id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ecletica-311	Borges, Renata Coura; Marques, Letícia Mombrini; Mahler, Cláudio Fernando; Bernedo, Alfredo Victor Bellido	Determination of the concentration of Ce, La, Sm and Eu in a phosphogypsum stack, in Imbituba city, Santa Catarina, Brazil	2018	8	.pdf	application/pdf	2852	138	54	Furthermore, few samples of phosphogypsum collected in the second and third depth of the stack 1 showed the maximum concentration for La. It was observed that La, Eu and Sm underwent little variation with depth, and Ce, in some points, presented a great variation; this is because REE in phosphogypsum samples were associated to the formation of carbonates, fluorides, sulfates and phosphates of these elements8. In order to determine levels of rare- earth elements in phosphogypsum stacks, located in Imbituba, Brazil, samples of 2000 grams of phosphogypsum were collected in nine different points in stack 1.	cache/ecletica-311.pdf	txt/ecletica-311.txt