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Bentonite Mining In New Zealand

coalgate bentonite quarry (wright's quarry), coalgate,canterbury bentonite ltd began mining here in 1967 at the quarry in the harper hills. the operation was later owned by omya new zealand ltd, before being acquired by transform minerals in 2006. they went into receivership in 2014, and mid 2015 the company and operations was taken over by victory lime 2000 ltd, a subsidiary of dunedin based palmer mr ltd..settling of bentonite in gelatine solutions,however, calcium bentonite gives a much more compact pellet with a lower water content compared to sodium bentonite. hence calcium bentonite is favoured in europe for removing fines from wine [25]. in addition, calcium bentonite has a larger particle size than sodium bentonite which makes it more favorable for settling and decanting processes..categorization of industrial clays of australia and new,in this section, we classify selected clay deposits of australia and new zealand, shown in fig. 1, into the four categories . fig. 1 shows the location of categories 1, 2 and 3 resources and that of category 4 clay that has the potential of being upgraded if constraints of quality or geographical factors can be overcome. the locations of category 4 clay of low quality has been omitted since.lkab minerals®; an international industrial minerals company,lkab minerals is part of lkab, a swedish state-owned company and one of the world's leading producers of highly upgraded iron ore products. lkab started operations in 1890 and today produces close to 27 million tonnes iron ore products and is a growing supplier of minerals, services, and high-tech products for mining and other industries..

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