scholarly journals Processing and production of pellets from poor-grade manganese-containing raw materials

2021 ◽  
Author(s):  
A. Tastanova ◽  
◽  
G. Abdykirova ◽  
S. Temirova ◽  
A. Biryukova ◽  
...  
Keyword(s):  
Magnetic Separation ◽  
Raw Materials ◽  
Manganese Content ◽  
Manganese Ore ◽  
Reduction Roasting ◽  
Processing Methods ◽  
Poor Grade ◽  
Valent State ◽  
Manganese Minerals ◽  
Technogenic Raw Materials

there is a review of current researches in the processing of poor-grade manganese raw materials. The variety of manganese minerals caused by the valent state of metal in compounds is demonstrated. Different processing methods for manganese-containing mineral and technogenic raw materials are considered. The process of extraction of manganese from ferruginous manganese ore using reduction roasting and magnetic separation, beneficiation technology of poor-grade manganese ore to improve the ratio of Mn/Fe; processes of beneficiation and sintering of fine ferruginous manganese ore with low manganese content; production of agglomerate from the concentrate of manganese poor-grade ore to produce ferrosilicon manganese are described. Results of the authors researches intended to obtain concentrate from manganese-containing sludge and to produce hardened pellets suitable for melting into ferromanganese on its basis using a new component of the binder are presented.

scholarly journals MODERN PROCESSING METHODS OF TECHNOGENIC RAW MATERIALS OF ELECTRIC FURNACE STEELMAKING

2018 ◽  
Vol 22 (4) ◽  
pp. 183-190 ◽  
Author(s):  
Aleksei Patrushov ◽  
◽  
Nina Nemchinova ◽  
Vladimir Chernykh ◽  
Andrei Tyutrin ◽  
...  
Keyword(s):  
Electric Furnace ◽  
Raw Materials ◽  
Processing Methods ◽  
Technogenic Raw Materials ◽  
Electric Furnace Steelmaking

Upgrading of low-grade manganese ore based on reduction roasting and magnetic separation technique

2018 ◽  
Vol 54 (1) ◽  
pp. 195-206 ◽  
Author(s):  
Lihua Gao ◽  
Zhenggen Liu ◽  
Mansheng Chu ◽  
Ran Wang ◽  
Zhihao Wang ◽  
...  
Keyword(s):  
Magnetic Separation ◽  
Separation Technique ◽  
Low Grade ◽  
Manganese Ore ◽  
Reduction Roasting

scholarly journals Studies on Beneficiation of Manganese Ore through High Intensity Magnetic Separator

2020 ◽  
Vol 12 (1) ◽  
pp. 21-27
Author(s):  
Waheed Ur Rehman ◽  
Amin Ur Rehman ◽  
Faridullah Khan ◽  
Amir Muhammad ◽  
Mohammad Younas
Keyword(s):  
Magnetic Separation ◽  
Iron Ore ◽  
Manganese Content ◽  
Operating Conditions ◽  
Magnetic Fraction ◽  
Manganese Ore ◽  
Measurable Effect ◽  
Magnetic Separator ◽  
Maximum Value ◽  
Wet Sieving

Upgradation techniques like wet sieving and magnetic separation were used to evaluate the beneficiation potential of manganese ore. During wet sieving, manganese content in raw ore was upgraded from 27% to a maximum value of 38% in the concentrate with a recovery of 30%. Size classification was found to have no measurable effect on manganese grade in magnetic separation. In the unsieved ground ore, manganese content of 45% was achieved with a recovery of 23% and Mn/Fe ratio of 19% at a magnetic intensity of 8500 Gauss. At the same operating conditions, SiO2 was reduced from 56% in the raw ore to 30% in the magnetic fraction. So, wet sieving technique leads to a comparatively lower manganese grade but better recovery. Conversely, a magnetic separation technique produced higher manganese grade but relatively lower recovery. Blending of the upgraded manganese ore with high grade iron ore can be done to achieve the required Mn/Fe ratio.

Sustainable Utilization of GCP Sludge as a Reductant in the Reduction Roasting of Low-Grade Manganese Ore to Recover Mn and Fe Values

2021 ◽  
Author(s):  
Malaya Kumar Jena ◽  
Subhabrata Mishra ◽  
Shaswat Kumar Das ◽  
Syed Mohammed Mustakim ◽  
Adeyemi Adesina
Keyword(s):  
Low Grade ◽  
Manganese Ore ◽  
Sustainable Utilization ◽  
Reduction Roasting

Mechanical and Thermal Properties of Magnesia Binder Based on Natural and Technogenic Raw Materials

2021 ◽  
Vol 320 ◽  
pp. 181-185
Author(s):  
Elvija Namsone ◽  
Genadijs Sahmenko ◽  
Irina Shvetsova ◽  
Aleksandrs Korjakins
Keyword(s):  
Thermal Conductivity ◽  
Thermal Properties ◽  
Raw Materials ◽  
High Strength ◽  
Strength Properties ◽  
Waste Materials ◽  
Mechanical And Thermal Properties ◽  
Experimental Part ◽  
Technogenic Raw Materials ◽  
Caustic Magnesia

Because of low calcination temperature, magnesia binders are attributed as low-CO2 emission materials that can benefit the environment by reducing the energy consumption of building sector. Portland cement in different areas of construction can be replaced by magnesia binder which do not require autoclave treatment for hardening, it has low thermal conductivity and high strength properties. Magnesium-based materials are characterized by decorativeness and ecological compatibility.The experimental part of this research is based on the preparation of magnesia binders by adding raw materials and calcinated products and caustic magnesia. The aim of this study was to obtain low-CO2 emission and eco-friendly material using local dolomite waste materials, comparing physical, mechanical, thermal properties of magnesium binders.

