CN105734281A - Environment-friendly compound precious metal leaching agent and preparation method thereof - Google Patents

Environment-friendly compound precious metal leaching agent and preparation method thereof Download PDF

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CN105734281A
CN105734281A CN201410750533.1A CN201410750533A CN105734281A CN 105734281 A CN105734281 A CN 105734281A CN 201410750533 A CN201410750533 A CN 201410750533A CN 105734281 A CN105734281 A CN 105734281A
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parts
humic acid
nitrated
leaching agent
environment
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CN105734281B (en
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宋翔宇
王林山
翟晓辰
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Henan Green Gold Mining Technology Co Ltd
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Henan Green Gold Mining Technology Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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Abstract

Disclosed are an environment-friendly compound precious metal leaching agent and a preparation method thereof. An oxidizing agent A, modification humate B and amino acid C are mixed according to the weight ratio of 1:1-5:1-5. Meanwhile, the invention discloses an application method for the leaching agent. The preparation method comprises the following steps that (1) raw ore is ground through a ball grinding mill first, and grinding is conducted until the granularity of 90% of crushed ore is 74 [mu]m or smaller; (2) the concentration of ore pulp is adjusted by water to reach 15%-70%; (3) the pH value of the ore pulp is adjusted by lime or caustic soda or sodium carbonate to be larger than 10; (4) 100-5000 g of the leaching agent of the claim 2 is added to per ton of ore or ore powder; (5) air inflation, stirring and leaching are conducted, and the leaching time is 10-48 hours; and (6) zinc dust precipitation or activated carbon adsorption or ion exchange resin is adopted for recovering gold and silver. The environment-friendly compound precious metal leaching agent and the preparation method thereof can be widely applied to production of precious metal mines. The leaching agent is free of poison or pollution and has the characteristics that the effect is good, the chemical property is stable, the product is environmentally friendly, the production method is simple, and the cost is low compared with all other non-poisonous or low-poison beneficiation reagents.

Description

A kind of environment-friendly type composite noble metal leaching agent and preparation method thereof
Technical field
The invention belongs to technical field of beneficiation, be specifically related to a kind of environment-friendly type noble metal leaching agent and preparation method thereof.
Background technology
Gold Ore can be greatly classified into sulphide ore and the big class of oxide ore two from mineral composition.In gold mine production technology, sulphide ore is mainly adopted " flotation+gold concentrate roasting+cyanidation gold-extracted " technique；And for oxide ore, apply and maximum be exactly all sliming cyanidation or heap drenches technique.Certainly, numerous at present gold mines is all using hypertoxic Cyanogran. as leaching gold agent.According to statistics, China's Sodium Cyanide Production ability alreadys more than Australia and the U.S., becomes the first big producing country in the world.China's Cyanogran. total productive capacity about 500,000 t/a in 2013 (folding 100%), wherein accounts for 20% for gold mine, and in other words, the cyanidation gold-extracted Cyanogran. of China's gold mine reaches more than 100,000 tons.Some import Cyanogran. is not included in.
Owing to the hypertoxic cyanide of enormous amount is applied at gold mine, whole nation gold mine every year because of misoperation, eat by mistake, breathe people and animals that the reason such as poisoning causes dead example countless, cause the example that lithic drainage pollutes also too numerous to enumerate containing severe toxicity cyanide mine tailing seepage, additionally, cyanide is from buying transport, arrive all too many levels such as storage application again, be all subject to strict monitoring and the control of public security department, cause practical application cost to increase a lot.Therefore, gold mine enterprise replaces severe toxicity Cyanogran. without without wishing to application nontoxic gold extracting agent, puies forward the problems of gold ribbon solving the hypertoxic Cyanogran. of application.
Cyanogran. owing to using in Cyanide Process is Poisons, so, non-cyanide gold-leaching reagents has been carried out substantial amounts of research by each pan state of the world, and the non-cyanogen medicament reported has more than ten to plant.The research that non-cyanogen carries gold at present can be divided mainly into two big classes: 1. carries gold in acid medium, 2. in alkaline medium, gold is carried, such as polysulfide method, thiosulfate technique, lime sulfur method etc. such as By Thiourea-uv Method, water chlorination process, bromination method, iodide process, rhodanate method etc..These methods above-mentioned are respectively provided with nontoxic or toxicity is less than cyanide, leaching velocity is fast and to advantages such as the strong adaptabilities of impurity, but these methods all also existence reagent consumption amount in various degree is big, produce in difficult control, the shortcoming such as production cost is high, some technique still has relatively high toxicity, it need perfect further, especially to strengthen commerical test research, accelerate process of industrialization.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides one can replace severe toxicity cyanide, has leaching velocity fast, and leaching rate is high, cost is low, the noble metal leaching agent of stable production process and preparation method thereof.
The purpose of the present invention is achieved through the following technical solutions:
A kind of environment-friendly type composite noble metal leaching agent, described leaching agent is made up of oxidant A, modified humic acid salt B, aminoacid C.Oxidant A: modified humic acid salt B: the weight ratio of aminoacid C is 1:1-5:1-5.
Described oxidant A is CaO2、Na2S2O8、K2S2O8、(NH4)2S2O8、2Na2CO3·3H2O2In one or more.
