Environment-friendly process for preparing activated carbon by virtue of phosphoric acid method
The invention relates to the preparation field of activated carbon and particularly relates to an environment-friendly process for preparing activated carbon by virtue of a phosphoric acid method. According to the environment-friendly process, the environmental pollution can be greatly reduced. The...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the preparation field of activated carbon and particularly relates to an environment-friendly process for preparing activated carbon by virtue of a phosphoric acid method. According to the environment-friendly process, the environmental pollution can be greatly reduced. The environment-friendly process comprises the following steps: (1) crushing a carbon-rich organic material, mixing the crushed material with a phosphoric acid solution in a mass ratio of 1 to (1-3), and carrying out dipping treatment, so as to obtain a preprocessed material; (2) heating the preprocessed material obtained in the step (1), carrying out thermal-insulation drying, and collecting obtained water steam, so as to respectively obtain high-temperature steam and a dried material; (3) separating the high-temperature steam and the dried material obtained in the step (2) by virtue of a gas-solid separation device, drying the dried material, carrying out thermal-insulation carbonization and activating treatment on t |
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