Inorganic Chemical Extraction

Conduct Research

• MICRO:Extreme Silicon by Peng Sun, p.41 (April '99)
  . 4. D Rathman, "Trace Analysis of Inorganic Contamination on Si-wafer Surface by Ion Chromatography," The Electronic Society Extended Abstracts 91 2 (October 1991): 816. 5. S Tan, R Liu, and H La, "Monitoring of Ionic Contamination on Silicon Wafer Using Ion Chromatography" (paper presented...
• Calcium and oxalate in Tembec Maple BCTMP line
  is operated with three highly closed water loops, as shown in Fig. 1, i.e. refining-washing, latency-washing, and washing -bleaching. The circulation of water in the system causes accumulation of organic and inorganic chemicals, such as oxalate, extractives, lignin, hemicelluloses, cellulose, calcium...
• MICRO: Tool/Fab Automation
  differentiate between the chemical states of the atoms (e.g., inorganic versus organic fluorine) but cannot identify the organic species. Table I summarizes the advantages and disadvantages of the three methods. Analytical. Technique. Advantages. Disadvantages. XPS. Detects all surface atoms...
• Interphex 2006 Preview: The Best of the Phex
  turnkey solutions to the nutraceutical and pharmaceutical industries in the areas of humidity control, VOC abatement, mist elimination and water treatment. Novasep Process manufactures membranes and systems for extraction, concentration and purification ceramic and inorganic tubular membranes...
• Scale deposit problems
  of inorganic fillers such as clay, calcium carbonate, and titanium dioxide are employed in a variety of paper and board making processes. Poor filler retention can result in build up of filler in the white water eventually leading to deposit problems such as felt and wire filling. The fillers can also...
• Use of OWL (T)
  . OWL(T) in Eo and ESP Catch PurgingOWL vs ESP Catch The purging of ash from the recovery boiler electrostatic precipitator is an established method of purging chloride and potassium. When black liquor is burned in a recovery boiler a portion of the inorganic chemicals are vaporized...
• Catalyst potential of laccase-mediator systems
  ), Violuric acid (VA) and N-Hydroxy-Acetanilide (NHA). Recently, transition metal complexes, such as K4Mo(CN)8 or K4W(CN)8), were suggested as a new class of laccase mediator for pulp bleaching3. Another approach to enhance the efficiency of oxygen bleaching is the use of inorganic metal-oxygen...
• The effects of wood
  , and to install effective metals removal processes. Since many of these options are available, system closure in pulp and paper mills may be instituted without too many problems being caused by wood resin. Dissolved and colloidal substances (DCS) in pulp and paper manufacture include metal ions, inorganic anions...
• MICRO:Behind the Mask
  used in the air-handling systems in photolithography bays can act as reaction beds to promote the combination of acidic and basic species. Figure 1: NH3, SO2, and organic levels in a new cleanroom over a 17-month period. While inorganic levels remained relatively steady, condensable organic levels...
• MICRO: Products
  annealing, polyimide bake, SiLK annealing, and compound semiconductor annealing. Chemical Analyzer. Metara. Sunnyvale, CA. The LMS-300 chemical constituent analyzer performs fast, direct quantification of inorganic compounds such as copper and chloride, organic additives, and breakdown products...

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