Ingredion has patented a system for treating process water from starch processing by recycling a concentrated sodium sulfate solution. The system includes a membrane bioreactor, cationic ion exchange unit, and high pressure filtration unit with a molecular weight cut off of less than 200 Da. GlobalData’s report on Ingredion gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Ingredion, Nanoemulsion cosmetics was a key innovation area identified from patents. Ingredion's grant share as of January 2024 was 59%. Grant share is based on the ratio of number of grants to total number of patents.
System and method for recycling sodium sulfate in starch process
A recently granted patent (Publication Number: US11884568B2) discloses a system and method for treating process water from a starch process containing sodium sulfate. The system includes a membrane bioreactor unit to reduce the chemical oxygen content of the process water, a cationic ion exchange unit to receive the permeate, and a high-pressure filtration unit to concentrate sodium sulfate in the permeate to obtain a solution with high sodium sulfate content for recycling back into the starch process. The high-pressure filtration unit has a molecular weight cut off of less than 200 Da, ensuring efficient concentration of sodium sulfate.
Furthermore, the method outlined in the patent involves treating the process water in a membrane bioreactor unit, followed by treatment in a cationic ion exchange unit, and concentration of sodium sulfate in a high-pressure filtration unit to obtain a concentrated solution for recycling. The method also includes steps to reduce the chemical oxygen demand of the process water and discharge a permeate with low sodium sulfate content. The patent highlights the importance of recycling sodium sulfate into the starch processing process multiple times, with specific parameters such as operating temperature and pH range provided for optimal performance. Additionally, variations in the molecular weight cut off of the high-pressure filter are mentioned, emphasizing the flexibility of the system and method.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
