Desire to grow, explore and innovate. Most importantly, from the beginning, it was a fixed idea: to achieve the highest quality level. Reference points for the design and manufacture of vacuum pumps and dryers in the main production processes of pharmaceutical and cosmetic industries.
Important innovations in vacuum pumps, due to the introduction of new technologies, completely updated to ensure the highest performance, fuel consumption can be neglected.
Customized solutions for any vacuum process applications and any production requirements are designed and manufactured according to specific customer needs.
These are the history and expertise of EVP. A solid foundation, starting every day, to implement new solutions and create things that did not exist before.
Fine chemicals used as raw materials in pharmaceuticals, biopharmaceuticals and agrochemicals are different from basic chemicals due to their high purity.
The production of fine chemicals involves many synthesis and purification processes using vacuum technology. These methods include reaction, drying, distillation and crystallization. Vacuum pumps for fine chemicals industry
Chemical reactions are widely used in the synthesis of compounds, in which vacuum is needed to avoid high temperatures and remove oxygen and secondary products. The reaction usually takes place at about 10/20 mbara. Vacuum reactors usually have volumes of 1 m 3 to 10 m 3. For these applications, it is usually sufficient to use a vacuum pump with a nominal output of between 80 and 380 meters per hour. Here, two-stage is the ideal solution because it has corrosion-resistant solvents and reliability in the most demanding working environment.
The fields of using vacuum pumps include the following synthesis:
Compounds Used in Agricultural Chemistry
The piston pump is the only technology available for lubrication market performance additives, because it has corrosive solvents and a large number of powder materials.
Industrial vacuum pump for drying process
Vacuum drying is performed immediately after centrifugation or filtration. This is a process of removing moisture from wet solids by introducing heat. The operation is carried out in vacuum to dry the thermosensitive material at temperatures below other possible temperatures. In the fine chemical industry, vacuum drying is a batch operation, and various technologies can be used, depending on the products involved.
Raw materials for pharmaceutical industry, two-stage Roots compressor version using piston pump
The basic two-stage version of the vacuum pump is used for raw materials in the biopharmaceutical industry.
Vacuum distillation is a process in which the pressure above the liquid mixture is reduced to a lower vapor pressure than that of the latter, resulting in the evaporation of more volatile liquids. This method is used when the liquid to be distilled has low volatility (Teb > 150 C) or can be chemically decomposed at temperatures close to its boiling point at atmospheric pressure. Vacuum distillation is also used to remove impurities from temperature-sensitive materials such as condiments. The pressure of distillation varies according to the compounds to be separated, ranging from near absolute vacuum to 60 mbar. Vacuum distillation column usually has a volume of 5 m3 to 20 m3. For these applications, it is recommended that vacuum pumps be combined with Roots compressors to increase nominal output and reduce limit pressure.
Applications of vacuum pumps include plant-based flavoring and condiment distillation for the cosmetics and food industries
Vacuum pump is a process of precipitation of solid compounds from solution. Crystallization is used in applications requiring very low operating pressure, very low absolute pressure and involving relatively small amounts of high value-added materials. Therefore, it is usually a batch operation. The crystallization cycle lasts for 2 to 8 hours. The pressure for crystallization can vary from near absolute vacuum to 30 mbar. Vacuum crystallizer usually has a volume of 1m 3 to 4m 3. For these applications, vacuum pumps must be combined with Roots compressors.
Because of the unpolluted vacuum and the continuous recovery of the extracted solvent, the vacuum pump can maintain the purity of the final product.