CN110947512A - Comprehensive recycling method of high-arsenic gold polymetallic ore - Google Patents
Comprehensive recycling method of high-arsenic gold polymetallic ore Download PDFInfo
- Publication number
- CN110947512A CN110947512A CN201911159674.5A CN201911159674A CN110947512A CN 110947512 A CN110947512 A CN 110947512A CN 201911159674 A CN201911159674 A CN 201911159674A CN 110947512 A CN110947512 A CN 110947512A
- Authority
- CN
- China
- Prior art keywords
- gold
- ore
- zinc
- arsenic
- grade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to the technical field of mineral processing engineering, and particularly discloses a comprehensive recycling method of high-arsenic gold polymetallic ore, belonging to the technical field of mineral processing engineering. Aiming at the defects of the prior art for treating the arsenic-containing gold ore, the corresponding treatment scheme is established by combining the characteristics of high arsenic content and low associated valuable metal lead and zinc grade of the ore, and the process flow of firstly floating lead and zinc-gold after grinding and then separating zinc and gold is adopted. The scheme adopts the medicament with better selectivity, has stronger pertinence and less medicament dosage, and has the main advantages of recovering valuable metals in the ore to the maximum extent and simultaneously considering the maximization of the output value of each metal.
Description
Technical Field
The invention belongs to the technical field of mineral processing engineering, and particularly relates to a comprehensive recycling method of high-arsenic gold polymetallic ore.
Background
Gold has good properties and is very widely used. Along with the exploitation of gold mine resources in China, the refractory gold mine accounts for about 1/3 in the current gold mine extraction process, and under the condition, research on arsenic-containing gold mine is very urgent. Arsenic-containing gold ore generally belongs to refractory gold ore, and the development and utilization of the arsenic-containing gold ore are difficult problems worldwide. Arsenopyrite (arsenopyrite), orpiment and realgar are main arsenic minerals in arsenopyrite, the separation difficulty is that gold is closely related to arsenide (main component is arsenopyrite) and pyrite, and gold is often wrapped in a fine particle state or exists between single crystals of arsenopyrite or pyrite (Zhouyuan. high arsenopyrite dearsenification pretreatment technology progress. metal mine.392 (2) (98-101)).
At present, the research on the arsenic-containing gold ore mainly focuses on the aspects of gold and arsenic separation of the arsenic-containing gold ore, leaching treatment of arsenic-containing gold concentrate, gold and arsenic separation agents of the arsenic-containing gold ore and the like.
Disclosure of Invention
The invention provides a comprehensive recycling method of high-arsenic gold polymetallic ore, aiming at the defects of the existing arsenic-containing gold ore processing technology, the process flow of preferentially selecting lead-zinc-gold mixed flotation-zinc-gold separation is established according to the difference of the quality requirements of subsequent smelting on products by combining the characteristics of high arsenic content, associated valuable metal lead and low zinc grade of the ore, and the scheme has the advantages of high comprehensive utilization rate of each valuable metal, low production cost and the like.
In order to meet the purpose, the invention adopts the technical scheme that:
a comprehensive recycling method of high-arsenic gold polymetallic ore comprises the following steps:
(1) the properties of the ore: the lead grade in the ore is 0.45-0.60%, the zinc grade is 0.30-0.40%, the gold grade is 1.50-1.70 g/t, the silver grade is 40.00-50.00 g/t, and the harmful element arsenic grade is 0.80-1.10%;
(2) grinding: preparing raw ore into ore pulp with the ore grinding concentration of 60-65%, adding 3000-5000 g/t lime and 100-300 g/t ferrous sulfate, and grinding, wherein the content of the ore grinding fineness of less than 0.074mm is 70-75%, so that the ore pulp with the mass percentage concentration of 32-37% is obtained;
(3) lead flotation: adding ethionam, diethylamine methanol xanthate, ethyl nipag methyl ethyl thioether ester and second oil into the ore pulp with the mass percentage concentration of 32-37% obtained in the step (2), and performing two times of rough concentration, 2-3 times of fine concentration and 1-2 times of scavenging to obtain lead concentrate and tailing ore pulp with the mass percentage concentration of 30-35%;
(4) zinc and gold mixed flotation: sequentially adding copper sulfate, isoamyl xanthate, diethylamine methanol xanthate, ethyl blackant methyl ethyl thioether ester and second oil in the tailing pulp in the step (3), and obtaining zinc-gold bulk concentrate and tailings after two times of rough concentration, 2-3 times of fine concentration and 1-2 times of scavenging;
(5) separating zinc and gold: and (4) adding lime and calcium hypochlorite into the zinc-gold bulk concentrate obtained in the step (4) to separate zinc and gold, and obtaining zinc concentrate and gold concentrate after 1-time roughing, 2-3-time fine separation and one-time scavenging.
