Calcium carbonate crystallization on the basis of waste oil shale ash leachatesVelts, Olga; Uibu, Mai; Kallas, Juha; Kuusik, Rein, keemikISIC 18 : 18th International Symposium on Industrial Crystallization : 13-16 September 2011, Zurich, Switzerland : book of abstracts2011 / p. 501 : ill Calcium carbonate precipitation : modelling of reaction kinetics in tubular reactorHautaniemi, Marjaana; Imppola, O.; Solismaa, P.; Kukkamäki, E.; Kallas, Juha; Louhi-Kultanen, MarjattaISIC 18 : 18th International Symposium on Industrial Crystallization : 13-16 September 2011, Zurich, Switzerland : book of abstracts2011 / p. 41-42 : ill