Processing & Handling
"Pump Wisdom" book reviewed by consultant Grossel
Pump Wisdom: Problem Solving for Operators and Specialists By Heinz P. Bloch. John Wiley & Sons Inc., 111 River Street, Hoboken, NJ 07030. Web: wiley.com. 2011. 224 pages. $49.95. Reviewed by Stanley S. Grossel, Process safety and design consultant, Clifton,…
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…
Lightweight diamond aerogel
Researchers at Lawrence Livermore National Laboratory (LLNL; Livermore, Calif.; www.llnl.gov) have created a nanocrystalline diamond aerogel. The new aerogel was produced by compressing a standard carbon-based aerogel precursor in a laser-heated diamond anvil cell, which consists of two opposing diamonds.…
Rubber manufacturing process allows in-mold curing
Along with an innovative elastomeric compound, scientists at Federal Mogul Corp. (Southfield, Mich; www.federalmogul.com) have developed a rubber manufacturing process that eliminates the need for curing in a batch oven after molding. The proprietary compound, known as K16, is intended…