Surfactant granules and process for the production of surfactant

Slightly soluble surfactant granules with varying bulk and excellent solubility comprising the neutralized form of an anionic surfactant acid and sodium carbonate and sodium bicarbonate can be prepared by neutralization of anionic surfactant acids with solid neutralizing agents, wherein said solid neutralizing agent, sodium carbonate, which partly reacts to form sodium bicarbonate least; the ratio of the weight fractions of sodium carbonate to sodium hydrogencarbonate in the method end products is 2: 1 or more, and the water content of the products, determined by drying loss at 120 DEG C, <15 wt .-%, preferably <10 wt .-%, particularly preferably <5 wt .-% and in particular <2.5 wt .-%, is.