Manganese-barium-containing dolomite continuous solid solution crystal and high-temperature and high-pressure synthesis method thereof

• Main Authors: LIANG WEN, CHEN XIHAO, ZHAI FUQIANG, LI LU
• Format: Patent
• Language: Chinese; English
• Published: 24.09.2021
• Subjects: AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR; CHEMISTRY; CRYSTAL GROWTH; METALLURGY; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; REFINING BY ZONE-MELTING OF MATERIAL; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; SINGLE-CRYSTAL-GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL

The invention discloses a manganese-barium-containing dolomite continuous solid solution crystal and a high-temperature and high-pressure synthesis method thereof. Analytically pure barium carbonate and magnesium oxalate dihydrate are ground and uniformly mixed according to a molar ratio of 1: 1 to serve as starting raw materials, and a precursor BaMg(CO3)2 is obtained through high-temperature and high-pressure reaction; the analytically pure barium carbonate and manganese carbonateare ground and uniformly mixed according to a molar ratio of 1: 1 to serve as starting raw materials, and high-temperature and high-pressure reaction is carried out to obtain a precursor BaMn(CO3)2; and the precursor BaMg(CO3)2 and the precursor BaMn(CO3)2 are ground and evenly mixed according to the molar ratio of (1-x): x to serve as a starting raw material, and a high-temperature and high-pressure reaction is carried out to obtain a manganese-barium-containing dolomite continuous solid solution crystal. The solid solution is a p