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本人所写“土法制造硝酸钾”一文在1959年第4期“化学通报”上发表后,全国各地先后有不少同志来信提出问题,如在使用促使硝酸钾结晶的促进剂方面,经过多次试验,均告失败,而硝酸钾(土硝)的生产任务又非常迫切。因此,要我能尽快将有关硝酸钾煎炼(浓缩)过程中的一些技术性问题更详细地介绍一下。象湖南省有位同志,甚至开好介绍信,准备直接赶到浙江来现场参观,后因路途太远,才决定先从信函中取得联系的。为了节省时间和来往川资,特将一些操作技术,根据个人不成熟的经验补充如下,以供各地研究参考和相互交流。 (一)从硝土或硝砖中浸泡(抽提)出来的溶液,根
After I published my article entitled “Making Potassium Nitrate from the Native Law”, which was published in the Chemical Bulletin, No. 4, 1959, there have been many letters from comrades in various parts of the country asking questions such as the excessive use of promoters to promote the crystallization of potassium nitrate Times test, all failed, and potassium nitrate (soil nitrate) production tasks and very urgent. So, let me introduce some technical issues in the process of frying (concentrating) potassium nitrate as soon as possible. Like a comrade in Hunan Province and even a good introduction letter, ready to go directly to Zhejiang to visit the scene, because of the road too far, before deciding to get in touch from the letter. In order to save time and money, some of the operating techniques, according to the personal immature experience to add the following for reference and exchange of information around. (A) from the soil or nitrate bricks immersed (extracted) out of the solution, roots