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  • The Use of Inhibitors for Chmical Cleaning of Industrial Equipment (.pdf)
    to the longevity of this costly equipment is the maintenance and routine cleaning of the equipment for the removal of scale and deposits. Inorganic acids, organic acids and chelating solvents are typically employed for this purpose. The addition of corrosion inhibitors to reduce attack on the base metal
  • The role of sodium silicate
    silicate thus had a measurable chelating effect on calcium ions. This chelating effect was tested in laboratory deinking studies. Samples of newsprint were pulped in a 25l Lamort laboratory pulper using a range of pulper water compositions. The pulps were floated in a 20l flotation cell. The brightness
  • Passivation and the Passive Layer
    of sequestering or "chelating" specific contaminants found on metal surfaces is not as complicated as it may. seem. Chelants, according to ASTM-A-380, are "chemicals that form soluble, complex molecules with certain metal ions,. inactivating the ions so that they cannot normally react with other
  • ACID SEPARATION FOR IMPURITY CONTROL AND ACID RECYCLE USING SHORT BED ION EXCHANGE
    operation at higher flow rates and reduces the length of the mass transfer. zone. This is particularly important for chelating resins, which have very slow exchange. kinetics. Work by Price [4] indicates that the exchange rate is inversely proportional to the. square of the particle diameter. Thus, halving
  • Zing Electroplating
    by complexing. ity of a plating bath to deposit a uniform or chelating agents such as sodium glucon-. P. L. thickness of metal on areas of high and low. ate, triethanolamine, or polymeric amines. A. T. current density. The throwing power of a The resulting baths presented problems with. I. N. G.
  • AQUEOUS CRITICAL CLEANING: A WHITE PAPER - APPLICATIONS IN PHARMACEUTICAL MANUFACTURING
    are used on oily residues and acidic cleaners are used on inorganic. residues. Robust fully formulated cleaners that contain wetting agents, emulsifiers,. dispersants, chelating agents and anti-redeposition agents will give the broadest and most. robust residue removal. Different types of residues
  • Examining ZiNi Alloys and Post Plate Fabrication
    sites is classified as bidentate, and three sites as tridentate. Ethylenediamine, which has two amino groups, is bidentante. Citric acid has three carboxylic acid groups, and the anion is tridentate. One of the most commonly used chelating agents is ethylenediamine tetraacetic acid or EDTA. The anion

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