Described oxidant A is CaO2Or K2S2O8。
Described modified humic acid salt B is one or more in sulfonated humic acid sodium, nitrated sodium humate, sulfonated humic acid ammonium, nitrated ammonium humate, sulfonated humic acid, nitrated humic acids.
Described modified humic acid salt B is sulfonated humic acid ammonium or sulfonated humic acid.
Described aminoacid C is one or more in glycine, histidine, cysteine, winter propylhomoserin, aminoacetic acid, phenylalanine.
Described aminoacid C is cysteine or phenylalanine.
A kind of preparation method of environment-friendly type composite noble metal leaching agent, described leaching agent is made up of oxidant A, modified humic acid salt B, aminoacid C, oxidant A: modified humic acid salt B: the weight ratio of aminoacid C is 1:1-5:1-5, and its preparation method comprises the following steps:
(1) first raw ore is ground by ball mill, be milled to the granularity of 90% muck less than 74 μm；
(2) water use regulation pulp density reaches 15-70%；
(3) slurry pH is regulated with Calx or Caustic soda or soda so that pH values of pulp > 10；
(4) Ore per ton or breeze add the leaching agent 100～5000 grams described in claim 2；
(5) inflation, stirring, leaching, extraction time is 10-48 hour；
(6) zinc dust precipitation or activated carbon adsorption or ion exchange resin is adopted to reclaim gold, silver.
In described step (2), water use regulation pulp density reaches 35-45%.
The invention has the beneficial effects as follows:
1, definitely green non-poisonous, alternative severe toxicity Cyanogran. is widely used in the production in noble metal mine, for instance: the drill traverse in the ore deposits such as gold mine, silver ore and platinum palladium, heap pouring, pond leaching etc..
2, leaching velocity is fast, leaching rate is high, high-low temperature resistant.
3, product processes is simple, stable performance, medicine environmental protection, less costly.
Detailed description of the invention
Embodiment 1
The preparation method of a kind of environment-friendly type composite noble metal leaching agent, comprises the following steps:
(1) CaO is taken210 parts, K2S2O810 parts, sulfonated humic acid ammonium 30 parts and cysteine 30 parts, mix in vortex mixer, prepares leaching agent；
(2) first raw ore (containing gold 1.95g/t, sulfur grade 1.64%) is ground by ball mill, be milled to the granularity of 90% muck less than 74 μm；
(3) water use regulation pulp density reaches 40%；
(4) slurry pH is regulated with Calx or Caustic soda or soda so that pH values of pulp is 11；
(5) Ore per ton or breeze add the leaching agent 2500 grams described in step (1)；
(6) inflation, stirring, leaching, extraction time is 24 hours；
(7) zinc dust precipitation or activated carbon adsorption or ion exchange resin is adopted to reclaim gold, silver.
(8) sample analysis leaching slag gold grade, show that leaching slag gold grade is 0.28g/t, and leaching rate is 85.64%.
Embodiment 2
The preparation method of a kind of environment-friendly type composite noble metal leaching agent, comprises the following steps:
(1) CaO is taken210 parts, K2S2O810 parts, sulfonated humic acid ammonium 40 parts and cysteine 40 parts, mix in vortex mixer, prepares leaching agent；
(2) first raw ore (containing gold 6.46g/t, silver 124.6g/t, sulfur grade 2.38%) is ground by ball mill, be milled to the granularity of 90% muck less than 74 μm；
(3) water use regulation pulp density reaches 40%；
(4) slurry pH is regulated with Calx or Caustic soda or soda so that pH values of pulp is 12；
(5) Ore per ton or breeze add the leaching agent 2500 grams described in step (1)；
(6) inflation, stirring, leaching, extraction time is 24 hours；
(7) zinc dust precipitation or activated carbon adsorption or ion exchange resin is adopted to reclaim gold, silver.
(8) taste of sample analysis leaching slag gold and silver taste, show that leaching slag gold grade is 0.53g/t, and silver grade is 31.62g/t, gold
Leaching rate is 91.8%, silver leaching rate is 74.62%.
Embodiment 3
The preparation method of a kind of environment-friendly type composite noble metal leaching agent, comprises the following steps:
(1) CaO is taken210 parts, (NH4)2S2O810 parts, 50 parts of sulfonated humic acid sodium and phenylalanine 50 parts, mix in vortex mixer, prepares leaching agent；
(2) first raw ore (containing gold 4.61g/t, sulfur grade 0.38g/t, arsenic grade 0.45%) is ground by ball mill, be milled to the granularity of 90% muck less than 74 μm；
(3) water use regulation pulp density reaches 40%；
(4) slurry pH is regulated with Calx or Caustic soda or soda so that pH values of pulp is 12；
(5) Ore per ton or breeze add the leaching agent 2000 grams described in step (1)；
(6) inflation, stirring, leaching, extraction time is 24 hours；
(7) zinc dust precipitation or activated carbon adsorption or ion exchange resin is adopted to reclaim gold, silver.
(8) sample analysis leaching slag gold grade and silver grade, show that leaching slag gold grade is 0.47g/t, and gold leaching rate is 89.81%.
