Any person, foreign or domestic, doing business in the state of Kansas, and engaged in the production, manufacture, distribution, sale or purchase of any commodity in general use, that shall intentionally for the purpose of destroying competition, discriminate between the different sections, communities, or cities of this state, by buying at a higher rate or selling at a lower rate, any such commodity, in one section, community or city, or any portion thereof, than is charged or paid for such commodity in other section, community, or city, after equalizing the distance from the point of production to the factory, for distribution, and freight rates therefrom, shall be in violation with the provisions of this act.