Method for preparing activated char from bamboo material
A technology for preparing activated carbon and raw materials, which is applied in the field of activated carbon, can solve problems such as unrelated and undisclosed chemical methods, and achieve the effect of low impurity content
CN1333180AInactive Publication Date: 2002-01-30尤匡银
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- 尤匡银
- Publication Date
- 2002-01-30
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
The method for preparing active carbon from bamboo raw material includes the following steps: (1). mao bamboo and waste produced by making bamboo wares are used as raw material, through cutting and screening, and screening bamboo scraps or screening bamboo scraps and making them form; (2). low temp. pyrogenic distillation carbonization of bamboo raw material in carbonization furnace, its pyrogenic distrillation carbonization temp. is 200-600 deg.C; (3). in the presence of micro oxygen placing the carbonized bamboo raw material into activating furnace and making activation by using superheatedsteam at high-temp., activating temp. is 400-850 deg.c; and (4) breaking or water washing activated active carbon, drying, sorting and sieving to obtain the invented product. Before carbonization thebamboo raw material can be soaked in mixed solution formed from zinc chloride and hydrogen peroxide or mixed solution formed from phosphoric acid and hydrogen peroxide. Its product not only possessesthe advantages of all the wooden active carbons, but also its methylthionine chloride decolouring power can be raised by 20%.
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Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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