Embodiment 4
The preparation method of a kind of environment-friendly type composite noble metal leaching agent, comprises the following steps:
(1) CaO is taken210 parts, (NH4)2S2O810 parts, sulfonated humic acid ammonium 60 parts and cysteine 40 parts, mix in vortex mixer, prepares leaching agent；
(2) first raw ore (containing gold 1.69g/t, sulfur grade 0.21g/t, arsenic grade 0.05%) is ground by ball mill, be milled to the granularity of 90% muck less than 5mm, load in post bath unit；
(3) water use regulation pulp density reaches 40%；
(4) slurry pH is regulated with Calx or Caustic soda or soda so that pH values of pulp is 12；
(5) Ore per ton or breeze add the leaching agent 1850 grams described in step (1), and leaching agent is configured to the solution of 1 ‰ concentration；
(6) Ore in circulated sprinkling post, the shower-bubble type time is 25 days；
(7) zinc dust precipitation or activated carbon adsorption or ion exchange resin is adopted to reclaim gold, silver.
(8) sample analysis leaching slag gold grade and silver grade, show that leaching slag gold grade is 0.36g/t, and gold leaching rate is 78.70%.
Embodiment 5
The preparation method of a kind of environment-friendly type composite noble metal leaching agent, comprises the following steps:
(1) Na is taken2S2O810 parts, 2Na2CO3·3H2O210 parts, nitrated ammonium humate 10 parts, nitrated sodium humate 10 parts, histidine 10 parts and glycine 10 parts, mix in vortex mixer, prepares leaching agent；
(2) first raw ore (containing gold 7.21g/t, sulfur grade 4.06%) is ground by ball mill, be milled to the granularity of 90% muck less than 74 μm；
(3) water use regulation pulp density reaches 15%；
(4) slurry pH is regulated with Calx or Caustic soda or soda so that pH values of pulp is 11；
(5) Ore per ton or breeze add the leaching agent 100 grams described in step (1)；
(6) inflation, stirring, leaching, extraction time is 48 hours；
(7) zinc dust precipitation or activated carbon adsorption or ion exchange resin is adopted to reclaim gold, silver.
(8) taste of sample analysis leaching slag gold and silver grade, show that leaching slag gold grade is 0.88g/t, and gold leaching rate is 87.8%.
Embodiment 6
The preparation method of a kind of environment-friendly type composite noble metal leaching agent, comprises the following steps:
(1) K is taken2S2O810 parts, 2Na2CO3·3H2O210 parts, nitrated humic acids 50 parts, sulfonated humic acid 50 parts, winter propylhomoserin 50 parts and aminoacetic acid 50 parts, mix in vortex mixer, prepares leaching agent；
(2) first raw ore (containing gold 5.52g/t, sulfur grade 1.88%) is ground by ball mill, be milled to the granularity of 90% muck less than 74 μm；
(3) water use regulation pulp density reaches 70%；
(4) slurry pH is regulated with Calx or Caustic soda or soda so that pH values of pulp is 12；
(5) Ore per ton or breeze add the leaching agent 5000 grams described in step (1)；
(6) inflation, stirring, leaching, extraction time is 10 hours；
(7) zinc dust precipitation or activated carbon adsorption or ion exchange resin is adopted to reclaim gold, silver.
(8) taste of sample analysis leaching slag gold and silver grade, show that leaching slag gold grade is 0.83g/t, and gold leaching rate is 84.96%.
Embodiment 7
The preparation method of a kind of environment-friendly type composite noble metal leaching agent, comprises the following steps:
(1) K is taken2S2O810 parts, (NH4)2S2O810 parts, sulfonated humic acid ammonium 20 parts, sulfonated humic acid 20 parts, winter propylhomoserin 20 parts and phenylalanine 20 parts, mix in vortex mixer, prepares leaching agent；
(2) first raw ore (containing gold 2.36g/t, sulfur grade 0.38%) is ground by ball mill, be milled to the granularity of 90% muck less than 74 μm；
(3) water use regulation pulp density reaches 35%；
(4) slurry pH is regulated with Calx or Caustic soda or soda so that pH values of pulp is 12；
(5) Ore per ton or breeze add the leaching agent 3000 grams described in step (1)；
(6) inflation, stirring, leaching, extraction time is 36 hours；
(7) zinc dust precipitation or activated carbon adsorption or ion exchange resin is adopted to reclaim gold, silver.
(8) taste of sample analysis leaching slag gold and silver grade, show that leaching slag gold grade is 0.30g/t, and gold leaching rate is 87.3%.
