Magnetizing Calcination

Magnetization roasting process of iron ores in the rotary kiln.

Mining waste that is rich in iron-, calcium- and magnesium-bearing minerals can be a potential feedstock for sequestering CO2 by mineral carbonation. This study highlights the utilization of iron...

CN103614546A

The invention discloses a magnetization roasting method and device of siderite, an application of the device. The magnetization roasting method of the siderite comprises the steps of preparing materials and roasting, and concretely comprises the following steps: screening and crushing, and putting into a roasting container; putting the roasting container into a heating furnace, warming …

Recovery of iron from Baotou rare earth tailings by magnetizing roast

The results show that the best magnetizing roast conditions are calcination temperature of 650 °C, holding time of 2.5 h, and carbon/oxygen molar ratio of 3.85. The best magnetization rate is 2. ...

CN103614546B

The invention discloses a kind of spathic iron ore magnetizing roasting method and device thereof and application, spathic iron ore magnetizing roasting method comprise get the raw materials ready, calcination steps, specifically comprising sieving approach inserts in calcination vessel, calcination vessel puts into process furnace, process furnace is warming up to 800 ~ …

The magnetizing calcination of ores

the magnetizing calcination of iron ores in a cylindrical, revolving furnace 18 m in length and with an effective volume of 14 m ~. The furnace was fired with coal dust having a calorific power of …

CN1776421A

CN1776421A CN 200510019932 CN200510019932A CN1776421A CN 1776421 A CN1776421 A CN 1776421A CN 200510019932 CN200510019932 CN 200510019932 CN 200510019932 A CN200510019932 A CN 200510019932A CN 1776421 A CN1776421 A CN 1776421A Authority CN China Prior art keywords pipeline furnace reacting furnace communicated gas generator …

INSTALLATION FOR MAGNETIZING GRINDING

SU312875A1 - INSTALLATION FOR MAGNETIZING GRINDING - Google Patents INSTALLATION FOR MAGNETIZING GRINDING Info Publication number ... 238000001354 calcination Methods 0.000 description 6; 239000000446 fuel Substances 0.000 description 6; XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] ...

CN106755969B

A kind of method of reinforced by additive bloodstone magnetizing roast, carries out according to the following steps：（1）Using magnetite concentrate as additive, it is added in ground hematite and abundant mixing；（2）Using gaseous reducing agent or solid reductant as medium, mixed mineral powder is roasted；（3）Then water quenching cooling carries out ore grinding and …

WO2005026397A2

This invention relates to a process and a plant for the heat treatment of solids contain­ing titanium. For this purpose, the fine-grained solids are heated to a temperature of 700 to 1000 °C in a reactor (4) with circulating fluidized bed and are partly discharged from the reactor (4) together with waste gases into a downstream separator (9).

Reextraction of nonferrous and noble metals from rejects of

É. K. Yakubailik and E. V. Mymlikova, Magnetizing Calcination of Sulfide Ores: Application of Chemical-Metallurgical Techniques in Mineral Concentration Schemes [in Russian], Karaganda (1987). Download references

Adverse Effects of 9 Elements in Iron Ore on Its Smelting

In this study, a process of magnetizing roasting followed by low-intensity magnetic separation (MR-LMS), which is used to separate and recover iron from a low-grade carbonate …

The magnetizing calcination of ores | Metallurgist

The article presents the basic results of research on the magnetizing calcination of ores carried out in the member countries of SEV: the Czechoslovakian Socialist Republic, The Rumanian …

Effects of biomass reducing agent on magnetic properties …

The effect of calcination temperature, time and ratio of reducing agent on the magnetic properties of calcined ore was studied by VSM. The phase and microstructure changes of li … Effects of biomass reducing agent on magnetic properties and phase transformation of Baotou low-grade limonite during magnetizing-roasting

The magnetizing calcination of ores

Semantic Scholar extracted view of "The magnetizing calcination of ores" by G. Gubin. Semantic Scholar extracted view of "The magnetizing calcination of ores" by G. Gubin. Skip to search …

RU2471564C1

A method of processing siderite ores, including crushing and screening of the original ore, magnetizing calcination, dry magnetic separation of the calcined product and leaching of magnesium oxide from the magnetic fraction with an acid solution, characterized in that the magnetizing calcination is carried out under conditions that prevent the ...

