氯化铵是联碱法生产纯碱的联产品。采用联碱法生产纯碱时,可以利用废渣废气同时生产出等量氯化铵,既防止了环境污染,又增加了农用化肥。因此国内不少碱厂都采用了联碱法制造纯碱的工艺路线。目前我国年产氯化铵已超过100万吨,预计2000年将达300万吨,是世界上生产氯化铵最多的国家。我省金昌化工总厂是利用联碱法生产纯碱的厂家之一,年产纯碱和氯化铵各40000吨。氯化铵的含氮量约25％,40000吨折纯氮10000吨。根据全省化肥网试验结果,每公斤纯氮平 Ammonium chloride is the co-product of soda production of soda ash. Soda production using soda ash, the waste gas can be used at the same time to produce the same amount of ammonium chloride, both to prevent environmental pollution, but also increased agricultural fertilizers. Therefore, many domestic soda plants have adopted the soda process of soda production process. At present, China has an annual output of ammonium chloride exceeding 1 million tons and it is estimated that it will reach 3 million tons in 2000. This is the country that produces the largest amount of ammonium chloride in the world. Jinchang Chemical Plant in our province is the use of soda ash production of alkali one of the manufacturers, with an annual output of 40,000 tons of soda ash and ammonium chloride. Ammonium chloride nitrogen content of about 25%, 40,000 tons off pure nitrogen 10,000 tons. According to the province’s fertilizer net test results, per kilogram of pure nitrogen level