A kind of preparation method of environment-friendly type composite noble metal leaching agent, in described leaching agent, oxidant A, modified humic acid salt B, aminoacid C also have consisting of mode:
Example 8 Example 9 Example 10 Example 11 Example 12 Example 13 Example 14 Example 15 Example 16
CaO2、 10 parts —— —— —— —— 10 parts 10 parts 10 parts 10 parts
Na2S2O8、 —— 10 parts —— —— —— 10 parts —— —— ——
K2S2O8、 —— —— 10 parts —— —— —— 10 parts —— ——
(NH4)2S2O8 —— —— —— 10 parts —— —— —— 10 parts ——
2Na2CO3·3H2O2 —— —— —— —— 10 parts —— —— —— 10 parts
Sulfonated humic acid sodium 10 parts 20 parts 30 parts 40 parts 50 parts 20 parts 20 parts 20 parts 20 parts
Nitrated sodium humate —— —— —— —— —— —— —— —— ——
Sulfonated humic acid ammonium —— —— —— —— —— —— —— —— ——
Nitrated ammonium humate —— —— —— —— —— —— —— —— ——
Sulfonated humic acid —— —— —— —— —— —— —— —— ——
Nitrated humic acids —— —— —— —— —— —— —— —— ——
Glycine 10 parts 10 parts 10 parts 10 parts 10 parts 40 parts 60 parts 80 parts 100 parts
Histidine —— —— —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— —— —— ——
Example 17 Example 18 Example 19 Example 20 Example 21 Example 22 Example 23 Example 24 Example 25
CaO2、 —— —— —— —— —— —— 10 parts 10 parts 10 parts
Na2S2O8、 10 parts 10 parts 10 parts —— —— —— 10 parts 10 parts 10 parts
K2S2O8、 10 parts —— —— 10 parts 10 parts —— 10 parts —— ——
(NH4)2S2O8 —— 10 parts —— 10 parts —— 10 parts —— 10 parts ——
2Na2CO3·3H2O2 —— —— 10 parts —— 10 parts 10 parts —— —— 10 parts
Sulfonated humic acid sodium 20 parts 40 parts 60 parts 80 parts 100 parts 20 parts 30 parts 30 parts 30 parts
Nitrated sodium humate —— —— —— —— —— —— —— —— ——
Sulfonated humic acid ammonium —— —— —— —— —— —— —— —— ——
Nitrated ammonium humate —— —— —— —— —— —— —— —— ——
Sulfonated humic acid —— —— —— —— —— —— —— —— ——
Nitrated humic acids —— —— —— —— —— —— —— —— ——
Glycine 20 parts 40 parts 60 parts 80 parts 100 parts 40 parts 60 parts 80 parts 100 parts
Histidine —— —— —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— —— —— ——
Example 26 Example 27 Example 28 Example 29 Example 30 Example 31 Example 32 Example 33 Example 34
CaO2、 —— —— —— 10 parts 10 parts —— 10 parts 10 parts ——
Na2S2O8、 10 parts 10 parts —— 10 parts 10 parts 10 parts 10 parts —— 10 parts
K2S2O8、 10 parts 10 parts 10 parts 10 parts 10 parts 10 parts 10 parts —— ——
(NH4)2S2O8 10 parts —— 10 parts 10 parts —— 10 parts 10 parts —— ——
2Na2CO3·3H2O2 —— 10 parts 10 parts —— 10 parts 10 parts 10 parts —— ——
Sulfonated humic acid sodium 30 parts 40 parts 60 parts 80 parts 100 parts 40 parts 50 parts —— ——
Nitrated sodium humate —— —— —— —— —— —— —— 10 parts 10 parts
Sulfonated humic acid ammonium —— —— —— —— —— —— —— —— ——
Nitrated ammonium humate —— —— —— —— —— —— —— —— ——
Sulfonated humic acid —— —— —— —— —— —— —— —— ——
Nitrated humic acids —— —— —— —— —— —— —— —— ——
Glycine 30 parts 40 parts 60 parts 80 parts 100 parts 40 parts 60 parts 10 parts 10 parts
Histidine —— —— —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— —— —— ——
Example 35 Example 36 Example 37 Example 38 Example 39 Example 40 Example 41 Example 42 Example 43
CaO2、 —— —— —— 10 parts 10 parts 10 parts 10 parts —— ——
Na2S2O8、 —— —— —— 10 parts —— —— —— 10 parts 10 parts
K2S2O8、 10 parts —— —— —— 10 parts —— —— 10 parts ——
(NH4)2S2O8 —— 10 parts —— —— —— 10 parts —— —— 10 parts
2Na2CO3·3H2O2 —— —— 10 parts —— —— —— 10 parts —— ——
Sulfonated humic acid sodium —— —— —— —— —— —— —— —— ——
Nitrated sodium humate 30 parts 40 parts 50 parts 20 parts 20 parts 20 parts 20 parts 20 parts 40 parts
Sulfonated humic acid ammonium —— —— —— —— —— —— —— —— ——
Nitrated ammonium humate —— —— —— —— —— —— —— —— ——
Sulfonated humic acid —— —— —— —— —— —— —— —— ——
Nitrated humic acids —— —— —— —— —— —— —— —— ——
Glycine 10 parts 10 parts 10 parts 40 parts 60 parts 80 parts 100 parts 20 parts 40 parts
Histidine —— —— —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— —— —— ——
Example 44 Example 45 Example 46 Example 47 Example 48 Example 49 Example 50 Example 51 Example 52
CaO2、 —— —— —— —— 10 parts 10 parts 10 parts —— ——
Na2S2O8、 10 parts —— —— —— 10 parts 10 parts 10 parts 10 parts 10 parts
K2S2O8、 —— 10 parts 10 parts —— 10 parts —— —— 10 parts 10 parts
(NH4)2S2O8 —— 10 parts —— 10 parts —— 10 parts —— 10 parts ——
