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Gypsum Total purity.pdf

Oct 30, 2015

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Testing and calculation of gypsum purity for cement production
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  • RatkovicP LCC Jan 2013 1/7

  • %100

    dds

    dSAdS

    mmmm

    %cw

    784.cwD %%

    OHCaSODDihydrate 24 2 %%%RatkovicP LCC Jan 2013 2/7

  • Lcw %% 784.cwD %%

    OHCaSODDihydrate 24 2 %%%

    RatkovicP LCC Jan 2013 3/7

  • 3SO% 1.7 L%Purity Total

    RatkovicP LCC Jan 2013 4/7

  • 22236

    803 .cwcwSO

    D %%%

    78436

    172.cwcwD %%%

    70180

    13633 .%%%

    AA SOSOA

    XRFSOcw)tal purity%Gypsym(To 3701 %.%

    1523 .% XRFSO)tal purity%Gypsym(To

    1523 . %SO%D XRF

    Examples: Input data Calculated data

    Heating XRF %D %A Total Purity(%)

    %cw %SO3XRF %SO3D %SO3A

    18.0 47.0 40.0 86.0 7.0 12.0 98.0 18.0 40.0 40.0 86.0 0.0 0.0 86.0 20.9 46.5 46.5 100.0 0.0 0.0 100.0

    Error examples:

    18.0 ? 35.0 ? 35.0

  • 22236

    803 .cwcwSO

    D %%%

    78436

    172.cwcwD %%%

    70180

    13633 .%%%

    AA SOSOA

    XRFSOcw)tal purity%Gypsym(To 3701 %.% 1523 .%

    XRFSO)tal purity%Gypsym(To

    1523 . %SO%D XRF

    DXRFA SOSOSO 333 %%%

    Examples: Input data Calculated data

    Heating 230C XRF Dehydrate Anhydrite

    Total Purity(%)

    %cw %SO3XRF %SO3

    D %D %SO3A %A %Gypsum

    18.0 47.0 40.0 86.0 7.0 12.0 98.0 18.0 40.0 40.0 86.0 0.0 0.0 86.0 20.9 46.5 46.5 100.0 0.0 0.0 100.0

    Error examples:

    18.0 ? 35.0 ? 35.0

  • Example: A B %G

    (%gypsum total purity) %cw * %SO3 XRF **

    18 44 92.8 ***

    *% crystal water ** XRF analysis of %SO3 (EQUAOXIDES) ****Formula % G =IF(OR((A*2.22)>B+0.05,A>20.93,(A+1.7*B)>100.05),IF((A+1.7*B)>100.05,"Error XRF SO3","Error, not enough dry sample"),A+1.7*B)

    RatkovicP LCC Jan 2013 7/7