净化黄磷尾气制取甲酸、碳酸二甲酯工艺研究  

Research on technology of purifying yellow phosphorus tail gas to produce formic acid and dimethyl carbonate

作　　者：任占冬[1] 陈樑[2] 宁平[2] 陈云华[2] 潘克昌 张恒津[4] 

机构地区：[1]武汉工业学院化学与环境工程系,湖北武汉430023 [2]昆明理工大学一碳化工研究中心,云南昆明650224 [3]云南昆阳磷肥厂,云南昆明650604 [4]江磷集团有限公司,云南江川652600

出　　处：《化学工程》2006年第12期62-65,共4页Chemical Engineering(China)

基　　金："863"高技术计划资助项目(2004AA649040);云南省省院省校合作项目(99YT02);云南省科技计划项目省应用基金(2003E0027M)

摘　　要：介绍了水洗-碱洗-催化氧化-变温变压吸附组成的黄磷尾气净化工艺,通过净化可以得到质量分数大于98%的一氧化碳气体,且有害杂质(硫化氢、磷化氢等)的质量浓度均小于1 mg/m3。介绍了甲酸和碳酸二甲酯的合成,其中重点介绍了净化黄磷尾气制取甲酸和碳酸二甲酯2个清洁生产工艺。这2个工艺既利用了黄磷尾气,又无三废排放,其一氧化碳的转化率分别为95%和100%,甲酸和碳酸二甲酯的收率分别达到90%和85%,为净化黄磷尾气合成多种一碳化工产品提供了工艺基础。The process technology for purifying the yellow phosphorus tail gas was introduced, including water washing-caustic washing-catalytic oxidation-temperature and pressure swing adsorption. After the purification, the mass fraction of CO gas is more than 98%, and the mass concentration of harmful impurities （ H2S, PH3 ） is less than 1 mg/m^3. In addition, two syntheses processes of formic acid and dimethyl carbonate were described, especially the clean production process of purifying the yellow phosphorus tail gas to produce formic acid and dimethyl carbonate. By these two technologies, the yellow phosphorus tail gas can be used without wastes. CO conversion is 95% and 100% and the yield of formic acid and dimethyl carbonate is 90% and 85% respectively. These technologies provide the basis for purifying the yellow phosphorus tail gas to produce Cl chemistry products.

关 键 词：黄磷尾气 催化氧化 甲酸 碳酸二甲酯 

分 类 号：X781[环境科学与工程—环境工程] TQ225.121[化学工程—有机化工] TQ265.11