HIGH-VANADIUM AND HIGH-CHROMIUM TYPE VANADIUM-TITANIUM MAGNETITE PELLET

WIPO Patent Application WO/2018/228156

A1

A high-vanadium and high-chromium type vanadium-titanium magnetite pellet, relating to the technical field of blast-furnace smelting in a high-vanadium and high-chromium type vanadium-titanium magnetite comprehensive utilization method. The high-vanadium and high-chromium type vanadium-titanium magnetite pellet comprises, in percentage by mass, chemical components: V2O5: 0.45-0.62%, TiO2: 2.29-3.20%, Cr2O3: 0.22-0.48%, TFe: 61.88-64.22%, CaO: 0.11-0.63%, SiO2: 3.18-4.77%, MgO: 0.32-0.89%, and Al2O3: 1.62-4.0%, with the balance being inevitable impurities, wherein in TFe, Fe2O3 accounts for 87.51-91.41% of the percentage by mass of the pellet, and FeO accounts for 0.3-0.8% of the percentage by mass of the pellet. In the raw material proportion for preparing the pellet, the proportion of bentonite is decreased by 1% or more, and therefore, the grade of the pellet can be improved; the quality of the fresh pellet can be practically and effectively improved, and the yield and the quality of the pellet can be ensured.

XUE XIANGXIN (CN)
ZHANG YONG (CN)
CHENG GONGJIN (CN)
ZHANG ZHIXIANG (CN)
JIANG TAO (CN)
ZHANG XIANFENG (CN)
YANG HE (CN)
YAO BENJIN (CN)
YANG SONGTAO (CN)
ZHOU SHENGCHENG (CN)

PCT/CN2018/088043

December 20, 2018

May 23, 2018

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UNIV NORTHEASTERN (CN)

C22B1/24; C21B5/00; C22B1/02

CN107267748A	2017-10-20
CN107287412A	2017-10-24
CN105907956A	2016-08-31
CN102517442A	2012-06-27
CN105734271A	2016-07-06
CN104630449A	2015-05-20
US3980465A	1976-09-14

SHENYANG DONGDA INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)

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