About Us

Henan LIMING Heavy Industry Science and Technology Co. LTD which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together. The Headquarter is located in HI-TECH Industry Development Zone of Zhengzhou and covers 80000 m ². Another workshop in Shangjie Industry Park covers 67000 m ². Over the more than 30 years, our company adheres to modern scientific management system, precision manufacturing, pioneering and innovation. Now LIMING has become the leader in domestic and oversea machinery manufacturing industry.

120

million

cubic meters

Industrial chain production base

70

national patents

689sets

national patents

170

Equipment service country

Company Culture

core values of the company

Create Value

Share Value

Observe Order

Respect Value

Service philosophy

Religious, fine, tight, and harmonious

LIMING spirit

Standardization, value, serialization, and differentiation will always exceed our contract

Brand Concept

Create and promote civilization, refine and interpret brilliantly

Business philosophy

Religious, meticulous, rigorous, and harmonious work

Our Global Footprint

Case Scene

Direct reduction and beneficiation of a refractory ...

Abstract Siderite is refractory to beneficiate and is directly used as burden for ironmaking because of its high loss of ignition (LOI) and decompositions of carbonate. In this paper, mineralogy of a siderite lump was studied, a process of coal-based direct reduction-magnetic separation of the siderite lump sample was proposed and process parameters have been optimised.

Direct reduction and beneficiation of a refractory ...

(2014). Direct reduction and beneficiation of a refractory siderite lump. Mineral Processing and Extractive Metallurgy: Vol. 123, No. 4, pp. 246-250.

Beneficiation of nickeliferous laterite by reduction ...

01-05-2012  Ni beneficiation of laterite ore by using direct reduction process is proposed. Sodium sulfate is capable of intensifying the reduction roasting of laterite. Average particle size of ferronickel grows up to 50 μm when reduced with Na 2 SO 4. Selective enrichment of Ni can be realized by suppressing the metallization of Fe. New-born troilite (FeS) facilitates the aggregation of ferronickel

Mechanism of phosphorus removal in beneficiation of high ...

applied the direct reduction roasting followed by low intensity magnetic separation in the beneficiation of oolitic hematite. LI [11] obtained the product of directly reduced iron (DRI) with high phosphorus content of 0.3%. SHEN et al [9], SUN et al [10] and LI et al [12] did

Driving investments in ore beneficiation and scrap ...

20-05-2021  Electric steel production using scrap, direct reduced iron, DRI and other metallic raw materials was 517 Mt in 2019 representing 27.7% of the global steel production. The same year the production of DRI, used mainly in the direct reduction-electric arc furnace route, DR-EAF, was 107.6 Mt (World Steel Association 2020).

Beneficiation - Wikipedia

Iron beneficiation has been evident since as early as 800 BC in China with the use of bloomery. A bloomery is the original form of smelting and allowed people to make fires hot enough to melt oxides into a liquid that separates from the iron. Although the bloomery was promptly phased out by the invention of the blast furnace, it was still heavily relied on in Africa and Europe until the early part of the second millennium. The blast furnace was the next step in smelting iron which produced pig iron. The first blast f

Sub-Sector Profile: Mineral Beneficiation Industrial Minerals

the development of two iron ore mines, which will produce Direct Reduced Iron (DRI) using coal-based rotary kilns. The construction of the first DRI plant started in early 2012. When the feasibility of DRI production in Zambia becomes clearer, investment opportunities in the iron and steel sector

Driving investments in ore beneficiation and scrap ...

reduction-electric arc furnace route, DR-EAF, was 107.6 Mt (World Steel Association 2020). The gas-based fraction of DRI production, i.eomMidrexor HYL/Energironprocess-es, is around 80% (Midrex technologies Inc 2018) and can therefore be estimated to 86 Mt. The production of DRI can be compared to the production of BF pig iron, which was

Beneficiation Plants and Pelletizing Plants for Utilizing ...

as-is. The same applies to direct reduction furnaces. Thus, there is a strong desire to improve the iron grade at the stage of raw material preparation. One of the most common approaches is a method of upgrading ore by a beneficiation process using a physical separation technique, and a number of existing mines have introduced such beneficiation

Minerals Free Full-Text Carbothermic Reduction of ...

In the present paper, beneficiation of Fe and Mn elements from a ferruginous manganese ore via carbothermic reduction followed by magnetic separation process was investigated in detail. The effects of the experimental parameters were systematically discussed. Iron-rich products with an Fe grade of 62.3% and 88.2% of Fe recovery, and manganese-rich product with a Mn grade of 63.7% of and

Direct reduction and beneficiation of a refractory ...

Abstract Siderite is refractory to beneficiate and is directly used as burden for ironmaking because of its high loss of ignition (LOI) and decompositions of carbonate. In this paper, mineralogy of a siderite lump was studied, a process of coal-based direct reduction-magnetic separation of the siderite lump sample was proposed and process parameters have been optimised.

Direct reduction and beneficiation of a refractory ...

(2014). Direct reduction and beneficiation of a refractory siderite lump. Mineral Processing and Extractive Metallurgy: Vol. 123, No. 4, pp. 246-250.

Iron carbonate ore beneficiation by direct reduction with ...

22-09-2020  Loder, A., Lux, S., Siebenhofer, M. (2020). Iron carbonate ore beneficiation by direct reduction with hydrogen.Poster session presented at 16. Minisymposium ...

HYFOR pilot plant under operation – the next step for ...

