Phenol dosing measurement problem! ! !
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We have a product whose raw material is phenol. Since phenol is solid, it needs to be melted before feeding, and the feeding quantity is not an integer, so there is a measurement problem. I don’t know how friends who have used phenol solved it.
It’s not clear what you said about phenol being a solid. What we use is a liquid.
The melting point of phenol exceeds 30 degrees, how can it be a liquid? I'm still in the north, but there's just a bit of surface melting in the summer.
Feel sorry! The raw material used by our company to produce nonylphenol is phenol. When unloading the truck, I saw that they all use pumps. I just asked about it.: It turns out to be preheated first. Its melting point is 43 degrees.
Since the feed needs to be liquid, it’s easy to handle! There are many flowmeters for measuring liquids. You can add a flowmeter to solve the problem. If higher measurement accuracy is required, you can use an imported mass flowmeter.
Back upstairs, it’s not that you need to use liquid for feeding, but solids cannot be fed. Melting is the last resort. I’m afraid it won’t work with a flow meter, because it will solidify when the temperature is low, so the flow meter will not need to be cleaned frequently! ! ! This post was last edited by ddc805 on 2009-2-18 21:06 ]
Insulated pipes can be considered for flow meters and pipes. For the treatment of phenolic wastewater, macroporous adsorption resin can be considered. gfmin@sina.com ,13991330291
Haha, we feed materials in a vacuum and use the most primitive scales.
Our method is to put phenol in barrels. After heating and dissolving, it is pumped into the reaction kettle with an air pump and weighed with an electronic scale. It is very accurate.
We are also the same as LS. In fact, it is the same as other liquid barrel materials. But please be careful to wear protective equipment and be careful of splashing.
I don’t know if phenol can be added in one go. It would be more troublesome if the reaction is to be done dropwise. If it can be added in one go, it can be dissolved and weighed before being put in.
The key is that the input is not an integer. It is easy to melt, but it is still difficult to measure accurately! ! !
The raw materials and products we used to produce basically have melting points around 50 degrees, and the main feeding methods are: 1. When the quantity is large, excessive melting will be measured by flow rate. ； 2. Quantitative melting, all melted materials are added to the reactor ； (Bag raw materials) 3. Barrel materials are sucked into the reactor through the vacuum system by melting and then weighing. ； 4. Materials from large tank trucks are unloaded by heating and stored in storage tanks about 10 degrees above the melting point of the materials. They are transported by pumps when used and purged with nitrogen after use.
Wouldn’t it be easier to calculate if it has weight? It's easy to handle whether it's solid or liquid. Didn't the poster make it clear?
You can use insulation and heating pipes to keep the phenol in a liquid phase, and then you can easily measure the flow rate.
What type of flow meter is generally used to measure liquid phenol?
This post was last edited by jesschen136 on 2009-5-10 12:37. Phenol can be dissolved in another raw material of the reaction (if the other raw material is not solid) and then it will be liquid and can be fed. As for the quality, weigh the mass of another raw material before dissolving, then weigh the total weight, and subtract it to get the mass of phenol. If phenol is not enough, add more phenol. If phenol is excessive, add another raw material, and then feed the reaction after mixing. Any flow meter can be used.