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1、成果内容简介:乙醛肟是农药灭多威的重要中间体,同时也是甲硫基乙醛肟不可缺少的原料。目前国内企业乙醛肟生产大都采用结晶硫酸(盐酸)羟胺作原料,由于原料价格较高,且没有生产控制分析方法,使乙醛肟原料消耗成本居高不下,严重制约了灭多威及下游产品的发展。我所经过大量试验研究,对乙醛肟生产工艺作了重大改进,开发成功了乙醛肟低耗生产新工艺,用拉希克法反应得到的硫酸羟胺(盐酸羟胺)水溶液直接作原料,从而大大降低了生产成本。该技术已在山东、江苏等多
1, the results Description: acetaldoxime pesticide methomyl important intermediates, but also methylthio acetaldehyde oxime indispensable raw materials. At present, most of the domestic enterprises acetaldehyde oxime production of crystalline sulfuric acid (hydrochloric acid) hydroxylamine as raw materials, due to higher raw material prices, and no production control analysis, so that consumption of acetaldehyde oxime high cost of raw materials, severely restricted methomyl and downstream Product development. I have undergone a large number of experimental studies, made a significant improvement on the production of acetaldoxime, the successful development of a new low-production acetaldehyde oxime process, with Raschik reaction hydroxylamine sulfate (hydroxylamine hydrochloride) aqueous solution as raw material directly Greatly reduce the production costs. The technology has been in Shandong, Jiangsu and more