CN109943731A - One kind is environmentally protective to propose golden agent and preparation method thereof - Google Patents
One kind is environmentally protective to propose golden agent and preparation method thereof Download PDFInfo
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Abstract
Environmentally protective golden agent and preparation method thereof is proposed the present invention relates to a kind of, its product main ingredient is the sodium carbonate of 35 ~ 40% Zassols and 45 ~ 50%, using cyanuric acid and soda ash as raw material, pyroreaction generates, it is provided by the present invention environmentally protective to propose golden agent, refining in processing in gold ore has higher technical level, effect is preferable in molten gold experiment, even more solves the problems, such as the generation of cyanide wastewater, using waste water caused by this project product without noxious materials such as cyanides, sewage drainage standard can reach.
Description
Technical field
The present invention relates to it is a kind of it is environmentally protective propose golden agent and preparation method thereof, belong to golden production technical field.
Background technique
It is well known that gold is the metallics of a kind of great economic value and industrial value, meeting people's lives need
, to ensure that country's finance and economic security etc. play a significant role.Current gold extracting method main in the world with urea and
Sodium carbonate is primary raw material, under the action of reaction promoter, is produced by pyroreaction with cyanuric acid sodium, based on thiocarbamide
Golden agent is proposed, there is ammonia release during the reaction, while cyaniding sodium content is higher in product, there is severe toxicity, and be unfavorable for environmental protection.
It is directed to drawbacks described above, the prior art has carried out a large amount of research, and disclosed report is as follows: CN108441648A is public
It has opened a kind of environmental protection and has proposed golden agent, it is characterised in that by sodium carbonate, urea, sodium chloride, vulcanized sodium, iodine, the potassium ferricyanide, thiocyanic acid
Sodium, sodium bromide and the synthesis of sodium thiosulfate thermal response, the mass ratio of each component are as follows: sodium carbonate 20%-50%, urea 10%-50%, chlorine
Change sodium 1%-10%, vulcanized sodium 1%-5%, iodine 1%-5%, potassium ferricyanide 1%-5%, sodium sulfocyanate 1%-5%, sodium bromide 1%-5% and thio
Sodium sulphate 1%-5% is heated to 700-800 DEG C in closed container after mixing with blender and carries out thermal response, and keeps the temperature 1-
5h is poured out to open container cooled to room temperature and is formed.CN109136552A discloses a kind of improved environment protection and proposes golden agent,
Be characterized in that: raw material includes potassium ferrocyanide, urea element, vulcanized sodium, sodium hydroxide, calgon, sodium carbonate, is by taking in proportion
Oxidant, arsenic removing agent or iodide or lead salt or barium hydroxide mixing is added after 700 DEG C of at a temperature of tanning forms in raw material
It forms.CN107475528A discloses a kind of environment-friendly type and proposes golden agent, is prepared by the substance of following parts by weight: urea 25-
35 parts, 15-25 parts of sodium hydroxide, 10-20 parts of sodium carbonate, 5-15 parts of yellow sodium prussiate, 10-20 parts of sodium oxide molybdena, thiosulfate 5-
15 parts.The above raw material is placed in reaction vessel, and is uniformly mixed by blender, agitator shaft speed 40-50r/min is right
Reaction vessel is heated, and under the conditions of 600-850 DEG C, 1-3h is reacted in stainless steel reaction pot, make melting sources, it is cooling
It to room temperature, is subsequently poured into jaw crusher and is crushed, grinding particle size 10-40mm obtains finished product after crushing.With top
Although method avoids the generation of cyanide, but all there is complicated component, the cumbersome defect of preparation method.
A kind of simple and environmentally-friendly golden agent is proposed in view of this, needing to invent.
Summary of the invention
It is an object of the invention to overcome defect existing in the prior art, provide it is a kind of it is environmentally protective propose golden agent, have
Higher gold leaching rate suitable for the recycling and utilization of oxidation containing gold, mine semi-oxidized and tailing, tailings, and provides its system simultaneously
Preparation Method.
