| 摘要 |
A method for purifying melamine comprising impurities like ureido-melamine, oxotriazines, melam, melem, comprises the step of putting into contact at a temperature comprised between 340 ~C and 410 ~C and at a pressure comprised between 8 and 17 MPa a melamine melt with a bed of a catalyst thus obtaining melamine with a purity of at least 99 %.
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