Malachite　fines　are　easily　produced　in　the　grinding　process,　leading　to　low　malachite　flotation　recovery.　Floc-flotation　of　malachite　fines　with　an　octyl　hydroxamate　and　kerosene　mixture　was　studied　to　improve　the　flotation　recovery,　using　microflotation,　microscopy　image　observations,　contact　angle　measurements,　and　Extended　Derjguin–Landau–Verwey–Overbeek　(EDLVO)　analysis.　The　results　showed　that　the　addition　of　octyl　hydroxamate　as　an　emulsifier　of　kerosene　enhanced　the　aggregation　of　malachite　fines　and　improved　malachite　flotation　recovery.　In　addition,　when　kerosene　droplets　were　smaller　and　of　uniform　size　distribution,　the　spreading　of　kerosene　droplets　on　the　malachite　surface　improved.　The　enhanced　spreading　of　kerosene　droplets　led　to　higher　coverage　of　kerosene　on　the　malachite　surface,　resulting　in　improved　hydrophobic　aggregation　and　flotation　recovery.　©　2019,　MDPI　AG.　All　rights　reserved.