Vaselin CAS 8009-03-8

1. Acid-white clay strategy
The acid-clay clay technique is a conventional Vaselin manufacturing technique and is still taken advantage of in your home and abroad. This process is to include sulfuric acid with a concentration of more than 98% into the reactor and mix the raw products at around 60% of the raw material amount. The action temperature level is kept at 70 ° C. After the response, the acid down payment is separated and watered down with alcohol to more get rid of the acid down payment. The acid-treated oil desires that put into one more clay refining container, and clay is contributed to decolorize it at relating to 140 ° C, and after that the thing is filteringed system.
The quality of the acid-clay clay approach is that it can produce things of far better top quality, the amount of compressed ring aromatic hydrocarbons can get to pharmaceutical grade levels, and various other proper indications can furthermore satisfy the top-notch signs of the Pharmacopoeia. This is the factor this standard process can exist for a very long time. The primary drawbacks of the acid-white clay technique for refining petroleum jelly are that the yield of the target product is as well low (regarding 50%) and a substantial quantity of acid deposit is developed that is challenging to utilize, seriously contaminating the setup and creating high manufacturing expenses.

2. Aluminum trichloride technique
In the 1960s, the aluminum trichloride technique started to be utilized in China to produce Vaselin rather than the acid-clay clay strategy The particular procedure is as follows: after the raw products are dried out, they react with aluminum trichloride in the reactor at a response temperature of 130-140 ° C. After the action, the oil continues to be decreased the impacts of and sped up with alkali service in the neutralization container. After removing the deposit, it is adsorbed and boosted by clay in the decolorization tank. The reaction temperature has to do with 120 ° C. The filteringed system and fine-tuned oil is business Vaseline. The yield of petroleum jelly developed by the light weight light weight aluminum trichloride strategy is more than that of the acid-white clay technique, and the consumption index is minimized, yet the top quality is a little also worse than the oil jelly generated by the acid-white clay method; the light weight light weight aluminum trichloride approach and medium-pressure hydrogenation and high-pressure There is a huge area in the excellent quality degree of oil jelly produced by hydrogenation in terms of shade, transparency, compressed ring great smelling hydrocarbon content, and so on

3. Hydrogenation strategy
Hydrogenation of oil jelly is a new treatment for creating oil jelly. In foreign nations, it is generally executed under the problems of 10, 20 or 30MPa and reduced fluid hourly room velocity. This procedure converts pointless elements in raw materials right into reliable components after response, so a product return near 100% can be obtained. Nevertheless, the light weight aluminum trichloride strategy or the acid-white clay approach changes pointless elements right into waste deposit and eliminates them. The slag discharge eliminates the reputable components and lowers the product return. Due to the product return, the refining deepness of the aluminum trichloride strategy or the acid-acid clay approach is in addition limited, therefore restricting the further renovation of item top quality. As a result, the hydrogenation technique to produce Vaselin transcends to the acid-blanket technique and the light weight aluminum trichloride method in terms of product return or premium quality.