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.:
Date of Patent:
Nov. 24, 2020
Filed:
Dec. 19, 2016
Takahashi Metal Industries Co., Ltd., Nagahama, JP;
Nippon Soda Co., Ltd., Tokyo, JP;
Toshiyasu Hirokawa, Nagahama, JP;
Tsuyoshi Noishiki, Nagahama, JP;
Nobuo Kimura, Tokyo, JP;
Masato Amaike, Ichihara, JP;
Yukiko Takahashi, Ichihara, JP;
TAKAHASHI METAL INDUSTRIES CO., LTD., Nagahama, JP;
NIPPON SODA CO., LTD., Tokyo, JP;
Abstract
Adsorbent particle includes iron oxyhydroxide as a main component, wherein 90% or more of volume of particle is constituted of a granular crystal having a crystal grain size of 20 nm or less or a columnar crystal having a width of 10 nm or less and length of 30 nm or less and particle has BET specific surface area of 250 m/g or more. Above adsorbent particle is produced by a method including a step of generating iron oxyhydroxide by adding base represented by YOH (wherein Y represents a monovalent atom or atomic group) to solution including at least one selected from trivalent iron compounds represented by FeX(wherein X represents a monovalent atom or atomic group other than OH) while adjusting pH to pH 3 to 6, wherein solution has total concentration of FeX, YOH and other electrolytes of 10% by mass or more at completion of the step.