Patent ID: 11926888
Assignee: JFE STEEL CORPORATION
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  H  Y | IPC C

Claim 0:
1. An annealing separator for grain-oriented electrical steel sheet, comprising:
magnesia that contains 0.05 mass % or more and 0.20 mass % or less of B and is mainly composed of MgO,
a phosphate in 0.1 parts by mass or more and 1.0 part by mass or less in terms of P per 100 parts by mass of the magnesia, and
titanium oxide in 1.0 part by mass or more and 10.0 parts by mass or less per 100 parts by mass of the magnesia, where the titanium oxide contains one or more alkali metals in a total amount of 0.050 mass % or more and 1.0 mass % or less and is mainly composed of TiO2, wherein
an amount of P adsorbed on the titanium oxide per 1 g of the titanium oxide is 0.05×10−4 g to 1.0×10−4 g.