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SELL DIATOMITE MINE ROMANIA

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  • Daniel Dumitru
    BEST REGARDS, DUMITRU DANIEL GENERAL MANAGER COMPANY-ROMEXPORT ROMANIA LOCATION-BUCHAREST ROMANIA MOBILE PHONE- +40733591139 WEBSITE -
    Message 1 of 1 , Feb 26 4:42 AM
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      BEST REGARDS,
      DUMITRU DANIEL
      GENERAL MANAGER
      COMPANY-ROMEXPORT ROMANIA
      LOCATION-BUCHAREST ROMANIA
      MOBILE PHONE-  +40733591139
      ROMEXPORT ROMANIA
      DUMITRU DANIEL
      GENERAL MANAGER
      A. DIATOMITE MINE(QUARRY) – is situated 7 km far from the industrial platform 
      - total surface of the diatomite mine – 34 hectares (340000 m2) 
      Mine(quarry) endowments : 
      • Electricity transformer station;
      • Ammo warehouse - authorised;
      • Access road 1,8 km;
      • Electrical rock crystal machine;
      • Loading machine WOLLA L34 type.

      The exploitation license is for 20 years + with extension possibility to 5 years, released by the National Agency for Mineral Resources in September 2008.
      Calculated reserves, according to a geological study, which was fundamental in the releasing process of the diatomite exploitation license, are the following :
      1. Ashen bedrock C1 category 123.143 cubic meters B category - 
      2.Ashen brecies C1 category 177.837 cubic meters B category 37.250 cubic meters
      3.Clean diatomite C1 category 1.413.617 cubic meters B category 1.777.724 cubic meters
      4.Impure diatomite C1 category 1.419.014 cubic meters B category 759.281 cubic meters
      5.Ruby diatomite C1 category 396.850 cubic meters B category 161.738 cubic meters
      6.Menilite C1 category 140.978 cubic meters B category 105.409 cubic meters
      7.Disolitic schists C1 category 543.845 cubic meters B category 185.148 cubic meters
      Total reserve of DIATOMITE (useful)
      B category 2.698.743 cubic meters
      C1 category 2.959.481 cubic meters
      Specific weight 0,94 – 1,1 to / cubic meter

      Sterile reserve
      B category 473.216 cubic meters
      C1 category 1.186.436 cubic meters

      B category reserves have been evaluated between the exploitation works and the openings from the mine (quarry) degree.
      C category reserves have been evaluated on the basis of different researches, through limited exploitation from B reserves and filing (mapping) data which give very detailed information of the diatomite ore.
      For reserves calculation it has been used the method of parallel vertical sections.
      According to the international classification for the mineral resources and reserves – here are the quantity in thousand tons:

      Identified evaluated resources:
      - Measured resources (331) = 2838
      - Indicated resources ( 332) = 3255

      According to the conlusions of the development plan and of the feasibility study, the following quantities of resources and reserves are registered:
      - Found resources (111) = 1077
      - Measured resources (331) = 1680
      - Indicated resources (332) = 3255

      To transform the measured reserves into found resources it is used the transformation coefficient k=0,93.
      The mineral resources / reserves have been calculated only on the diatomite mine outline. 



      THE CHARACTERISTICS OF DIATOMITE FROM THE PERIMETER


      As mentioned in the ore geology (see mine sketch), within the diatomite mine in Burduşoaia it has been accomplished, after a detailed filing (mapping), based as well on lab data, a certain classification, which will determine the reserves calculation. From the outside part to the kernel(nucleus) formation can be found the following areas :

      1.Grey bedrock area with bitumen smell (appears only in the south east zone).
      2.Area of brecies, grey and Oligocen-Miocene elements 
      3.Area with impure diatomite.
      4.Area of white or light yellow and clean diatomite.
      5.Area of impure diatomite with organical substance.
      6.Area of ruby diatomite composed of the alternation between white and impure diatomite.
      7.Area de menilites in layers of the outside part of the mine(quarry).
      8.Area cu different schists 



      Mecanical and physical determination:

