Sulfur analyzer features - Huaqiang Electronic Network

Sulfur analyzer

The sulfur analyzer can quickly and accurately detect metals (such as steel, iron, etc.) and non-metallic materials (such as ore, slag, cement and clinker, etc.)

SO3

Or the total sulfur mass fraction.

Sulfur analyzers are reliable

MCS-51

The series of single-chip microcomputers complete the program control and analog titration analysis; the anti-corrosion electromagnetic valve is selected as the on-off switch of the gas path and the liquid path; the operation is simple and reasonable. The instrument is used in conjunction with a high-speed automatic ignition furnace. When measuring metal materials, it can also be matched with a tube furnace. The instrument can be used alone or in combination with the gas volume method to measure carbon and sulfur, and can be combined with non-aqueous method for measuring carbon and sulfur. Instrument analysis time

65-75s

Adjustable. Analysis error: cement meets

GB176-87

and

JBW

Allowable difference; steel meets

GB223.2-89

Provisional allowable difference; iron ore meets

GB6730.16

~

17-86

The allowable difference is specified.

Determination of sulfur chemical reaction by iodometric method

The sample is oxidized by oxygen at a high temperature, and sulfur is oxidized into

SO

2

After being absorbed by the acidic starch solution, it is generated

H

2

SO

3

Titrate with potassium iodate standard solution to light blue as the end point.

KIO

3

+5KI+6HCl+3H

2

SO

3

=3H

2

SO

4

+6KCl+6HI

↑

ω(S)=TV/G×100%

ω

(S)

- the mass fraction of sulfur,

%

;

T

- the titer of sulfur in the standard solution of potassium iodate;

V

- consumption of potassium iodate standard solution volume,

mL

;

G

- sample weight.

Sulfur titration solution

(

1

), starch solution. Weigh

4g

Starch, tune into a paste with a small amount of water, then add a fine stream to the constantly stirring

500mL

Continue boiling in boiling water

5min

, remove the cooling, add water to the

500mL

, adding hydrochloric acid

50mL

Shake well.

(

2

),

KIO

3

standard solution(

Cl/6KIO

3

=0.05mol/L

).

(

3

),

KIO

3

standard solution(

Cl/6KIO

3

=0.0025mol/L

). draw(

2

)

KIO

3

standard solution

50mL

, join

1000mL

In starch solution, plus

1.5g

Potentiate potassium iodide and shake well (low sulfur titration solution).

(

4

)

KIO

3

standard solution(

Cl/6KIO

3

=0.005mol/L)

. draw(

2

)

KIO

3

standard solution

100mL

, join

1000mL

In starch solution, plus

3g

Potentiate potassium iodide and shake well (high sulfur titration solution).

The sulfur analyzer adopts the technology of many disciplines such as computer, analytical chemistry and thermodynamics. It is a technology-intensive product, which has a significant effect on improving the quality of steel, cement and other products, saving energy and reducing labor intensity.