The Preparation of Porous Activated Slag Granules/TiO2 ...

Zhu K Z, Qin Y M, Hou S, et al. Experimental Study of Cement Grinding Aids Using in Slag Grinding[J]. Cement Engineering, 2017 (3): 4–6, 22 [9] Liu H, Zhou Z H, Wang X H, et al. Preparation and Photocatalytic Activities of Photocatalysts From High-iron Slag[J]. Industrial Safety and Environmental Protection, 2012, 38(1): 84–87

Primary research on the bronze technology of Lower ...

The archaeometallurgical studies in China can be traced back to the middle of the last century, and the exchanges between western academia and Chinese scholars have been increasing since 2000 [].The Eurasia steppe is considered as an important region of the introduction of bronze technology into ancient China, and our research is mainly focused on …

Current Development of Slag Valorisation in China ...

Equipment for slag valorisation such as BF slag vertical mills, horizontal rolling mills and rod mills for steel slag crashing and grinding before final magnetic dressing, can be made domestically and the technical quality of these slag valorisation facilities can satisfy the requirements of slag recycling in China.

Component modification of steel slag in air quenching ...

The grinding efficiency of steel slag was obviously increased and the particle characteristics were improved after using grinding aids (GA), especially …

1. College of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2. CCCC-SHEC Third Highway Engineering Co., Ltd., Xi'an 710016, China; Received: Revised: Online: Published:

One High Efficiency Production Line of Clinker and Slag ...

One High Efficiency Production Line of Clinker and Slag Grinding Separately by Roller Mill in Cement Industry 【Author】 Ningchang LIU Zhaofeng LI Powder Institute of Engineering,School of Material Science & Engineering,Xi'an University of Architecture & Technology,Xi'an 710055,P.R.China

Constraints and opportunities for the recycling of growing ...

Third, ferronickel slag has poor wearability compared with cement clinker and quartz sand. High energy consumption and grinding cost during the grinding process seriously limit the recycling rate of ferronickel slag. Fourth, China does not place remarkable importance on the recycling of ferronickel slag.

Research status of super sulfate cement - ScienceDirect

Likewise, the grinding of slag will result in the emission of CO 2. It was proposed that the emission factor of grinding slag is 0.035 tCO 2 /t (Li et al., 2017). According to calculation of 80% of slag in SSC, the indirect CO 2 emitted by slag powder (P s) is 28 kgCO 2 /t slag (see Equation ).

Applied Sciences | Free Full-Text | Comparison of Grinding ...

The converter steel slag cannot be widely used in building materials for its poor grindability. In this paper, the grinding characteristics of untreated and pretreated (i.e., magnetic separation) steel slag were compared. Additionally, the grinding …

Name: Naiyang Ma

East China Institute of Metallurgy (now Anhui University of Technology), Anhui, China . 3 ... Abd El-Rahman, Naiyang Ma, and Raj K. Rajamani, "Ultra-fine Grinding of Some Oxides and Non Oxides Materials Using the Planetary Mill," Ore Dressing, No. 5, 2001, pp 11 – 23. ... Nangang BF Slag )" (Journal of East China ...

Applied Sciences | Free Full-Text | Comparison of Grinding ...

The converter steel slag cannot be widely used in building materials for its poor grindability. In this paper, the grinding characteristics of untreated and pretreated (i.e., magnetic separation) steel slag were compared. Additionally, the grinding property of pretreated steel slag was also studied after adding grinding aids. The results show that the residues (i.e., oversize substance) that ...

CN101812595A - Method for producing synthetic rutile by ...

Get TiO 2 The electro-titanium slag 100g of content 81%, fine grinding less than 0.074mm, mixes by mass ratio with yellow soda ash more than 96% at 3: 1, and at 900 ℃ of following roasting time 2h of maturing temperature; Roasting sample water is 3: 1 in liquid-solid ratio, and wash temperature is 95 ℃ of following washing time 1h, and the ...

General Office of Ministry of Environmental Protection of ...

– 9 – Translation provided by TransPerfect 24 August 2017 Preface This standard is formulated in order to enforce the Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Wastes, strictly restrict import of solid wastes, control environmental pollution due to imported smelt slag as raw material and standardize

Component modification of steel slag in air quenching ...

