Open AccessMagnesium-Containing Slurry as Technogenic Alternative Raw Material for Magnesium Oxychloride Cement
Author(s) -
И. Н. Липунов,
И. Г. Первова
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/272/3/032032
Subject(s) - magnesium , slurry , cement , raw material , materials science , metallurgy , chloride , metal , magnesium phosphate , chemistry , composite material , organic chemistry
It has been shown experimentally that a waste of magnesium metal production is a realistic alternative to naturally occurring cement raw materials. The waste is the carnallite slurry forming during the chlorination stage. The slurry contains magnesium oxide (MgO) and magnesium chloride (MgCl 2 ) in a mass ratio close to their optimal ratio when preparing Sorel cement. It is found that the magnesium oxide in the slurry is highly reactive. MgO extracted from the slurry and MgCl 2 solution are mixed forming homogeneous magnesium oxychloride cement (MOC) paste in which bonding crystalline structures typical for Sorel cement are formed during hardening.