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ALTERNATIVE BINDERS TO BENTONITE FOR IRON ORE

iron ore, water and a binder are balled in a mechanical disc or drum to produce wet pellets. Bentonite is the most widely used binder in iron ore pelletizing industry. The use of bentonite is favorable in terms of physical, mechanical and metallurgical pellet properties, however, because of its acid constituents (SiO 2 and Al 2 O

ALTERNATIVE BINDERS TO BENTONITE FOR IRON ORE

Bentonite is the most widely used binder in iron ore pelletizing. The use of bentonite is favorable in terms of physical, mechanical and metallurgical pellet qualities, however, because of its acid constituents (SiO 2 and Al 2 O 3) it is considered as an chemical impurity especially for concentrate with high SiO 2 content.

(PDF) ALTERNATIVE BINDERS TO BENTONITE FOR IRON ORE

Hence, the suggested combined binders can be used as binder in place of bentonite in iron ore pelletizing without compromising the pellet chemistry. Reducibility of magnetite pellets

Effectiveness of Organic Binders for Iron Ore Pelletization

EFFECTIVENESS OF ORGANIC BINDERS FOR IRON ORE PELLE"nZATION By Larry A. Haas,1 Jeffrey A. Aldinger,2 and Robert K. Zahl3 ABSTRACT The U.S. Bureau of Mines investigated the use of organic binders as substitutes for bentonite in

Advances in Alternative Binders for Iron Ore Pellets

Advances in Alternative Binders for Iron Ore Pellets. McDonald, Jacob Eugene Dale. Abstract. The replacement of bentonite as the standard iron ore binder is an important factor in the future of iron processing. Bentonite adds unwanted silica to the final concentrated iron ore product. Excess silica from bentonite addition has been calculated to

WO2009109024A1 Binder composition for pelletizing iron

The present invention refers to a binding composition containing bentonite for use in binding finely ground iron ore. The composition of the invention comprises bentonite and molasses. The invention also refers to process for preparing iron ore pellets wherein a composition comprising bentonite and molasses is used as binder.

ALTERNATIVE BINDERS TO BENTONITE FOR IRON ORE

Bentonite is the most widely used binder in iron ore pelletizing. The use of bentonite is favorable in terms of physical, mechanical and metallurgical pellet qualities, however, because of its acid constituents (SiO 2 and Al 2 O 3) it is considered as an chemical impurity especially for concentrate with high SiO 2 content.

Advances in Alternative Binders for Iron Ore Pellets

Advances in Alternative Binders for Iron Ore Pellets. McDonald, Jacob Eugene Dale. Abstract. The replacement of bentonite as the standard iron ore binder is an important factor in the future of iron processing. Bentonite adds unwanted silica to the final concentrated iron ore product. Excess silica from bentonite addition has been calculated to

Iron Ore Pelletizing Process: An Overview IntechOpen

Jul 11, 2018 Bentonite, an inorganic binder, has been the main binder used in the iron ore pelletizing process since the beginning of pellet production in the 1950s. Bentonite promotes the formation of ceramic bridges between particles, which can minimize the number of pellets that collapse during firing.

US3779782A Bentonite binder composition Google Patents

A bentonite binder composition and method of preparation is disclosed. The binder composition is particularly useful for pelletizing iron ore fines. It is prepared by intimately combining and mixing wet bentonite in a stockpile with soda ash, the moisture in the wet bentonite bringing about reaction to form an improved binder after a suitable aging period.

WO2009109024A1 Binder composition for pelletizing iron

The present invention refers to a binding composition containing bentonite for use in binding finely ground iron ore. The composition of the invention comprises bentonite and molasses. The invention also refers to process for preparing iron ore pellets wherein a composition comprising bentonite and molasses is used as binder.

