The release of silver from industrial wastewater has caused serious environmental problems. Many methods have been developed to remove silver ions from industrial wastewater, including chemical precipitation, ion exchange, electrolysis, replacement, membrane and reverse osmosis. Several adsorbents have been used…
A new commercial manufacturing process for carbon nanotubes (CNTs) produces tubes in the range of 1–10 mm in length (5–12-nm dia.), two orders of magnitude longer than currently available CNTs, which typically have lengths from 5–20µm. “Despite attractive mechanical and…
Gas Innovations (La Porte, Tex.; www.gasinnovations.com) has signed a 15-year, pay-per-use agreement with Haldor Topsøe A/S (Topsøe; Lyngby, Denmark; www.topsoe.com) for a second on-site carbon-monoxide production unit, using Topsøe’s electrolytic Carbon Monoxide solution (eCOs) technology. The first eCOs unit in…
Plant Watch Linde starts up CO 2 plant in Fort Worth December 12, 2016 — Linde North America (Bridgewater, N.J.; www.lindeus.com) started up a new carbon dioxide plant in Fort Worth, Tex. The plant, which has a production capacity of…
Moving 3-D printing beyond prototyping toward production of finished parts has driven innovation and spurred investment, but has also forced the industry to address a host of challenges Industrial use of 3-D printing (3DP; also known industrially as additive manufacturing;…
Tighter control, increased safety and versatility result from improved flow-measurement technology Flow monitoring and control are very important in the chemical process industries (CPI) because data gathered by flow-measurement equipment can pinpoint areas where a process can be improved and…
This sump pump ensures unrestricted flow The Series 900 Industrial Vertical Immersion Vortex Sump Pump (photo), available for service in industrial and municipal applications, provides an unrestricted flow since the impeller is not in contact with the solids being pumped.…
Mixing and blending of bulk solids is common in pharmaceutical and food manufacturing, specialty chemicals, explosives, fertilizers, glass and ceramics, detergents and resin industries. This column provides information on batch versus continuous blending mechanisms. Batch versus continuous Batch blending processes…
Advanced high-alloyed stainless steels with austenitic properties can address corrosion concerns in challenging phosphoric and nitric acid processes The growing worldwide demand for fertilizer has created a significant increase in production levels. As a consequence, operators face mounting pressure to…
Corrosion-induced failures are frequent in the electronics products used in control rooms, but proper environmental assessment, control and monitoring can help abate these concerns Electronic process-control equipment — from small remote sensors and instruments to plant-wide distributed control systems (DCS)…