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氢氧化钾主含量低的解决方法

发布来源:http://www.jinhao360.com    更新时间:2022-11-14 点击数:

氢氧化钾是一种强碱,一般经常用作化工原料,但是其在使用的时候主要产品的主含量达不到要求的话,那么也会影响后续的使用效果,那当产品的主含量低的时候应该怎么解决呢,下面我们一起来看一下吧。
Potassium hydroxide is a kind of strong alkali, which is often used as chemical raw materials. However, if the main content of the main product fails to meet the requirements when it is used, the subsequent use effect will also be affected. How to solve the problem when the main content of the product is low? Let's take a look.
主含量是指成品中KOH的质量分数,这是确定产品质量主要的参数之一,一般要求含量大于90%。这个过程中控制好碱液的温度是关键。1.148%碱液浓度在经过一效、二效蒸发器蒸发只有,碱液浓度需要达到或大于48%,为后面进行的工序质量合格做好准备。这个过程主要是通过蒸气冷凝产生的热量用来蒸发碱液中的水分从而提高浓度,因此需要能够保证蒸气的压力和温度达到相应的要求:
The main content refers to the mass fraction of KOH in the finished product, which is one of the main parameters to determine the product quality. Generally, the content is required to be greater than 90%. In this process, the key is to control the temperature of lye. 1.148% alkali liquor concentration shall reach or be greater than 48% when it is evaporated through the primary and secondary effect evaporators, so as to prepare for the qualification of the following processes. This process mainly uses the heat generated by steam condensation to evaporate the water in the lye so as to increase the concentration. Therefore, it is necessary to ensure that the steam pressure and temperature meet the corresponding requirements:
真空状态下可以降低碱液沸点,所以为了节约能源和提升效率,蒸发器中的真空度要尽量保持一个比较高的状态。二效蒸发器碱液真空度处于0.085~0.094MPa,温度在75~85摄氏度之间,效果是比较好的。
The boiling point of alkali liquor can be reduced under vacuum, so in order to save energy and improve efficiency, the vacuum degree in the evaporator should be kept as high as possible. The vacuum degree of alkali liquor in the two effect evaporator is 0.085~0.094MPa, and the temperature is 75~85 ℃. The effect is good.
氢氧化钾
1、提高高压蒸气的压力和温度
1. Increase the pressure and temperature of high-pressure steam
升膜蒸发器以高压蒸气为加热介质,可以继续提高碱液的浓度,氢氧化钾碱液温度一般在190~210摄氏度之间比较适宜。
The rising film evaporator uses high pressure steam as the heating medium, which can continue to increase the concentration of alkali liquor. The temperature of potassium hydroxide alkali liquor is generally between 190~210 ℃.
2、氢气燃烧炉及熔盐系统
2. Hydrogen combustion furnace and molten salt system
浓缩制片过程需要使用熔融盐HTS为加热介质,而加热BTS是使用氢气燃烧炉来提供热源的。燃烧炉提供的热量要保证稳定,这样才能确保熔盐温度和流量的稳定,才能生成足够量的稳定热量来加热碱液,使经过浓缩器后的碱液温度达到标准要求,一般在380-400摄氏度之间。
Molten salt HTS is used as the heating medium in the process of concentration and production, while hydrogen combustion furnace is used to provide heat source for BTS heating. The heat provided by the combustion furnace must be stable, so as to ensure the stability of the molten salt temperature and flow, generate enough stable heat to heat the alkali liquor, and make the alkali liquor temperature after passing the concentrator meet the standard requirements, generally between 380-400 ℃.
3、保持系统密闭
3. Keep the system closed
为了避免碱液温度降低和发生潮解,降低其中的K0H含量,碱液在从浓缩器至片碱机的流动过程中需要尽量保持密闭状态,避免和空气进行接触。
In order to avoid the temperature reduction and deliquescence of the alkali liquor and reduce the K0H content in it, the alkali liquor shall be kept as closed as possible during the flow from the concentrator to the flaker to avoid contact with the air.
上面介绍的四种就是氢氧化钾主含量低的解决方法,通过上面的方法处理之后可以有效的提高产品的纯度。更多相关内容就来我们网站http://www.jinhao360.com咨询了解吧!
The four solutions described above are to solve the problem of low main content of potassium hydroxide, which can effectively improve the purity of the product. More relevant content will come to our website http://www.jinhao360.com Ask and understand!

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