CN109970237A - A kind of cyaniding tailing slurry decyanation processing method - Google Patents
A kind of cyaniding tailing slurry decyanation processing method Download PDFInfo
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- CN109970237A CN109970237A CN201910246516.7A CN201910246516A CN109970237A CN 109970237 A CN109970237 A CN 109970237A CN 201910246516 A CN201910246516 A CN 201910246516A CN 109970237 A CN109970237 A CN 109970237A
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- decyanation
- liquid
- tailing slurry
- cyaniding
- high pressure
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/18—Cyanides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
Abstract
The present invention relates to a kind of cyaniding tailing slurry decyanation processing methods, belong to pollutant process method in environment protection field.Carrying out washing treatment is separated by solid-liquid separation including cyaniding tailing slurry and the decyanation of high pressure washing liquid handles two units, cyaniding tailing slurry is after being separated by solid-liquid separation carrying out washing treatment cell processing, the pressing filtering liquid and stripping liquid of generation are back to cyaniding mineral processing production process, it can ensure cyanidation technology mineral processing production watering balance, recycle the valuable metals such as the gold, silver in Tailings Slurry, reduce the reagent consumptions such as Cymag, the calcium oxide in cyaniding production procedure, the filter-press residues of output reach Tailings Dam disposition or using pollution control technology requirements, make the legal disposition of cyanidation tailings or utilization；Cleaning solution returns to cyaniding tailing slurry and is separated by solid-liquid separation carrying out washing treatment unit with positive facilitation after efficient decyanation treatment agent processing, have many advantages, such as that treatment effeciency height, high treating effect, processing cost is low, occupied area is few, administers in market and have broad application prospects in cyaniding tailing slurry.
Description
Technical field
The present invention relates to pollutant process method in environment protection field, in particular to a kind of gold mine cyaniding tailing slurry processing
Method.
Background technique
Currently, China's overwhelming majority gold manufacturing enterprises are still using Cyanide Process at present, in the same of golden production
When accumulate a large amount of cyanogen-containing tailing, with the development of Cyanide Process technology, subsidiary solid waste problem is also increasingly shown
Come, (2016 editions) publications especially in June, 2016 " National Hazard waste register " " will carry out gold ore mistake using cyanide
The cyanidation tailings generated in journey " are set to hazardous waste.Chinese Ministry of Environmental Protection's in March, 2018 publication implements " gold industry cyanogen slag pollution control
Technical specification processed " (HJ 943-2018), new standard is proposed to the cyaniding tailing disposition using cyanidation technology manufacturing enterprise and is wanted
It asks.Gold mine enterprise, the country is generally using the measure for directly carrying out decyanation processing to cyaniding tailing slurry, the method for processing at present
The broken cyanide treatment process that Pomolio-Celdecor process, Yin Kefa, hydrogen peroxide method etc. are traditional is mostly used, that there are treatment effeciencies is low, processing cost is high,
The technical requirements that " gold industry cyanogen slag pollution control technology specification " (HJ 943-2018) cannot be stably reached, make cyaniding tailing
The difficult problem of environmental protection for being treated as the cyanidation technology manufacturing enterprise survival and development of slurry.
Summary of the invention
The present invention provides a kind of cyaniding tailing slurry decyanation processing method, and that there are treatment effeciencies is low, processing cost is high to solve,
It the problem of technical requirements of " gold industry cyanogen slag pollution control technology specification " (HJ 943-2018) cannot be stably reached, provides
A kind of high treating effect, treatment effeciency be high, stable cyaniding tailing slurry decyanation treatment process.
The technical solution adopted by the present invention is that, including the following steps:
(1) cyaniding tailing slurry is separated by solid-liquid separation carrying out washing treatment: cyaniding tailing slurry is pumped into the pressure with washing, stripping function
Filters pressing, stripping and high pressure washing, the pressing filtering liquid and stripping liquid of generation are carried out in filter and is back to cyaniding mineral processing production process, are guaranteed
Industrial water, recycles valuable metal element, and the high pressure washing liquid of generation enters next step process flow and carries out decyanation processing, high pressure
Filter-press residues after washing reach the disposition of " gold industry cyanogen slag pollution control technology specification " (HJ 943-2018) Tailings Dam or utilize
Pollution control technology requirement；
(2) decyanation of high pressure washing liquid is handled: high pressure washing liquid being pumped into stirred tank, efficient decyanation treatment agent is added
Stirring or Air Exposure, processing time are 0.5~2h, and treated that high pressure washing liquid is back to that cyaniding tailing slurry solid-liquid divides for decyanation
From carrying out washing treatment unit, used as high-pressure wash water.
