Abstract: A method of salt grinding of pigments wherein the material to be ground is milled with a salt, an organic conditioner, and larger particles such as balls, nails, or in a strong kneader for comminuting the pigment to the desired state of subdivision. This grinding mass is made into a smooth flowing suspension by addition of more organic conditioning agent rather than solvents, as heretofore. The suspension is then passed through a decanter type centrifuge resulting in a sediment fraction containing most of the salt, some pigment, and some organic conditioning agent, and a liquid fraction containing most of the pigment, some salt and conditioning agent. The sediment portion is returned to the grinding mechanism where it is combined with a new batch of unmilled pigment for a subsequent milling cycle, while the pigment is separated by filtration from the liquid portion after some addition of water and flocculating agents. The filtration and wash liquors are combined.