| 摘要 |
PROCESS FOR MANUFACTURING PARTICULATE DETERGENT COMPOSITION DIRECTLY FROM IN SITU PRODUCED ANIONIC DETERGENT SALT A particulate detergent composition, such as one comprising sodium linear higher alkylbenzene sulfonate (LAS) and bentonite, is made directly from anionic synthetic organic detergent acid by neutralizing such acid with a neutralizing agent, such as aqueous sodium hydroxide solution, in a reaction vessel and directly discharging the neutralized detergent salt from the reaction vessel into an absorption zone wherein globules of the anionic detergent salt, in aqueous solution or dispersion, and particulate solid carrier particles are rapidly circulated and repeatedly brought into contact with one another to produce detergent salt - carrier composition particles or agglomerates. In preferred aspects of the invention the bentonite will be admitted exteriorly to the neutralized detergent salt solution in an absorption zone so as to prevent contact with the walls of such zone of the aqueous solution or dispersion of detergent salt, and the detergent salt - carrier composition will be directly delivered to an agglomerator, granulator or tumbling drum, and the composition will be converted to particles of desired sizes. Also within the invention are apparatuses that are useful in carrying out the described processes. Additionally, instead of employing aqueous or liquid neutralizing agents, powdered solids may be used, in which case the neutralization and absorption functions may take place in the same zone and be effected by the same materials, such as alkaline builders, e.g., sodium carbonate.
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