Preferably, aiming at the characteristics of multiple types of useful minerals of raw ores and low grade, the quality standard requirements of smelting on different concentrate products are combined, and the valuable elements are recycled to the maximum extent by adopting the process flow of preferential lead-zinc-gold mixed flotation-zinc-gold separation.
Preferably, in the step (3), 10-25g/t of pulp of ethyl sulfur nitrogen, 5-10g/t of pulp of diethylamine methanol xanthate, 8-12 g/t of pulp of ethyl nigrum methyl ethyl thioether ester and 5-8 g/t of pulp of second oil are respectively added.
Preferably, in the step (4), 150-300g/t of copper sulfate, 40-70g/t of isoamyl xanthate, 10-30g/t of diethylamine methanol xanthate, 10-20 g/t of ethyl blackant methyl ethyl thioether ester and 5-15 g/t of second oil are sequentially added.
Preferably, in the step (5), 500-1500 g/t of lime in ore pulp and 100-300 g/t of calcium hypochlorite in ore pulp are added.
Compared with the existing recovery method of the arsenic-containing gold ore, the method has the following advantages:
(1) the lead flotation adopts a medicament with better selectivity, has stronger pertinence and less medicament consumption;
(2) on the premise of ensuring the qualified grade of the lead concentrate, gold and silver are enriched into the lead concentrate as much as possible, mainly because the valuation coefficients of gold and silver are higher and the values of gold and silver are higher in the lead concentrate;
(3) the zinc grade in the raw ore is lower, the zinc and gold are subjected to mixed flotation and then zinc and gold separation to obtain qualified zinc concentrate, and valuable metals can be recovered to the maximum extent;
(4) as the arsenic contained in the gold concentrate has no influence on smelting, the zinc-gold mixed flotation can improve the recovery rate of gold as much as possible;
(5) according to the technical scheme, valuable metals in the ore are recovered to the greatest extent according to the requirements of subsequent smelting on product quality standards, and meanwhile, the yield maximization of each metal is considered.
Detailed Description
The comprehensive recycling method of the high arsenic gold multi-metal ore of the invention is further explained by combining with the specific embodiment.
Example 1
(1) The properties of the ore: the Gansu ore contains arsenic-gold polymetallic ore, the lead grade in the raw ore is 0.45 percent, the zinc grade is 0.30 percent, the gold grade is 1.50g/t, the silver grade is 40.00g/t, the harmful element arsenic grade is 0.80 percent, and gangue minerals mainly take silicate and calcite as main materials;
(2) grinding: preparing raw ore into ore pulp with the ore grinding concentration of 60%, adding 3000g/t lime and 100g/t ferrous sulfate, and grinding, wherein the content of the ore grinding fineness of less than 0.074mm is 70%, so as to obtain the ore pulp with the mass percentage concentration of 32%;
(3) lead flotation: adding 10g/t of ethyl-sulfur-nitrogen of ore pulp, 5g/t of diethylamine methanol xanthate of ore pulp, 8g/t of ethyl-black-drug methyl ethyl thioether ester and 5g/t of second oil into the ore pulp with the mass percentage concentration of 32% obtained in the step (2), and performing two times of rough concentration, three times of fine concentration and one time of scavenging to obtain lead concentrate and tailing ore pulp with the mass percentage concentration of 30%;
(4) zinc and gold mixed flotation: 150g/t of copper sulfate, 70g/t of isoamyl xanthate, 10g/t of diethylamine methanol xanthate of the ore pulp, 20g/t of ethyl blackant methyl ethyl thioether ester and 15g/t of second oil are sequentially added into the ore pulp of the tailings in the step (3), and zinc-gold mixed concentrate and tailings are obtained after two times of rough concentration, three times of fine concentration and one time of scavenging;
(5) separating zinc and gold: and (4) adding 500g/t of lime and 100g/t of calcium hypochlorite into the zinc-gold mixed concentrate obtained in the step (4) to separate zinc and gold, and obtaining zinc concentrate and gold concentrate after one-time roughing, two-time concentration and one-time scavenging.
