<noframes id="dkxbr"><delect id="dkxbr"><rt id="dkxbr"></rt></delect><rt id="dkxbr"><delect id="dkxbr"><delect id="dkxbr"></delect></delect></rt><rt id="dkxbr"></rt><bdo id="dkxbr"></bdo><noframes id="dkxbr"><noframes id="dkxbr"><bdo id="dkxbr"></bdo><noframes id="dkxbr"><noframes id="dkxbr"><noframes id="dkxbr"><rt id="dkxbr"><noframes id="dkxbr"><noframes id="dkxbr"><rt id="dkxbr"></rt><noframes id="dkxbr"><rt id="dkxbr"></rt><noframes id="dkxbr"><noframes id="dkxbr"> <noframes id="dkxbr"><noframes id="dkxbr"><delect id="dkxbr"></delect><rt id="dkxbr"><delect id="dkxbr"><delect id="dkxbr"></delect></delect></rt><noframes id="dkxbr"><rt id="dkxbr"><delect id="dkxbr"></delect></rt><rt id="dkxbr"></rt><bdo id="dkxbr"></bdo><rt id="dkxbr"></rt><noframes id="dkxbr"><rt id="dkxbr"></rt> <delect id="dkxbr"></delect><rt id="dkxbr"><rt id="dkxbr"></rt></rt><noframes id="dkxbr"><rt id="dkxbr"><delect id="dkxbr"></delect></rt><noframes id="dkxbr"><delect id="dkxbr"><bdo id="dkxbr"></bdo></delect>
簡述無水氯化鈣的生產工藝
作者: 濰坊冠旭化無水氯化鈣    發布日期: 2019/11/28 10:03:36     人氣:

    無水氯化鈣(CaCl2)是白色或類白色固體(顆粒,塊狀或粉狀),略帶苦味,無味,易溶于水,并且在分解水時會散發大量熱量。它具有強吸濕性,易于在空氣中潮解。
摻CaCl2的干燥劑,脫水劑,制冷劑,航空和汽車發動機防凍劑,混凝防凍劑,織物阻燃劑,食品防腐劑等。
    一、生產原理
可以將氯添加到石灰石中。主要化學反應如下:
CaCO3 + 2HCl→CaCl2 + H2O + CO2↑
    二、操作過程
    1、二水氯化鈣(CaCl2·2H2O):鹽酸(31%)和石灰石粉在反應罐中以2.2:1的比例反應,在攪拌下生成酸性氯化鈣溶液。澄清池。加入石灰乳以將溶液的pH調節至8.9-9。此時,氫氧化鐵和氫氧化鎂沉淀。重復,過濾,更換并在蒸發皿中加熱以蒸發至172?174°C。結晶后,分離并在200?240°C干燥,以獲得二水合氯化鈣。
    2、無水氯化鈣的制備:將二水合氯化鈣重新加熱至260?300℃,干燥并脫水,將變為白色無水氯化鈣。

    以上就是無水氯化鈣廠家帶來的全部內容,想要了解更多請繼續關注我們。

無水氯化鈣

返回列表
小情侣毛没长齐在教室尝禁果
<noframes id="dkxbr"><delect id="dkxbr"><rt id="dkxbr"></rt></delect><rt id="dkxbr"><delect id="dkxbr"><delect id="dkxbr"></delect></delect></rt><rt id="dkxbr"></rt><bdo id="dkxbr"></bdo><noframes id="dkxbr"><noframes id="dkxbr"><bdo id="dkxbr"></bdo><noframes id="dkxbr"><noframes id="dkxbr"><noframes id="dkxbr"><rt id="dkxbr"><noframes id="dkxbr"><noframes id="dkxbr"><rt id="dkxbr"></rt><noframes id="dkxbr"><rt id="dkxbr"></rt><noframes id="dkxbr"><noframes id="dkxbr"> <noframes id="dkxbr"><noframes id="dkxbr"><delect id="dkxbr"></delect><rt id="dkxbr"><delect id="dkxbr"><delect id="dkxbr"></delect></delect></rt><noframes id="dkxbr"><rt id="dkxbr"><delect id="dkxbr"></delect></rt><rt id="dkxbr"></rt><bdo id="dkxbr"></bdo><rt id="dkxbr"></rt><noframes id="dkxbr"><rt id="dkxbr"></rt> <delect id="dkxbr"></delect><rt id="dkxbr"><rt id="dkxbr"></rt></rt><noframes id="dkxbr"><rt id="dkxbr"><delect id="dkxbr"></delect></rt><noframes id="dkxbr"><delect id="dkxbr"><bdo id="dkxbr"></bdo></delect>