To solve the above problems, the technical solution used in the present invention is:
One aspect of the present invention, which provides, a kind of environmentally protective proposes golden agent comprising 35 ~ 40% Zassols and 45 ~ 50% sodium carbonate.
As further optimization of the invention, the Zassol and sodium carbonate are composite melt state.
As further optimization of the invention, raw material includes following components in percentage by weight: sodium carbonate 60 ~ 70%, cyanogen
Uric acid 20 ~ 30% and surplus auxiliary agent.
As further optimization of the invention, the auxiliary agent is sodium halide.
As further optimization of the invention, the auxiliary agent is sodium chloride and sodium iodide.
As further optimization of the invention, the sodium chloride accounts for the 65 ~ 75% of auxiliary agent total amount.
As further optimization of the invention, it is prepared by being heated after mixing raw material.
Another aspect of the present invention provides a kind of above-mentioned environmentally protective preparation method for proposing golden agent, by the weight percent
Weigh raw material: the above raw material is placed in reaction vessel, heats to reaction vessel, 5 ~ 6 by cyanuric acid, sodium carbonate and auxiliary agent
Hour persistently overheating stops heating to 800 ~ 850 DEG C, and after keeping 5 ~ 10min, discharging cooling to obtain the final product.
As optimization of the invention further, the heating schedule of the persistently overheating is as follows: persistently overheating is to 300 in 2h
DEG C, 5 ~ 10min is kept the temperature, then be warming up to 800 ~ 850 DEG C through 4h.
As further optimization of the invention, is pelletized after cooling, be packaged to be final products.
In the present invention, cyanogen of the raw material by way of persistently overheating, when temperature rises to 140 DEG C~190 DEG C, in material
Uric acid is reacted with soda ash, generates cyanuric acid sodium, and reaction equation is as follows:
When 300 DEG C, cyanuric acid total overall reaction generates cyanuric acid sodium, as the temperature rises, cyanuric acid sodium part point
For solution at Zassol, reaction equation is as follows:
The effect of sodium chloride is catalyst in the present invention, promotes cyanuric acid and sodium carbonate reaction, and cyanuric acid can be allowed to reach and divided
It is just reacted away with sodium carbonate before solution temperature, while generating ammonium chloride with ammonium ion a small amount of in reactant.The work that sodium iodide rises
With being to inhibit Zassol pyrolytic, membranization under sodium iodide high temperature can inhibit Zassol to decompose, and sodium iodide finally decomposes,
Iodine falls at monomer distillation, and sodium enters complex compound in the form of an ion, when use proposes golden agent, is dissolved in after water into sodium hydroxide, thus
Make solution at alkalinity, conducive to gold is mentioned.
The beneficial effects of adopting the technical scheme are that
It is provided by the present invention it is environmentally protective propose golden agent, gold ore refine processing in have higher technical level, in molten gold
Effect is preferable in experiment, even more solves the problems, such as the generation of cyanide wastewater, is free of cyanogen using waste water caused by this project product
The noxious materials such as compound, can reach sewage drainage standard.
The environmentally protective main application for proposing golden agent provided by the present invention is that the refinement processing of gold ore is adjuvant used；Using
Field is gold ore processing.Suitable for the recycling and utilization of oxidation containing gold, mine semi-oxidized and tailing, tailings, especially to cyanide
It cannot handle or intractable ore (arsenic, copper, iron, lead, zinc, carbon, sulfide) can directly recycle gold and silver.
Method provided by the present invention reacts cyanuric acid at high temperature with soda ash and generates Zassol, formed with Zassol
With sodium carbonate based on propose golden agent, low energy consumption for whole process, easy to operate, mild condition, be applicable in large-scale production.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, invention is carried out combined with specific embodiments below
Clear, complete description.
