METALLIC STEARATE

           METALLIC STEARATE
[CODE NO. 1618]

Stearates of aluminium, calcium, magnesium, and zinc  are known as driers and metallic soaps.  It has long been established that  the  metal  or cattier of the metallic soap is the active principle which accelerates the oxidation and  polymerization reactions associated with the drying of oils.  As many as twenty four metals are known to have activity, but the soaps of  cobalt, manganese,  lead, iron, calcium, zinc and zirconium  account  for the major share of present-day-use. Of these cobalt, manganese, lead and iron soaps are the primary driers.  Calcium, zinc, and zirconium soaps alone do not promote drying.  They are  useful only  in conjunction with one or more of the primary driers,  and thus  are  termed  auxiliary driers. The organic or a main portions of the metallic soaps used as driers act as carrying and solubilizing  agents. Because of their stability,  excellent salability, and low cost, soaps based on naphthenic acid, tall oil and 2- ethylhexoic acid account for the major  portion of the driers in use today.  Driers made with resin, oleic and linoleic acids have declined in use, but are still  manufactured for special purposes. Driers based on newly available  synthetic, tertiary  organic acids have been developed. These acids  are  in the  9-11  carbon range and thus have a higher acid  value than those with a larger number of carbon atoms, permitting driers  of higher  metal content.  Driers are available as  liquids,  solids and pastes, depending on the preference of the trade.  The  paint industry  shows  almost universal  preference  for  low-viscosity liquids because of their handling, constant and  reliable  metal content  and ready solubility.  Solid soaps are used only where solvents are objectionable  because of  dilution of  unwanted contamination, because the volatility of the solvent  is objectionable,  or because fire hazard is present. Pastes are used primarily in printing inks where the consistency is matched to that of the ink. The exact mechanism of the role of driers in the forming of solid, elastic protective films evolve carbon dioxide and water during drying.  Linseed oil, containing  driers and exposed in pure oxygen, absorbs large volumes of the gas over a period of several days.  The total amount of oxygen taken up by linseed oil films at solidification is lower when  drier  is present.   At the time approximately the same amount  of  carbon dioxide is evolved whether drier is present or absent.

PROJECT REPORT COVERS:

•         Introduction
•         Uses and Applications
•         Properties
•         Market Survey with future aspects
•         Present Manufacturers
•         B.I.S. Specifications
•         Manufacturing Process with Formulae
•        Cost Economics with Profitability Analysis
•         Capacity
•         Land & Building Requirements with Rates
•         List & Details of Plant and Machinery with their Costs
•         Raw Materials
•         Details/List and Costs
•         Power & Water Requirements
•         Labour/Staff Requirements
•         Utilities and Overheads
•         Total Capital Investment
•         Turnover
•         Cost of Production
•         Break Even Point
•         Profitability
•         Land Man Ratio
•         Suppliers of Plant & Machineries and Raw Materials.