Process for the production of titanium and zirconium hydrogen peroxide products

Claim 1

PROCESS FOR THE PRODUCTION OF TITANIUM AND ZIRCONIUM ADDITION PRODUCTS PARTICULARLY SUITED TO BE ADDED TO A PLATING BATH CONTAINING A CYANIDE SELECTED FROM THE GROUP CONSISTING OF CADMIUM CYANIDE AND ZINC CYANIDE, SAID PROCESS COMPRISING: PREPARING A SUBSTANTIALLY SATURATED AQUEOUS SOLUTION OF A SALT OF A TETRAVALENT METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM, SAID SALT BEING SELECTED FROM THE GROUP CONSISTING OF THE FLUORIDES, CHLORIDES AND SULFATES AND SAID TETRAVALENT METAL; ADDING AN ALKALI SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDES AND AMMINOUM HYDROXIDE TO SAID AQUEOUS SALT SOLUTION WHILE MAINTAINING THE SOLUTION AND RESULTING PRODUCTS AT A TEMPERATURE BELOW 10*C.; PHYSICALLY SEPARATING THE THEREBY PRODUCED PRECIPITATED HYDROXIDE FROM THE REMAINING LIQUID; THEN REACTING SAID HYDROXIDE WITH A CHEMICALLY EQUIVALENT QUANTITY OF HYDROGEN PEROXIDE IN THE PRESENCE OF BETWEEN 1% AND 5% BY WEIGHT OF SODIUM PYROPHOSPHATE BASED ON THE HYDROGEN PEROXIDE; AND RECOVERING THE METAL HYDROXIDE-HYDROGEN PEROXIDE ADDITION PRODUCT, SO PRODUCED.