A method for preparing highly soluble boron citrate

By directly reacting to prepare boron citrate, and utilizing microwave heating and pH adjustment, the cumbersome preparation process and product quality issues of existing boron citrate preparation methods have been resolved, enabling the preparation of boron citrate powder with high solubility and low heavy metal content.

CN122079762APending Publication Date: 2026-05-26ZHENGZHOU RUIPU BIOLOGICAL ENG CO LTD
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Patent Information

Application Number
CN202511994041.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-26
Publication Date
2026-05-26

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Abstract

This application discloses a method for preparing highly soluble boron citrate, comprising the following steps: S1. Preparing a borate solution and a citrate source solution separately; the borate solution also contains hydrochloric acid; S2. Under microwave heating reaction conditions, slowly adding one solution to the other solution, adjusting the pH of the solution to 5-6 after the first reaction time, and then continuing the reaction for a second time; S3. Heating and concentrating; S4. Spray drying to obtain the boron citrate product. The method provided in this application utilizes the direct reaction of soluble citrate source and soluble borate, which is a simple process. A stable boron citrate solution is prepared by adding hydrochloric acid and adjusting the pH of the solution. After heating, concentration, and spray drying, a highly soluble boron citrate powder product with fine particle size and low heavy metal content is obtained.
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