In step (1) of the present invention, the process sequences of filters pressing, stripping and high pressure washing can be according in cyaniding tailing slurry
Cyanide content and the complexity of separating, washing decyanation carry out repeatedly setting, and the filter-press residues after guaranteeing washing reach " gold row
Industry cyanogen slag pollution control technology specification " (HJ 943-2018) Tailings Dam is disposed or utilization pollution control technology requirement.
In step (2) of the present invention, efficient decyanation treatment agent is sodium sulfite, copper sulphate, sodium peroxydisulfate, sulfuric acid Asia
Iron and zinc sulfate are 8:(1~2 according to molar ratio): (1~2): (1~5): the ratio of (1~5) is uniformly mixed and forms.
In step (2) of the present invention, efficient decyanation treatment agent with solid or be made into 5%~20% mass concentration liquid
Body is added.
Beneficial effects of the present invention:
The method of the present invention is separated by solid-liquid separation carrying out washing treatment by cyaniding tailing slurry and the decyanation of high pressure washing liquid handles two unit structures
At for cyaniding tailing slurry after being separated by solid-liquid separation carrying out washing treatment cell processing, the pressing filtering liquid and stripping liquid of generation are back to cyaniding ore dressing
Production procedure can ensure cyanidation technology mineral processing production watering balance, recycle the valuable metals such as the gold, silver in Tailings Slurry, reduce cyanogen
Change reagent consumptions, the filter-press residues of output such as Cymag, the calcium oxide in production procedure and reaches " gold industry cyanogen slag contamination control skill
Art specification " (HJ 943-2018) Tailings Dam is disposed or utilization pollution control technology requirement, make the legal disposition of cyanidation tailings or benefit
With；Efficient decyanation treatment agent processing high pressure washing liquid effect is good, and cleaning solution returns to cyaniding tailing slurry separation of solid and liquid and washes after processing
Washing processing unit has positive facilitation, and the present invention, which handles cyaniding tailing slurry, has treatment effeciency height, high treating effect, processing
The advantages that expense is low, occupied area is few, administers in market in cyaniding tailing slurry and has broad application prospects.
Specific embodiment
Embodiment 1
Include the following steps:
(1) cyaniding tailing slurry is separated by solid-liquid separation carrying out washing treatment: cyaniding tailing slurry is pumped into the pressure with washing, stripping function
Filters pressing, stripping and high pressure washing, the pressing filtering liquid and stripping liquid of generation are carried out in filter and is back to cyaniding mineral processing production process, are guaranteed
Industrial water, recycles valuable metal element, and the high pressure washing liquid of generation enters next step process flow and carries out decyanation processing, high pressure
Filter-press residues after washing reach the disposition of " gold industry cyanogen slag pollution control technology specification " (HJ 943-2018) Tailings Dam or utilize
Pollution control technology requirement；
The process sequences of filters pressing, stripping and high pressure washing can be according to the cyanide content and separating, washing in cyaniding tailing slurry
The complexity of decyanation, which carries out repeatedly setting, can set single stripping if cyanide content is lower or separating, washing decyanation is easier to
With high pressure washing, or only set the two in one；If cyanide content is higher or separating, washing decyanation is more difficult, it can set and repeatedly blow
De- and high pressure washing, the filter-press residues after guaranteeing washing reach " gold industry cyanogen slag pollution control technology specification " (HJ 943-
2018) pollution control technology requirement is disposed or utilized to Tailings Dam；
(2) decyanation of high pressure washing liquid is handled: high pressure washing liquid being pumped into stirred tank, efficient decyanation treatment agent is added
Stirring or Air Exposure, processing time are 0.5h, and treated that high pressure washing liquid is back to that cyaniding tailing slurry is separated by solid-liquid separation for decyanation
Carrying out washing treatment unit, uses as high-pressure wash water；
The efficient decyanation treatment agent is sodium sulfite, copper sulphate, sodium peroxydisulfate, ferrous sulfate and zinc sulfate, according to
The ratio that molar ratio is 8:1:1:1:1, which is uniformly mixed, to be formed, and definite ratio is according to cyanide, the thiocyanation in high pressure washing liquid
Object, the composition of heavy metal and concentration determine, if the free cyanide, rhodanide content in total cyanide are higher, can it is appropriate on
Adjust sodium sulfite ratio, if the complex cyanide, content of beary metal in total cyanide are higher, can suitably raise ferrous sulfate and
The ratio of zinc sulfate；
Efficient decyanation treatment agent is with solid or is made into 5% mass concentration liquid and is added, and additional amount is according to high pressure washing
Depending on the content of total cyanide in liquid, the high additional amount of the content of total cyanide is big, and the low additional amount of the content of total cyanide is few.
