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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11584647 B1

PDFFull Text
Date of Patent:
Feb. 21, 2023

Filed:

Jul. 21, 2020

Preparation process of food-grade potassium dihydrogen phosphate

Applicant:

Wengfu Dazhou Chemical Co., Ltd., Sichuan, CN;

Inventors:

Jia Shi, Sichuan, CN;

Yong Fu, Sichuan, CN;

Jun Zhang, Sichuan, CN;

Hui Liu, Sichuan, CN;

Qiang Zhao, Sichuan, CN;

Yiliang Mo, Sichuan, CN;

Assignee:

WENGFU DAZHOU CHEMICAL CO., LTD., Sichuan, CN;

Attorneys:

Yue (Robert) Xu

Apex Attorneys at Law, LLP

Primary Examiner:

Anthony J Zimmer

Assistant Examiner:

Logan Edward Laclair

Int. Cl.
CPC ...
C01B 25/30 (2006.01); A23L 33/16 (2016.01); B01D 1/00 (2006.01); B01D 21/26 (2006.01); B01F 27/191 (2022.01); B01F 27/1125 (2022.01); B01F 35/32 (2022.01); B01F 35/21 (2022.01); B01F 35/221 (2022.01); B01F 35/33 (2022.01);
U.S. Cl.
CPC ...
C01B 25/301 (2013.01); A23L 33/16 (2016.08); B01D 1/0041 (2013.01); B01D 1/0088 (2013.01); B01D 21/262 (2013.01); B01F 27/1125 (2022.01); B01F 27/191 (2022.01); B01F 35/2115 (2022.01); B01F 35/221422 (2022.01); B01F 35/323 (2022.01); A23V 2002/00 (2013.01); B01F 35/331 (2022.01); C01P 2006/80 (2013.01);
Abstract

The present invention discloses a preparation process of food-grade potassium dihydrogen phosphate, wherein phosphoric acid prepared from wet-process phosphoric acid is used for the preparation of high-purity potassium dihydrogen phosphate. The preparation process of food-grade potassium dihydrogen phosphate provided in the present invention effectively reduces the preparation cost of the high-purity potassium dihydrogen phosphate and has the advantage of high process controllability, and by such a process, high-purity potassium dihydrogen phosphate crystals that meet the food-grade requirements can be produced, which crystals have uniform particle size distribution and comprises few fine powder, having a very high market value.

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Shi, Jia. (2023). Preparation process of food-grade potassium dihydrogen phosphate (U.S. Patent No. 11584647). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11584647

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