Processing & Handling
These drilling-mud mixers have advanced gearboxes
Drilling-mud mixers from this company feature high-efficiency gearboxes designed specifically for agitator service and have configurations for application requirements that are unique to mud-mixing. The advanced impeller technology enhances mixing performance, the company says, and proprietary analysis software is available…
Iron-based catalyst shows promise for alkene hydrosilylations
A catalyst in which iron atoms are complexed with the ligand pyridine diimine (PDI) has shown promise as a replacement for high-cost platinum-based catalysts for industrial olefin-hydrosilylation reactions. Developed by the research group of Paul Chirik at Princeton University (www.…
Making structured carbon fibers from polyethylene
Researches at the U.S. Dept. of Energy’s Oak Ridge National Laboratory (ORNL; Oak Ridge, Tenn.; www.ornl.gov) are developing a process that makes carbon fibers with customized surface contours from polyethylene-based fibers. The patent-pending technique uses a combination of fiber-spinning and…
Municipal solid waste is one feedstock for this bioethanol process
The technology surrounding a hydrolysis- and fermentation-based process that is capable of utilizing municipal solid waste (MSW) and biomass waste to produce cellulosic bioethanol at low cost is now available for licensing from its developer, TMO Renewables Ltd. (Guildford, U.K.;…
Centrifugal Compressors for CPI Plants
The growth in use of centrifugal compressors in chemical process industries (CPI) applications in recent decades has been brought about by four factors: 1) advances in dry gas seal technology; 2) modern aerodynamic, rotor-dynamic and thermodynamic knowledge and techniques; 3)…
New polysilicon granule-drying system boosts processing yields and purity
A novel cold-dry process makes possible the utilization of fine form-factor silicon, such as granules and sand-like fines, in the production of high-purity polysilicon for solar photovoltaic cells and semiconductors, where such fine-grained material would normally have to be sent…
Tubing for peristaltic dosing pumps
Peristaltic pumps work by compressing a tube against a circular pump housing with rollers on a rotating arm. The fluid that is ahead of the roller gets pushed forward, while new fluid is drawn into the tube by the vacuum…
This ball valve has pressed-end connections
A three-piece, stainless-steel ball valve features this company’s Smart Connect feature for joining pipes without welding. The ball valves are available in two grades of stainless-steel grades (304 and 316), in sizes from 0.5 to 2.0 in., and with more…
Battery performance is enhanced with these additives
One additive intended for use in lead-acid batteries for micro-hybrid gasoline engines, and another for lithium-ion batteries in electric vehicles, can improve battery performance. PBX51 is a performance additive designed to improve performance and lifetime for lead-acid batteries requiring high…
This gear pump delivers smooth flows up to 5 gal/min
The Model TG-300 variable-speed low-flow pump is a positive displacement gear pump designed for smooth, continuous flows from 0 to 400 mL/min (0–5 gal/h). Fluids compatible with aluminum, steel, Viton and Teflon-wetted materials and viscosities of 30–600 cSt can be…