Establishing good control over vacuum processes has numerous benefits, such as helping to improve process yields, achieve more repeatable results, and reduce process times. And there are several options for controlling vacuum processes to achieve these various benefits. This post…
In part 1 of this white paper, we reviewed the general advantages of using dry, chemical-resistant diaphragm pumps for process scale-up applications. In part 2, we will delve into the process of configuring the mini-plant in order to realize the…
Engineers can make better use of the results of process simulations by automatically exporting data into heat and material balance tables in Microsoft Excel Chemical engineering projects require process simulation to validate the chemical reactions and mechanical operations of the…
An overview of the codes and standards that are most pertinent to chemical processing facilities Moving a process fluid from one stage of its processing cycle to the next requires the transfer of fluids between pressure vessels, through pressure piping…
Introduction Historically, mini-plants have utilized oil-sealed rotary vane vacuum pumps as a vacuum source because they provide relatively high flow rates and because they can reach relatively deep vacuum levels, such as 10-3 mbar. The same can be said of…
VACUUBRAND's dry, chemical resistant pumps provide an ideal solution for use in process development, scale-up work, and kilo labs. With no sealing fluid to replace, our dry pumps provide a low maintenance, low operating cost alternative to oil-sealed rotary vane…
Presentation. Pretty simple, right? It’s a liquid, seal it in containers in a range of sizes. Yes, it seems simple, but there are a few complexities. Here’s a summary of delivery presentations for Paratherm products, which include heat transfer…
Pirani gauges are a group of indirect measuring pressure gauges which measure the thermal conductivity of the gas sample. Pirani gauges are typically used in the fine vacuum range (1 torr - 10-3 torr), as this is the range where…
This column is based on “Terephthalic Acid Production from p-Xylene — Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/terephthalic-acid-production-cost. Terephthalic acid is an aromatic dicarboxylic acid, mainly used to produce saturated polyesters, primarily PET (polyethylene…
Understanding pump internals, especially the various sealing and coupling arrangements, is a critical step in selecting the optimal pump There is a significant risk for operators associated with the pump selection process. Economic issues, such as procurement and operating costs,…