一般評(píng)價(jià)一個(gè)工序的優(yōu)劣，需要從成品質(zhì)量、成本、設(shè)備成本等各方面綜合考慮，我們今天就來講一下氫氧化鉀的水銀電解法的加工工序：

Generally, to evaluate the advantages and disadvantages of a process, we need to comprehensively consider the quality of finished products, cost, equipment cost and other aspects. Today, let's talk about the processing process of the mercury electrolysis method of potassium hydroxide:

水銀電解法電解液的配制和隔膜電解法相同。電解室中以石墨或金屬、作陽極，水銀作陰極，電解生成的氯氣送氯氣干燥工序，生成的鉀汞齊流入解汞室。還有大部分的氯化鉀沒有發(fā)生反應(yīng)，再重新以淡鹽水的狀態(tài)經(jīng)處理后，返回原料溶解工序。鉀汞齊和清水發(fā)生反應(yīng)生成氫氧化鉀和氫氣。因?yàn)閺慕夤疑鰜淼臐舛葹?5%~50%，可當(dāng)做液體產(chǎn)品進(jìn)行使用，也可再經(jīng)熬堿鍋蒸濃成固堿或制成片狀產(chǎn)品。

The preparation of the electrolyte of the mercury electrolysis method is the same as that of the diaphragm electrolysis method. Graphite or metal is used as anode and mercury is used as cathode in the electrolysis chamber. The chlorine generated by electrolysis is sent to the chlorine drying process, and the potassium amalgam generated flows into the mercury removal chamber. Most of the potassium chloride did not react, and then returned to the raw material dissolution process after being treated again in the state of dilute brine. Potassium amalgam reacts with water to produce potassium hydroxide and hydrogen. Because the concentration produced from the mercury dissolution chamber is 45%~50%, it can be used as a liquid product, or it can be evaporated into solid alkali or made into a flake product through an alkali boiling pot.

1、氯化鉀溶液的精制

1. Refinement of potassium chloride solution

原材料氯化鉀在化鹽槽中進(jìn)行溶化，并且添加碳化鉀，氯化鋇除去鈣、鎂和硫酸根等雜質(zhì)，然后進(jìn)入澄清槽，清液溢流而出，使用砂濾器過濾出輕微的懸浮物送入中和槽，加鹽酸酸化流入精鹽水儲(chǔ)槽，經(jīng)過鹽水預(yù)熱器用泵將精鹽水打鹽水高位槽，之后流入水銀電解槽。澄清槽底部的鹽泥，然后過濾回收其中的鹽水，泥排掉即可。

The raw material potassium chloride is dissolved in the salt tank, and potassium carbide is added. Barium chloride removes impurities such as calcium, magnesium and sulfate, and then enters the clarification tank. The clear liquid overflows out. Slight suspended substances are filtered out by sand filter and sent to the neutralization tank. Hydrochloric acid is added to acidize the water into the refined brine storage tank. The refined brine is pumped to the brine head tank through the brine preheater, and then flows into the mercury electrolytic tank. Clarify the salt mud at the bottom of the tank, then filter and recover the salt water, and then discharge the mud.

2、電解

2. Electrolysis

水銀電解槽分電解室和解泵室兩部分。電解室中以石墨或金屬作陽極，水銀作陰極，通電后產(chǎn)生的氯氣送氯氣干燥工序，電解生成鉀泵齊流入解泵室。大部分未反應(yīng)的氯化鉀以淡鹽水狀態(tài)經(jīng)處理后：返回鹽水工序。解泵室中，鉀泵齊與端部清水反應(yīng)生成氫氧化鉀溶液流入電解液貯槽。解泵室產(chǎn)生的氫氣送入到氫氣輸送站。

The mercury electrolytic cell is divided into two parts: electrolytic chamber and pump chamber. Graphite or metal is used as anode and mercury is used as cathode in the electrolysis chamber. Chlorine generated after electrification is sent to the chlorine drying process, and potassium generated by electrolysis is pumped into the pump chamber. Most of the unreacted potassium chloride is treated as dilute brine: return to the brine process. In the pump chamber, the potassium pump reacts with the end water to generate potassium hydroxide solution and flows into the electrolyte storage tank. The hydrogen generated in the pump chamber is sent to the hydrogen transmission station.

3、固堿

3. Solid alkali

從水銀電解槽解泵室出來的含KOH45-50%的堿液，經(jīng)熬堿制成固堿或經(jīng)制片機(jī)制片成產(chǎn)品。

Alkali solution containing 45-50% KOH coming out of the mercury electrolytic tank pump chamber is made into solid alkali by boiling alkali or into products by film making machine.

上面介紹的就是使用水銀電解法的氫氧化鉀的工序，一般可以用來弄成液堿和固堿，兩種都可以進(jìn)行使用和出售。更多相關(guān)內(nèi)容就來我們網(wǎng)站http://www.jsyjs.net咨詢了解吧！

The process of potassium hydroxide using mercury electrolysis is described above. Generally, it can be used to make liquid caustic soda and solid caustic soda, both of which can be used and sold. Come to our website for more relevant content http://www.jsyjs.net Ask about it!