Embodiment 1
Weigh each raw material mixing by following percentage: sodium carbonate 70%, cyanuric acid 20%, sodium chloride 7% and sodium iodide 3% will mix
Good reaction mass, which is sent into roaster flue, to be reacted, and is directly heated liner using combustion of natural gas, is passed through automatic adjustment
Valve controls natural gas air inflow and the air blower blow rate required adjusts in-furnace temperature.Heating rate control was raised to 800 at 6 hours or so~
850℃.Wherein, 300 DEG C are continued to be heated within first two hours, 5min is kept the temperature, reaches technological temperature 850 using heating in 4 hours
DEG C when, stop heating, after ten minutes open discharge valve carry out discharging, product, which is unloaded, is cooled to 250 degree or so into trough
It is sent into product warehouse to be granulated using pelletizer, the product for having made grain is sent into bagging sealing machine and is packed and sealed.
Embodiment 2
Weigh each raw material mixing by following percentage: sodium carbonate 60%, cyanuric acid 30%, sodium chloride 7% and sodium iodide 3% will mix
Good reaction mass, which is sent into roaster flue, to be reacted, and is directly heated liner using combustion of natural gas, is passed through automatic adjustment
Valve controls natural gas air inflow and the air blower blow rate required adjusts in-furnace temperature.Heating rate control was raised to 800 at 6 hours or so~
850℃.Wherein, 300 DEG C are continued to be heated within first two hours, 5min is kept the temperature, reaches technological temperature 850 using heating in 4 hours
DEG C when, stop heating, after ten minutes open discharge valve carry out discharging, product, which is unloaded, is cooled to 250 degree or so into trough
It is sent into product warehouse to be granulated using pelletizer, the product for having made grain is sent into bagging sealing machine and is packed and sealed.
Embodiment 3
Weigh each raw material mixing by following percentage: sodium carbonate 68%, cyanuric acid 22%, sodium chloride 7% and sodium iodide 3% will mix
Good reaction mass, which is sent into roaster flue, to be reacted, and is directly heated liner using combustion of natural gas, is passed through automatic adjustment
Valve controls natural gas air inflow and the air blower blow rate required adjusts in-furnace temperature.Heating rate control was raised to 850 DEG C at 6 hours.Its
In, 300 DEG C are continued to be heated within first two hours, 5min is kept the temperature, when reaching 850 DEG C of technological temperature using heating in 4 hours, is stopped
Heating opens discharge valve after ten minutes and carries out discharging, and product, which is unloaded, to be cooled to 250 degree or so into trough and can be sent into product storehouse
Library is granulated using pelletizer, and the product for having made grain is sent into bagging sealing machine and is packed and sealed.
Embodiment 4
Weigh each raw material mixing by following percentage: sodium carbonate 65%, cyanuric acid 25%, sodium chloride 7% and sodium iodide 3% will mix
Good reaction mass, which is sent into roaster flue, to be reacted, and is directly heated liner using combustion of natural gas, is passed through automatic adjustment
Valve controls natural gas air inflow and the air blower blow rate required adjusts in-furnace temperature.Heating rate control was raised to 850 DEG C at 6 hours.Its
In, 300 DEG C are continued to be heated within first two hours, 5min is kept the temperature, when reaching 850 DEG C of technological temperature using heating in 4 hours, is stopped
Heating opens discharge valve after ten minutes and carries out discharging, and product, which is unloaded, to be cooled to 250 degree or so into trough and can be sent into product storehouse
Library is granulated using pelletizer, and the product for having made grain is sent into bagging sealing machine and is packed and sealed.
