Invention Grant
- Patent Title: Method for mechanochemical preparation of high temperature-resistant bismuth yellow pigment
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Application No.: US17269803Application Date: 2019-07-12
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Publication No.: US11999856B2Publication Date: 2024-06-04
- Inventor: Bin Mu , Aiqin Wang , Xiaowen Wang , Aiping Hui , Yuru Kang , Wenbo Wang , Li Zong , Yongfeng Zhu , Qin Wang
- Applicant: LANZHOU INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
- Applicant Address: CN Lanzhou
- Assignee: LANZHOU INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
- Current Assignee: LANZHOU INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
- Current Assignee Address: CN Gansu
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: CN 1811489453.X 2018.12.06
- International Application: PCT/CN2019/095877 2019.07.12
- International Announcement: WO2020/113961A 2020.06.11
- Date entered country: 2021-02-19
- Main IPC: C09C1/00
- IPC: C09C1/00 ; C09C3/00 ; C09C3/04

Abstract:
The present disclosure relates to a method for preparation of a high temperature-resistant bismuth yellow pigment. The method comprises: mixing an oxide which served as a matrix and dopan with a bismuth source, a vanadium source, or a molybdenum source, and then placing the mixture into a mill for grinding to obtain a precursor; further calcining and crushing the precursor to obtain the high temperature-resistant bismuth yellow pigment powder. The bismuth yellow pigment has a bright color, a b* value greater than 90, a stable performance, and a high heat-resistance above 800° C. The method is environmentally friendly without waste, and reaction conditions are simple. Doping of BiVO4 crystal lattices by incorporation of oxides can be achieved, so that the particle size and distribution of the bismuth yellow pigment can be effectively controlled while the color performance of the bismuth yellow pigment is greatly improved.
Public/Granted literature
- US20210317316A1 METHOD FOR MECHANOCHEMICAL PREPARATION OF HIGH TEMPERATURE-RESISTANT BISMUTH YELLOW PIGMENT Public/Granted day:2021-10-14
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