Method for removing anti-caking agent out of potassium chloride

Abstract

The invention discloses a method for removing an anti-caking agent out of potassium chloride. The method comprises the following steps: firstly, dissolving a potassium chloride raw material containing the anti-caking agent into water to form a saturated solution, wherein the dissolving temperature is 20-110 DEG C; then, adding a filter aid into the saturated solution and then carrying out filtration, wherein the addition of the filter aid is 0.1-0.5% of the mass of the saturated solution; crystallizing filtrate, separating and drying crystals to obtain the potassium chloride finished product with the anti-caking agent content being less than 2ppm. The method is reasonable and simple, convenient to operate, low in production cost, high in production capacity, and capable of effectively removing the anti-caking agent out of the potassium chloride raw material in a production process of a food additive potassium chloride.

Description

technical field [0001] The invention relates to the production of food additive potassium chloride, a method for removing the anticaking agent in the raw material potassium chloride in the process of producing the food additive potassium chloride with industrial or agricultural potassium chloride as raw material. Background technique [0002] Potassium chloride is white powder or colorless crystal, odorless, salty, non-toxic, soluble in water. Potassium chloride can be used as a salty agent and a nutritional supplement. In order to suppress people’s excessive intake of salt, it can also be used as a flavoring agent for various foods such as agricultural products, aquatic products, livestock products, fermented cans, and convenience foods. [0003] With the development of medicine, medical authorities have realized that too much sodium can easily cause some patients to retain body fluids, resulting in heart congestion and high blood pressure. In 1979, walrei et al. proved th...

AI Technical Summary

Problems solved by technology

This kind of anticaking agent is poisonous and harmful, which endangers food safety. The finished product of food additive potassium chloride must not contain anticaking agent. This kind of anticaking agent needs to be removed during the production process to ensure product quality.