| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of decomposing silicate mineral, which is capable of decomposing asbestos and utilizing the product after decomposition as well. <P>SOLUTION: The method of decomposing a silicate mineral includes the step of reacting a first mixture including the silicate mineral, boron oxide, and metal and producing a decomposition product from a second mixture including the boride and the metal oxide. Asbestos can be used as the silicate mineral. In this case, the above reaction includes the reaction expressed by the formula; m<SB>11</SB>Mg<SB>6</SB>Si<SB>4</SB>O<SB>10</SB>(OH)<SB>8</SB>+m<SB>12</SB>B<SB>2</SB>O<SB>3</SB>+m<SB>13</SB>Mg→m<SB>18</SB>(Mg,Si)B<SB>α</SB>+m<SB>14</SB>MgB<SB>2</SB>+m<SB>15</SB>SiB<SB>6</SB>+m<SB>16</SB>MgO+m<SB>17</SB>H<SB>2</SB>O. <P>COPYRIGHT: (C)2009,JPO&INPIT |