2Na2CO3·3H2O2 10 parts —— 10 parts 10 parts —— —— 10 parts —— 10 parts
Sulfonated humic acid sodium —— —— —— —— —— —— —— —— ——
Nitrated sodium humate 60 parts 80 parts 100 parts 20 parts 30 parts 30 parts 30 parts 30 parts 40 parts
Sulfonated humic acid ammonium —— —— —— —— —— —— —— —— ——
Nitrated ammonium humate —— —— —— —— —— —— —— —— ——
Sulfonated humic acid —— —— —— —— —— —— —— —— ——
Nitrated humic acids —— —— —— —— —— —— —— —— ——
Glycine 60 parts 80 parts 100 parts 40 parts 60 parts 80 parts 100 parts 30 parts 40 parts
Histidine —— —— —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— —— —— ——
Example 53 Example 54 Example 55 Example 56 Example 57 Example 58 Example 59 Example 60 Example 61
CaO2、 —— 10 parts 10 parts —— 10 parts 10 parts —— —— ——
Na2S2O8、 —— 10 parts 10 parts 10 parts 10 parts —— 10 parts —— ——
K2S2O8、 10 parts 10 parts 10 parts 10 parts 10 parts —— —— 10 parts ——
(NH4)2S2O8 10 parts 10 parts —— 10 parts 10 parts —— —— —— 10 parts
2Na2CO3·3H2O2 10 parts —— 10 parts 10 parts 10 parts —— —— —— ——
Sulfonated humic acid sodium —— —— —— —— —— —— —— —— ——
Nitrated sodium humate 60 parts 80 parts 100 parts 40 parts 50 parts —— —— —— ——
Sulfonated humic acid ammonium —— —— —— —— —— 10 parts 10 parts 30 parts 40 parts
Nitrated ammonium humate —— —— —— —— —— —— —— —— ——
Sulfonated humic acid —— —— —— —— —— —— —— —— ——
Nitrated humic acids —— —— —— —— —— —— —— —— ——
Glycine 60 parts 80 parts 100 parts 40 parts 60 parts 10 parts 10 parts 10 parts 10 parts
Histidine —— —— —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— —— —— ——
Example 80 Example 81 Example 82 Example 83 Example 84 Example 85 Example 86 Example 87 Example 88
CaO2、 10 parts —— 10 parts 10 parts —— —— —— —— 10 parts
Na2S2O8、 10 parts 10 parts 10 parts —— 10 parts —— —— —— 10 parts
K2S2O8、 10 parts 10 parts 10 parts —— —— 10 parts —— —— ——
(NH4)2S2O8 —— 10 parts 10 parts —— —— —— 10 parts —— ——
2Na2CO3·3H2O2 10 parts 10 parts 10 parts —— —— —— —— 10 parts ——
Sulfonated humic acid sodium —— —— —— —— —— —— —— —— ——
Nitrated sodium humate —— —— —— —— —— —— —— —— ——
Sulfonated humic acid ammonium 100 parts 40 parts 50 parts —— —— —— —— —— ——
Nitrated ammonium humate —— —— —— 10 parts 10 parts 30 parts 40 parts 50 parts 20 parts
Sulfonated humic acid —— —— —— —— —— —— —— —— ——
Nitrated humic acids —— —— —— —— —— —— —— —— ——
Glycine 100 parts 40 parts 60 parts 10 parts 10 parts 10 parts 10 parts 10 parts 40 parts
Histidine —— —— —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— —— —— ——
Example 98 Example 99 Example 100 Example 101 Example 102 Example 103 Example 104
CaO2、 10 parts 10 parts 10 parts —— —— —— 10 parts
Na2S2O8、 10 parts 10 parts 10 parts 10 parts 10 parts —— 10 parts
K2S2O8、 10 parts —— —— 10 parts 10 parts 10 parts 10 parts
(NH4)2S2O8 —— 10 parts —— 10 parts —— 10 parts 10 parts
2Na2CO3·3H2O2 —— —— 10 parts —— 10 parts 10 parts ——
Sulfonated humic acid sodium —— —— —— —— —— —— ——
Nitrated sodium humate —— —— —— —— —— —— ——
Sulfonated humic acid ammonium —— —— —— —— —— —— ——
Nitrated ammonium humate 30 parts 30 parts 30 parts 30 parts 40 parts 60 parts 80 parts
Sulfonated humic acid —— —— —— —— —— —— ——
Nitrated humic acids —— —— —— —— —— —— ——
Glycine 60 parts 80 parts 100 parts 30 parts 40 parts 60 parts 80 parts
Histidine —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— ——
Example 105 Example 106 Example 107 Example 108 Example 109 Example 110 Example 111
CaO2、 10 parts —— 10 parts 10 parts —— —— ——
Na2S2O8、 10 parts 10 parts 10 parts —— 10 parts —— ——
K2S2O8、 10 parts 10 parts 10 parts —— —— 10 parts ——
(NH4)2S2O8 —— 10 parts 10 parts —— —— —— 10 parts
2Na2CO3·3H2O2 10 parts 10 parts 10 parts —— —— —— ——
Sulfonated humic acid sodium —— —— —— —— —— —— ——
Nitrated sodium humate —— —— —— —— —— —— ——
Sulfonated humic acid ammonium —— —— —— —— —— —— ——
Nitrated ammonium humate 100 parts 40 parts 50 parts —— —— —— ——
Sulfonated humic acid —— —— —— 10 parts 10 parts 30 parts 40 parts
Nitrated humic acids —— —— —— —— —— —— ——
Glycine 100 parts 40 parts 60 parts 10 parts 10 parts 10 parts 10 parts
Histidine —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— ——
Example 112 Example 113 Example 114 Example 115 Example 116 Example 117 Example 118
CaO2、 —— 10 parts 10 parts 10 parts 10 parts —— ——
Na2S2O8、 —— 10 parts —— —— —— 10 parts 10 parts