Embodiment 5
Weigh each raw material mixing by following percentage: sodium carbonate 65%, cyanuric acid 22%, sodium chloride 12% and sodium iodide 6% will mix
Good reaction mass, which is sent into roaster flue, to be reacted, and is directly heated liner using combustion of natural gas, is passed through automatic adjustment
Valve controls natural gas air inflow and the air blower blow rate required adjusts in-furnace temperature.Heating rate control was raised to 850 DEG C at 6 hours.Its
In, 300 DEG C are continued to be heated within first two hours, 5min is kept the temperature, when reaching 850 DEG C of technological temperature using heating in 4 hours, is stopped
Heating opens discharge valve after ten minutes and carries out discharging, and product, which is unloaded, to be cooled to 250 degree or so into trough and can be sent into product storehouse
Library is granulated using pelletizer, and the product for having made grain is sent into bagging sealing machine and is packed and sealed.
Embodiment 6
Weigh each raw material mixing by following percentage: sodium carbonate 60%, cyanuric acid 24%, sodium chloride 11% and sodium iodide 5% will mix
Good reaction mass, which is sent into roaster flue, to be reacted, and is directly heated liner using combustion of natural gas, is passed through automatic adjustment
Valve controls natural gas air inflow and the air blower blow rate required adjusts in-furnace temperature.Heating rate control was raised to 800 at 6 hours or so
℃.Wherein, 300 DEG C are continued to be heated within first two hours, 10min is kept the temperature, reaches 850 DEG C of technological temperature using heating in 4 hours
When, stop heating, opens discharge valve after ten minutes and carry out discharging, product, which is unloaded, to be cooled to 250 degree or so into trough and can send
Enter product warehouse to be granulated using pelletizer, the product for having made grain is sent into bagging sealing machine and is packed and sealed.
Embodiment 7
Each raw material mixing: sodium carbonate 70%, cyanuric acid 20%, sodium chloride 6.5% and sodium iodide 3.5% is weighed by following percentage, it will
The reaction mass mixed, which is sent into roaster flue, to be reacted, and liner is directly heated using combustion of natural gas, by automatic
Regulating valve controls natural gas air inflow and the air blower blow rate required adjusts in-furnace temperature.Heating rate control was raised at 6 hours or so
800~850 DEG C.Wherein, 300 DEG C are continued to be heated within first two hours, 5min is kept the temperature, the heating using 4 hours reaches process warm
When spending 850 DEG C, stop heating, opens discharge valve after ten minutes and carry out discharging, product, which is unloaded, is cooled to 250 degree or so into trough
Product warehouse can be sent into be granulated using pelletizer, the product for having made grain is sent into bagging sealing machine and is packed and sealed.
Embodiment 8
Each raw material mixing: sodium carbonate 70%, cyanuric acid 20%, sodium chloride 7.5% and sodium iodide 2.5% is weighed by following percentage, it will
The reaction mass mixed, which is sent into roaster flue, to be reacted, and liner is directly heated using combustion of natural gas, by automatic
Regulating valve controls natural gas air inflow and the air blower blow rate required adjusts in-furnace temperature.Heating rate control was raised at 6 hours or so
800~850 DEG C.Wherein, 300 DEG C are continued to be heated within first two hours, 5min is kept the temperature, the heating using 4 hours reaches process warm
When spending 850 DEG C, stop heating, opens discharge valve after ten minutes and carry out discharging, product, which is unloaded, is cooled to 250 degree or so into trough
Product warehouse can be sent into be granulated using pelletizer, the product for having made grain is sent into bagging sealing machine and is packed and sealed.
Effect example 1
Performance index determining is carried out to the golden agent that mentions that 1 ~ embodiment of embodiment 7 obtains, is specifically shown in Table 1:
1 product performance index table of table
Effect example 2
It environmentally protective propose golden agent by what embodiment 1 obtained compared with Cymag proposes the service condition of golden agent and is shown in Table 2:
2 service condition contrast table of table
Comparative example 1
Weigh each raw material mixing by following percentage: sodium carbonate 70%, cyanuric acid 20%, sodium chloride 7% and sodium iodide 3% will mix
Good reaction mass, which is sent into roaster flue, to be reacted, and is directly heated liner using combustion of natural gas, is passed through automatic adjustment
Valve controls natural gas air inflow and the air blower blow rate required adjusts in-furnace temperature.Heating rate control was raised to 800 at 6 hours or so~
850℃.Wherein, when 1 hour heating reaches 850 DEG C of technological temperature, then 3 hours are kept the temperature, stops heating, opens unload after ten minutes
Expect that valve carries out discharging, product is unloaded to be cooled to 250 DEG C or so into trough and can be sent into product warehouse and be made using pelletizer
Grain, the product for having made grain are sent into bagging sealing machine and are packed and sealed.
