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Preparation method and application of oil tea fruit shell activated carbon

A technology of camellia husk and activated carbon, which is applied in chemical instruments and methods, textile industry wastewater treatment, inorganic chemistry and other directions, can solve the problems of increased production cost of activated carbon, high corrosion of equipment and high energy consumption of activated carbon, and achieves clean production, The effect of long service life and high adsorption rate

Pending Publication Date: 2019-05-10
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the method of using camellia oleifera seed oil to prepare activated carbon is divided into physical activation method and chemical activation method. The physical activation method consumes high energy, slow speed and long time to prepare activated carbon, which increases the cost of activated carbon preparation; chemical activation method is widely used in chemical activation method. The agent is highly corrosive to the equipment, pollutes the environment, and the activated carbon contains residual chemical activators, so the application is limited.

Method used

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  • Preparation method and application of oil tea fruit shell activated carbon
  • Preparation method and application of oil tea fruit shell activated carbon
  • Preparation method and application of oil tea fruit shell activated carbon

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preparation example Construction

[0036] A preparation method of camellia oleifera husk activated carbon, comprising the following steps:

[0037] (1) the camellia oleifera shell is washed, dried, pulverized and sieved to obtain the camellia oleifera shell powder for subsequent use;

[0038] (2) impregnating the camellia oleifera shell powder prepared in step (1) and the phosphoric acid solution with a concentration of 50-70wt% in a mass ratio of 1:2-4, wherein the impregnating time is 4-18h;

[0039] (3) Place the material obtained in step (2) in a high-temperature box furnace, and heat it from room temperature to a final temperature of 400-650°C under vacuum conditions, carbonize and activate simultaneously, keep warm, stop heating, and naturally cool to room temperature;

[0040] (4) Soak the product obtained in step (3) with deionized water, and repeatedly rinse until neutral; after washing, put it into a drying box for drying, and pulverize after drying to obtain the camellia oleifera husk activated carbo...

Embodiment 1

[0043] A preparation method of camellia oleifera husk activated carbon, comprising the following steps:

[0044] (1) the camellia oleifera shell is washed, dried, pulverized, and passed through a 100-mesh sieve to obtain the camellia oleifera shell powder for subsequent use;

[0045] (2) impregnating the camellia oleifera shell powder and phosphoric acid with a concentration of 50wt% in a mass ratio of 1:2 for 12h;

[0046] (3) Heat the impregnated Camellia oleifera shell powder in a high-temperature box furnace under reduced pressure from room temperature to 550° C. for 1 hour, keep it warm for a period of time; stop heating, and naturally cool to room temperature;

[0047] (4) Soak the product obtained in step (3) with deionized water, and repeatedly rinse until neutral; after washing, put it into a drying box for drying, and pulverize after drying to obtain the camellia oleifera husk activated carbon;

[0048] (5) The camellia oleifera husk activated carbon prepared in step ...

Embodiment 2

[0050] Change the mass ratio of Camellia oleifera husk powder and phosphoric acid solution into 1:3 in embodiment 1, and all the other are the same as embodiment 1.

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Abstract

The invention discloses a preparation method and an application of oil tea fruit shell activated carbon. According to the method, oil tea fruit shells serve as a raw material, the activated carbon isprepared under vacuum condition in a thermal cracking manner by a phosphoric acid activation method, carbonization and activation are simultaneously implemented, dosage of an activating agent is less,the specific surface area of a prepared product is large, total pore volume is high, a preparation process is green and clean, short in procedure and low in cost, the prepared oil tea fruit shell activated carbon is applied to adsorption and synthesis of dye rhodamine B, excellent adsorption effects are acquired, and large-scale production and application can be implemented.

Description

technical field [0001] The invention relates to a preparation method and application of camellia oleifera husk activated carbon and belongs to the technical field of activated carbon. Background technique [0002] Industrial dye wastewater is a major source of water pollution. Rhodamine B is widely used as an industrial dye due to its bright color, high color fixation rate, and good color fastness, and it is used in a large amount. However, this kind of dye wastewater has become one of the wastewater that needs to be treated urgently at this stage due to its high chroma, strong toxicity, refractory degradation, and easy carcinogenicity. Activated carbon is an adsorbent with excellent rhodamine B removal effect in dye wastewater treatment, but its further popularization and use is limited due to its high price. [0003] In recent years, the preparation of activated carbon from agricultural and forestry wastes has attracted widespread attention of researchers from various co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/324C01B32/342B01J20/20B01J20/30C02F1/28C02F101/38C02F103/30
Inventor 黄敏曾武廖锐霖陈宝宁陈莉黎建伟钟春海黄仁基
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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