Process for the production of spray-dried laundry detergent powders

摘要

Process for the production of spray-dried washing agent powder, the process comprising the following steps: a) production of an aqueous suspension of washing agent in a mixer, b) transfer of the aqueous suspension of washing agent from the mixer to a tubular conduit system, which leads to a high-pressure pump and from the pump to a spray nozzle, c) introduction of gases into the aqueous suspension of washing agent which is in the tubular conduit system at a point postponed to the high pressure pump in front of a or directly to a pulsation damper (air chamber), d) spraying the aqueous suspension of washing agent containing gas through the spray nozzle to a spray tower and ) spray drying the gas-containing washing agent suspension to obtain a spray-dried washing agent powder.