After testing, the product obtained by this method, gold leaching rate decline 74.7% compared with embodiment.
Comparative example 2
Weigh each raw material mixing by following percentage: sodium carbonate 70%, cyanuric acid 20%, sodium chloride 7% and sodium iodide 3% will mix
Good reaction mass, which is sent into roaster flue, to be reacted, and is directly heated liner using combustion of natural gas, is passed through automatic adjustment
Valve controls natural gas air inflow and the air blower blow rate required adjusts in-furnace temperature.Heating rate control was raised to 800 at 6 hours or so~
850℃.Wherein, when 3 hours continue to be heated to 850 DEG C of technological temperature, insulation reaction 3 hours, stop heating, beat after ten minutes
Open discharge valve carry out discharging, product unload be cooled into trough 250 degree or so can be sent into product warehouse using pelletizer into
Row is granulated, and the product for having made grain is sent into bagging sealing machine and is packed and sealed.
After testing, the product obtained by this method, gold leaching rate decline 63.2% compared with Example 1.
Comparative example 3
Weigh each raw material mixing by following percentage: sodium carbonate 70%, cyanuric acid 20%, sodium chloride 7% and sodium iodide 3% will mix
Good reaction mass, which is sent into roaster flue, to be reacted, and is directly heated liner using combustion of natural gas, is passed through automatic adjustment
Valve controls natural gas air inflow and the air blower blow rate required adjusts in-furnace temperature.Heating rate control was raised to 800 at 4 hours or so~
850℃.Wherein, 300 DEG C are continued to be heated within first two hours, 5min is kept the temperature, reaches technological temperature 850 using heating in 2 hours
DEG C when, stop heating, after ten minutes open discharge valve carry out discharging, product, which is unloaded, is cooled to 250 degree or so into trough
It is sent into product warehouse to be granulated using pelletizer, the product for having made grain is sent into bagging sealing machine and is packed and sealed.
After testing, the product obtained by this method, gold leaching rate decline 44.9% compared with Example 1.
Comparative example 4
Each raw material mixing: sodium carbonate 70%, cyanuric acid 20%, sodium chloride 10%, the reactant that will be mixed is weighed by following percentage
Material, which is sent into roaster flue, to be reacted, and directly heats liner using combustion of natural gas, is controlled by automatic regulating valve natural
Gas air inflow and the air blower blow rate required adjust in-furnace temperature.Heating rate control was raised to 800~850 DEG C at 6 hours or so.Its
In, 300 DEG C are continued to be heated within first two hours, 5min is kept the temperature, when reaching 850 DEG C of technological temperature using heating in 4 hours, is stopped
Heating opens discharge valve after ten minutes and carries out discharging, and product, which is unloaded, to be cooled to 250 degree or so into trough and can be sent into product storehouse
Library is granulated using pelletizer, and the product for having made grain is sent into bagging sealing machine and is packed and sealed.
After testing, the content of Zassol is only 15% in the product obtained by this method.
