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Modified ceramsite capable of efficiently removing manganese and preparation method of modified ceramsite
The invention discloses modified ceramsite capable of efficiently removing manganese. The modified ceramsite is prepared from the following raw materials in percentage by weight: 40-60wt% of papermaking white mud, 40-60wt% of fly ash and 0-10wt% of kaolin. The invention also discloses a preparation method of the modified ceramsite capable of efficiently removing manganese, which comprises the following steps of: (1) well mixing papermaking white mud and fly ash as main raw materials and kaolin as an additive according to a ratio, and then preparing green pellets by a centrifugal balling machine, the particle size of the green pellets being controllable in a range of 2-20mm; (2) naturally curing the green pellets prepared in the step (1) for 20-24 hours, drying the green pellets at 105 DEG C, and finally calcining the green pellets to obtain ceramsite; and (3) mixing the ceramsite obtained in the step (2) with a NaOH solution, carrying out a hydrothermal reaction, filtering, repeatedly washing the ceramsite with deionized water until the pH value of the washing liquid is about 7, and finally drying to obtain the final modified ceramsite. The modified ceramsite prepared by the method is high in speed, large in adsorption capacity and remarkable in effect when being used for adsorbing and removing manganese.
本发明公开了一种高效除锰的改性陶粒，所述改性陶粒由以下用量的原料制成：造纸白泥40‑60wt％、粉煤灰40‑60wt％、高岭土0‑10wt％。还公开了一种高效除锰的改性陶粒制备方法，包括如下步骤：(1)以造纸白泥和粉煤灰为主要原料，高岭土为添加剂，按配比混匀后，经离心式成球机制成生球，生球粒径在2‑20mm范围内可控；(2)将步骤(1)制得的生球自然养护20‑24h后，经105℃烘干，最后煅烧获得陶粒；(3)将步骤(2)中的陶粒与NaOH溶液混合进行水热反应，然后过滤并用去离子水反复冲洗陶粒，直至洗液pH值为7左右，最后烘干，得到最终改性陶粒。本发明制备的改性陶粒，在吸附除锰时，速率快，吸附容量大，效果显著。
Modified ceramsite capable of efficiently removing manganese and preparation method of modified ceramsite
The invention discloses modified ceramsite capable of efficiently removing manganese. The modified ceramsite is prepared from the following raw materials in percentage by weight: 40-60wt% of papermaking white mud, 40-60wt% of fly ash and 0-10wt% of kaolin. The invention also discloses a preparation method of the modified ceramsite capable of efficiently removing manganese, which comprises the following steps of: (1) well mixing papermaking white mud and fly ash as main raw materials and kaolin as an additive according to a ratio, and then preparing green pellets by a centrifugal balling machine, the particle size of the green pellets being controllable in a range of 2-20mm; (2) naturally curing the green pellets prepared in the step (1) for 20-24 hours, drying the green pellets at 105 DEG C, and finally calcining the green pellets to obtain ceramsite; and (3) mixing the ceramsite obtained in the step (2) with a NaOH solution, carrying out a hydrothermal reaction, filtering, repeatedly washing the ceramsite with deionized water until the pH value of the washing liquid is about 7, and finally drying to obtain the final modified ceramsite. The modified ceramsite prepared by the method is high in speed, large in adsorption capacity and remarkable in effect when being used for adsorbing and removing manganese.
本发明公开了一种高效除锰的改性陶粒，所述改性陶粒由以下用量的原料制成：造纸白泥40‑60wt％、粉煤灰40‑60wt％、高岭土0‑10wt％。还公开了一种高效除锰的改性陶粒制备方法，包括如下步骤：(1)以造纸白泥和粉煤灰为主要原料，高岭土为添加剂，按配比混匀后，经离心式成球机制成生球，生球粒径在2‑20mm范围内可控；(2)将步骤(1)制得的生球自然养护20‑24h后，经105℃烘干，最后煅烧获得陶粒；(3)将步骤(2)中的陶粒与NaOH溶液混合进行水热反应，然后过滤并用去离子水反复冲洗陶粒，直至洗液pH值为7左右，最后烘干，得到最终改性陶粒。本发明制备的改性陶粒，在吸附除锰时，速率快，吸附容量大，效果显著。
Modified ceramsite capable of efficiently removing manganese and preparation method of modified ceramsite
一种高效除锰的改性陶粒及其制备方法
QIN JUAN (author) / OU CHANGJIN (author) / YANG SHANGWEN (author) / WEN QIAN (author) / HUANG YING (author) / CAI LIN (author) / BAO YUQING (author) / HUANG FANG (author) / WU YUJIE (author) / XI XIAODONG (author)
2021-08-31
Patent
Electronic Resource
Chinese
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