The invention relates to a multifunctional natural marine biological
calcium preparation. Marine biological
calcium raw materials such as shells of mollusks, pearls, corals, fish bones in the
pollution-free waters are incompletely calcined for multiple times to prepare nano-aperture biological
calcium powder of a porous
micro structure containing an appropriate amount of active calcium, the prepared biological calcium
powder can be used as a
human body calcium supplementing preparation, detergent for food and tableware, heat preservation and heat conduction accelerants of a heat preservation material and the like. According to different uses, a corresponding
raw material proportion and technology are adopted to obtain natural high-quality biological calcium
fine powder: when used as the
human body calcium supplementing preparation, the biological calcium
powder can be safely and efficiently absorbed by the
human body; when the biological calcium powder is used as the detergent, harmful substances attached to the surface of the food such as
fruits and vegetables and the surface of the tableware can be effectively eliminated, and safety and no secondary
pollution can be realized; and when the biological calcium powder is used as the heat preservation and heat conduction
accelerant and added into the heat preservation
composite material, the heat storage capacity and heat conduction coefficient can be effectively improved. By adopting the multifunctional natural marine biological calcium preparation, the problem that the heavy
metal content in the continental biological calcium source is out of limits can be solved, and the multifunctional high-quality marine biological calcium preparation can be obtained.