What is the difference between neutralization and saturation?

Neutralization deals with the buffering or neutralizing of acids and bases. You change the pH of either an acid or a base by adding H+ ions to a base solution or adding OH- ions by adding a base(alkali) to an acid solution. Ideally you are neutralizing either one to a neutral pH condition which is "7" on the pH scale.

Saturation on the other hand deals with how much solute (solid) you can disolve in a solvent. As you add solute to solution it can only disolve a certain amount before the solvent becomes "satutated" and no more solute will desolve into a homogenous blend with the solvent. You then see precepitants start coming out of solution and falling to the bottom of the container the solution is contained in.