C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/27
C02F 1/42 (2006.01) A01K 63/04 (2006.01) B01J 45/00 (2006.01) C02F 1/68 (2006.01)
Patent
CA 1166772
TITLE OF THE INVENTION: TREATMENT OF WATER, ESPECIALLY WATER FOR AQUARIA ABSTRACT OF THE DISCLOSURE: Treatment of water for selective and quantitative removal of all cations of the transition elements, with simultaneous adjustment of a definite mole ratio of calcium, magnesium, and the alkali metals, with a cat- ion exchanger which, towards the ions of the I. transition elements, II. alkaline earth metals, III, alkali metals, shows a markedly gradually decreasing affinity from I. to III.; and which cation exchanger is loaded with calcium and magnesium ions in a predetermined mole ratio, or with hydrogen or sodium ions to obtain a water corresponding to the desired type of water in a vessel made of a water- resistant material and having at least one water-permeable wall.
327015
Fetherstonhaugh & Co.
Tetra Werke Dr.rer.nat. Ulrich Baensch Gesellschaft Mit Beschran
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