Embodiment 2
Include the following steps:
(1) cyaniding tailing slurry is separated by solid-liquid separation carrying out washing treatment: cyaniding tailing slurry is pumped into the pressure with washing, stripping function
Filters pressing, stripping and high pressure washing, the pressing filtering liquid and stripping liquid of generation are carried out in filter and is back to cyaniding mineral processing production process, are guaranteed
Industrial water, recycles valuable metal element, and the high pressure washing liquid of generation enters next step process flow and carries out decyanation processing, high pressure
Filter-press residues after washing reach the disposition of " gold industry cyanogen slag pollution control technology specification " (HJ 943-2018) Tailings Dam or utilize
Pollution control technology requirement；
The process sequences of filters pressing, stripping and high pressure washing can be according to the cyanide content and separating, washing in cyaniding tailing slurry
The complexity of decyanation, which carries out repeatedly setting, can set single stripping if cyanide content is lower or separating, washing decyanation is easier to
With high pressure washing, or only set the two in one；If cyanide content is higher or separating, washing decyanation is more difficult, it can set and repeatedly blow
De- and high pressure washing, the filter-press residues after guaranteeing washing reach " gold industry cyanogen slag pollution control technology specification " (HJ 943-
2018) pollution control technology requirement is disposed or utilized to Tailings Dam.
(2) decyanation of high pressure washing liquid is handled: high pressure washing liquid being pumped into stirred tank, efficient decyanation treatment agent is added
Stirring or Air Exposure, processing time are 1.5h, and treated that high pressure washing liquid is back to that cyaniding tailing slurry is separated by solid-liquid separation for decyanation
Carrying out washing treatment unit, uses as high-pressure wash water；
The efficient decyanation treatment agent is sodium sulfite, copper sulphate, sodium peroxydisulfate, ferrous sulfate and zinc sulfate, according to
The ratio that molar ratio is 8:1.5:1.5:3:3, which is uniformly mixed, to be formed, and definite ratio is according to cyanide, the sulphur cyanogen in high pressure washing liquid
Compound, the composition of heavy metal and concentration are determining, can be appropriate if the free cyanide, rhodanide content in total cyanide are higher
The ratio of up-regulation sodium sulfite can suitably raise ferrous sulfate if the complex cyanide, content of beary metal in total cyanide are higher
With the ratio of zinc sulfate；
Efficient decyanation treatment agent is with solid or is made into 12% mass concentration liquid and is added, and additional amount is according to high pressure washing
Depending on the content of total cyanide in liquid, the high additional amount of the content of total cyanide is big, and the low additional amount of the content of total cyanide is few.
Embodiment 3
Include the following steps:
(1) cyaniding tailing slurry is separated by solid-liquid separation carrying out washing treatment: cyaniding tailing slurry is pumped into the pressure with washing, stripping function
Filters pressing, stripping and high pressure washing, the pressing filtering liquid and stripping liquid of generation are carried out in filter and is back to cyaniding mineral processing production process, are guaranteed
Industrial water, recycles valuable metal element, and the high pressure washing liquid of generation enters next step process flow and carries out decyanation processing, high pressure
Filter-press residues after washing reach the disposition of " gold industry cyanogen slag pollution control technology specification " (HJ 943-2018) Tailings Dam or utilize
Pollution control technology requirement；
The process sequences of filters pressing, stripping and high pressure washing can be according to the cyanide content and separating, washing in cyaniding tailing slurry
The complexity of decyanation, which carries out repeatedly setting, can set single stripping if cyanide content is lower or separating, washing decyanation is easier to
With high pressure washing, or only set the two in one；If cyanide content is higher or separating, washing decyanation is more difficult, it can set and repeatedly blow
De- and high pressure washing, the filter-press residues after guaranteeing washing reach " gold industry cyanogen slag pollution control technology specification " (HJ 943-
2018) pollution control technology requirement is disposed or utilized to Tailings Dam.
