... the main diffraction maxima (A) of the phases present.
B= brushite; G= gypsum; Q= quartz.
68
Fig. 4. SEM image of mineral chukhrovite. Scale bar: 10 um.
chukhrovite (Caa sAL(SOx)F;·12H>O) (Fig. 4), according to the
reaction in Eq. (8):
13Cao(POa)6F2 + 123H»SOu, + 266H>O + 4AP+
— 2CaasAl(SOa)Fia ...
... a building material, while raw phosphogypsum meets the requirements only for road construction materials.
Keywords: y-spectrometry, brushite, chukhrovite, phosphogypsum, radionuclides, recrystallization
(Received 12 December 2019; revised 4 April 2020; Accepted Manuscript online: 28 April 2020; Associate ...
... cant extent after the recrystallization process. Quartz and some
other impurities (such as Ba in BaSO„, Ra in RaSO,, Ti in hydrated
TiO», Al in chukhrovite, Fe in ferric oxyhydroxide species, etc.),
due to their poor solubility, remained in the insoluble residue,
while highly soluble ions (Na*, K* ...
Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić. "Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering" in Clay Minerals, Cambridge University press (2020). https://doi.org/10.1180/clm.2020.11
