The principle and process of producing potassium-nitrogen compound fertilizer and aluminium hydroxide from potash alum are studied. Some problems are solved through the pilot test.

利用四川某含钾岩石制得的钾明矾进一步制备硫酸型钾氮肥和氢氧化铝，从原理、工艺等方面进行探讨，并通过中试解决了工业化生产所出现的问题。

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Potassium hydroxide is frequently called caustic potash, and in the fertilizer industry, potassium oxide is called potash.

氢氧化钾常被称为腐蚀性碳酸钾，在肥料工业中，也把氧化钾称作钾碱。

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