Example 2
(1) The properties of the ore: in a polymetallic ore containing arsenic and gold in Xinjiang, the ore has the lead grade of 0.50 percent, the zinc grade of 0.35 percent, the gold grade of 1.60g/t, the silver grade of 45.00g/t and the harmful element arsenic grade of 0.950 percent, and has more types of useful minerals and higher arsenic content.
(2) Grinding: preparing raw ore into ore pulp with the ore grinding concentration of 62%, adding 4000g/t of lime, grinding after adding 200g/t of ferrous sulfate, and grinding 72% of ore pulp with the ore grinding fineness of less than 0.074mm to obtain the ore pulp with the mass percentage concentration of 35%;
(3) lead flotation: adding 18g/t of ethyl-sulfur-nitrogen of ore pulp, 7g/t of diethylamine methanol xanthate of ore pulp, 7g/t of ethyl-black-drug methyl ethyl thioether ester and 6g/t of second oil into the ore pulp with the mass percentage concentration of 35% obtained in the step (2), and performing two times of rough concentration, three times of fine concentration and two times of scavenging to obtain lead concentrate and tailing ore pulp with the mass percentage concentration of 32%;
(4) zinc and gold mixed flotation: adding 225g/t of copper sulfate, 45g/t of isoamyl xanthate, 20g/t of diethylamine methanol xanthate, 15g/t of ethyl blackant methyl ethyl thioether ester and 10g/t of second oil into the tailing pulp in the step (3) in sequence, and obtaining zinc-gold mixed concentrate and tailings after two times of rough concentration, two times of fine concentration and one time of scavenging;
(5) separating zinc and gold: and (4) adding 1000g/t of lime and 200g/t of calcium hypochlorite into the zinc-gold mixed concentrate obtained in the step (4) to separate zinc and gold, and obtaining zinc concentrate and gold concentrate after one-time roughing, two-time concentration and one-time scavenging.
Example 3
(1) The properties of the ore: in some polymetallic ore containing arsenic and gold in Yunnan, the lead grade in the raw ore is 0.60 percent, the zinc grade is 0.40 percent, the gold grade is 1.70g/t, the silver grade is 50.00g/t, the harmful element arsenic grade is 1.10 percent, the variety of useful minerals is more, and the arsenic content is higher.
(2) Grinding: preparing raw ore into ore pulp with the ore grinding concentration of 65%, adding 5000g/t lime and 300g/t ferrous sulfate, and grinding, wherein the content of the ground ore with the fineness of less than 0.074mm is 75%, so as to obtain the ore pulp with the mass percentage concentration of 37%;
(3) lead flotation: adding 25g/t of ethyl-sulfur-nitrogen in the ore pulp, 10g/t of diethylamine methanol xanthate in the ore pulp, 8g/t of ethyl-black-drug methyl ethyl thioether ester and 8g/t of second oil in 37% by mass percentage concentration obtained in the step (2) respectively, and performing rough concentration twice, fine concentration twice and scavenging twice to obtain lead concentrate and tailing ore pulp with 35% by mass percentage concentration;
(4) zinc and gold mixed flotation: adding 300g/t of copper sulfate, 60g/t of isoamyl xanthate, 30g/t of diethylamine methanol xanthate, 10g/t of ethyl blackant methyl ethyl thioether ester and 15g/t of second oil into the tailing pulp in the step (3) in sequence, and obtaining zinc-gold mixed concentrate and tailings after two times of rough concentration, two times of fine concentration and two times of scavenging;
(5) separating zinc and gold: adding lime 1500g/t and calcium hypochlorite 300g/t into the zinc-gold bulk concentrate obtained in the step (4) to separate zinc and gold, and obtaining zinc concentrate and gold concentrate after one roughing, two concentration and one scavenging.