Use of Boron Compounds as Binders in Iron Ore

In pelletizing, iron ore, water and a binder are balled in a mechanical disc or drum to produce agglomerates. Bentonite is the most widely used binder. However, it is considered as an impurity due to its high SiO 2 and Al 2O 3 content. Many researchers have investigated different binders, mostly of organic origin, in pursuit of finding a viable

Reduction Kinetics of iron ore pellets and effect of binders

Mechanisms in wet iron ore green pellets with a bentonite binder” Powder Technology 169 ((2006) 147-158 2. Coetsee T., Pistorius P.C, Villiers E.E D. “Rate determining steps for reduction in magnetite-coal pellets” –, Minerals Engineering 15 (2002) 919-929 3. Ripke S.J., Kawatra S. K. “Can fly-ash extend Bentonite binder for iron ore

PAPER OPEN ACCESS Related content Characterization of iron

(0.5 and 1 w.t % of dextrin and I w.t % bentonite) and without binder added to the iron ore and pellets were prepared. 2.1.3. Preparation of Iron Ore Pellets. The green pellets were prepared by mixing of dry concentrate of iron ore particles, required amount of moisture (Water ≈10%) and pre-defined binder percentage, for 5-10 min.

Study of Organic and Inorganic Binders on Strength of Iron

Bentonite is a predominant binder used in iron ore pelletization. However, the presence of a high content of silica and alumina in bentonite is considered undesirable for ironmaking operations. The objective of this study was to identify the alternatives of bentonite for iron ore pelletization. To achieve this goal, different types of organic and inorganic binders were utilized to produce iron

IMPROVEMENT OF MECHANICAL STRENGTH OF IRON ORE

The binding of iron oxide grains by bentonite clay to form pellets is a complex process, with a large number of variables, many of which have never been adequately studied. Current practice for pelletizing iron ore concentrates was developed in 1950’s during which bentonite clay was practiced as a binder and since then it has remained

BASF NOVEL IRON ORE BINDER TECHNOLOGY: STUDY OF

binders added to bentonite, to form a hybrid-binder system for Iron Ore Pelletization. The kinetics of the agglomeration process and resulting properties of green pellets were analyzed, and examined in detail through Scanning Electron Microscopy (SEM)

Effect of Bentonite on the Pelleting Properties of Iron

Jan 01, 2017 Bentonite is a traditional metallurgical pellet binder, which ensures that the dry and roasted pellets have certain strength properties that meet transportation requirements [2]. Bentonite is a hydrated clay mineral with montmorillonite as its main constituent. [11] H. Q. Zhang, "Application of bentonite in iron ore oxidation pellets

Effect of Bentonite on the Pelleting Properties of Iron

Jun 22, 2017 The physical and chemical properties such as particle size, montmorillonite content, swelling degree, water absorption, and blue absorption of A, B, and C bentonites were studied under laboratory conditions. The effects of adding different quality and different proportion of bentonite on falling strength, compression strength, and shock temperature of green pellet

Binding mechanisms in wet iron ore green pellets with a

Binding mechanisms in wet iron ore green pellets with a bentonite binder. show the variations in plasticity and strength of magnetite iron ore green pellets with varying liquid saturations and binder dosages (viscosities). For this purpose, a new measuring instrument was built to analyze the green pellet wet compression strength, plastic

BASF NOVEL IRON ORE BINDER TECHNOLOGY: STUDY OF

binders added to bentonite, to form a hybrid-binder system for Iron Ore Pelletization. The kinetics of the agglomeration process and resulting properties of green pellets were analyzed, and examined in detail through Scanning Electron Microscopy (SEM)

Effectiveness of organic binders for iron ore pelletization

"The U.S. Bureau of Mines investigated the use of organic binders as substitutes for bentonite in agglomerating iron ore concentrate. Over 30 organic binders were evaluated at several dosage levels in laboratory tests. The binder groups producing the greatest green pellet strengths were natural gums (guars), carboxyl methyl celluloses, and

Use of Boron Compounds as Binders in Iron Ore

In pelletizing, iron ore, water and a binder are balled in a mechanical disc or drum to produce agglomerates. Bentonite is the most widely used binder. However, it is considered as an impurity due to its high SiO 2 and Al 2O 3 content. Many researchers have investigated different binders, mostly of organic origin, in pursuit of finding a viable