(2) decyanation of high pressure washing liquid is handled: high pressure washing liquid being pumped into stirred tank, efficient decyanation treatment agent is added
Stirring or Air Exposure, processing time are 0.5~2h, and treated that high pressure washing liquid is back to that cyaniding tailing slurry solid-liquid divides for decyanation
From carrying out washing treatment unit, used as high-pressure wash water；
The efficient decyanation treatment agent is sodium sulfite, copper sulphate, sodium peroxydisulfate, ferrous sulfate and zinc sulfate, according to
The ratio that molar ratio is 8:2:2:5:5, which is uniformly mixed, to be formed, and definite ratio is according to cyanide, the thiocyanation in high pressure washing liquid
Object, the composition of heavy metal and concentration determine, if the free cyanide, rhodanide content in total cyanide are higher, can it is appropriate on
Adjust sodium sulfite ratio, if the complex cyanide, content of beary metal in total cyanide are higher, can suitably raise ferrous sulfate and
The ratio of zinc sulfate；
Efficient decyanation treatment agent is with solid or is made into 20% mass concentration liquid and is added, and additional amount is according to high pressure washing
Depending on the content of total cyanide in liquid, the high additional amount of the content of total cyanide is big, and the low additional amount of the content of total cyanide is few.
The present invention is further illustrated by specific example below.
Certain gold mine sludge containing cyanogens, major pollutants ingredient are shown in Table 1, and the analysis of cyanidation tailings Leaching the results are shown in Table
2, it can be seen that by data in table, major pollutants are cyanide, COD, rhodanide etc. in sludge containing cyanogens, and containing a certain amount of
The valuable metal ions such as gold, copper.
1 sludge containing cyanogens pollutant component of table analyzes result
2 cyanidation tailings Leaching of table analyzes result
It is handled using cyaniding tailing slurry decyanation treatment process, cyaniding tailing slurry is pumped into washing, stripping function first
Filters pressing, stripping and high pressure washing are carried out in the filter press of energy, process sequences are that " stripping-high pressure washing-of filters pressing-is secondary
Stripping ", as shown in table 3, high pressure washing liquid decyanation treatment process operating parameter is as shown in table 4 for run parameter setting.
3 cyaniding tailing slurry of table is separated by solid-liquid separation carrying out washing treatment operating parameter table
4 high pressure washing liquid decyanation of table handles operating parameter table
Cyaniding tailing slurry is separated by solid-liquid separation the pressing filtering liquid that carrying out washing treatment generates and stripping liquid is back to cyaniding mineral processing production process,
Guarantee industrial water, by production procedure recycling gold, copper valuable metal element, the filter-press residues Leaching analysis result of output is shown in
Table 5 reaches " gold industry cyanogen slag pollution control technology specification " (HJ 943-2018) Tailings Dam disposition pollution control technology and wants
It asks.
5 filter-press residues Leaching of table analyzes result mg/L
High pressure washing liquid is handled through efficient decyanation treatment agent, and total cyanide content is down to 16.41mg/ by 189.5mg/L
L, total cyanide removal efficiency reach 91.34%.Treated that cleaning solution is back to that cyaniding tailing slurry is separated by solid-liquid separation washup for decyanation
Unit is managed, is used as high-pressure wash water.