As a result of the reaction between fly ash and steel slag at high temperature, some new mineral phases and vitreous bodies with fine grindability promote the slag grinding easily. This work is helpful to making a comprehensive utilization of steel slag …

Slag recycling - recovery

Since around 2000, the most important Chinese steel producers have been investing in granulation and grinding plants for blast furnace slag. It is currently estimated that 95 % of the blast furnace slag is granulated and used entirely in the cement and concrete industry. Almost 70 % of the steelworks slag goes to dumps and landfills [5] (Fig. 13).

Lijie GUO | Managing Director | Doctor of Engineering ...

Deputy Director General of Dept. of Mining Engineering at Beijing General Research Institute of Mining and Metallurgy. Professor,CIM Member, Member …

Improving the Volume Stability of Steel Slag for ...

Steel slag is a solid waste produced in the process of steelmaking, and applying it to the field of building materials is the main utilization approach at present. However, steel slag contains free calcium oxide and magnesium oxide, existing serious stability problem. The purpose of this work is to discuss the approaches to solve volume stability problem of steel slag through …

PRELIMINARY STUDY ON THE RELATIONSHIP BETWEEN …

Zhu Pei-nan East China Institute of Chemical Technology Abstract： Microstructure of quenched blast furnace slag is studied by TEM and X-ray diffractionanalysis in the paper.It is found that liquid immiscible phenomenon between liquids existsin different samples.CaO enriched glass phase is estimated as invert glass from its structure.

NAIYANG MA - Research - Faculty Profile - The University ...

Naiyang Ma (2018). In-process Separation and Its Application in Cleaner Production of BOF Offgas Solid Wastes. Proceedings of 2018 China Symposium on Sustainable Steelmaking Technology. Published, 08/2018. Naiyang Ma (2018). Upgrading and Recycling 'Metallic' Steelmaking Slag Fines. Iron & Steel Technology. Vol. 15, 72-76. Published, 05/2018.

Research Article Gang Gao, Xiaofang Shi*, Zhenghai Zhu ...

2 in the ladle slag. When ΔG Al and ΔG Si are less than zero, TiO 2 in the ladle slag can be reduced by Al or Si. Based on equations (1)–(3), the activities of different components in the ladle slag should be calculated first to determine whether TiO 2 can be reduced. 2.2 Calculation model of activity for slag component

Defects / Imperfections in Welds - Slag Inclusions - TWI

Fig. 1. Radiograph of a butt weld showing two slag lines in the weld root. Slag is normally seen as elongated lines either continuous or discontinuous along the length of the weld. This is readily identified in a radiograph, Fig 1. Slag inclusions are usually associated with the flux processes, ie MMA, FCA and submerged arc, but they can also ...

Frontiers | Effect of Iron Tailings and Slag Powders on ...

Tailings are one of the largest solid wastes in stock at present. In order to improve the comprehensive utilization rate of tailings, especially to solve the problems of fine-grained tailings treatment, the concrete composite admixture was prepared by using iron tailings powder and slag powder. In order to study the influence of iron tailings powder on the workability and …

High-Pressure Roller Press - Institute for Industrial ...

This technology is considered to be suitable for both for raw materials grinding and for finish grinding of cement, as well as ultrafine grinding of blast furnace slag. In China,the penetration rate of this technology was expected to reach 80% during the eleventh five-year development period – requiring an investment of 1 billion RMB and ...

Innovative solutions for sheet metal applications ...

Find the right timesaving solution for deburring, precision grinding and edge rounding with the highest quality and most beautiful finishing. Our metal grinding solutions are built to fit your needs, the options are limitless. Find my Timesavers …

Defects / Imperfections in Welds - Slag Inclusions - TWI

Slag is normally seen as elongated lines either continuous or discontinuous along the length of the weld. This is readily identified in a radiograph, Fig 1. Slag inclusions are usually associated with the flux processes, ie MMA, FCA and submerged arc, but …

Frontiers | Synergistic Excitation Mechanism of CaO-SiO2 ...

General Research Institute For Nonferrous Metals (China), China. ... AFter grinding, the density of steel slag and granulated blast furnace were 3.27 g/cm 3 and 2.86 g/cm 3 and the specific surface areas were 440 m 2 /kg and 480 m 2 /kg, respectively. Experiment Procedure.

Influences of Ultrafine Slag Slurry Prepared by Wet Ball ...

