Paraffin, this in chemical, food, medicine and other fields play an important role in the substance, its source do you know? Yes, it comes from that mysterious oil. Now, let me take you through the mystery of paraffin extraction.

The process of extracting paraffin from petroleum is actually not complicated. First, the lubricating oil fraction is initially separated by the distillation unit, and then divided into various fractions according to the boiling point range in the distillation tower. Next, after refining and forming the processing process, you can get the packaged paraffin products.

This is how paraffin wax "walks" out of oil. The processing and separation process of lubricating oil fractions can obtain lubricating oil and paraffin. The composition of paraffin depends on some properties of the lubricating oil fraction, and its boiling point range is basically the same as that of the lubricating oil containing this paraffin.

Then there is the separation process of oil wax. In order to obtain the oil with low freezing point, the wax must be removed. Although it is not possible to obtain solid paraffin with pure alkane, it is necessary to remove naphthene, iso-alkane, aromatics and other hydrocarbons present in the liquid oil in the distillate. In order to obtain paraffin wax with a certain melting point and hardness, hydrocarbons with lower melting points need to be separated from it. This process is mainly based on the difference in the freezing point of the oil and wax or the solubility of the solvent.

In China, it is usually dewaxing the lubricating oil fraction, and then further deoiling the obtained wax paste to obtain a certain melting point and hardness of paraffin wax. Although the processing capacity has been increased, this is more beneficial for further deoiling and refining of the wax paste.

In general, although the refining process of paraffin wax seems complicated, in fact, as long as the mystery of oil is mastered, we can easily extract the paraffin wax we need. This is the refining process of paraffin wax, I hope this simple introduction will let you have a deeper understanding of paraffin wax. In the production of waxes in the food industry and for medical purposes, especially through dewaxing treatment, we have two main methods: the pressing method and the solvent method. The solvent method usually uses a mixture of methyl ethyl ketone and toluene as the solvent. This solvent is more soluble to oil and less soluble to wax at a specific freezing temperature. By adding a solvent, the oil is moderately diluted and the viscosity is reduced, so that after freezing to a certain temperature, the wax begins to crystallize. Then, after filtration, the wax crystals in the wax and oil mixture can be successfully separated from the oil.

The oil obtained after the dewaxing of the lubricating oil fraction is further refined into a lubricating oil, and the separated wax is called wax paste. It is a poultry-like mixture containing about 10 to 20 percent oil that requires further processing to produce commercial paraffin.

The price of paraffin wax has a certain competitiveness in the market. In the process of wax deoiling, we have two main methods: solvent deoiling and sweat deoiling. The process of solvent deoiling is carried out after the solvent dewaxing process, and the filter cake obtained by solvent dewaxing is then added with solvent, and then filtered to obtain a crude wax with low oil content, which is what we call deoiling wax.

The refining of paraffin wax is the last step in the wax treatment process. After dewaxing and deoiling, paraffin wax has reached the quality standards of commercial paraffin wax, but it still contains some substances left over from the processing process, mainly a little gum, asphaltene, and trace amounts of variable olefin and aromatic polymers, as well as colored impurities generated by overheating in containers or pipes. At present, we mainly use two paraffin refining methods: adsorption refining and hydrorefining.

Adsorption refining is the use of highly active adsorbents to remove impurities in paraffin wax. Clay refining is the use of active clay as an adsorbent, the amount is generally between 2% and 8%. First, the clay and the molten paraffin wax are fully mixed and heated to a certain temperature, and kept for a period of time, so that the impurities in the paraffin wax are adsorbed on the surface of the clay. Then filter the clay and other mechanical impurities in the paraffin wax, you can get the color of the paraffin wax quality index.

Under the action of catalyst, hydrofining realizes paraffin refining through hydrogenation reaction under certain temperature and hydrogenation condition. This method can effectively remove colored and indefinite as well as odorous impurities, thus providing high-quality paraffin products. In our lives, this seemingly ordinary substance paraffin actually plays an important role. It is not only used in the manufacture of various industrial and household items, but also has a profound impact on our health. In order to improve the quality of paraffin wax, we need to transform the non-hydrocarbon components and unsaturated hydrocarbon components of sulfur, oxygen and nitrogen in wax. This process requires strict operation and professional technology to maximize the purity of paraffin wax.

However, the use of paraffin is much more than that. By hydrorefining, we can reduce the harmful thick cyclic aromatic hydrocarbons so much that they are almost no longer contained. It is amazing how much this little substance can do, and the process of making it is as complicated as the ancient legend of the tangle.

If you are interested in paraffin wax agents, want to know more about the relevant knowledge, you are welcome to give us a message. We will provide you with detailed information, including the source of paraffin wax, production process, application field and related precautions. This seemingly ordinary substance, in fact, contains a wealth of scientific and industrial value, worthy of our in-depth exploration.

In general, paraffin plays an indispensable role in our lives. With its unique nature and wide application fields, it adds color to our lives. And more secrets about it are waiting for us to discover and explore.