Blending is a fundamental chemical unit operation, and there are a handful of common ways to implement it. Blending applications can be either manual or automated, and can be carried out either as a batch or continuous process. There are…
This column is based on “Diammonium Phosphate Production – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/diammonium-phosphate-production-cost. Diammonium phosphate (DAP) ranks among the most important phosphate-based fertilizers, not only for its high nutrient content, but…
Chiyoda Corp. (Yokohama, www.chiyoda-corp.com) has been working on a new naphtha cracking process with the aim of producing more propylene and consuming less energy than existing naphtha thermal-cracking methods. The company has recently developed a new catalyst based on iron-…
Last month, the Precious Metals Chemistry business unit of Umicore AG & Co. KG (Hanau-Wolfgang, Germany; www.pmc.umicore.com) inaugurated its production unit for making trimethylgallium (TMGa) and triethylgallium (TEGa). The new facility uses a new, patented production process to make these…
The Sabatier reaction, in which H2 and CO2 react at temperatures of 300–400°C in the presence of a nickel catalyst, or an alumina-supported ruthenium catalyst, is one way to reduce CO2 into methane. Until now, however, it has been difficult…
Nippon Shokubai Co. (Osaka and Tokyo, Japan; www.shokubai.co.jp) has jointly developed a new process for biomass utilization in collaboration with professor Yuichi Kita at Kobe University (www.kobe-u.ac.jp). The process is highly efficient for decomposing lignocellulose into a group of water-soluble…
While demand for the artificial sweetener xylitol grows, expensive raw materials and low yields have kept production prices high. Now, a new process from S2G BioChem (Vancouver, B.C., Canada; www.s2gbiochem.com) aims to produce xylitol in a more cost-effective way, utilizing…
Natural gas vehicles (NGVs) are attractive because of the low cost and wide availability of natural gas, plus the ability to connect to residential and business gas lines for fueling. Among the challenges for using natural gas as a fuel…
Characterizing mixer impellers on the basis of power, flow, shear and efficiency Mixing has been defined as “the application of mechanical motion in order to create fluid dynamic effects that achieve a desired process result” [1]. The process result is…
Efforts continue to make nitric-acid production more efficient with lower emissions of greenhouse gases Like the ammonia used to make it, nitric acid (NA) continues to be produced by a process nearly a century old — the Ostwald process. Although…