The ultrafine slag slurry (UFSS) was obtained by the process of grinding the original slag in a wet ball mill, which was mixed in concrete directly. The durations of grinding were 20 min, 40 min, and 60 min which were used to replace Portland cement with different percentages, namely, 20, 35, and 50, and were designed to compare cement with ...

CN203389707U - Vertical type roller mill for grinding ...

China Prior art keywords grinding grinding machine roll grinder steel slag vertical roll Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number CN201320407908.5U

Component modification of steel slag in air quenching ...

The basic idea of the experiment is that adding modification agent to the molten slag before quenching can change the slag phase composition and improve its grindability. 2 Experimental The capacity of the slag tundish used in air quenching slag production was about 3.5 t in Ma Steel Company in China where the hot tests were done.

Utilization of reduction slag and waste sludge for ...

The feasibility of recycling the reduction slag, limestone sludge, iron-oxide sludge, and stone sludge produced in the manufacture of cement was investigated through compressive strength testing, differential thermal and thermogravimetric analysis, X-ray diffraction, and 29 Si nuclear magnetic resonance analysis. The major crystalline phases of ecocement clinkers, …

GB/T 18736-2017_English: PDF (GB/T18736-2017)

This standard applies to high-strength high-performance concrete grinding slag, fly ash, grinding natural zeolite, silica fume and metakaolin and its composite mineral admixture. GB/T 18736-2017. Mineral admixtures for high strength and …

Mineralogical and morphological factors affecting the ...

Affiliations 1 CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shanxi 710075, China. . Electronic address: …

Finish Grinding | Industrial Efficiency Technology & Measures

Finish Grinding. In the finish grinding, clinker is mixed with gypsum and other minerals, such as blast furnace slag, according to the specifications of desired end products and are ground, or milled, to achieve required particle fineness. Finish grinding accounts for nearly 40% of the electricity use in cement production.

Study on Mechanical Grinding Characteristics of Refining Slag

In order to improve the comprehensive utilization efficiency of refining slag and reduce the stacking of refining slag. In this paper, the refining slag of Handan Iron and Steel Group was used as raw material, and the surface area meter, laser particle size meter and X-ray diffraction are used to characterize the refining slag after grinding.The physical properties of …

China Institute of Processing Engineering,CAS lab bead ...

It is the ideal model for research institute, university lab and Scientific researchers. RTSM-BJ(D) can be applied for the production of pesticide SC, pharmaceutical material, textile printing inkjet ink, digital printing ink, glass inkjet ink, ceramic ink, MLCC, phraphene, nano coating, flourscent brightener, electric paste, positive and ...

Best Cement Handbook - LBL China Energy Group

Institute (ERI) and the China Cement Association. Two of these plants were 2000 tonnes per day (tpd) and two were 4000 tpd. ... slag cement (with 65% slag) 80 kWh/t (these are typical grinding numbers only used to determine the additional grinding energy required by additives, not best practice; for best

Gebr. Pfeiffer SE wins order for cement ... - Global Slag

Saudi Arabia: The Chinese General Contractor Chengdu Design & Research Institute of Bldg Materials Industry Co Ltd in Chengdu has placed an order with Gebr. Pfeiffer SE for the supply of an MPS 3070 BC cement mill for Readymix in Saudi Arabia. The 1100kW drive power mill will grind 30t/hr of granulated blast-furnace slag and 46t/hr of Ordinary Portland …

Lijie GUO | Managing Director | Doctor of Engineering ...

The copper nickel smelting slag is mainly the pyrometallurgical smelting slag discharged from the copper nickel ore in the smelting process.Its main elements are iron and silicon,with contents ...

Improved Smelting and Refining Processes for Production of ...

Xikuangshan Bureau of Mines (China).; Institute of Scientific and Technical Information of China, Beijing. Supplemental Notes: Sponsored by Institute of Scientific and Technical Information of China, Beijing. Document Type: Technical Report: Title Note: Technical rept., NTIS Issue Number: 198903

Change in Material Properties at Mechanoactivation|crimson ...

Activation by grinding may be the basis of fundamentally new technological processes, when an auxiliary operation becomes the main one. In the production of cement, crushed granular blast furnace slag can partially replace cement, provided the required specific surface area of the obtained product, that reduces the consumption of energy resources for the technological …