Comparative example 5
Each raw material mixing: sodium carbonate 70%, cyanuric acid 20%, sodium iodide 10%, the reactant that will be mixed is weighed by following percentage
Material, which is sent into roaster flue, to be reacted, and directly heats liner using combustion of natural gas, is controlled by automatic regulating valve natural
Gas air inflow and the air blower blow rate required adjust in-furnace temperature.Heating rate control was raised to 800~850 DEG C at 6 hours or so.Its
In, 300 DEG C are continued to be heated within first two hours, 5min is kept the temperature, when reaching 850 DEG C of technological temperature using heating in 4 hours, is stopped
Heating opens discharge valve after ten minutes and carries out discharging, and product, which is unloaded, to be cooled to 250 degree or so into trough and can be sent into product storehouse
Library is granulated using pelletizer, and the product for having made grain is sent into bagging sealing machine and is packed and sealed.
After testing, the content of Zassol is only 23% in the product obtained by this method.
Comparative example 6
Zassol 45% and sodium carbonate 55% are mixed, cannot achieve and mention Jin Gongneng.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (10)
1. one kind is environmentally protective to propose golden agent, which is characterized in that it includes the sodium carbonate of 35 ~ 40% Zassols and 45 ~ 50%.
2. one kind according to claim 1 is environmentally protective to propose golden agent, which is characterized in that the Zassol and sodium carbonate are total
Fusant state.
3. one kind according to claim 1 is environmentally protective to propose golden agent, which is characterized in that its raw material includes following weight percent
The component of ratio: sodium carbonate 60 ~ 70%, cyanuric acid 20~30% and surplus auxiliary agent.
4. one kind according to claim 1 is environmentally protective to propose golden agent, which is characterized in that the auxiliary agent is sodium halide.
5. one kind according to claim 1 is environmentally protective to propose golden agent, which is characterized in that the auxiliary agent is sodium chloride and iodate
Sodium.
6. one kind according to claim 1 is environmentally protective to propose golden agent, which is characterized in that the sodium chloride accounts for auxiliary agent total amount
65~75%。
7. one kind according to claim 1 is environmentally protective to propose golden agent, which is characterized in that it after mixing raw material by heating
It is prepared.
8. a kind of environmentally protective preparation method for proposing golden agent as described in claim 1-7, which is characterized in that press the weight hundred
Divide ratio to weigh raw material: the above raw material is placed in reaction vessel, heats to reaction vessel by cyanuric acid, sodium carbonate and auxiliary agent,
Persistently overheating in 5 ~ 6 hours stops heating to 800 ~ 850 DEG C, and after keeping 5 ~ 10min, discharging is cooling to obtain the final product.
9. preparation method according to claim 8, which is characterized in that the heating schedule of the persistently overheating is as follows: in 2h
Persistently overheating keeps the temperature 5 ~ 10min to 300 DEG C, then is warming up to 800 ~ 850 DEG C through 4h.
10. preparation method according to claim 8, which is characterized in that pelletized after cooling, be packaged to be final products.
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| CN104911371A (en) * | 2015-04-30 | 2015-09-16 | 潘新华 | Gold extracting agent and preparation method thereof |
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| CN106399712A (en) * | 2016-09-28 | 2017-02-15 | 金霖控股（北京）股份有限公司 | Low-toxicity environment-friendly gold beneficiation agent and preparation method thereof |
| CN107475528A (en) * | 2017-08-23 | 2017-12-15 | 洛阳市鸿达科技有限公司 | A kind of environment-friendly type puies forward golden agent and its production technology |
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- 2019-04-01 CN CN201910256485.3A patent/CN109943731A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818098A (en) * | 2006-03-14 | 2006-08-16 | 吉林大学 | Comprehensive recovery for bullion ore with various metals |
| CN103937986A (en) * | 2014-01-23 | 2014-07-23 | 柯柏友 | Preparation method of environment-friendly type precious metal beneficiation agent |
| CN104911371A (en) * | 2015-04-30 | 2015-09-16 | 潘新华 | Gold extracting agent and preparation method thereof |
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| CN105950884A (en) * | 2016-04-27 | 2016-09-21 | 天津华勘矿业选冶技术开发有限公司 | Environmental-protection gold leaching agent and preparation method thereof |
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Application publication date: 20190628 |