Process for making a magnesium linear alkyl benzene sulphonate anionic detersive surfactant flake

A process for making a magnesium linear alkyl benzene sulphonate anionic detersive surfactant flake, wherein the process comprises the steps of:

• (a) obtaining a magnesium linear alkyl benzene sulphonate anionic detersive surfactant paste,
• wherein the paste comprises from about 30 wt % to about 90 wt % solid material and from about 10 wt % to about 70 wt % water,
• wherein the solid material comprises from greater than about 50 wt % to about 100 wt % linear alkyl benzene sulphonate anionic detersive surfactant, and wherein the linear alkyl benzene sulphonate anionic detersive surfactant comprises from about 70 wt % to about 100 wt % magnesium linear alkyl benzene sulphonate anionic detersive surfactant;
• (b) contacting the paste to a rotatable heated drum dryer;
• (c) rotating the heated drum dryer and drying the contacted paste on the rotating heated drum dryer;
• and
• (d) removing the dried contacted paste from the rotating heated drum dryer to form the magnesium linear alkyl benzene sulphonate anionic detersive surfactant flake,
• wherein the magnesium linear alkyl benzene sulphonate anionic detersive surfactant flake comprises from greater than about 50 wt % to about 100 wt % linear alkyl benzene sulphonate anionic detersive surfactant,
• and wherein the linear alkyl benzene sulphonate anionic detersive surfactant comprises from 70 wt % to about 100 wt % magnesium linear alkyl benzene sulphonate anionic detersive surfactant.