Claims (4)
1. a kind of cyaniding tailing slurry decyanation processing method, characterized in that it comprises the following steps:
(1) cyaniding tailing slurry is separated by solid-liquid separation carrying out washing treatment: cyaniding tailing slurry is pumped into the filter press with washing, stripping function
Interior progress filters pressing, stripping and high pressure washing, the pressing filtering liquid and stripping liquid of generation are back to cyaniding mineral processing production process, guarantee production
With water, valuable metal element is recycled, the high pressure washing liquid of generation enters next step process flow and carries out decyanation processing, high pressure washing
Filter-press residues afterwards reach the disposition of " gold industry cyanogen slag pollution control technology specification " (HJ943-2018) Tailings Dam or utilize pollution
Control technology requirement；
(2) decyanation of high pressure washing liquid is handled: high pressure washing liquid being pumped into stirred tank, efficient decyanation treatment agent stirring is added
Or Air Exposure, processing time are 0.5~2h, treated that high pressure washing liquid is back to that cyaniding tailing slurry separation of solid and liquid is washed for decyanation
Processing unit is washed, is used as high-pressure wash water.
2. a kind of cyaniding tailing slurry decyanation processing method according to claim 1, it is characterised in that: in the step (1),
The process sequences of filters pressing, stripping and high pressure washing can be according to the difficulty of cyanide content and separating, washing decyanation in cyaniding tailing slurry
Easy degree carries out repeatedly setting, and the filter-press residues after guaranteeing washing reach " gold industry cyanogen slag pollution control technology specification "
(HJ943-2018) pollution control technology requirement is disposed or utilized to Tailings Dam.
3. a kind of cyaniding tailing slurry decyanation processing method according to claim 1, it is characterised in that: in the step (2),
Efficient decyanation treatment agent is sodium sulfite, copper sulphate, sodium peroxydisulfate, ferrous sulfate and zinc sulfate, is 8:(1 according to molar ratio
~2): (1~2): (1~5): the ratio of (1~5) is uniformly mixed and forms.
4. a kind of cyaniding tailing slurry decyanation processing method according to claim 3, it is characterised in that: in the step (2),
Efficient decyanation treatment agent is with solid or is made into 5%~20% mass concentration liquid and is added.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112058882A (en) * | 2020-08-22 | 2020-12-11 | 长春黄金研究院有限公司 | Closed pile ecological restoration method for gold ore heap leaching field |
| CN112777720A (en) * | 2020-12-23 | 2021-05-11 | 柯柏友 | Efficient detoxification method for cyanogen-containing material |
| CN113754042A (en) * | 2021-08-27 | 2021-12-07 | 内蒙古金陶股份有限公司 | Decyanation treatment method and system for cyanided tailings |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716516A (en) * | 2017-10-31 | 2018-02-23 | 长春黄金研究院 | A kind of cyanide minimizing technology of cyanidation tailings |
| CN108147578A (en) * | 2017-12-08 | 2018-06-12 | 长春黄金研究院 | A kind of processing method of sludge containing cyanogens |
| CN108149027A (en) * | 2017-12-08 | 2018-06-12 | 长春黄金研究院 | A kind for the treatment of agent and take off processing method using the cyanogen-containing tailing wash heat of the medicament |
-
2019
- 2019-03-28 CN CN201910246516.7A patent/CN109970237A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716516A (en) * | 2017-10-31 | 2018-02-23 | 长春黄金研究院 | A kind of cyanide minimizing technology of cyanidation tailings |
| CN108147578A (en) * | 2017-12-08 | 2018-06-12 | 长春黄金研究院 | A kind of processing method of sludge containing cyanogens |
| CN108149027A (en) * | 2017-12-08 | 2018-06-12 | 长春黄金研究院 | A kind for the treatment of agent and take off processing method using the cyanogen-containing tailing wash heat of the medicament |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112058882A (en) * | 2020-08-22 | 2020-12-11 | 长春黄金研究院有限公司 | Closed pile ecological restoration method for gold ore heap leaching field |
| CN112777720A (en) * | 2020-12-23 | 2021-05-11 | 柯柏友 | Efficient detoxification method for cyanogen-containing material |
| CN113754042A (en) * | 2021-08-27 | 2021-12-07 | 内蒙古金陶股份有限公司 | Decyanation treatment method and system for cyanided tailings |
| CN113754042B (en) * | 2021-08-27 | 2023-09-22 | 内蒙古金陶股份有限公司 | Decyanation treatment method and system for cyanide tailings |
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Application publication date: 20190705 |