Digestion Process Of Ilmenite And Slug

Pilot-Scale Demonstration of Ilmenite Processing Technology

Pilot-Scale Demonstration of Ilmenite Processing Technology UMD NRRI ii Executive Summary The mineral ilmenite is an iron-titanium oxide (FeTiO 3) which is concentrated within small oxide-bearing ultramafic intrusions (OUI) associated with the Duluth Complex in northeastern Minnesota

The digestion of New Zealand ilmenite by hydrochloric acid

Ilmenite (FeTiO3) is an important source of titanium, for which the main application is TiO2 pigment One route to the production of TiO2 from ilmenite may be the digestion of both the Fe and Ti components in hydrochloric acid and the subsequent direct hydrolysis of the Ti The process requires that the Ti be solubilized

IRON REMOVING FROM TITANIUM SLAG FOR SYNTHETIC …

problems for pigment production Nevertheless, ilmenite has been used as an alternate feed material for production of pigment through stone routes (Samala et al, 2009) Commercial production of TiO 2 pigment uses either the sulfate process or chloride process In the former process, relatively low grade feedstock can be used, but it gives

New developments in the Altair TiO2 hydrochloride pigment

The Altair process employs digestion of ilmenite ore in concentrated hydrochloric acid, solvent extraction to concentrate Ti in a purified stream and spray hydrolysis to produce a TiO2 hydrate

Slugs - Phylum Digestive System

Digestive system The stone will then be broken down by the enzymes secreted by the salivary and digestive glands Undigested stone will become feces that are eliminated through the anus, and nitrogen-containing waste, ammonia that resulted from the cellular metabolism will be removed from the body fluid through the tube-like nephridia

Ilmenite And Rutile Ores Mining And Processing

Titanium dioxide - The Essential stone Industry There are two main processes, the Sulfate Process and the Chloride Process (Table 1) which use the two principal ores, ilmenite and rutile, respectively The ores are mined worldwide but most production is in Australia and South Africa

US4089675A - Combination beneficiation ilmenite digestion

2 A process according to claim 1 wherein said ilmenite digestion liquor is contacted with said reduced ilmenite at a temperature between about 20° and 55° C and thereafter the mixture of said reduced ilmenite and said ilmenite digestion liquor warmed to a temperature between 55° C and the boiling point of said ilmenite digestion liquor

Titanium Oxide or Titania Pigment by Ilmenite

Ilmenite Beneficiation Process - bwellmx

ilmenite beneficiation An improved digester method and apparatus particularly useful in the digestion stage of a process for Ilmenite beneficiation process and a Chloridization beneficiation of ilmenite -

Preparation of Titanium Dioxide Anatase Pigment from

Preparation of Titanium Dioxide Anatase Pigment from Rosetta Ilmenite Concentrate via the Sulfate Route ( 135 ) / ilmenite weight ratio was fixed at 25 / and the ap- plied digestion temperature was fixed at 250 ċThe obtained digestion efficiency of TiO 2 Table …

US4089675A - Combination beneficiation ilmenite digestion

2 A process according to claim 1 wherein said ilmenite digestion liquor is contacted with said reduced ilmenite at a temperature between about 20° and 55° C and thereafter the mixture of said reduced ilmenite and said ilmenite digestion liquor warmed to a temperature between 55° C and the boiling point of said ilmenite digestion liquor

Isolation and Characterization of the Mineral Phases in

), which represent 5% of the total Ti present in the raw material [11,12] Also, this sludge is formed by several refractory mineral phases as unattached ilmenite, rutile, quartz and zircon coming from the commercial ilmenite used in the industrial process [13,14]

Ilmenite Beneficiation Process - bwellmx

ilmenite beneficiation An improved digester method and apparatus particularly useful in the digestion stage of a process for Ilmenite beneficiation process and a Chloridization beneficiation of ilmenite -

Effects of mechanical activation on the digestion of

Unlike the chlorination process using TiO 2-rich (> 90%) raw materials, the sulfate process can directly use ilmenite (40%–50% TiO 2) as the feeding material More than 90% of titanium mineral resources are in the form of ilmenite, that is generally a low-grade, complex, polymetallic ore with stable physicochemical properties

