Extraction of metals, such as lithium, from laterite ores is usually carried out through solubilization of metals by acids, such as sulfuric and hydrochloric acids. However, substantial metal recoveries from laterites have been achieved only through thermal pre-treatment of laterites,…
Aither Chemicals LLC (South Charleston, W.Va.; www.aitherchemicals.com) is planning to build a commercial-scale plant based on a catalytic ethane-cracking process that uses 80% less energy and generates 60% less carbon dioxide than conventional steam-cracking of ethane. The company has refined…
One of the most significant limitations on the operation of dynamic compressors (axial and centrifugal compressors) is the low-flow limit known as “surge”. A sudden valve closing, such as for emergency shutdowns or for a suction/discharge valve, presents significant challenges…
The prices of low-voltage variable frequency drives (VFDs) have declined substantially since they were introduced, while the cost of power has increased. Normal project economics will now justify these VFDs — which go up to 375 kW (500 hp) or…
Many CPI applications require the injection of chemicals, such as corrosion inhibitors, precipitation inhibitors, oxygen scavengers and countless others, into the process during operation. Follow these tips to design and operate a system that ensures accurate delivery of performance chemicals,…
The new V Series modulating ball valve is designed for controlling pressure, temperature flow and level. The valve body is available in carbon or stainless steel with NPT, Socket Weld, Tri-Clamp and 150# or 300# flanged end connections. Sizes are…
The new high-performance ultraviolet (UV) absorber Hostavin 3330 disp. XP enhances the durability and UV protection of waterborne coatings, enabling them to reach the performance of conventional solvent-borne systems, says the producer. Hostavin 3330 disp. XP has an active UV…
By expanding the valve line to include drive sizes up to 130 mm, globe valves, angle seat and diaphragm valves of the Element Series can now be used to achieve fittings up to orifice dia. DN 50. The expanded area…
This company has unveiled an innovative, flush-batten-aluminum geodesic dome design, which may be considered a new paradigm in engineered cover technology. OptiDome features a double web I-Beam for strength and stability, plus optimized patent-pending, batten seal technology that eliminates environmental…
Manual operators are often included on solenoid valves to enable functional checking during startup and commissioning. These operators are then removed prior to the plant being handed over to operations personnel to prevent potential trips or unplanned shutdown. The new…