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:
Apr. 26, 2016
Filed:
Jun. 28, 2012
Katsumi Kamegawa, Tosu, JP;
Tsuyoshi Sakaki, Tosu, JP;
Kinya Sakanishi, Kure, JP;
Masaya Kodama, Tsukuba, JP;
Keiko Nishikubo, Tosu, JP;
Yoshio Adachi, Tosu, JP;
Katsumi Kamegawa, Tosu, JP;
Tsuyoshi Sakaki, Tosu, JP;
Kinya Sakanishi, Kure, JP;
Masaya Kodama, Tsukuba, JP;
Keiko Nishikubo, Tosu, JP;
Yoshio Adachi, Tosu, JP;
Abstract
A method for preparing a carbon microparticle from an organic raw material having lignin as a main constituent, wherein an aqueous solution with 5% total concentration of lignin and sodium hydroxide (the proportion in mass is 1:0.5) is spray-dried to prepare a complex microparticle. This complex microparticle is heat-processed under nitrogen atmosphere at 600° C. for one hour and cooled. Thereafter, this is washed with water and further dried to prepare a hollow carbon microparticle such as those shown in FIG.(). The prepared carbon microparticle is light-weight and has an equivalent specific surface area to commercially available activated charcoal.