Cerave Petrolatum CAS 8009-03-8

1. Acid-white clay approach
The acid-white clay method is the standard production approach of Cerave Petrolatum, which is still utilized in the house and abroad. The process is to include sulfuric acid with a concentration of more than 98%, according to around 60% of the raw product amount, into the response pot and also blend the raw products. The response temperature level is maintained 70 ° C. After the response, the acid residue is divided as well as watered down with alcohol to more eliminate the acid deposit. The acid-treated oil is then put in one more clay refining container, adding clay to decolorize at around 140 ° C, and afterwards filtering to get the product.
The attributes of the acid-white clay method are that it can produce better top quality items, the quantity of fused ring fragrant hydrocarbons can reach the pharmaceutical quality level, and other relevant indicators can also meet the top quality signs of the Pharmacopoeia, which is the reason why this typical procedure can exist for a long time. The primary negative aspects of the acid-white clay technique for refining Cerave Petrolatum are the low return of the target item (about 50%) as well as the manufacturing of a huge amount of acid residue that is hard to use, which seriously pollutes the atmosphere and creates high production expenses.
2. Aluminum trichloride technique
In the 1960s, the light weight aluminum trichloride method was utilized instead of the acid-white clay method to generate Cerave Petrolatum. The technical process is as follows: after the raw products are dried out, they are responded with light weight aluminum trichloride in a response kettle, and also the reaction temperature level is 130-140 ° C. After the response, the oil continues to be reduced the effects of and also precipitated in the neutralization tank with lye, and after that the slag is eliminated, and after that the clay is adsorbed and also refined in the decolorization storage tank. The vaseline prepared by the light weight aluminum trichloride technique has a greater yield of the target product than the acid-clay method, and also the usage index is minimized, yet the top quality is a little even worse than that of the vaseline prepared by the acid-clay method; the light weight aluminum trichloride method and also the medium stress hydrogenation and also high pressure The top quality degree of Cerave Petrolatum acquired by hydrogenation is quite different in terms of color, transparency, and also material of fused-ring aromatic hydrocarbons.
3. Hydrogenation
Hydrogenation of Cerave Petrolatum is a new procedure for the manufacturing of Vaseline, normally performed abroad under the problems of 10, 20 or 30MPa as well as lower fluid per hour area speed. The process is to convert the worthless components in the raw products right into efficient components after the reaction, so the item yield close to 100% can be obtained. However, the light weight aluminum trichloride method or the acid-white clay method turns the useless elements into waste residues as well as removes them, and the slag discharges remove the efficient parts, which decreases the product yield. Due to the product yield, the refining deepness of the light weight aluminum trichloride method or the acid-white clay method is additionally limited, thus limiting the further improvement of the item high quality. As a result, the production of Cerave Petrolatum by the hydrogenation approach transcends to the acid-clay technique and also the light weight aluminum trichloride method in regards to item return or high quality.