On the hydrogenation of pentacarbon petroleum resin
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Our company is working on improving the hydrogenation process technology for C5 resin, involving pre-treatment – polymerization – (water washing and alkali washing) – hydrogenation. 95% of the work has been completed so far; however, there are several methods for processing the material after polymerization, each with its own advantages and disadvantages. We would like to discuss this with everyone!
How many ways do you have to handle it? List them out and discuss the advantages and disadvantages together.
Hydrogenation after polymerization is the most critical process step, and the Ni catalyst used for hydrogenation plays a decisive role here. It is reflected in the difference in chroma after hydrogenation. There is also the feeding method during hydrogenation, whether it is batch or continuous, as well as the method for separating the catalyst from the product after hydrogenation. The issue of formula ratios required to produce different resins. If the original poster has any questions, we can discuss them in detail.
Is it polymerization of the entire C5 fraction, or polymerization of a single component after separation, such as DPCD? Also, whether heat polymerization or cold polymerization is used for the polymerization. Hydrogenation is a form of resin modification. Due to its low relative molecular mass, high content of organic residual chlorine, noticeable color, and high proportion of unsaturated olefins, C5 petroleum resin has shortcomings in terms of thermal stability, weather resistance, acid resistance, solvent resistance, and compatibility. These defects can be overcome through hydrogenation modification. As casually mentioned here, whether to use a continuous or batch process, and whether to employ a fixed-bed reactor or a reaction vessel, the catalyst plays a crucial role in determining the quality of the resin, such as its color and softening point. Resin hydrogenation involves a high technical threshold, and secrecy is maintained due to the closed nature of this industry. I hope everyone will discuss with one another to improve the overall level of the industry in the country.
Single-component polymerization after separation, isopentadiene. Cryopolymerization. At present, there are no issues with our hydrogenation process or catalysts, as they have been verified; however, heat polymerization was used previously and caused some problems, so cold polymerization is now being employed.
Well, master the techniques by exploring the process route through practical teams. Has this technology been put into commercial use? It’s still just in the experimental stage. I’m quite curious, as there are few mature technologies in China for improving the properties of resins through hydrogenation modification
The process for producing carbon five hydrogenation resins has been in normal use by others for many years already; what more needs to be improved? I have complete process packages for both carbon five hydrogenation resin plants and carbon nine hydrogenation resin plants. Is there anyone interested? :lol:lol
Could you please provide the information? Thank you very much. Email: whsp8422@163.com
Hello, I would like to learn more about the resin hydrogenation process. Could you please provide contact information so that I can ask some questions?
13795382798 Liu