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Separation Chromite Ores From Ilmenite

A discussion of magnetic separation techniques for concentrating ilmenite and chromite ores processing of ferruginous chromite ore by dry.

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  • A discussion of magnetic separation techniques for

    This invention pertains to purification of ilmenite more specifically, this invention pertains to purification of ilmenite concentrates whereby the chromite fraction thereof is removed with simple processing steps to the levels found to be acceptable for ilmenite in its various applications. still further, this invention pertains to a two step magnetic separation of ilmenite whereby ilmenite of very low chromium concentration is obtained as a result of the two step coaction.

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  • Us3935094a magnetic separation of ilmenite google

    Various investigations have heretofore been conducted for the separation of chromites from ilmenite and these have generally relied upon the magnetic properties of the chromite present in ilmenite.

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  • Separation chromite ores from ilmenite

    The magnetic behavior of ilmenite and the susceptibility of the same to magnetic treatment is fairly well illustrated in the article authored by westcott et al., journal of geophysical research, volume 73, no. 4, pages 1269 to 1277 1968 australian. based on the disclosure in this article, the magnetic properties of ilmenite are fairly well understood such as the function of particle sizes as well as treatment of the same under oxidizing conditions.

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  • Wo1990004656a1 refining of ilmenite by removal of

    Consequently, this article describes the separation of ilmenite to a degree which is still unacceptable for many purposes desired by the end users.

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  • Separation ilmenite ore

    In accordance with the invention, it has now been found that ilmenite from various sources can be purified. ores which provide the ilmenite are those found on the east coast of south africa, e.g., richard39s bay and ste. lucia, and on the east coast of australia, e.g., stradbrooke island. richard39s bay ore which has been concentrated has an assay of 47.5 percent tio2 36.5 percent fe and 0.40 percent cr2 o3. the ilmenite concentrate is then subjected to a magnetic separation in a wet separation process and the high magnetically susceptible chromite contaminant is removed therefrom.

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  • Ilmenite separation

    The assay of the magnetics which are separated from the primary concentrate consists of chromite and cr2 o3 bearing mineral of about 20 percent of the chromite present in the primary concentrate. as indicated above, the primary concentrate contains 0.40 percent chromite expressed as cr2 o3.

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  • Ilmenite magnetic separation machine

    The non-magnetics from the separation step are ilmenite and chromite impurities associated therewith.

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  • Ilmenite concentrate separation

    The non-magnetics are then subjected to roasting under oxidizing conditions at a temperature between 690c to 810c, but preferably at 750c for a period from ten minutes to forty-five minutes, but preferably for fifteen minutes.

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  • Heavy minerals processing plant design machine amp install

    The roasting of the particles may be achieved in known process equipment such as a fluidized bed or rotary kiln as the means for heating the ilmenite particles. the fuel being augmented with up to 15 percent o2 but preferably 1 percent to 5 percent excess of oxygen with respect to the stoichiometric requirements for the burning of the fuel and combustible impurities.

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  • Wo1990004656a1 refining of ilmenite by removal of

    Refining of ilmenite by removal of excess chromite. this invention relates to treatment of metalliferous ores containing chromite, more particularly to reduce the chromite content thereof.

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  • Acidic medium flotation separation of chromite from

    Flotation behavior of sudanese chromite ores 1 ... flotation offers an alternative concentration process for the separation of the fine materials ... hydrofluoric acid, sodium fluoride or sodium silicofluoride in the flotation medium. ... fines, chromite the medium particles and olivine the coarse. ... chromite sample and a high grade serpentine using sodium oleate as the collector.

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  • Ilmenite secondary separation

    Ii a leaching or aeration step, and iii a magnetic separation step. in step i, the iron contents of the metalliferous ores containing chromite are partially converted to metal by gaseous or carbothermic reduction. after such reduction mineral which has not been metallised may be separated by magnetic separation. this mineral may include a proportion of chromite in the feed.

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  • Ilmenite concentrate separation

    Ilmenite ore processing in china-by coal and separation of metallic iron with production of synthetic rutile titania in the synthetic rutile is converted to titanium tetrachloride which is processed further to tita-nia pigment or titanium metal 1 under strong reducing conditions at 1200 1300176c tita-nium oxides in the ilmenite concentrate are reduced to tita-nium oxycarbide

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  • Dressing equipment for ilmenite ore separation

    The process of the invention may or may not include the gainful recovery of chromium values from the chromite originally present in the metalliferous ores. the separated chromium bearing fraction may be upgraded for sale or simply discarded.

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  • Chromite iron gravity separation mineral processing ore

    An example of a difficult separation of chromite is the removal of chromite from ilmenite. ilmenite concentrates are only useful for titania pigment production by sulphate solution and hydrolysis where the contained chromium levels are low e.g. less than 0.1 cr since chromium acts to discolour white titania pigment.

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  • Ilmenite magnetic separation machine

    Ilmenite from the australian east coast typically contains 0.5 - 2 cr-,0-, and only a fraction of the ilmenite e.g. 50 can be recovered by magnetic separation as low chromium ilmenite. the remaining ilmenite has to be sold into low value applications such as a flux in blast furnace iron making or as a sand blasting medium or as abrasive. alternatively it has to be sold at low prices for use in high cost processes for synthetic rutile production. frequently ilmenite is stockpiled as an unsaleable by-product because of its chromium contamination.

