Toyo Engineering Corporation

Saburo Matsumiya

Hideyuki Michiki

Katsuya Uehara

Tsuneo Tanji

Kenichi Yaginuma

Koichi Washimi

Keiji Saito

A process for the preparation of pellets is disclosed which comprises mixing an iron ore raw material with a pitch material having a softening point of 30.degree. to 300.degree. C. in an amount in the range of 0.5 to 5% by weight of the iron ore raw material, molding the mixture, and heating the molded material under a reducing atmosphere to remove arsenic contained therein.

Process for the preparation of pellets

In a method of treating heavy oil, in which a gas and a volatile oil fraction produced by thermally decomposing petroleum heavy oil are distilled off, a thermal decomposition residue withdrawn in the liquid state is brought into contact with a part of the volatile oil fraction as a solvent to extract the solven-soluble component in the thermal decomposition residue, and then an extraction residue is separated as solid particles from the solvent, an improvement is disclosed which comprises fractionating the volatile oil fraction used as the solvent into two or more sub-fractions having different boiling points from each other on condensing the volatile oil fraction in a fractionating column, and contacting the sub-fractions thus-fractionated with the thermal decomposition residue progressively from the highest boiling to the lowest boiling of the fractions to extract a solvent-soluble component.

Method of treating heavy oil

Growing community of inventors

Chiba, Japan

Saburo Matsumiya