Stock Code: 833291


Instructions of JINCHAN® Environment-friendly Gold Dressing Agent


JINCHAN® Environment-friendly Gold Dressing Agent is a new high-tech product which is created by Senhe High technology and used in gold beneficiation as the substitute for sodium cyanide. At present, JINCHAN® Environment-friendly Gold Dressing Agents the only patented product for“environmentally friendly gold extraction” around the world.

The product, used in gold production directly as the substitute for sodium cyanide without changing original process and equipment enjoys advantages such as low toxicity, environmental protection, high recovery, good stability, convenient operation, quick recycle, low dosage,low cost and convenient storage and transportation.


Relevant Qualification Certificates and Reports of the Product

Item Name

Certificate No.


Patent No.



The patent certificate has been obtained.

Trademark registration No.

No. 9403301

The trademark registration certificate has been obtained.

Executive standard No.

Q/SHKY 01-2014

It has been filed in Guangxi Quality Supervision Bureau.

Export commodity code


The pre-classified decision letter for Chinese customs commodities has been obtained.

Identification of scientific and technical achievements

Gui. Ke. Jian. Zi. No. 2012307

The identification certificate of Guangxi Technology Department has been obtained.

Identification of product toxicity

No. 20120027

Guangxi Disease Prevention and Control Center

Identification of goods risk

No. 2011091311

Shanghai Dangerous Chemical Classification Detection Center for National Safety Production

Identification of goods transport conditions

No. 2011091307

Testing Center of Shanghai Chemical Research Institute

I Use Introductions of JINCHAN

1.     Application Scope of JINCHAN

①  Applicable ore types: golden and silver oxidized ore, primary ore, high-sulfur and high-arsenic gold ore, cyanidation slag, gold concentrate, pyrite cinder and anode mud etc;

②  Applicable beneficiation process: dump  leaching, pool leaching and carbon pulp (agitation leach) etc.

2.     JINCHAN Product Form: Granular or powder form

3.     JINCHAN Dissolution Method: it can be used after being fully dissolved by water under normal temperature (in general, the dissolution can be accelerated in flowing water or through full stirring; dosing pool can be built near to the barren solution pool in heap leaching process in order to let backwater which has passed carbon directly wash JINCHAN and dissolve it into barren solution pool);

4.     Alkalinity Adjustment: in general, adjustment is carried out with lime or caustic soda with stable pH value between 11-12; when the pH value of backwater decreases,alkalinity shall be timely adjusted; when the pH value is too high (more than 12) for a very long time, alkalinity will be generated and affect the activated carbon adsorption or the liquid passivation will occur and affect the leaching effect);

5.     Dosage Calculation

①  The dosage of JINCHAN can refer to the dosage of sodium cyanide. It is recommended to carry out beneficiation test and refer to its optimum conditions; (1-2 g/t gold oxidized ore is common and the JINCHAN concentration is generally maintained between 0.3-0.8 ‰. Make proper adjustment in accordance with different ore grades and harmful component);

②  Calculation method of dosage: Added dosage of JINCHAN=(optimum concentration value-measured concentration value)×water volume in dosing pool; assuming that the optimum concentration value of JINCHAN is 1.5 ‰ (calculated as per water volume), the backwater JINCHAN concentration is 0.6 ‰ and barren solution pool has water of 500 cubic meters, then the added dosage of JINCHAN is (1.5-0.6)×500=450 kilograms.

6.    Product Use Flow: (in accordance with dump leaching and carbon leaching process with the use of sodium cyanide)

①  Process of heap leaching and pool leaching: raw ore crushing, entering pump/pool,leaching, activated carbon adsorption (zinc dust replacement),  resolution electrodeposition and smelting;

②  Carbon pulp process (agitation leach): raw ore crushing, ore grinding, carbon leaching, electrolysis and smelting;

7.     Other Matters

①  It is recommended to used special golden coconut shell absorption carbon or zinc dust as the auxiliary absorption agent(special activated carbon special for carbon pulp gold extraction is used in the CIP process);

②  The best effect will be obtained when JINCHAN is used at the temperature of more than 15℃;

③  The gold leaching speed is relatively big, soit is recommended to detect pregnant solution grade, pH value and JINCHAN concentration at regular time;

④  It is not recommended to put in strongoxidizers such as hydrogen peroxide and potassium permanganate together with JINCHAN(pre-treatment can be made);

⑤  The use of ammonia water, sodium sulfide, potassium ferricyanide,lead nitrate and sodium hypochlorite as well as other subsidiary medicines in complex ore pre-treatment does not reject JINCHAN gold leaching;

⑥  A little of black slag generated after dissolution of JINCHAN will not affect the leaching effect;

⑦  JINCHAN and sodium cyanide will not reject each other when being used at the same time;

⑧  Gold leaching by CIP (carbon-in-plup) process and the “rich-oxygen leaching” have bad impact on JINCHAN.

II Detection Method of JINCHAN Concentration (Titration)

1.      Necessary Instruments: one 50 ml conical flask, two 10 ml pipettes and 1 red head dropper;

2.      Reagent preparation: (reagents shall be stored in brown glass bottles to avoid heat and light);

①  Indicator: put a whole bottle of reagent(sample A) into 500 ml acetone solution. Stir them until they are totally dissolved and set them aside;

②  Testing reagent: put a whole bottle of reagent (sample B) into 1,000 ml distilled water. Stir them until they are totally dissolved and set them aside.

3.      Operation Steps:

①  Put 10 ml solution to be tested into a 50 ml conical flask and drop 5 drops of indicator into the bottle and shake it up (yellow);

②  Intake 10 ml detection reagent with pipette to implement titration; shale the bottle up while dropping during the titration. At the same time, observe the color change in liquid. The pink color refers to the end point. Read the consumption of detection reagent which has been used (namely ml);

③  Conversion results: JINCHAN Concentration= consumed detection reagent as (ml)÷2 × ‰                    

III Emission and Treatment of Waste Residue and Waste Water: ore waste residue and waste water after production have relatively high alkalinity. It is possible to add a little of calcium chlorate (bleaching powder) and ferrous sulfate for treatment, then discharge and stack them in special tailing facilities.

IV Product Transportation and Storage:

1.   After JINCHAN is detected by “Shanghai Dangerous Chemical Classification Detection Center for National Safety Production” and “Testing Center of Shanghai Chemical Research Institute” and after identification letters at state level are issued, this product has to be identified to be ordinary goods without explosion risk or oxidizer risk. The products should be guaranteed that it is not flammable dangerous goods, poisonous goods in Article 6.1, radioactive dangerous goods or corrosive etc and can be safely transported through highway,railway, shipping and air transportation;

2.      It is supposed to abide by national relevant transportation and storage system ;

3.     The product has hygroscopicity and shall be tightly sealed and stored in shady,cool and dry place. Pay attention to guard against damp and moist; humans and livestock shall be avoided from directly take it orally or absorb it;

4.      It is prohibited to mix it with acid chemicals and edible chemicals.

Please read this instruction carefully and feel free to call and write for consultation. Our company has the final power of interpretation!


Guangxi Senhe High Technology Co., Ltd.