Serpentinite Magnesium Binders, Based on Technogenic Raw Materials

2021 ◽  
Vol 316 ◽  
pp. 1050-1054
Author(s):  
V.N. Zyryanova ◽  
E.V. Lytkina ◽  
A.P. Ochur-Ool
Keyword(s):  
Mechanical Strength ◽  
Water Resistance ◽  
Raw Materials ◽  
Raw Material ◽  
Material Base ◽  
Hardening Process ◽  
Dispersed System ◽  
Technogenic Raw Materials

Increasing water resistance and mechanical strength of hardening magnesian binders’ products can be achieved by introducing microfillings into a hardening dispersed system. It is shown that serpentine provides an increase strength and water resistance in hydration and hardening process, being as a structure-forming component, it intensifies this process. It allows expanding the raw material base for the production of magnesia binders for construction purposes.

scholarly journals Technological study on the Gravity Processing of Manganese Ore

2019 ◽  
pp. 18-22
Author(s):  
Zagarzusem Ts ◽  
Baasanjav D ◽  
Sugir-Erdene N ◽  
Orgilbayar B ◽  
Sukhbat S ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Mineralogical Composition ◽  
Shaking Table ◽  
Petrographic Analysis ◽  
Manganese Ore ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Manganese Minerals ◽  
Technological Study

This study investigated the effectiveness of the gravity beneficiation method based on gravitation and centrifugal forces for manganese ore. Manganese ores from Unagad deposit, samples powders were analyzed for their element and mineralogical composition using inductively coupled plasma mass spectrometry (ICP-MS) and X-ray diffractometer (XRD). Mineralogy and petrographic analysis are presented the mineralogical compositions are hydro goethite, manganese minerals and magnetite, the gangue minerals are quartz, albite, orthoclase, microcline in manganese ore. Manganese mineral occurs white, improper shape particles, weak grained-aggregates associated in gangue minerals. The most important minerals consist of manganese minerals are hausmannite, pyrolusite, rhodochrosite, and manganosite. The composite of feed containing 17.31 % Mn and 36.3 % SiO2 was produced by a centrifugal concentrator in combination with the shaking table. In the experiment, a concentrate assaying 41.37% Mn was obtained from this composite with 11.9 % yields. In the next experiment, f80=0.074mm particle size feed ore was used in the MGS concentration test. A concentrate containing 38.33 % Mn with 26.57 % yields was produced in this experiment. The results showed that it is possible to obtain concentrate on the gravity processing of manganese ore that economically significant and meet standard requirements. Манганы хүдрийг гравитацийн аргаар баяжуулах технологийн судалгаа Хураангуй:  Энэхүү судалгааны ажлаар манганы хүдрийг хүндийн хүч болон төвөөс зугтах хүчний үйлчлэл дээр үндэслэн гравитацийн аргаар баяжуулах туршилт явуулав. Унагад ордын манганы хүдрийн дээжийн элементийн найрлагыг индукцийн холбоост плазмын масс спектрометр (ICP-MS), эрдсийн найрлагыг рентген дифрактометрийн аргаар тодорхойлсон. Минералоги, петрографийн шинжилгээгээр чулуулагт гидрогётит, манганы эрдсүүд, магнетит гэсэн хүдрийн эрдсүүд, кварц, альбит, ортоклаз, микроклин зэрэг хүдрийн бус эрдсүүд тодорхойлогдлоо. Хүдрийн бус эрдэс дотор манганы эрдэс нь цагаан өнгөтэй, зөв бус хэлбэртэй мөхлөгүүд мөн сул шигтгээлэг байдлаар тааралдаж байна. Манганы эрдсүүд нь гаусманит, пиролюзит, родохрозит, манганизит хэлбэрээр агуулагдсан байна. Манганы 17.31%, цахиурын ислийн 36.3% агуулгатай анхдагч хүдрийг төвөөс зугтах хүчний сепаратор болон ширээний хосолсон аргаар баяжуулахад баяжмалын агуулга Mn-41.37%, гарц 11.9% байв. Харин -0.074 мм фракцийн агуулга 80%-тай анхдагч хүдрийг хүндийн хүчний сепаратор (MGS)–аар баяжуулж, 38.33% -ийн манган агуулсан, 26.57% -ийн гарцтай баяжмал гарган авсан. Иймд манганы хүдрийг гравитацийн аргаар баяжуулахад стандартын шаардлага хангасан эдийн засгийн ач холбогдолтой бүтээгдэхүүн гарган авах боломжтойг тогтоов. Түлхүүр үг: Манганы хүдэр, хүндийн хүчний сепаратор, төвөөс зугтах хүчний сепаратор, рентген - дифрактометр.

Sign in / Sign up

Export Citation Format

Share Document