Sulfate digestion process for high purity TiO2 from

A titania slag product of Rosetta ilmenite assaying 72% TiO 2 is treated by the sulfate process option of the pigmentary TiO 2 manufacture The relevant factors of acid concentration, particle size, slag/acid ratio besides the reaction temperature, and time have been studied

A New Process to Upgrade Ilmenite to Synthetic Rutile

Ilmenite occurs in black sand at the mouth of great rivers as in India, or as massive deposits like in Quebec Province in Canada It is unsuitable for processing into pig-

Welham version Pos - UPSpace

• reduces the time consumed in the traditional digestion process • addresses the concerning problem of acid disposal, reducing the amount of acid required for digestion • has the ability to process all types of titaniferrous ores (Mellor, 1960; Nielsen and Chang, 1996) …

1 J Gambogi, Titanium and Titanium Dioxide, from Mineral

1 J Gambogi, "Titanium and Titanium Dioxide," from Mineral Commodity Summaries, US Bureau of Mines, January 1995, p 180 chloride, or chloride-ilmenite process The sulfate process, used at only two US plants, employs digestion of ilmenite ore or TiO Scrap iron is added to the digestion process to ensure that iron impurities

Sewage sludge treatment - Wikipedia

Anaerobic digestion is a bacterial process that is carried out in the absence of oxygen The process can either be thermophilic digestion, in which sludge is fermented in tanks at a temperature of 55 °C, or mesophilic, at a temperature of around 36 °C Though allowing shorter retention time (and thus smaller tanks), thermophilic digestion is more expensive in terms of energy consumption for heating the sludge

New insights into the petrogenesis of the Jameson Range

(R2 = 089) possibly suggesting a process that results in the coaccumulation of ilmenite and zircon in distinct layers (Fig 15) The high Zr concentrations in the magnetitites could also reflect high abundances of Zr in ilmenite

RESEARCH ARTICLE - Springer

In these processes, the ilmenite concentrate is mixed with subbituminous coal and subjected to reduction at 1200°C FeO:TiO 2 þC!ðFeþTiO 2ÞþCO 2 Fe þTiO 2 O 2!FeO 2 In spite of high consumption, smelting of ilmenite or othertitanium-bearingoreshasseveraladvantagesoverthe synthetic rutile route by stone process according to Sahu et al [5]

2013 Annual Meeting - Conferences & Events | AIChE

In fact, the process can be simply described as: concentrated acid ® dissolution of ilmenite ® purification ® hydrolysis ® dilute acid Recycling dilute acid can solved the emmision problem In a commercial process, the ilmenite was leached with a concentrated sulfuric acid of 98% at about 200°C

(220i) A New Sulfuric Acid Recycle Routine in TiO2 Pigment

The solving method is reducing the initial digestion acid concentration and recycle the hydrolysis spend acid The mechanically activation of ilmenite greatly enhances the leaching process and makes it possible to leach the ilmenite with dilute acid It will be a sustainable process of TiO 2 pigment production

TITANIUM TETRACHLORIDE PRODUCTION BY THE …

TITANIUM TETRACHLORIDE PRODUCTION BY THE CHLORIDE ILMENITE PROCESS Technical Background Document The sulfate process, used at only two US plants, involves digestion of ilmenite ore or TiO 2-rich slag with sulfuric acid to produce a cake, which is purified and

Production, Manufacturing and Extraction of

Production, Manufacturing and Extraction of Silver, Gold, Copper, Magnesium, Chromium, Acid, Indium, Titanium (Electroplating and Chemicals) entrepreneurindiaco Introduction Electroplating is a process that uses electrical current to reduce dissolved metal cations so that Hydrochloric Acid Digestion of Ilmenite

ilmenite processing plantilmenite processing plant - Minevik

ilmenite ore processing plant , Ilmenite beneficiation process and a , An improved digester method and apparatus particularly useful in the digestion stage of a Ilmenite Ore Mining Process - Ilmenite Ore Beneficiation Plant ilmenite Ore Processing PlantIlmenite Ore Beneficiation Plant Because Ilmenite Ore relativel Ilmenite Mining,ilmenite Bene

