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Title:
GREEN PIGMENT BASED ON CA3TEO6 STRUCTURE, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/142124
Kind Code:
A1
Abstract:
Disclosed are a green pigment based on Ca3TeO6 structure, a preparation method therefor and use thereof. The molecular formula of the green pigment is Ca3-2xMnxLixTeO6, wherein 0.1≤x≤0.4. The preparation method for the green pigment comprises the following steps: weighing raw materials of a calcium-containing compound, a tellurium-containing compound, a manganese-containing compound, and Li2CO3 according to an element molar ratio, mixing and grinding same uniformly, calcining same at 900-1200 °C, and cooling same so as to obtain the green pigment. The preparation method of the present invention is simple and environmentally friendly, the raw materials are inexpensive and non-toxic, the prepared green pigment is acid-resistant and alkali-resistant, the pigment can maintain the color unchanged below 1100 °C, and the pigment has a reflectance value similar to that of green plants and can be used for coating of camouflage materials.

Inventors:
LI MANRONG (CN)
ZHOU XIAO (CN)
Application Number:
PCT/CN2021/097637
Publication Date:
July 07, 2022
Filing Date:
June 01, 2021
Export Citation:
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Assignee:
UNIV SUN YAT SEN (CN)
International Classes:
C01B19/00; C09C1/02; C09C3/04; C09C3/06; C09D5/30
Foreign References:
CN112811400A2021-05-18
CN111978775A2020-11-24
Other References:
LI KAI, VAN DEUN RIK: "Realizing a novel dazzling far-red-emitting phosphor NaLaCaTeO 6 :Mn 4+ with high quantum yield and luminescence thermal stability via the ionic couple substitution of Na + + La 3+ for 2Ca 2+ in Ca 3 TeO 6 :Mn 4+ for indoor plant cultivation LEDs", CHEMICAL COMMUNICATIONS, ROYAL SOCIETY OF CHEMISTRY, UK, vol. 55, no. 72, 5 September 2019 (2019-09-05), UK , pages 10697 - 10700, XP055947700, ISSN: 1359-7345, DOI: 10.1039/C9CC05465K
POLITOVA, E.D. ; VENEVTSEV, Y.N.: "Ferroelectricity and antiferroelectricity in tellurium containing compounds with perovskite structure", MATERIALS RESEARCH BULLETIN, ELSEVIER, KIDLINGTON., GB, vol. 10, no. 4, 1 April 1975 (1975-04-01), GB , pages 319 - 325, XP024078576, ISSN: 0025-5408, DOI: 10.1016/0025-5408(75)90120-8
NALBANDYAN VLADIMIR B., SHUKAEV IGOR L., RAGANYAN GRIGORY V., SVYAZHIN ARTEM, VASILIEV ALEXANDER N., ZVEREVA ELENA A.: "Preparation, Crystal Chemistry, and Hidden Magnetic Order in the Family of Trigonal Layered Tellurates A 2 Mn(4+)TeO 6 (A = Li, Na, Ag, or Tl)", INORGANIC CHEMISTRY, AMERICAN CHEMICAL SOCIETY, EASTON , US, vol. 58, no. 9, 6 May 2019 (2019-05-06), Easton , US , pages 5524 - 5532, XP055947701, ISSN: 0020-1669, DOI: 10.1021/acs.inorgchem.8b03445
ZARAQ A, ORAYECH B, IGARTUA J. M, EL BOUARI A: "Synthesis, Crystal Structure, and Vibrational Studies of the Monoclinically Distorted Double Perovskite, Sr2Mn1−xNixTeO6 with (x=0.25, 0.5, and 0.75)", POWDER DIFFRACTION, JCPDS-INTERNATIONAL CENTRE FOR DIFFRACTION DATA, WSARTHMORE, US, vol. 34, no. S1, 30 September 2019 (2019-09-30), US , pages S48 - S58, XP009537953, ISSN: 0885-7156, DOI: 10.1017/S0885715619000411
RETUERTO MARIA, SKIADOPOULOU STELLA, BORODAVKA FEDIR, KADLEC CHRISTELLE, KADLEC FILIP, PROKLEŠKA JAN, DENG ZHENG, ALONSO JOSE A., : "Structural and Spectroscopic Properties of the Polar Antiferromagnet Ni2MnTeO6", PHYSICAL REVIEW B, vol. 97, no. 14, 23 April 2018 (2018-04-23), pages 144418, XP055947716, ISSN: 2469-9950, DOI: 10.1103/PhysRevB.97.144418
S. NATANSOHN: "Fluorescence Properties of Alkaline Earth Tellurates", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 120, no. 5, 1 May 1973 (1973-05-01), pages 660 - 664, XP001278667
Attorney, Agent or Firm:
YOGO PATENT AND TRADEMARK AGENCY LIMITED COMPANY (CN)
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