      - Rock medium density 2:20 gram / cubic centimeter
      - Apparent density of medium rock 1 gram / cubic centimeter
      - Apparent density in pile 0.55 gram / cubic centimeter
      - Density in pressed status 0.78 gram / cubic centimeter
      - PH- aqueous solution 6 %
      - Compression property 47 %
      - Water absorption – at normal temperature and pressure 33 %
      - at boiling 31 %
      - Saturation coefficient 1,06
      - Coefficient of freezing at 8 cycles – 100 %
      - Softening coefficient after water saturation – 38 %
      - Compressing resistance – dry – 105 daN / square centimeter
      - saturated- 64 daN / square centimeter
      - Resistance to mechanical shock – 0,3 – 0,4 N / mm / mmc
      - Wearing out through friction 0,6g / square centimeter
      - Whiteness scale 35,6 %
      - Thermal conductivity 0,12 W / mk
      - Piroscopic index 156
      - Water absorption capacity – 1 day 0,1078 %
      - 15 days 0,75 %
      - Humidity, after natural drying in warehouse 3,2 – 3,4 %
      - 1160 Celsius degrees – start of softening process
      - 1560 Celsius degrees – melting proces

      CHEMICAL COMPOSITION IN RAW STATUS
      The diatomite , in raw status, presents chemicals characteristics presented in chart no.1
      CHART NO.1
      CHEMICAL CONTENTS
      COMPONENTS SAMPLE 1 SAMPLE 2 AVERAGE
      SiO2 79,23 81,16 80,2
      Al2O3 6,34 4,36 5,35
      Fe2O3 2,16 1,98 2,02
      CaO 1,13 1,39 1,26
      MgO 0,71 0,29 0,5
      Na2O 0,3 0,34 0,32
      K2O 0,73 0,76 0,75
      TiO2 0,26 0,19 0,22
      St 0,71 0,55 0,68
      Soluble salts. - - -
      Carbonates 0,26 0,29 0,29
      Nu urme urme urme
      Grey subtances 3 4,5 3,75
      Insoluble In HCl 94 92 93
      P.C. 9,75 9,35 9,55

      GRANULE ANALYSIS
      The diatomite in Pătârlagele crushed in a special machine, presents in average the folowing granule composition :
      CHART NO.2
      CLASS (mm) REFUSALS % CUMULUS 
      REFUSALS %
      30 0,2 0,2
      30 - 20 2,8 3
      20 – 10 22,3 25,3
      10 – 5 17,3 42,6
      5 – 3 7,5 50,1
      3 – 2 15,3 55,4
      2 – 1 14,3 79,7
      1 – 0 20,3 100

      The diatomite exploited by our company is formed of the following: silicon dioxide – 80.20%, Al2O3 – 5.35%, Fe2O3 – 2.02%, CaO – 1.26%, loam substances – 3.75%, insoluble in HCl - 93% and PC is 9.55.
      RX Chart
      • Quartz 10-15%
      • Opal 60-70%
      • Mica 5%
      • Feldspar 5%
      • Cristobalit 10-15%
      As physical and mechanical properties, the diatomite has:
      • Medium density – 2.2 g / cm3;
      • Compact – 47%;
      • Porosity – 52.2%;
      • Water absorption – 33%;
      • Compression resistance – 105 daN / cm2;
      • Thermal conductivity – 0.12 W / mK;
      • Whiteness degree – 35.6%;
      • Piroscopic index in natural status - 156;
      • Roasting (calcination) time – 2 hours;
      • Roasting (calcination)temperature – 9000 C;

      After roasting (calcination), the diatomite chemical composition is the following:
      • SiO2 – 88.44%;
      • Al2O3 – 4.75%;
      • Fe2O3 – 2.39%;
      • CaO – 1.70%;
      • SO3 – 1.42%;
      • Carbonates – 0.30%;
      • PC – 1.00%.

      The mechanical and physical properties by medium values are:
      • Bulk density– 357 g / dm3 , and in settlement status – 425 g / dm3;
      • PH solution – 7;
      • Specific surface – 11.357 m2 / g;
      • Hygroscopicity after 1 day - 0,05%
      • Chemical not treated color – pink;
      • Chemical treated color (NaCl) – white.

      The utilization field for diatomite are:
      a) In natural status:
      Raw material for refractory brick;
      Thermo-insulated material into construction materials;
      Layer for grinded pastes;

      b) In calcinated status:
      Filter material;
      Insulating material;

      The calculated reserves of diatomite are approx. 5699 millions tons.


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