The detailed indexes of the examples are shown in Table 1.
Claims (5)
1. A comprehensive recycling method of high-arsenic gold multi-metal ore is characterized by comprising the following steps:
(1) the properties of the ore: the lead grade in the ore is 0.45-0.60%, the zinc grade is 0.30-0.40%, the gold grade is 1.50-1.70 g/t, the silver grade is 40.00-50.00 g/t, and the harmful element arsenic grade is 0.80-1.10%;
(2) grinding: preparing raw ore into ore pulp with the ore grinding concentration of 60-65%, adding 3000-5000 g/t lime and 100-300 g/t ferrous sulfate, and grinding, wherein the content of the ore grinding fineness of less than 0.074mm is 70-75%, so that the ore pulp with the mass percentage concentration of 32-37% is obtained;
(3) lead flotation: adding ethionam, diethylamine methanol xanthate, ethyl nipag methyl ethyl thioether ester and second oil into the ore pulp with the mass percentage concentration of 32-37% obtained in the step (2), and performing two times of rough concentration, 2-3 times of fine concentration and 1-2 times of scavenging to obtain lead concentrate and tailing ore pulp with the mass percentage concentration of 30-35%;
(4) zinc and gold mixed flotation: sequentially adding copper sulfate, isoamyl xanthate, diethylamine methanol xanthate, ethyl blackant methyl ethyl thioether ester and second oil in the tailing pulp in the step (3), and obtaining zinc-gold bulk concentrate and tailings after two times of rough concentration, 2-3 times of fine concentration and 1-2 times of scavenging;
(5) separating zinc and gold: and (4) adding lime and calcium hypochlorite into the zinc-gold bulk concentrate obtained in the step (4) to separate zinc and gold, and obtaining zinc concentrate and gold concentrate after 1-time roughing, 2-3-time fine separation and one-time scavenging.
2. The comprehensive recycling method of the high arsenic gold polymetallic ore according to claim 1, which is characterized in that: aiming at the characteristics of multiple types of useful minerals and low grade of raw ore, the method adopts the process flow of preferential lead-zinc-gold mixed flotation-zinc-gold separation to maximally recycle valuable elements by combining the quality standard requirements of smelting on different concentrate products.
3. The comprehensive recycling method of the high arsenic gold polymetallic ore according to claim 1, which is characterized in that: in the step (3), 10-25g/t of ammonium sulfate ethyl-sulfur-nitrogen, 5-10g/t of ammonium sulfate diethylamine methanol xanthate, 8-12 g/t of ammonium sulfate ethyl-black methyl ethyl thioether ester and 5-8 g/t of ammonium sulfate second oil are added respectively.
4. The comprehensive recycling method of the high arsenic gold polymetallic ore according to claim 1, which is characterized in that: in the step (4), 150-300g/t of copper sulfate, 40-70g/t of isoamyl xanthate, 10-30g/t of diethylamine methanol xanthate, 10-20 g/t of ethyl blackant methyl ethyl thioether ester and 5-15 g/t of second oil are sequentially added.
