The crude reaction product withdrawn from the reactor is diluted with water and dilute aluminum sulfate solution to produce a final product having a density of 1.33, corresponding to about 11 pounds aluminum su
The solution employed for amalgamation is conveniently mercuric nitrate or basic mercuric acetate prepared by dissolving mercury in nitric acid or by dissolving mercuric oxide HgO, in acetic acid, respectively. Other salts of mercury may be used for the purpose such as the bichloride, sulfate, etc...
(NH4F2) plus≅1 part aluminum sulfate [Al2(SO4)3.8H2O]; (ii)≅99 parts NH4F2plus≅1 part aluminum powder dissolved in the activator bath; (iii)≅99 parts NH4F2added to a nitric-sulfuric acid solution wherein≅1 part aluminum is dissolved per ≅99 parts NH4F2--e.g., by ...
the fluoropolymer aluminum bond strength is in excess of about 6 pounds per inch of width and generally in the range of from about 7 pounds to about 23 pounds. In this aspect of the invention, the fluoropolymer is bonded onto the conversion coated aluminum according to the method of this in...