CAJ | 학술논문

在现有的制备可膨胀石墨的工艺路线的基础上,以50目鳞片石墨为原材料制备可膨胀石墨,将一次性投入重铬酸钾和浓硫酸(反应物)变成分次投入,并将洗涤过程中的部分滤液用作下一次制备的反应物.在使用等量的重铬酸钾和浓硫酸的情况下,制备出的可膨胀石墨的产量是一次性投入的4倍.同时,可以节约15%的洗涤水的用量.另外,应用SEM和XRD表征了可膨胀石墨的形貌和结构.
재현유적제비가팽창석묵적공예로선적기출상,이50목린편석묵위원재료제비가팽창석묵,장일차성투입중락산갑화농류산(반응물)변성분차투입,병장세조과정중적부분려액용작하일차제비적반응물.재사용등량적중락산갑화농류산적정황하,제비출적가팽창석묵적산량시일차성투입적4배.동시,가이절약15%적세조수적용량.령외,응용SEM화XRD표정료가팽창석묵적형모화결구.
Expandable graphite is prepared by 50 mesh of flake graphite as raw material, and potassium dichromate and concentrated sulfur acid (reactants), which are input into the reactor once, are separately input into the reactor in turn, which bases on the process of preparing expandable graphite in existence. Meanwhile, a part of filtrate is applied as the reactants for the next preparation in the process of lavation. Under unchanging the dosages of potassium dichromate and concentrated sulfur acid, the output of the oxpandable graphite is five times as much than the one which is prepared by inputting into once, and 15% of washing water can be saved in the process of the preparation. In addition, the morphology and the structure of expandable graphite are characterized by SEM and XRD.