5. The comprehensive recycling method of the high arsenic gold polymetallic ore according to claim 1, which is characterized in that: in the step (5), 500-1500 g/t of ore pulp lime and 100-300 g/t of ore pulp calcium hypochlorite are added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911159674.5A CN110947512A (en) | 2019-11-22 | 2019-11-22 | Comprehensive recycling method of high-arsenic gold polymetallic ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911159674.5A CN110947512A (en) | 2019-11-22 | 2019-11-22 | Comprehensive recycling method of high-arsenic gold polymetallic ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110947512A true CN110947512A (en) | 2020-04-03 |
Family
ID=69978226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911159674.5A Pending CN110947512A (en) | 2019-11-22 | 2019-11-22 | Comprehensive recycling method of high-arsenic gold polymetallic ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110947512A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482361A (en) * | 2018-12-12 | 2019-03-19 | 北京矿冶科技集团有限公司 | A kind of method that lead-zinc sulphur oxygen synchronizes flotation |
-
2019
- 2019-11-22 CN CN201911159674.5A patent/CN110947512A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482361A (en) * | 2018-12-12 | 2019-03-19 | 北京矿冶科技集团有限公司 | A kind of method that lead-zinc sulphur oxygen synchronizes flotation |
Non-Patent Citations (5)
| Title |
|---|
| 卢辉畴等: "从某锌矿石中综合回收锌、金生产实践 ", 《黄金》 * |
| 叶从新等: "复杂铅锌矿综合回收金的试验研究及工业实践 ", 《有色金属(选矿部分)》 * |
| 田树国等: "从山西某金矿尾矿中回收金锌试验研究", 《有色金属（选矿部分）》 * |
| 程建国: "复杂铅锑银锌多金属硫化矿浮选分离工艺研究 ", 《有色金属(选矿部分)》 * |
| 鲁军: "尾矿再选回收金锌的试验研究 ", 《有色金属(选矿部分)》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110369122B (en) | Beneficiation method for efficiently recovering high-sulfur gold-copper ore | |
| CN105327771A (en) | Fine grinding and comprehensive recycling beneficiation process of copper-containing sulfur concentrate | |
| CN112474030B (en) | Beneficiation method for copper-nickel sulfide ore | |
| CN111495608A (en) | Flotation process for efficiently recovering lead, zinc and sulfur in multi-metal sulfide ore | |
| CN108176516B (en) | Mineral separation process for kinds of gold-antimony symbiotic ore | |
| CN114471960A (en) | Beneficiation method of gold antimony ore | |
| CN107684972A (en) | A kind of more ore deposits of step further utilization mutually carry the group technology of Results of Gold in Auriferous Ore Samples | |
| CN110787911A (en) | Flotation method for low-grade copper ore and associated gold and silver | |
| CN104772217A (en) | Flotation separation process for mixed copper and lead concentrate | |
| CN110947523B (en) | Collecting agent for recovering copper, lead and zinc minerals from iron ore dressing tailings | |
| CN112892853A (en) | Comprehensive recovery and mineral separation process for wolframite and associated valuable metals of wolframite | |
| CN111790527A (en) | Low-alkali separation method for high-sulfur copper-zinc ore | |
| CN111530638A (en) | Method for deactivating, activating and flotation and recycling zinc sulfide ores in copper-lead flotation tailings | |
| CN110947512A (en) | Comprehensive recycling method of high-arsenic gold polymetallic ore | |
| CN111167613A (en) | Method for comprehensively recovering lead and zinc from sulfur concentrate after lead and zinc separation | |
| CN110813546A (en) | Flotation method of high-calcium-magnesium type oxidized and vulcanized mixed copper ore | |
| CN114749271A (en) | Quality-based grading separation and middling selective regrinding method for lead-zinc sulfide ore containing pyrrhotite | |
| CN115254395A (en) | Method for separating arsenic and sulfur in zinc tailings | |
| CN113019711B (en) | Comprehensive utilization method for separating high-zinc jamesonite concentrate | |
| CN109158216A (en) | A kind of high arsenic high-carbon refractory gold ore efficient flotation separation technique | |
| CN111659531B (en) | Method for flotation separation of lead-zinc sulfide ore containing intergrowth | |
| CN112221719B (en) | Method for improving recovery rate of associated gold from low-grade copper-sulfur ore | |
| CN104772229B (en) | Silver ore middle-low grade association copper recovery process | |
| CN113751180A (en) | Beneficiation method for complex embedded low-grade copper-sulfur ore | |
| CN107159444B (en) | The ore-dressing technique of Zn content in a kind of reduction lead concentrate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200403 |
|
| RJ01 | Rejection of invention patent application after publication |