Title:
COLORANT AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/000581
Kind Code:
A1
Abstract:
Disclosed are a rare earth sulfide colorant and a preparation method therefor. The chemical formula of the rare earth sulfide colorant of the present invention is RE2-2xS3-3x·2y[REPO4], wherein RE is one or more of La, Ce, Pr, Nd, and Sm, and the ratio of y to x is 0.001-0.65. Also disclosed is application of a phosphorous compound to the improvement of color brightness of the rare earth sulfide colorant.
Inventors:
LI CHENGYU (CN)
ZHANG HONGJIE (CN)
TIAN LEI (CN)
CHI JIANYI (CN)
PANG RAN (CN)
JIANG WEI (CN)
WANG MING (CN)
WANG BIN (CN)
DONG KAIQIANG (CN)
ZHANG HONGJIE (CN)
TIAN LEI (CN)
CHI JIANYI (CN)
PANG RAN (CN)
JIANG WEI (CN)
WANG MING (CN)
WANG BIN (CN)
DONG KAIQIANG (CN)
Application Number:
PCT/CN2017/096520
Publication Date:
January 03, 2019
Filing Date:
August 09, 2017
Export Citation:
Assignee:
BAOTOU RARE EARTH RES AND DEVELOPMENT CENTER CHINESE ACADEMY OF SCIENCES (CN)
International Classes:
C09C1/00; C09C3/06
Domestic Patent References:
| WO2009083867A1 | 2009-07-09 |
Foreign References:
| CN1426376A | 2003-06-25 | |||
| CN101024770A | 2007-08-29 | |||
| CN1201441A | 1998-12-09 | |||
| CN1271332A | 2000-10-25 | |||
| CN1426376A | 2003-06-25 | |||
| CN1087273C | 2002-07-10 | |||
| CN200710036985A | 2007-01-30 |
Other References:
ROMERO, S. ET AL.: "Effect of some dopant elements on the low temperature formation of y-Ce2S3", JOURNAL OF ALLOYS AND COMPOUNDS, vol. 302, no. 1-2, 28 April 2000 (2000-04-28), pages 118 - 127, XP004194377
See also references of EP 3447093A4
See also references of EP 3447093A4
Attorney, Agent or Firm:
GFZ & PARTNERS (CN)
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