Recovery of iron from Baotou rare earth tailings by magnetizing roast

The results show that the best magnetizing roast conditions are calcination temperature of 650 °C, holding time of 2.5 h, and carbon/oxygen molar ratio of 3.85. The best magnetization rate is 2.36, which is close to the theoretical value of 2.33.

Recovery of iron from Baotou rare earth tailings by …

CN212894891U

The utility model relates to the technical field of iron ore magnetization reduction, in particular to a multi-section type magnetization roasting reduction rotary kiln system, wherein, the first section of the roasting rotary kiln is provided with an inclined first rotary cylinder body, the high end of the first section of the roasting rotary kiln is provided with a first feeding channel, the ...

WO2006097569A1

This invention relates to a process and a plant for the heat treatment of solids containing titanium. For this purpose, the fine-grained solids are heated to a temperature of 700 to 1000°C in a reactor (4) with circulating fluidized bed and are partly discharged from the reactor (4) together with waste gases into a downstream separator (9).

CN104745802A

The invention provides a process for magnetizing roasting of a tunnel kiln of iron ores with the particle sizes of 15mm or less than 15mm. The process comprises the following steps: dividing the iron ores with the particle sizes of 0-15mm or less than 0-15mm into three types; preparing an upper layer spreading material, a lower layer spreading material and an auxiliary mixture; …

Flotation-Calcination-Magnetic Separation Hybrid Process …

Article on Flotation-Calcination-Magnetic Separation Hybrid Process for Concentration of Rare Earth Minerals Contained in a Carbonatite Ore, published in Journal of Minerals and Materials Characterization and Engineering 09 on by Tesfaye Negeri. Read the article Flotation-Calcination-Magnetic Separation Hybrid Process for Concentration …

CN110172569A

The method that iron ore concentrate is produced using agricultural crop straw as reducing agent suspending magnetization roasting of the invention, step are as follows: using Refractory iron ore stone as raw material, after being crushed ore grinding, filtering means dehydration to water content≤12% obtains suspension roasting raw ore；Agricultural crop straw is taken, …

Effects of biomass reducing agent on magnetic properties …

The effect of calcination temperature, time and ratio of reducing agent on the magnetic properties of calcined ore was studied by VSM. The phase and microstructure changes of limonite before and after calcination were analyzed by XRD and SEM.

The magnetizing calcination of ores | Metallurgist

The article presents the basic results of research on the magnetizing calcination of ores carried out in the member countries of SEV: the Czechoslovakian Socialist Republic, The Rumanian Peple's Republic, and the USSR.

The magnetizing calcination of ores

the magnetizing calcination of iron ores in a cylindrical, revolving furnace 18 m in length and with an effective volume of 14 m ~. The furnace was fired with coal dust having a calorific power of 5500 kcal/kg. Limonite and siderite ores were calcined.

Mineral Magnetic Modification of Fine Iron Ore …

Additionally, we proposed a new approach for magnetic separation of fine magnetically modified tailings based on the combination of permanent and alternating magnetic fields. Magnetizing roasting resulted in an …

Flotation-Calcination-Magnetic Separation Hybrid Process …

Flotation-Calcination-Magnetic Separation Hybrid Process for Concentration of Rare Earth Minerals Contained in a Carbonatite Ore [PDF] Related documentation A Review of Flotation …

Conversion of iron compounds in coal tailings from the …

Made available by U.S. Department of Energy Office of Scientific and Technical Information ...

Research on the Magnetizing Roasting and Magnetic …

The optimum conditions are: the grinding fineness is 87%, calcination temperature is 750 ℃, roasting time is 25min, magnetic current is 1.5A under conditions to obtain a grade of 59% recovery ...

(PDF) Magnetization Roasting of Refractory Iron Ores: A …

In this study, a process of magnetizing roasting followed by low-intensity magnetic separation (MR-LMS), which is used to separate and recover iron from a low-grade carbonate-bearing iron ore...