1. Alkalinity: The product is an alkaline inorganic compound. It is a stabilizer for this product using lime, caustic soda (more lime, less caustic soda), and the PH value of the heap (slurry) is 11 ± 1 . After the ore heap or into the pool, back to (a) adjusting the alkalinity PH value of water 11 ± (pH paper with a precision of 9.5 - 13 detection) 1.
2 , the amount of medication: the amount of medication is about 10.0 to 20.0 parts per million ( 1000 ~ 2000 grams of medicine / ton of ore), the nature, grade, pH of the ore will affect the amount of medication. The actual dosage can be calculated according to the concentration of the syrup.
3 , dosing method: at room temperature, the block drug can be used after being fully dissolved with water (usually it will accelerate the dissolution in flowing water or after sufficient agitation; when the heap is drenched, the drug pool can be built in the poor liquid pool to make the charcoal After the return water directly flushes the gold deposit agent into the poor liquid pool).
Before the first dosing, the alkalinity is adjusted to 10 or more. When the water in the pool is low, the alkali and the medicine are simultaneously added. Two kinds of shower buckets can be used to separate the lime (or caustic soda) and the gold-selecting agent into the medicine pool (lean pool) or into the medicine pool to ensure uniform concentration of the medicament in the pool. If it is a heap leaching process, dosing and spraying can be carried out simultaneously.
Initial: Control the concentration of the syrup mass to 1 ‰ (that is, the ratio of medicine to water is 1:1000 , that is, 1 kg of medicine plus 1 cubic metre of water), and the time is 7-10 days.
Medium term: The concentration of the controlled syrup is about 0.5 , and the time is 20-30 days.
Later: Control the concentration of the syrup mass to about 0.3 ,, and the time until the end of adsorption.
4 , calculate the dispensing :
 1 dosage can refer to the use of cyanide - sodium - sodium. It is recommended to carry out the beneficiation test and refer to its optimal conditions (commonly about 1-2 kg / ton of oxidized ore, the concentration of syrup is generally maintained at 0.3-1.2 ‰ or the concentration of drug drops 0.075 ~ 0.3 ‰, adjusted according to different ore grades and harmful components);
2 Calculation method of dosing amount: replenishing amount = (optimal syrup mass concentration value - current measuring syrup mass concentration value) × dosage of drinking water; suppose the optimal syrup mass concentration value is 1.2 ‰ (by water quantity), returning syrup The mass concentration is 0.6 ‰, and the poor liquid pool is 500 square meters, then the amount of replenishment: ( 1.2 - 0.6 ) × 500 = 300 kg.
5. Drug concentration: Because the composition and pH of different ores are different, the concentration of the best drug ( ‰ ) should be calculated according to the optimum concentration of water in the sample ( ‰ ) (calculated as follows):
          The concentration of the syrup ( ‰ ) = the concentration of the drug ( ‰ ) × 4 ( 4 is the empirical value)
For example, if the ratio of the ratio of the syrup is 0.07 ‰, the concentration of the syrup ( ‰ ) = 0.07 ‰ × 4 = 0.28 ‰ ( ie the ratio of medicine to water is 0.28:1000)
The gold extraction agent is dispensed in the calculated proportion.
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