第 48 卷第 6 期 |  | Vol. 48 No. 6 | 2018 年 12 月 | Dec 2018 |
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所屬欄目:安全與環(huán)保
不銹鋼鹽酸酸洗廢酸資源化回收研究 |
段 政1,郭 琛1,高建峰1*,郝 敏1,劉 艷1,趙林秀2
(1. 中北大學(xué) 理學(xué)院,山西 太原 030051;2. 中北大學(xué) 化學(xué)工程與技術(shù)學(xué)院,山西 太原 030051) |
摘 要:綜合采用減壓蒸餾和磷酸法,對高酸度不銹鋼鹽酸酸洗廢酸進(jìn)行了回收處理,結果表明:酸的回收率達95.6%,F-回收率達87.1%。經(jīng)回收后的鐵磷酸亞鐵氮吸附結果表明磷酸亞鐵是多孔的,可用作磷酸鐵鋰電池原材料。實(shí)現了廢酸中添加劑的高效回收利用與零排放,該工藝方法成本低、效率高、操作簡(jiǎn)單,對鋼鐵酸洗廢酸的資源化回收處理提供了新思路。 |
關(guān)鍵詞:酸洗廢酸;減壓蒸餾;磷酸法;資源化回收 |
中圖分類(lèi)號:X703 文獻標識碼:A 文章編號:1009-9212(2018)06-0069-05 |
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Recycling of Stainless-steel Hydrochloric Acid Pickling Wastewater |
DUAN Zheng1, GUO Chen1, GAO Jian-feng1*, HAO Min1, LIU Yan1, ZHAO Lin-xiu2
(1. School of Science, North University of China, Taiyuan 030051, China; 2. School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China) |
Abstract:The high acidity stainless steel hydrochloric acid pickling waste acid was recovered by vacuum distillation combined with phosphoric acid method. The results showed that the acid recovery rate was 95.6% and F- recovery rate was 87.1%. Adsorption results of the recovered iron ferrous phosphate indicated that the ferrous phosphate was porous and could be used as a raw material for the lithium iron phosphate. This method realized high-efficiency recycling and zero emission of additives in waste acid. Due to its low cost, high efficiency and simple operation it provides a new idea for resource recycling of steel pickling waste acid. |
Key words:pickling waste acid; vacuum distillation; phosphoric acid method; resource recycling |
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基金項目:山西省重點(diǎn)研發(fā)項目社會(huì )發(fā)展方面(201803D31059),山西省自然科學(xué)青年基金項目(2015021045)。
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作者簡(jiǎn)介:段 政(1993-),男,安徽亳州人,碩士研究生,研究方向:鋼鐵廢水回收處理(E-mail:duanzhengah@163.com)。
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聯(lián) 系 人:高建峰,教授,研究方向:水處理技術(shù)研究(E-mail:jianfenggao@163.com)。
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收稿日期:2018-12-02
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