It is unlawful for any processor to remove, from this state or beyond his ownership or control, any farm product which is delivered to him, or any processed form of the farm product, to which any of the liens provided for in this chapter has attached, except for any of such product or processed product as may be in excess of a quantity on hand which is of a value that is sufficient to satisfy all existing liens. Furthermore, this section shall not prohibit the sale of any farm product or processed form of the product to which such a lien has attached, so long as the total proceeds of the sale are used to satisfy obligations to producers which are secured by a lien established pursuant to this chapter.