Cleaning agent for food-industry facilities, its use and method of cleaning such facilities using the agent
AssigneeHenkel Kommandigesellschaft auf Aktien
InventorsAnja Patten, Ralf Krack, Dietmar Rossner
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Abstract
An aqueous alkaline composition for cleaning equipment used in the food industry wherein the composition contains potassium hydroxide or a mixture of potassium hydroxide and sodium hydroxide and wherein the potassium hydroxide is present in an amount of at least 20% by weight, based on the weight of hydroxide present in the composition. A process for regenerating the cleaning solution is also disclosed.
Claims13
The process of cleaning equipment used in the food industry, comprising contacting said equipment with an aqueous alkaline composition containing potassium hydroxide or a mixture of potassium hydroxide and sodium hydroxide wherein said potassium hydroxide is present in an amount of at least 20% by weight, based on the weight of hydroxide present in said composition, regenerating said aqueous alkaline composition by membrane filtration with a nanofiltration membrane having a D value of 100 to 2,000 daltons to form a permeate, and recycling said permeate into the aqueous alkaline composition for contact with the food industry equipment.
Dependencies are inferred from the claim text.