Processing & Handling
Consider these diaphragm pumps when space is limited
A PTFE diaphragm permits compact construction of this diaphragm pump, and offers cost savings for high-pressure applications. A patented pressure-supported diaphragm-fixation system is used, so that the fixation is structurally prevented from expanding during the pressure stroke. No auxiliary seal…
A catalyst line with low or zero rare-earth metals
Grace Davison (Columbia, Md.; www.grace.com) has commercialized a set of catalysts and additives for fluid catalytic cracking (FCC) that contain either zero or low rare-earth metal content. The new product family, known as Replacer, includes new catalysts for processing both…
Focus on Valves and Actuators
Modular valve construction allows for custom solutions The Entech DRV-BN non-slam nozzle check valve (photo) has a modularity that allows for customized solutions, as well as in-field reconfiguration and a consistent spring force mechanism for quick and easy maintenance. The…
A chemical-transfer hose for enhanced safety
Chemfluoro Convoflex WCSR Multipurpose Chemical Transfer Hose is designed for bulk-chemical transfers where corrosive chemicals, such as acids, may damage the stainless-steel braid commonly used as a cover on transfer hoses. The new hose is said to provide longer service…
Waelz slag used in commercial ceramic bricks
Researchers from the University of Cantabria (Santander, Spain; www.unican.es) have developed a process for incorporating Waelz slag into ceramic clay construction bricks, offering an alternative for disposal of the industrial byproduct. The engineers replaced between 20 and 30% of clay…
This one-step route to cellulosic ethanol features a multitasking yeast
The research group of professor Akihiko Kondo at Kobe University (Kobe City, www2.kobe-u.ac.jp/~akondo/index_English.htm) has developed a one-step, pretreatment process for making bioethanol from cellulose and lignocellulose. The process uses an ionic liquid — which converts cellulose into a gel —…
Process for renewably sourced polyols licensed
A process for making polyols from soybean oil and glycerin has been licensed by its developer, Battelle (Columbus, Ohio; www.battelle.org), to Emery Oleochemicals Americas (Cincinnati, Ohio; www.emeryoleo.com), who intends to produce the renewably sourced polyols at prices similar to those…
NACE-compliant check valves for high pressures
This new range of high-pressure check valves is constructed of corrosion-resistant materials that are compliant with the National Assn. of Corrosion Engineers (NACE) MR0175/ISO15156 standards, which makes them suitable for harsh-duty applications, such as chemical injection in oil-tool applications. The…
Gas-Liquid Mixing: Physical Considerations
Gas-liquid reactors in the chemical process industries (CPI) have increasingly been designed to handle larger manufacturing scales. Since gas-liquid reactors can represent substantial capital and operating costs for the user, optimizing mixing and maximizing productivity are critical. The need for…
Single-use bioreactors for cell culture applications
UniVessel SU (photo) is a single-use bioreactor with 2-L working volume for small-scale protein expressions or process-optimization studies involving mammalian, insect and plant-cell cultures. The reactor is irradiated prior to delivery and is designed to the same safety standards required…