| 摘要 |
The invention concerns a method and an apparatus for producing a metal hydroxide, in particular magnesium hydroxide, from a salt solution, wherein the metal is firstly precipitated from the salt solution and the suspension produced in that way is then filtered. The object of the invention is to provide a method and an apparatus which permit simple inexpensive and rapid production of metal hydroxide, in particular magnesium hydroxide, in a high state of purity. According to the invention that is achieved in that the suspension is filtered through at least one filter ( 13 - 17 ) of a cross-flow filtration installation ( 13 - 17 ), and that a permeate produced by filtration of the suspension is fed to the cross-flow filtration installation ( 14 - 17 ) again.
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