| 简介 |
A method for producing phosphates and/or compounds containing phosphates is provided, in particular alkaline-earth phosphates, alkaline-earth silicophosphates, and alkaline-earth oxides, comprising the following steps : (a) heating bones and/or fish bones or a composition of said components in a pyrolysis process in the absence of oxygen and under reductive conditions at temperatures between 500 and 1100° C., wherein among other things high-energy gases, vapors, and carbon are produced, (b) subsequently combusting the carbon produced in step (a) under oxidative conditions in an oxidation step, wherein an inorganic radical of alkaline-earth carbonates, alkaline-earth oxides, and alkaline-earth phosphates is produced. |
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