农药氯化苦新工艺的开发  

New Manufactuie Method's Institute of Chloropicrin

作　　者：于敏 刘福军[2] 

机构地区：[1]大连染料化工有限公司,大连116113 [2]山东华阳科技股份有限公司,宁阳271411

出　　处：《农药》2003年第5期16-18,共3页Agrochemicals

摘　　要：农药氯化苦用于粮食和土壤的熏蒸 ,对经济作物的增产、稳产和改善品质起到其它农药无可替代作用。又由于其对人强烈的刺激和催泪作用 ,使人不至于中毒。无残留 ,安全可靠。在对氯化苦合成的多种方法对比的基础上 ,开发了以硝基甲烷为起始原料经次氯酸钠氯化 ,蒸馏提纯 ,生产出氯化苦含量达 99.5 %以上 ,总收率达到 92 %以上。该工艺路线具有流程短、原料易得、产品质量好、收率高、成本低、“三废”少等优点。Pesticide chloropicrin is uscd in soil and cereal fumigation. it could stabilize and increase the production and improve the quality of economic crops. by this way no other pesticide could be its substitute. since its strong irritation and lachrymator property to human beings, people could avoid the poison from it.there is no residue from it. based on comparing with various synthesis methods, this article gives a developed method by using nitromethane as initial raw material through chlorination with sodium hypochlorite and purification by distillation to produce chloropicrin 99.5% min. the total yield rate is over 92%. this process has obvious advantage including less production steps, easy availability of raw material, excellent quality, high yield, low production cost and without three wastes.

关 键 词：农药 氯化苦 新工艺 开发 硝基甲烷 氮化 

分 类 号：TQ450[化学工程—农药化工]