Polymeric admixtures effects on calcium carbonate crystallization: relevance to cement industries and biomineralization

Precipitation of calcium carbonate particles by gas–liquid reaction: Morphology and size distribution of particles in Couette-Taylor and stirred tank reactors

“…The polymorphs and size distribution of calcium carbonate have already been reported to depend on the precipitation conditions, such as the supersaturation, temperature [1,2], solution pH [3,4], ionic ratio of the reactants [5], and polymeric additives [6][7][8]. Also, an extensive study on the effect of the operating variables, including the reactant concentration, residence time, specific power input and feed point location, on calcium carbonate precipitation was performed [9].…”

Controlling the Selective Formation of Calcium Sulfate Polymorphs at Room Temperature

“…by carefully adjusting process conditions [4] or by introducing specific additives [5,6] ) and thus, phase selection is still a major challenge for many applications. [7] Calcium sulfate is one prominent example for a mineral system exhibiting fairly rich polymorphism. [8][9][10] At ambient temperature and pressure, its dihydrate phase (gypsum, CaSO 4 ·2 H 2 O) represents the thermodynamically stable modification.…”

Biomineral structure and crystallographic arrangement of cerioid and phaceloid growth in corals belonging to the Syringoporicae (Tabulata, Devonian–Carboniferous): a genetic reflection

“…Crystallization in the presence of organic compounds can generate irregular morphologies that could have suggested to Lafuste & Tourneur (1991) the organic origin of these structures. Recently, there have been numerous experiments on controlled crystallization in the presence of organic molecules and their control over morphological habits, which change substantially (Falini et al 2007; Goffredo et al 2011; Nindiyasari et al 2014). This evidence suggests that hyaline elements should be not considered as granules.…”