发明名称 |
METHOD AND APPARATUS FOR MANUFACTURING GRAPHITE OXIDE |
摘要 |
There is provided a method and an apparatus for preparing graphite oxide, in accordance with the present disclosure, when an oxidizer is added by stages into a sequencing batch oxidizer mixer connected in multiple stages at a constantly low temperature, the oxidizer is mixed therein while suppressing an oxidation reaction. During an oxidation reaction of graphite, in a risky range of overheating and explosion, a tube type reactor equipped within a heat exchanger is used to accurately control a local temperature and the oxidizer can permeate between layers of the graphite with increased efficiency under ultrasonication. In an additional reaction range out of the risky range, a continuous stirred tank reactor is used to mature the oxidation reaction, so that a risk of explosion during manufacturing of graphite oxide can be reduced and a great amount of graphite oxide can be mass-produced economically. |
申请公布号 |
US2015108400(A1) |
申请公布日期 |
2015.04.23 |
申请号 |
US201414581150 |
申请日期 |
2014.12.23 |
申请人 |
IDT INTERNATIONAL CO., LTD. |
发明人 |
Ji Byoung Kyu;Choi Jung Young;Shin Cheol Min;Lee Shi Choon |
分类号 |
C01B31/04 |
主分类号 |
C01B31/04 |
代理机构 |
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代理人 |
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主权项 |
1. A method for manufacturing graphite oxide, the method comprising:
preparing graphite slurry by mixing graphite and a sulfuric acid; mixing the graphite slurry with an oxidizer selected from the group consisting of a permanganic acid, permanganate, and a permanganate sulfuric acid solution by supplying the oxidizer by stages into sequencing batch oxidizer mixers connected to one another in multiple stages; making an intermediate reaction by pressing a reaction mixture mixed with the oxidizer into a tube type reactor equipped within a thermostat bath to be applied with ultrasonic waves; making an additional reaction by supplying a reaction mixture of the intermediate reaction into a continuous stirred tank reactor; mixing a reaction mixture of the additional reaction with water added; adding a hydrogen peroxide aqueous solution to the reaction mixture mixed with the water and mixing them to terminate an oxidation reaction; washing and separating graphite oxide from the reaction mixture of the terminated oxidation reaction; and drying the separated graphite oxide. |
地址 |
Ulsan KR |