Modified Products of Unsaturated Fatty Acids

Sulfuretted unsaturated fatty acids can be prepared from unsaturated fats and concentrated sulfuric acid. For example, the sulfation reaction of oleic acid can be given by the following [Pg.82]

In addition, the sulfation reaction produces a little by-product as follows [Pg.83]

The flotation performances of unsaturated fatty acids are improved by the sulfation reaction. [Pg.83]

According to K.B. Knight, hydroxyoleic acid can be prepared via addition hydrolysis reaction of methanoic acid using chloric acid or sulfuric acid as catalyst. The reaction can be given by the following [Pg.83]

It is well known that 9,10-octadecanoic acid shows good flotation performance in flotation. [Pg.83]