Study on Mineral Phase Composition and Viscosity of Hot Metal Pretreatment Desulfurization Slag Based on FactSage

2020 ◽  
pp. 405-411
Author(s):  
Tengfei Ma ◽  
Wufeng Jiang ◽  
Suju Hao ◽  
Yuzhu Zhang
Keyword(s):  
Phase Composition ◽  
Hot Metal ◽  
Mineral Phase ◽  
Hot Metal Pretreatment

scholarly journals Establishment of Steel Making Process with High Productivity and High Efficiency by Use of Hot Metal Pretreatment

1990 ◽  
Vol 76 (11) ◽  
pp. 1801-1808 ◽  
Author(s):  
Shin-ya KITAMURA ◽  
Yoshimasa MIZUKAMI ◽  
Toshiyuki KANEKO ◽  
Toshiki YAMAMOTO ◽  
Ryouichi SAKOMURA ◽  
...  
Keyword(s):  
High Efficiency ◽  
Hot Metal ◽  
High Productivity ◽  
Steel Making ◽  
Hot Metal Pretreatment

A new method of red mud recycling in the process of hot metal pretreatment

2020 ◽  
Vol 117 (1) ◽  
pp. 115
Author(s):  
Bo Zhang ◽  
Chengjun Liu ◽  
Maofa Jiang
Keyword(s):  
Red Mud ◽  
Large Scale ◽  
Sulfide Capacity ◽  
Hot Metal ◽  
Metal Interaction ◽  
Hot Metal Pretreatment ◽  
Aluminium Dross ◽  
Interaction Experiment ◽  
Slag Valorization ◽  
In Virtue Of

To realize a large-scale consumption of red mud in the steelmaking industry, a new recycling method was investigated through the pre-reduction roasting experiment and the slag-metal interaction experiment simulating the hot metal pretreatment process in the steelmaking industry. In virtue of the sensible heating of the hot metal and the reducibility of [C] and [Si], the iron could be separated and recovered from the pre-reduced red mud pellets into the hot metal directly with a recovery rate exceeding 75%. With the composition adjustment of the residual oxides in the pre-reduced red mud (PRRD) using CaO and Al2O3 or aluminium dross (AD), a slag having a low melting point (below 1300 °C) and a high sulfide capacity (lgCS = −2.3) was formed, and more than 94% of [S] in the hot metal could be removed into this slag through the slag-metal interaction. The desulfurization efficiency of the flux (PRRD-CaO–Al2O3; PRRD-CaO–AD) is approximate to the traditional desulfurizing flux (CaO–CaF2). The advantages of this method are summarized as the low energy cost and the slag valorization.

scholarly journals Immobilization of Fluorine Dissolved from Hot Metal Pretreatment Slag

2002 ◽  
Vol 88 (6) ◽  
pp. 347-354 ◽  
Author(s):  
Ryo INOUE ◽  
Hideaki SUITO
Keyword(s):  
Hot Metal ◽  
Hot Metal Pretreatment

scholarly journals Mineral phase composition of the surface dirt sediment in an urban environment

2019 ◽  
Vol 317 ◽  
pp. 012009
Author(s):  
A Seleznev ◽  
I Yarmoshenko ◽  
D Kiseleva ◽  
A Ryanskaya ◽  
G Malinovsky ◽  
...  
Keyword(s):  
Phase Composition ◽  
Urban Environment ◽  
Mineral Phase

Experimental Study on Soluble Oxygen in Hot Metal Pretreatment

2005 ◽  
Vol 76 (10) ◽  
pp. 715-717
Author(s):  
Bao-guo Wu ◽  
Yuan-chi Dong ◽  
Shi-jun Wang
Keyword(s):  
Experimental Study ◽  
Hot Metal ◽  
Hot Metal Pretreatment ◽  
Soluble Oxygen

Study on Physicochemical Properties of the Carbonated Hydroxyapatite Bone Cement

2007 ◽  
Vol 280-283 ◽  
pp. 1545-1548
Author(s):  
Li Min Dong ◽  
Chen Wang ◽  
Jie Mo Tian ◽  
Jian Pan ◽  
Qing Feng Zan
Keyword(s):  
Compressive Strength ◽  
Phase Composition ◽  
Physicochemical Properties ◽  
Bone Cement ◽  
Pore Size ◽  
Setting Time ◽  
Mineral Phase ◽  
Carbonated Hydroxyapatite ◽  
Natural Bone ◽  
Ft Ir

Carbonated hydroxyapatite (CHA) bone cement is capable of self-setting and has the component similar to the mineral phase of natural bone. But it is compact in structure and short of cavity, which limits new bone growing into CHA bone cement. In this paper, the foaming method was adopted to prepare the porous CHA. The setting time, compressive strength, porosity and pore size of the CHA were examined. The phase composition of the CHA was tested with XRD and FT-IR. The microstructure of the CHA was observed with SEM. The results show that setting time of 7~19 minutes, compressive strength of 26~32MPa, pore size of 100~200µm, porosity of 50~60%.

Characterization and Valorization of Kanbara Reactor Desulfurization Waste Slag of Hot Metal Pretreatment

2015 ◽  
Vol 7 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Zhibo Tong ◽  
Guojun Ma ◽  
Xun Cai ◽  
Zhengliang Xue ◽  
Wei Wang ◽  
...  
Keyword(s):  
Hot Metal ◽  
Hot Metal Pretreatment

scholarly journals Performances of vermiculite and perlite based thermal insulation lightweight concretes

2020 ◽  
Vol 52 (2) ◽  
pp. 149-162
Author(s):  
Anja Terzic ◽  
Jovica Stojanovic ◽  
Ljubisa Andric ◽  
Ljiljana Milicic ◽  
Zagorka Radojevic
Keyword(s):  
Phase Composition ◽  
Thermal Insulation ◽  
Mix Design ◽  
Expanded Perlite ◽  
X Ray Diffraction ◽  
Mineral Phase ◽  
X Ray ◽  
Expanded Vermiculite ◽  
Concrete Mix ◽  
Aluminate Cement

This experimental study was conducted with an aim to investigate the effect of the elevated temperature on the mineral phase composition, microstructure and mechanical properties of the thermal insulation lightweight concretes. The first group of experimental concretes was based on the expanded vermiculite and expanded perlite used as lightweight aggregates (in 65 wt%) in combination with either ordinary Portland cement or refractory calcium aluminate cement. The mix-design of the second group of concretes comprised standard quartz aggregate, vermiculite or perlite as aggregate replacement (25 wt%) and binder (PC or CAC). A total of 10 concrete mix-designs were fabricated in form of 40?40?160 mm samples which were submitted to heat-treatment at 400?, 600?, 800? and 1000?C upon standard 28-days period of curing and hardening. The changes in crystallinity and mineral phase composition induced by temperature were monitored by X-ray diffraction technique. Microstructural visualizations of the non-fired and fired concrete samples were conducted by scanning electron microscopy accompanied with EDX analysis. The results indicated that despite the decrease in compressive strengths upon firing, investigated lightweight concretes can be categorized both as thermal insulators and structural materials.

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