treatment and cyclic utilization, and particularly relates to a method for preparing a magnesium oxysulfate binding material by using titanium dioxide production waste acid. The technical problems to be solved are that the reclamation of the titanium dioxide production waste acid is not thorough, the produced waste residues and waste water cannot be digested internally. The technical scheme provided by the invention for solving the problems is that the method for preparing the magnesium oxysulfate binding material by using the titanium dioxide production waste acid is provided, and the method comprises the following steps: A, using magnesium oxide to neutralize the titanium dioxide production waste acid, so as to obtain a magnesium sulfate solution; B, adding a transforming agent into the magnesium sulfate solution, so as to obtain a mixture; C, filtering the mixture to obtain a filter cake, drying and smashing the filter cake to obtain the magnesium oxysulfate binding material. The method provided by the invention has the advantages of no waste residues and wastewater discharge, and a new choice is provided for the comprehensive utilization of the titanium dioxide production waste acid.
Method for preparing magnesium oxysulfate binding material by using titanium dioxide production waste acid
The invention belongs to the field of industry waste acid treatment and cyclic utilization, and particularly relates to a method for preparing a magnesium oxysulfate binding material by using titanium dioxide production waste acid. The technical problems to be solved are that the reclamation of the titanium dioxide production waste acid is not thorough, the produced waste residues and waste water cannot be digested internally. The technical scheme provided by the invention for solving the problems is that the method for preparing the magnesium oxysulfate binding material by using the titanium dioxide production waste acid is provided, and the method comprises the following steps: A, using magnesium oxide to neutralize the titanium dioxide production waste acid, so as to obtain a magnesium sulfate solution; B, adding a transforming agent into the magnesium sulfate solution, so as to obtain a mixture; C, filtering the mixture to obtain a filter cake, drying and smashing the filter cake to obtain the magnesium oxysulfate binding material. The method provided by the invention has the advantages of no waste residues and wastewater discharge, and a new choice is provided for the comprehensive utilization of the titanium dioxide production waste acid.
Method for preparing magnesium oxysulfate binding material by using titanium dioxide production waste acid
MEI WEIDONG (author)
2015-10-07
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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