K2S2O8、 —— —— 10 parts —— —— 10 parts ——
(NH4)2S2O8 —— —— —— 10 parts —— —— 10 parts
2Na2CO3·3H2O2 10 parts —— —— —— 10 parts —— ——
Sulfonated humic acid sodium —— —— —— —— —— —— ——
Nitrated sodium humate —— —— —— —— —— —— ——
Sulfonated humic acid ammonium —— —— —— —— —— —— ——
Nitrated ammonium humate —— —— —— —— —— —— ——
Sulfonated humic acid 50 parts 20 parts 20 parts 20 parts 20 parts 20 parts 40 parts
Nitrated humic acids —— —— —— —— —— —— ——
Glycine 10 parts 40 parts 60 parts 80 parts 100 parts 20 parts 40 parts
Histidine —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— ——
Example 119 Example 120 Example 121 Example 122 Example 123 Example 124 Example 125
CaO2、 —— —— —— —— 10 parts 10 parts 10 parts
Na2S2O8、 10 parts —— —— —— 10 parts 10 parts 10 parts
K2S2O8、 —— 10 parts 10 parts —— 10 parts —— ——
(NH4)2S2O8 —— 10 parts —— 10 parts —— 10 parts ——
2Na2CO3·3H2O2 10 parts —— 10 parts 10 parts —— —— 10 parts
Sulfonated humic acid sodium —— —— —— —— —— —— ——
Nitrated sodium humate —— —— —— —— —— —— ——
Sulfonated humic acid ammonium —— —— —— —— —— —— ——
Nitrated ammonium humate —— —— —— —— —— —— ——
Sulfonated humic acid 60 parts 80 parts 100 parts 20 parts 30 parts 30 parts 30 parts
Nitrated humic acids —— —— —— —— —— —— ——
Glycine 60 parts 80 parts 100 parts 40 parts 60 parts 80 parts 100 parts
Histidine —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— ——
Example 126 Example 127 Example 128 Example 129 Example 130 Example 131 Example 132
CaO2、 —— —— —— 10 parts 10 parts —— 10 parts
Na2S2O8、 10 parts 10 parts —— 10 parts 10 parts 10 parts 10 parts
K2S2O8、 10 parts 10 parts 10 parts 10 parts 10 parts 10 parts 10 parts
(NH4)2S2O8 10 parts —— 10 parts 10 parts —— 10 parts 10 parts
2Na2CO3·3H2O2 —— 10 parts 10 parts —— 10 parts 10 parts 10 parts
Sulfonated humic acid sodium —— —— —— —— —— —— ——
Nitrated sodium humate —— —— —— —— —— —— ——
Sulfonated humic acid ammonium —— —— —— —— —— —— ——
Nitrated ammonium humate —— —— —— —— —— —— ——
Sulfonated humic acid 30 parts 40 parts 60 parts 80 parts 100 parts 40 parts 50 parts
Nitrated humic acids —— —— —— —— —— —— ——
Glycine 30 parts 40 parts 60 parts 80 parts 100 parts 40 parts 60 parts
Histidine —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— ——
Example 133 Example 134 Example 135 Example 136 Example 137 Example 138 Example 139
CaO2、 10 parts —— —— —— —— 10 parts 10 parts
Na2S2O8、 —— 10 parts —— —— —— 10 parts ——
K2S2O8、 —— —— 10 parts —— —— —— 10 parts
(NH4)2S2O8 —— —— —— 10 parts —— —— ——
2Na2CO3·3H2O2 —— —— —— —— 10 parts —— ——
Sulfonated humic acid sodium —— —— —— —— —— —— ——
Nitrated sodium humate —— —— —— —— —— —— ——
Sulfonated humic acid ammonium —— —— —— —— —— —— ——
Nitrated ammonium humate —— —— —— —— —— —— ——
Sulfonated humic acid —— —— —— —— —— —— ——
Nitrated humic acids 10 parts 10 parts 30 parts 40 parts 50 parts 20 parts 20 parts
Glycine 10 parts 10 parts 10 parts 10 parts 10 parts 40 parts 60 parts
Histidine —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— ——
Example 140 Example 141 Example 142 Example 143 Example 144 Example 145 Example 146
CaO2、 10 parts 10 parts —— —— —— —— ——
Na2S2O8、 —— —— 10 parts 10 parts 10 parts —— ——
K2S2O8、 —— —— 10 parts —— —— 10 parts 10 parts
(NH4)2S2O8 10 parts —— —— 10 parts —— 10 parts ——
2Na2CO3·3H2O2 —— 10 parts —— —— 10 parts —— 10 parts
Sulfonated humic acid sodium —— —— —— —— —— —— ——
Nitrated sodium humate —— —— —— —— —— —— ——
Sulfonated humic acid ammonium —— —— —— —— —— —— ——
Nitrated ammonium humate —— —— —— —— —— —— ——
Sulfonated humic acid —— —— —— —— —— —— ——
Nitrated humic acids 20 parts 20 parts 20 parts 40 parts 60 parts 80 parts 100 parts
Glycine 80 parts 100 parts 20 parts 40 parts 60 parts 80 parts 100 parts
Histidine —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— ——
Example 147 Example 148 Example 149 Example 150 Example 151 Example 152 Example 153
CaO2、 —— 10 parts 10 parts 10 parts —— —— ——
Na2S2O8、 —— 10 parts 10 parts 10 parts 10 parts 10 parts ——
K2S2O8、 —— 10 parts —— —— 10 parts 10 parts 10 parts
(NH4)2S2O8 10 parts —— 10 parts —— 10 parts —— 10 parts
2Na2CO3·3H2O2 10 parts —— —— 10 parts —— 10 parts 10 parts
Sulfonated humic acid sodium —— —— —— —— —— —— ——
Nitrated sodium humate —— —— —— —— —— —— ——
Sulfonated humic acid ammonium —— —— —— —— —— —— ——
