Electron ceramic grade basic magnesium carbonate was obtained by adding Na_2CO_3 to the acid dissolved liquid of sepiolite and followed by microwave -hydrothermal decomposition method.

• 副产的酸浸取液精制后用纯碱法及微波加热水解法制得了电子陶瓷用碱式碳酸镁。该工艺不但可降低硅胶的生产成本，也提高了海泡石资源的应用价值。