PRODUCTION OF MAGNESIUM HYDROXIDE CONTAINING ADDITIVE ADDED THERETO AND PRODUCTION OF MAGNESIUM OXIDE, CONTAINING ADDITIVE THEREIN AND UTILIZING THE SAME

摘要

PURPOSE: To obtain magnesium hydroxide, containing an additive and good in dispersibility by adding an additive element capable of preventing a crystal of the magnesium hydroxide from growing to a solution after carrying out the reaction for producing the magnesium hydroxide. ;CONSTITUTION: This method for producing magnesium hydroxide containing an additive therein comprises adding an alkali to a solution of a water-soluble magnesium compound such as MgCl₂, initiating reaction for producing the magnesium hydroxide, then adding a compound such as an oxide of one or more elements selected from the group consisting of Ca, Fe, Co, Ni, Cu, Zn, Al, B, Si and S to the solution after the passage of ≥30min from the initiation of the reaction, reacting the compound therewith, affording the magnesium hydroxide and subsequently heat-treating the resultant magnesium hydroxide. Furthermore, this method for producing magnesium oxide containing an additive therein comprises as necessary, heat-treating the magnesium hydroxide containing the additive therein.;COPYRIGHT: (C)1995,JPO