Product：

DL301-II Resin-specific adsorption of gold

Introduction：

The weak alkaline, acidic near neutral medium in the effective exchange of inorganic acid and silicate, and to a larger size impurities adsorbed molecules and the use of non-aqueous solution. Resin with high efficiency of the regeneration, Exchange capacity large, anti-pollution ability, mechanical strength, good benefits, this product is mainly used for hydrometallurgy, pulp instead of activated carbon from cyanide to extract gold.

Physicochemical property indicators：

Indicator

Parameter

Implement stnadard：

Q/DL013-2008

Functional group

-N+(CH3) 2H2O

Appearance ：

Milky white opaque sphere

Finished form ：

CLˉ

Moisture content % ：

45-55

Weight whole exchange capacity mmol/g ：

≥5.0

Volume whole exchange capacity mmol/ml ：

≥1.50

Wet density g/ml ：

1.05-1.1

Wet real density g/ml ：

0.68-0.75

Particle size range % ：

(0.6-1.80mm)≥95%

下线Granularity ：

（<0.6mm）≤1.0

Uniformity coefficient ：

1.5

Sphere rate after abrasion %：

≥95%

Reference of indicator：

Indicator

Parameter

Regeneration concentration

HCl：2-4%；   NaOH：2-4%

pH range

1-10

Highest use temperature℃

OH- 100    Cl- 40

Expansion rate (OHˉ→Clˉ)%

≤15-20%

Operational flow speed m/h

10-30

Desorption ：

Resin adsorption of gold thiourea with 9% + 3% sulfuric acid analysis, analytical dosage of 6-8 times the bed volume, contact time with Resin for 2h or more.

Regeneration process :

Resin after resolution after washing, rinse with 2-3 times the bed volumeNaOH, about 1 hour, then rinse renewable HCl solution, the dosage is 2 times the bed volume, time is about 1.5h, washed clean and odor can be the last. (Regeneration concentration reference Reference of indicator)