Application of H-1850 High Speed ​​Centrifuge in Separation of Petroleum Sulfonate

The application of high-speed centrifuge in the production of petroleum sulfonate, petroleum sulfonate as a lubricant additive started late in China, began small-scale production in the 1950s, and introduced synthetic sulfonate technology from the United States in the mid-1980s. The varieties produced are comparable to those of foreign countries, but there is still a certain gap in quality. High-speed centrifuges can perform slag separation in the production of petroleum sulfonates.

Centrifugal separation of petroleum sulfonate de gravity separation technology

Gravity separation is based on the difference in density of the components in the mixture, the heavy phase sinks to the bottom of the container, and the light phase floats on the surface, forming a certain interface between the light and heavy phases. The speed of stratification is affected by the difference in density of the light and heavy phases of the composition mixture. The greater the difference in density, the faster the separation speed. In the sulfonate production process, gravity separation removes only large particle slag. The large particle acid slag and calcium slag in the oil product are about 0.3 g/cm3 larger than the oil. The smaller microparticulate acid slag and calcium slag are suspended in the oil in an emulsion, and it is difficult to separate from the oil by the density difference, and it is necessary to rely on mechanical separation technology to separate.

Separation technology of centrifuge in petroleum sulfonate production

In the quality index of petroleum sulfonate, the impurity content is one of the important indicators for testing sulfonate, and has become an important factor restricting the production of sulfonate. How to effectively separate impurities from crude petroleum sulfonate and completely separate microparticle acid slag from acid oil has become a bottleneck restricting the quality improvement of petroleum sulfonate series products. The application of high-speed centrifugal technology is fundamental. Solved this problem.

When the container containing the mixed liquid rotates around its own axis, since the two components of the mixed liquid are different in weight, they are subjected to different centrifugal forces, and the heavy phase in the mixed liquid is subjected to a large centrifugal force, thereby allowing petroleum sulfonic acid. The slag in the salt is separated.