24-06-2021  Use of 100% Hydrogen as reduction agent reduces the CO2 footprint close to zero. The HYFOR pilot plant employs the world´s first direct reduction process for iron ore fines concentrates from ore beneficiation, not requiring any agglomeration like sintering or

Highly Efficient Beneficiation of Low-Grade Iron Ore via ...

14-02-2020  Direct reduction of low-grade iron ore pelleted with coal was investigated using a pilot-scale rotary kiln. The evolution of the iron minerals, the strength of the pellets, and the emission characteristics were measured. The results showed that the rotary kiln could be divided into three major functional zones: reduction of hematite to wüstite occurred at 1023–1163 K; wüstite transformed ...

Beneficiation Plants and Pelletizing Plants for Utilizing ...

from greatly reduced productivity and a high energy consumption rate, if low-grade ore were charged as-is. The same applies to direct reduction furnaces. Thus, there is a strong desire to improve the iron grade at the stage of raw material preparation. One of the most common approaches is a method of upgrading ore by a beneficiation process using a

Iron Ore Beneficiation Bhp Agreement Act 1996

Iron Ore Beneficiation (BHP) Agreement Act 1996 An Act to ratify, and authorise the implementation of, an agreement between the State and BHP Direct Reduced Iron Pty. Ltd. relating to the establishment and operation of material handling facilities and a plant

direct reduced iron wiki - BINQ Mining

19-04-2013  Direct reduced iron – Wikipedia, the free encyclopedia. Direct-reduced iron (DRI), also called sponge iron, is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas »More detailed

Initiates Collaboration to Study the Production of a ...

23-06-2021  Direct reduced iron to electric arc furnace ... This extra level of beneficiation within Botswana will create added value and benefits in the form of

Minerals Free Full-Text Carbothermic Reduction of ...

In the present paper, beneficiation of Fe and Mn elements from a ferruginous manganese ore via carbothermic reduction followed by magnetic separation process was investigated in detail. The effects of the experimental parameters were systematically discussed. Iron-rich products with an Fe grade of 62.3% and 88.2% of Fe recovery, and manganese-rich product with a Mn grade of 63.7% of and

Direct reduction and beneficiation of a refractory ...

(2014). Direct reduction and beneficiation of a refractory siderite lump. Mineral Processing and Extractive Metallurgy: Vol. 123, No. 4, pp. 246-250.

Iron carbonate ore beneficiation by direct reduction with ...

22-09-2020  Loder, A., Lux, S., Siebenhofer, M. (2020). Iron carbonate ore beneficiation by direct reduction with hydrogen.Poster session presented at 16. Minisymposium ...

HYFOR pilot plant under operation – the next step for ...

24-06-2021  Use of 100% Hydrogen as reduction agent reduces the CO2 footprint close to zero. The HYFOR pilot plant employs the world´s first direct reduction process for iron ore fines concentrates from ore beneficiation, not requiring any agglomeration like sintering or

Direct Reduced Iron (DRI) - Cargo Handbook - the world's ...

Direct-reduced iron has about the same iron content as Pig Iron, typically 90–94% total iron (depending on the quality of the raw ore) as opposed to about 93% for molten pig iron, so it is an excellent feedstock for the electric furnaces used by mini mills, allowing them to use lower grades of scrap for the rest of the charge or to produce higher grades of steel.

Iron Ore Beneficiation Bhp Agreement Act 1996

Iron Ore Beneficiation (BHP) Agreement Act 1996 An Act to ratify, and authorise the implementation of, an agreement between the State and BHP Direct Reduced Iron Pty. Ltd. relating to the establishment and operation of material handling facilities and a plant

direct reduction plant for iron ore supplier in thailand ...

03-06-2013  History – Danieli – The Art of Steel. In those days the Company manufactured tools for forging plants and auxiliary . the leading suppliers of hot and cold rolling plants and processing lines for flat products. The first orders for Direct Reduction plants, pelletizing plants and iron ore in Thailand and China reaching a total manufacturing area of 316,000 sqm,

The role of metallurgy in enhancing beneficiation

Beneficiation, in the context of this paper, has two distinct definitions. From an economic perspective, beneficiation relates to adding value to a mined raw material. ... Scaw Metals produces pig iron by the direct reduction of lump iron ore in long rotary kilns, using coal as the reductant.

A Brief Review of Iron Ore Beneficiation Trace Elements

14-05-2009  Beneficiation is a variety of processes whereby extracted ore from mining is reduced to particles that can be separated into mineral and waste, the former suitable for further processing or direct use. The beneficiation process improves the chemical or physical properties of the ore so that metal may be recovered profitably.

US3936372A - Method for beneficiation of magnesite

A method for beneficiation of magnesite ore wherein the ore is subjected to calcination to decrease the bulk density of the magnesite relative to the gangue. Accordingly, after such calcination, conventional gravimetric separations can be conducted with greatly increased efficiency. When the calcination is conducted in a reducing atmosphere, initially non-magnetic gangue material is converted ...

Minerals Free Full-Text Carbothermic Reduction of ...

In the present paper, beneficiation of Fe and Mn elements from a ferruginous manganese ore via carbothermic reduction followed by magnetic separation process was investigated in detail. The effects of the experimental parameters were systematically discussed. Iron-rich products with an Fe grade of 62.3% and 88.2% of Fe recovery, and manganese-rich product with a Mn grade of 63.7% of and