(220i) A New Sulfuric Acid Recycle Routine in TiO2 Pigment

The solving method is reducing the initial digestion acid concentration and recycle the hydrolysis spend acid The mechanically activation of ilmenite greatly enhances the leaching process and makes it possible to leach the ilmenite with dilute acid It will be a sustainable process of TiO 2 pigment production

TITANIUM TETRACHLORIDE PRODUCTION BY THE …

Titanium dioxide pigment is manufactured through either the sulfate, the chloride, or the chloride-ilmenite process pigment The sulfate process generates sulfuric acid wastes in as much as two times the product weight, resulting in the need for expensive treatment by neutralization before disposal of the wastes

DISSOLUTION OF ILMENITE IN SULPHURIC ACI UNDED R …

pigment making process is- required to solubilise thi iros n wit thh e production of ferrous sulphat whice ihs wasted In addition , strong acids (70-95$) have bee n found to be essential for the digestion of ilmenite concentrates However, ilmenit cae n react to a limited' exten t with dilute

Decomposition kinetics of titanium slag in sodium

Decomposition kinetics of titanium slag in sodium hydroxide system The sulphate process is based on the digestion of the ilmenite with sulfuric acid, followed by thermal hydrolysis of the titanium (IV) ions in highly acidic solutions, and then by the a novel metallurgical process for ilmenite and titanium slag has been developed by

How Do Birds Eat? - Digestion Facts - The Spruce

How Birds Digest Their stone Digestion is a multi-step process that begins with finding stone and ends when indigestible waste is expelled from the bird's body Birds have different dietary preferences and find foods in different ways, but they are all opportunistic feeders and will often sample many different foods

Ilmenite: The titanium mineral ilmenite information and

Ilmenite is the most important ore of the element titanium It has recently surpassed Rutile as the main ore mineral of that metal Ilmenite was once used as a minor ore of iron prior to the discovery of titanium as an industrially important metal

titanium processing | Technology, Methods, & Facts

Titanium processing: Titanium processing, the extraction of titanium from its ores and the preparation of titanium alloys or compounds The predominate minerals are rutile, which is about 95 percent titanium dioxide (TiO 2), and ilmenite (FeTiO 3), and several benefits can accrue from employing titanium on the process side of heat

ilmenite processing method - meccanicadistributoriit

Ilmenite Ore Processing Methods: We feed ore into a series of crushers and grinding mills to reduce the size of the ore particles and expose the mineral Ilmenite beneficiation process and a digester method , May 26, 1981· An improved digester method and apparatus particularly useful in the digestion stage of a process for the beneficiation of

Preliminary investigations on alkali leaching kinetics of

This process of soda ash roasting is one of the best processes for preparation of high purity synthetic rutile assaying about 9721% TiO2 It is found that digestion of the ground ilmenite slag in 4 M NH4 In the pyrometallurgy process, ilmenite is partially reduced

ilmenite beneficiation process in zimbabwe

The Ilmenite Beneficiation Plant is designed and installed based on the BCA Cyclic Process ilmenite beneficiation process ititalcher Ilmenite beneficiation process and a digester method An improved digester method and apparatus particularly useful in the digestion stage of a process for the

US2830892A - Process for the separation and recovery of fe

High Iron Bauxite Electric Furnace (Covered) Iron M 0 TiO l35%C Slug and Impurities Mum ii Acid D gestion H 50 (60%+ Cone) Inpresent practice,titanium dioxide is ordinarily produced from ilmenite by digestion with concentrated sulfuric acid, dissolution of the cakewith water,- clarifiication of the solution of iron and titanium sulfates

RHEOLOGICAL PROPERTIES OF ACTIVATED SLUDGE …

fermentation process allows for optimization of the choice of pumps and mixers These elements are of crucial importance for correct working of closed fermentation chambers (Baudez, 2006) and dewatering process (Gilles et al, 2005, Örmeci, 2007)