Microcrystalline Wax Literacy
Thread Content
We need food-grade microcrystalline wax, but we have not found a suitable product in the country. I think domestic manufacturers should be able to supply such products, but there are some technical quality issues that require more in-depth communication between supply and demand. I mainly make food additives. This is my first time coming into contact with food-grade petrochemical products. I hope everyone can help me with my literacy. My question is as follows: 1. The types of microcrystalline wax are divided according to their melting points. So how to control the melting points of the products during the production and processing process? Is it possible to produce according to customers' special requirements for melting point? 2. What is the general refining process? What are the main refining methods? Should different refining methods result in significant cost differences? 3. For synthetic food additives or pharmaceuticals, since the synthesis process is basically fixed, the types of impurities produced during the synthesis process are basically fixed. But can petrochemical products be considered: Will the impurities in it vary greatly due to the use of crude oil from different origins? Or even require a completely different refining method? 4. If the quality control process of food additives or pharmaceuticals is produced through chemical synthesis, I feel that there is basically no control over microcrystalline wax. What is the actual process like? For example, how to determine, detect and control the types and contents of impurities in finished products.
1. Microcrystalline wax is classified according to the dripping melting point (paraffin wax is classified according to the melting point). The dripping melting point is mainly determined by the cutting plan.； 2. Generally there are clay refining (physical method) and hydrogenation refining (chemical method) ； The refining cost of clay is low, and the effect of hydrogenation and refining is good. It can effectively remove sulfur, nitrogen and condensed ring aromatic hydrocarbons, greatly improve the color and light stability of the product, and control the content of carcinogens such as condensed ring aromatic hydrocarbons. ； 3. Different crude oil origins have a certain impact, but the cutting plan and preliminary processing are very important. ； 4. Food grade mainly controls the content of carcinogens such as condensed aromatic hydrocarbons in products. I am not very clear about the specific indicators. This is my little understanding, I hope it can be helpful, please correct me if I am wrong.
let me answer your question: 1) Microcrystalline wax is also called ozokerite. Its brand uses the dripping melting point, while the brand of paraffin wax is distinguished by the melting point. The two are different. ； 2) Microcrystalline wax can be divided into 67#, 75#, 80#, 85#, and 90# according to the drop melting point. According to the refining depth, it can be divided into fully refined, semi-refined, food grade, etc. With microcrystalline wax as the main component, special wax or special wax can be produced according to market and customer requirements. There are many varieties and brands, such as chewing gum special wax, emulsified wax, etc. * * Wax, rubber protective wax, etc. ； According to the production methods of microcrystalline wax, there are synthetic microcrystalline wax and purified microcrystalline wax. The production of purified microcrystalline wax depends on the characteristics of crude oil. my country's Nanyang crude oil, Shenbei crude oil, and Daqing crude oil can produce purified microcrystalline wax. Nanyang crude oil production is the best, with high yield and full variety. 3) The microcrystalline wax production process is to obtain vacuum residue oil through atmospheric and vacuum distillation of crude oil, and then carry out propane deasphalting. The deasphalted oil is then subjected to solvent refining, solvent dewaxing, clay supplementary refining or hydrogenation supplementation refining. Food grade must undergo hydrogenation supplementation refining and is required to pass the US FDA test standards. 4) Currently, there are only 6-7 companies in China that produce microcrystalline wax. Among them, Nanyang Paraffin Wax Fine Chemical Factory has the most complete varieties. Its food-grade microcrystalline wax has passed the FDA test in the United States and is exported to Europe. The factory often produces special waxes or special waxes according to customer requirements. 5) It is recommended that you contact the factory: The sales department phone number is 0377-63836100. This is not an advertisement. I have been engaged in technical and management work in this factory for a long time, including the production and development of wax.