Nitrated ammonium humate —— —— —— —— —— —— ——
Sulfonated humic acid —— —— —— —— —— —— ——
Nitrated humic acids 20 parts 30 parts 30 parts 30 parts 30 parts 40 parts 60 parts
Glycine 40 parts 60 parts 80 parts 100 parts 30 parts 40 parts 60 parts
Histidine —— —— —— —— —— —— ——
Cysteine —— —— —— —— —— —— ——
Winter propylhomoserin —— —— —— —— —— —— ——
Aminoacetic acid —— —— —— —— —— —— ——
Phenylalanine —— —— —— —— —— —— ——
Example 154 Example 155 Example 156 Example 157
CaO2、 10 parts 10 parts —— 10 parts
Na2S2O8、 10 parts 10 parts 10 parts 10 parts
K2S2O8、 10 parts 10 parts 10 parts 10 parts
(NH4)2S2O8 10 parts —— 10 parts 10 parts
2Na2CO3·3H2O2 —— 10 parts 10 parts 10 parts
Sulfonated humic acid sodium —— —— —— ——
Nitrated sodium humate —— —— —— ——
Sulfonated humic acid ammonium —— —— —— ——
Nitrated ammonium humate —— —— —— ——
Sulfonated humic acid —— —— —— ——
Nitrated humic acids 80 parts 100 parts 40 parts 50 parts
Glycine 80 parts 100 parts 40 parts 60 parts
Histidine —— —— —— ——
Cysteine —— —— —— ——
Winter propylhomoserin —— —— —— ——
Aminoacetic acid —— —— —— ——
Phenylalanine —— —— —— ——
On the basis of above-described embodiment, oxidant A is according to the sequential loop of display in above table, and modified humic acid salt B replaces with sulfonated humic acid sodium and nitrated sodium humate gradually；Sulfonated humic acid sodium and sulfonated humic acid ammonium；Sulfonated humic acid sodium and nitrated ammonium humate；Sulfonated humic acid sodium and sulfonated humic acid；Sulfonated humic acid sodium and nitrated humic acids；Nitrated sodium humate and sulfonated humic acid ammonium；Nitrated sodium humate and nitrated ammonium humate；Nitrated sodium humate and sulfonated humic acid；Nitrated sodium humate and nitrated humic acids；Sulfonated humic acid ammonium and nitrated ammonium humate；Sulfonated humic acid ammonium and sulfonated humic acid；Sulfonated humic acid ammonium and nitrated humic acids；Nitrated ammonium humate and sulfonated humic acid；Nitrated ammonium humate and nitrated humic acids；Sulfonated humic acid and nitrated humic acids；Sulfonated humic acid sodium, nitrated sodium humate and sulfonated humic acid ammonium；Sulfonated humic acid sodium, nitrated sodium humate and nitrated ammonium humate；Sulfonated humic acid sodium, nitrated sodium humate and sulfonated humic acid；Sulfonated humic acid sodium, nitrated sodium humate and nitrated humic acids；Nitrated sodium humate, sulfonated humic acid ammonium and nitrated ammonium humate；Nitrated sodium humate, sulfonated humic acid ammonium and sulfonated humic acid；Nitrated sodium humate, sulfonated humic acid ammonium and nitrated humic acids；Sulfonated humic acid ammonium, nitrated ammonium humate and sulfonated humic acid；Sulfonated humic acid ammonium, nitrated ammonium humate and nitrated humic acids；Nitrated ammonium humate, sulfonated humic acid and nitrated humic acids；Sulfonated humic acid sodium, nitrated sodium humate, sulfonated humic acid ammonium and nitrated ammonium humate；Sulfonated humic acid sodium, nitrated sodium humate, sulfonated humic acid ammonium and sulfonated humic acid；Sulfonated humic acid sodium, nitrated sodium humate, sulfonated humic acid ammonium and nitrated humic acids；Sulfonated humic acid sodium, nitrated sodium humate, sulfonated humic acid ammonium, nitrated ammonium humate and sulfonated humic acid；Sulfonated humic acid sodium, nitrated sodium humate, sulfonated humic acid ammonium, nitrated ammonium humate and nitrated humic acids；Sulfonated humic acid sodium, nitrated sodium humate, sulfonated humic acid ammonium, nitrated ammonium humate, sulfonated humic acid and nitrated humic acids；
Circulating in the order described above according to the sequential loop in above table, modified humic acid salt B at oxidant A, aminoacid C replaces with glycine gradually；Histidine；Cysteine；Winter propylhomoserin；Aminoacetic acid；Phenylalanine；Glycine and histidine；Glycine and cysteine；Glycine and winter propylhomoserin；Glycine and aminoacetic acid；Glycine and phenylalanine；Histidine and cysteine；Histidine and winter propylhomoserin；Histidine and aminoacetic acid；Histidine and phenylalanine；Cysteine and winter propylhomoserin；Cysteine and aminoacetic acid；Cysteine and phenylalanine；Winter propylhomoserin and aminoacetic acid；Winter propylhomoserin