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  • Heavy minerals processing plant design machine amp install

    Broadly the major problems associated with chromite removal and recovery evident in the prior art can be related either to poor recoveries in separation due to indistinct bands of magnetic susceptibility or other separation parameters concomitantly with the increased cost of the greater process sophistication required, which cannot be recovered from added value in the product.

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  • Complete ilmenite ore beneficiation process plant

    It is the object of the present invention to overcome, or at least alleviate some of these difficulties. according to a preferred embodiment of this invention a process is provided for removal or upgrading and recovery, if desired, of chromium values present in chromite in metalliferous ores or concentrates, more particularly ilmenite.

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  • Separation techniques chromite

    Separation chromite ores from ilmenite stone quarry plant a discussion of magnetic separation techniques for a discussion of magnetic separation techniques for concentrating ilmenite and chromite ores. get price. method of separation of chromite sand from binq mining topics include the separation of chromite sand from silica . get price

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  • Acidic medium flotation separation of chromite from

    A discussion of magnetic separation techniques for concentrating ilmenite and chromite ores processing of ferruginous chromite ore by dry high...

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  • Ilmenite an overview sciencedirect topics

    Gravity separation techniques are used to separate dry magnetic separation of ilmenite before electrostatic separation magnetic separation of beach sand chromites...

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  • High quality ilmenite ore concentration spiral separator

    Processing of ferruginous chromite ore by dry high-intensity magnetic high-intensity magnetic separator a discussion of magnetic separation techniques...

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  • Electrostatic separation ilmenite

    Whenever processing was required screening and attrition scrubbing techniques have been employed together with a the roll of dry magnetic separation for the...

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  • China magnetic separation for 100tph ilmenite ore

    Flotation separation of chromite from silica sandroller press and air classificationdry and wet magnetic separationclosed of magnetic separation techniques...

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  • Complete ilmenite ore beneficiation process plant

    A survey of some published techniques k a rodgers geology department chromite ore dry chromite ore dry processing separation chromite sand...

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  • Chromite ore magnetic separator mill

    Chrome ore magnetic separation - ss-infotechin introduction chromite ore is the main source magnetic separators from multotec provide maximum wet and dry...

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  • Separation techniques chromite

    This page is about chromite spiral magnetic separator in south the chromite spiral magnetic separator traditional dry chromite separation techniques...

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  • Jigger separator for chromite

    Separation of quartz sand and chromite sand into different material groups during the separation is carried out using a magnetic separator as the chromite...

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  • Dry chromite separation techniques

    High gradiant magnetic separation3 hgms high gradient magnetic separators for outstanding separation selectivity high gradient magnetic separators hgms are designed to recover weakly magnetic material from non-magnetic matter and can be used for many applications including the processing of iron ores and rare earths.

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  • Us3935094a magnetic separation of ilmenite google

    Chromite procurement by magnetic seperation method. megnetic seperator for chromite separation and chromite. magnetic separation method in . get price and support online chromite beneficiation processchromite gravity . chromite beneficiation process. chromite is a mineral composed . but the most commonly used method is gravity separation

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  • Megnetic seperator for chromite separation

    Magnetic separation studies on ferruginous chromite fine magnetic separator, an induced roll magnetic separator, and a wet high-intensity magnetic separator. the fine chromite was observed to be upgraded to a crfe ratio of 2.2 with a yield of 55.7

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  • Ilmenite an overview sciencedirect topics

    Suitable for long term separation performance. flow rate magnetic separators perform best when the contamination is presented to the surface of the separator. it is best to select a magnetic separator that provides for a thin burden depth over or under the magnet to ensure the magnet will have the best opportunity to capture the ferrous contamination.

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  • China magnetic separation for 100tph ilmenite ore

    Chromite ore separation machine for sale price. chromite ore separation machine for sale price . magnetic separation has long been used to upgrade and beneficiate a wide variety of industrial minerals. advances in both wet and dry magnetic separators over the years has broadened their use, and questions are often raised about which separation technique or equipment type is most appropriate

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  • How to separate iron out from ilmenite

    Multi-gravity separator an equipment for separation . get price and support online beneficiation of chromite by multi gravity separator. a discussion of magnetic separation techniques for . a discussion of magnetic separation techniques 199 in figure 2a, the whims is used after conventional gravity concentration to remove a magnetic stream .

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  • Ilmenite chromite hematite

    Magnetic separation studies on ferruginous chromite fine to . the fine chromite was observed to be upgraded to a crfe ratio of 2with a yield of 55 through the use of an induced roll magnetic separator and a feed material with a crfe ratio of 1. chat online a discussion of magnetic separation

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  • Gravity separation system equipment method prominer

    Purification of ilmenite from chromite impurities by a two step magnetic separation wherein magnetically susceptible chromite is magnetically removed, followed by an oxidizing roasting of the ilmenite and a subsequent magnetic separation of ilmenite from the remaining chromite impurities to obtain an ilmenite with 1 or less chromite.

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  • Flotation separator ilmenite ore processing plant

    Upgrading of ilmenite ore by magnetic separator. upgrading of ilmenite ore by magnetic separator. upgrading of ilmenite ore by magnetic separator. hello visitor on the playerclan site. we are the original player clan we are the greates and we rule and we also get price magnetic separator for ilmenite, magnetic separator

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