Effect of Bentonite on the Pelleting Properties of Iron

Jan 01, 2017 Bentonite is a traditional metallurgical pellet binder, which ensures that the dry and roasted pellets have certain strength properties that meet transportation requirements [2]. Bentonite is a hydrated clay mineral with montmorillonite as its main constituent. [11] H. Q. Zhang, "Application of bentonite in iron ore oxidation pellets

Lotta Casey ORGANIC BINDERS FOR IRON ORE

during pre-heating, contrary to bentonite clays commonly used in pelletizing iron ore for blast furnaces. Due to the need to process increasing volumes of low grade iron, interest in organic binders has increased lately. Organic binders tend to produce good quality wet pellets which however often lack in compressive strengths after sintering.

FLOFORM ™ Iron Ore Pelletization

FLOFORM™ Iron Ore Pelletization FLOFORM™, an alternative Traditionally bentonite is used as binder, but it reintroduces deleterious elements such as silica and alumina. FLOFORM is typically dosed at 0.01-0.05% prior to balling, i.e. about 1/20th of Bentonite. Depending on the quality of iron ore, a dual binder system comprising both

PAPER OPEN ACCESS Related content Characterization of iron

(0.5 and 1 w.t % of dextrin and I w.t % bentonite) and without binder added to the iron ore and pellets were prepared. 2.1.3. Preparation of Iron Ore Pellets. The green pellets were prepared by mixing of dry concentrate of iron ore particles, required amount of moisture (Water ≈10%) and pre-defined binder percentage, for 5-10 min.

Bentonite for metallurgy pellet BariteWorld

1) The bentonite binder use in metallurgy pellet binder for iron ore pellet, can be used in a variety of fine iron ore sand bond pellets. The product can obviously increase raw pellet strength and ruptures temperature to expand roasting area, the permeability of raw material layer is good, and improved pellet quality, reduce cost, can obviously

IMPROVEMENT OF MECHANICAL STRENGTH OF IRON ORE

The binding of iron oxide grains by bentonite clay to form pellets is a complex process, with a large number of variables, many of which have never been adequately studied. Current practice for pelletizing iron ore concentrates was developed in 1950’s during which bentonite clay was practiced as a binder and since then it has remained

Alcotac synergistic organic binders

Binders are used to make the moist ore plastic so that seeds are nucleated and pellets grow at a controlled rate. The binder holds the green pellet together until strong bonds are formed in the induration process where the agglomerates sinter together at temperatures of around 1300°C. Bentonite was the first binder used and is still employed today

Characterization of Humic Acid Modified Bentonite Binder

Anew kind of iron ore pellet binder named humic acid modifying bentonite (HA-MB) has been developed by the author’s group, which has the advantages of both organic HA and inorganic bentonite. The green pellet strength can be obviously improved by using the HA-MB binder. In this study, the detection of the characterization of HA-MB was

REDUCTION KINETICS OF IRON ORE PELLETS AND THE

in wet iron ore green pellets with a bentonite binder” Powder Technology 169 ((2006) 147-158 2. Coetsee T., Pistorius P.C, Villiers E.E D. “Rate determining steps for reduction in magnetite-coal pellets” –, Minerals Engineering 15 (2002) 919-929 3. Ripke S.J., Kawatra S. K.

Binding mechanisms in wet iron ore green pellets with a

Industrial iron ore green pellets are over-saturated and a supporting "network" of viscous liquid is formed on the green pellet surface. At least half, probably more, of the total binding force appeared to be due to the cohesive force of the network. The other half (or less) of the total compression strength can be explained by the capillary force.

Bentonite Pellets For Iron Ore Pellets Binder Bentonite

Bentonite Pellets For Iron Ore Pellets Binder Bentonite Power,Find Complete Details about Bentonite Pellets For Iron Ore Pellets Binder Bentonite Power,Bentonite Clay Pellets,Pelletizers For Sale,Brazil Iron Ore Pellets from Bentonite Supplier or Manufacturer-Shijiazhuang Quanfeng Minerals Co., Ltd.