and phenylalanine；Aminoacetic acid and phenylalanine；Glycine, histidine and cysteine；Glycine, histidine and winter propylhomoserin；Glycine, histidine and aminoacetic acid；Glycine, histidine and phenylalanine；Histidine, cysteine and winter propylhomoserin；Histidine, cysteine and aminoacetic acid；Histidine, cysteine and phenylalanine；Cysteine, winter propylhomoserin and aminoacetic acid；Cysteine, winter propylhomoserin and phenylalanine；Winter propylhomoserin, aminoacetic acid and phenylalanine；Glycine, histidine, cysteine and winter propylhomoserin；Glycine, histidine, cysteine and aminoacetic acid；Glycine, histidine, cysteine and phenylalanine；Histidine, cysteine, winter propylhomoserin and aminoacetic acid；Histidine, cysteine, winter propylhomoserin and phenylalanine；Cysteine, winter propylhomoserin, aminoacetic acid, phenylalanine；Glycine, histidine, cysteine, winter propylhomoserin and aminoacetic acid；Glycine, histidine, cysteine, winter propylhomoserin and phenylalanine；Glycine, histidine, cysteine, winter propylhomoserin, aminoacetic acid and phenylalanine.

Claims (6)

1. an environment-friendly type composite noble metal leaching agent, it is characterised in that: described leaching agent is made up of oxidant A, modified humic acid salt B, aminoacid C, oxidant A: modified humic acid salt B: the weight ratio of aminoacid C is 1:1-5:1-5.
2. a kind of environment-friendly type composite noble metal leaching agent according to claim 1, it is characterised in that: described oxidant A is CaO2、Na2S2O8、K2S2O8、(NH4)2S2O8、2Na2CO3·3H2O2In one or more.
3. a kind of environment-friendly type composite noble metal leaching agent according to claim 1, it is characterised in that: described modified humic acid salt B is one or more in sulfonated humic acid sodium, nitrated sodium humate, sulfonated humic acid ammonium, nitrated ammonium humate, sulfonated humic acid, nitrated humic acids.
4. a kind of environment-friendly type composite noble metal leaching agent according to claim 1, it is characterised in that: described aminoacid C is one or more in glycine, histidine, cysteine, winter propylhomoserin, aminoacetic acid, phenylalanine.
5. the preparation method of a kind of environment-friendly type composite noble metal leaching agent according to claim 1, it is characterised in that: its preparation method comprises the following steps:
(1) first raw ore is ground by ball mill, be milled to the granularity of 90% muck less than 74 μm；
(2) water use regulation pulp density reaches 15-70%；
(3) slurry pH is regulated with Calx or Caustic soda or soda so that pH values of pulp > 10；
(4) Ore per ton or breeze add the leaching agent 100～5000 grams described in claim 1；
(5) inflation, stirring, leaching, extraction time is 10-48 hour；
(6) zinc dust precipitation or activated carbon adsorption or ion exchange resin is adopted to reclaim gold, silver.
6. the preparation method of a kind of environment-friendly type composite noble metal leaching agent according to claim 5, it is characterised in that: in described step (2), first water use regulation pulp density reaches 35-45%.
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CN107674994A (en) * 2017-09-22 2018-02-09 长春黄金研究院 A kind of nontoxic while Leaching of Gold of cleaning, the method for copper
CN109499625A (en) * 2018-11-06 2019-03-22 长春黄金研究院有限公司 A kind of efficient elution process of gold loaded resin
CN111004922A (en) * 2019-12-12 2020-04-14 昆明理工大学 Method for recovering gold in thiosulfate system
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CN106191460A (en) * 2016-09-13 2016-12-07 中国科学院上海高等研究院 A kind of without cyanogen extractant and process for extracting gold
CN106191460B (en) * 2016-09-13 2018-12-04 中国科学院上海高等研究院 A kind of no cyanogen extractant and process for extracting gold
CN107674994A (en) * 2017-09-22 2018-02-09 长春黄金研究院 A kind of nontoxic while Leaching of Gold of cleaning, the method for copper
CN109499625A (en) * 2018-11-06 2019-03-22 长春黄金研究院有限公司 A kind of efficient elution process of gold loaded resin
CN111004922A (en) * 2019-12-12 2020-04-14 昆明理工大学 Method for recovering gold in thiosulfate system
CN117947279A (en) * 2024-03-26 2024-04-30 中国矿业大学(北京) Method for improving leaching rate of gold ore

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