对于氢氧化钾大家可能是不大熟悉，氢氧化钾这种化合物因为具有强碱性及腐蚀性，因而在化工行业和其它一些行业中都有很重要的应用，也可以作为很多类试剂应用于不同的领域，比如干燥剂、吸收剂、耐火粘合剂等。用于干燥剂我们较常见的就是食品包装里面装的干燥剂是为了防止食品受潮。

People may not be familiar with potassium hydroxide. Because of its strong alkalinity and corrosiveness, potassium hydroxide is an important compound in the chemical industry and other industries. It can also be used as a variety of reagents in different fields, such as desiccant, absorbent, fire-resistant adhesive, etc. The common use of desiccants in food packaging is to prevent food from getting damp.

（1）原材料与配方

(1) Raw materials and formulas

①耐火液配方材料 配比/kg 材料 配比/kg氢氧化钾 8金属硅化物 30粉末状碳酸钠 7水 60。

① Refractory liquid formula material ratio/kg material ratio/kg potassium hydroxide 8 metal silicide 30 powdered sodium carbonate 7 water 60.

②没有机耐火胶配方材料 配比/质量份 材料 配比/质量份耐火液 10稻壳 5旧报纸 80棉 5。

② There is no formula material ratio/mass ratio material ratio/mass ratio refractory liquid 10 rice husks 5 old newspapers 80 cotton 5.

（2）氢氧化钾耐火粘合剂的制备方法

(2) Preparation method of potassium hydroxide refractory adhesive

①耐火液制备方法：在反应槽内顺序加入颗粒状氢氧化钾8kg、粉末状碳酸钠（苏打灰）（旭硝子株式会社制）7kg和金属硅化物30kg，再加入60l的水。

① Preparation method of refractory liquid: add 8kg of granular potassium hydroxide, 7kg of powdered sodium carbonate (soda ash) (made by Asahi Co., Ltd.) and 30kg of metal silicide into the reaction tank in sequence, and then add 60l of water.

在其中开始自然反应，从下层的氢氧化钾开始剧烈反应，在反应槽内从下侧向上侧发生对流。反应温度自然上升，反应温度在80~90℃的范围内时，呈活跃的反应状态。反应温度高不超过92℃。反应在10h左右结束，分离固体，可以获得约48l（约70kg）耐火液。残留的固体是金属硅化物块，如果用水洗净，残留约22kg左右的金属硅化物块。

The natural reaction starts from the potassium hydroxide in the lower layer, and convection occurs from the lower side to the upper side in the reaction tank. The reaction temperature naturally rises, and when the reaction temperature is within the range of 80-90 ℃, it shows an active reaction state. The reaction temperature should not exceed 92 ℃. The reaction ends around 10 hours, and the solid is separated to obtain approximately 48 l (approximately 70 kg) of refractory liquid. The remaining solid is a metal silicide block. If washed with water, about 22kg of metal silicide blocks will remain.

在这种残存的金属硅化物块中，再补充加入约8kg左右的金属硅化物块，总和为30kg的金属硅化物，供给到二次反应中。与一次反应相同，在反应槽内加入颗粒状氢氧化钾8kg，粉末状碳酸钠（苏打灰）（旭硝子株式会社制）7kg，接着，依次加入一次反应残留的金属硅化物块22kg和新的金属硅化物块8kg，接着加入60l水，开始二次制备耐火液的反应。

In this residual metal silicide block, approximately 8kg of metal silicide blocks are added, totaling 30kg, and supplied to the secondary reaction. As for the primary reaction, 8kg of granular potassium hydroxide and 7kg of powdered sodium carbonate (soda ash) (Asahi Co., Ltd.) are added into the reaction tank, followed by 22kg of residual metal silicide blocks and 8kg of new metal silicide blocks from the primary reaction, followed by 60l of water to start the reaction of secondary preparation of refractory liquid.

在制备中，按照先加颗粒状氢氧化钾，再加入粉末状碳酸钠（苏打灰），再加入金属硅化物块，然后加水的加料顺序，由下层氢氧化钾开始反应，可形成上下对流式活跃反应，由此制备的耐火液性能较好。

In the preparation, granular potassium hydroxide is added first, then powdered sodium carbonate (soda ash) is added, then metal silicide blocks are added, and then water is added. The reaction starts from the lower layer of potassium hydroxide, which can form an up and down convection active reaction. The refractory liquid thus prepared has good performance.