CN103103564A - Technology for extracting gold from seawater - Google Patents
Technology for extracting gold from seawater Download PDFInfo
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- CN103103564A CN103103564A CN2011103576349A CN201110357634A CN103103564A CN 103103564 A CN103103564 A CN 103103564A CN 2011103576349 A CN2011103576349 A CN 2011103576349A CN 201110357634 A CN201110357634 A CN 201110357634A CN 103103564 A CN103103564 A CN 103103564A
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- gold
- seawater
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- technology
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000010931 gold Substances 0.000 title claims abstract description 58
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 58
- 239000013535 sea water Substances 0.000 title claims abstract description 39
- 238000005516 engineering process Methods 0.000 title abstract description 5
- 230000005684 electric field Effects 0.000 claims abstract description 5
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 13
- 150000002500 ions Chemical class 0.000 abstract description 8
- 238000000605 extraction Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 239000011888 foil Substances 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- 239000000284 extract Substances 0.000 description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 235000002020 sage Nutrition 0.000 description 1
- 235000019600 saltiness Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
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Abstract
The invention relates to a technology for extracting gold from seawater, and belongs to the field of chemical industry/metallurgy. According to the technology, the direction and speed of ion movement are adjusted through an external electric field, and electrolysis is performed at the same time, so that the gold in the seawater can be economically and effectively detected and extracted; the seawater is introduced into a water supply room; the seawater in the water supply room is communicated to a gold extraction room; the gold extraction room is a cuboid insulated container, and the seawater is guided into the container from one end of the container and guided out of the container from the other end of the container; a stainless steel plate is arranged in the center of the container along the flowing direction of the seawater, is used as an electrode plate and is connected with a direct-current power supply; tin foils are pasted on two sides outside the gold extraction room and are connected with a positive electrode and a negative electrode respectively; and under the action of the external electric field, the moving direction of the ions in the seawater is changed, the moving speed is increased, positive and negative ions move towards opposite electrode directions respectively, gold positive ions are accumulated on a negative electrode plate to obtain the gold, and the gold is separated from the electrode plate through melting.
Description
Technical field
Chemical industry; Metallurgical
Technical background
Containing gold in seawater has been undisputable fact.World ocean almost accounted for earth surface long-pending 71%.In this wide waters, all mineral in land are arranged.Every liter of seawater contains 35 gram mineral substance.And the mineral wealth of ocean are also in continuous increase, because the sleet that river and atmospheric layer are fallen is sent to a large amount of chipped materials toward the sea, only the erosion because of the earth's surface has the solid matter of 3,300,000,000 tons to flow into the ocean every year.The throw out that space generates has again nearly 4,000,000 tons.It is estimated, in seawater, the annual mineral quantity that increases surpasses the total amount of the resource of exploiting on the earth's surface, can guarantee that the mankind are in the reasonable demand of good centuries from now on.Calculate according to the Moscow State University brainstrust, if contained gold in seawater is all extracted, now tellurian everyone approximately can spread out 1.2 kilograms.The percentage that gold accounts for seawater weight is 4 * 10
-10(USSR (Union of Soviet Socialist Republics) A.N Aleksandr Vinogradov nineteen forty-four data); Approximately containing 7,200,000,000 kilograms of gold (7,200,000 tons) in seawater, is more than 30 times of land gold reserve.Current, under normal circumstances, the whole world is produced gold per year and is about 2500 tons of left and right, and demand is 3000 tons of left and right.The insider points out, the possibility of the large reserves gold mine that exploration now makes new advances is less.The global gold of exploiting out is approximately 150,000 tons at present, and the stock gol of various countries Central Bank approximately has 40,000 tons, and individual's deposit approximately has more than 30,000 ton.The whole world has verified still that unquarried gold reserve 70,000 tons of left and right, if according to the speed of exploiting 2500 tons every year, did not go out 25 years, and on the earth, the gold on land will be exploited totally.China produces more than 200 ton of gold now per year.It is more than 6000 tons that present China accumulative total is verified gold reserve.China's gold output was 240 tons in 2005, also can only exploit 25 years by this speed.
Over 100 years, the various countries scientist is seeking the way of extracting seawater gold always, and result is unsatisfactory.But people can reclaim gold from electroplating effluent, and this just extracts gold from the sea Technology Ways to us is provided.
People one are to thinking that China's marine site seawater does not contain gold.From 1991 so far, I once in the Xingcheng of China, the marine sites such as the She Kou in Dalian, Lvshun, Qinhuangdao, Weihai, Yantai, Shenzhen and Tai Pang Wan, Zhuhai, Haikou, Sanya, the North Sea, Zhanjiang, Xiamen; The Malay Strait of Malacca abroad, the sage of Singapore washes the sand, and the test that extracts gold from the sea was done in the marine sites such as Canadian Vancouver, Halifax.Consequently, in these marine sites, only have the seawater Gold Content in marine site, Xingcheng, Liaoning, Tai Pang Wan marine site, Shenzhen and She Kou marine site higher, and have extraction value.We successively carried out more than 20 sampling to the seawater in Tai Pang Wan marine site, Shenzhen and She Kou marine site, and more than 10 sampling successively carried out in the marine site, Xingcheng.Through Guangzhou Research Institute of Nonferrous Metals analyzing and testing Spot detection, Tai Pang Wan marine site, Shenzhen and She Kou marine site seawater Gold Content are every cubic metre of seawater 21.32mg (the gold amount that can extract in one cubic metre of seawater with our method).Seawater is put forward the price that golden economic benefit depends mainly on Gold Content and the gold of seawater.Because the Gold Content difference of seawater is very large, so the difference of its economic benefit is also very large, in general, with this seawater gold extracting method that we provide, return rate can not be less than 10 times of input.Over nearly 100 years, someone attempts to extract gold from the sea always, and the one, because do not find suitable marine site, the 2nd, because there is no suitable method, and fail.
Summary of the invention
Can extract gold in seawater with ionization/electrolytic process, adjust direction and the speed of ion motion by extra electric field, carry out simultaneously electrolysis and can survey cost-effectively and the gold that extracts in seawater.
We have now obtained a kind of cost-effective method that extracts gold from the sea through 20 years of researches, and this method equipment is simple, and operational safety is energy-conservation, free from environmental pollution, the production less investment, and cost is low.The mode that can be designed to gold dredger is produced, and also seawater can be imported to the land factory building, does not need exploitated ore, also without any need for sorbent material.
Extract gold from this method and have following characteristics: equipment investment is little; Operation cost is low; Purposes is wide, both can produce with this method, again can be with the gold content in this method detection seawater; High efficiency can obtain again other products when obtaining the various precious metals such as gold; Quality better, fineness of gold is high; Pollution-free; Economize energy consumption; Equipment is simple; Operational safety; Maintenance of the equipment is simple, convenient, need not frequent maintenance.
Embodiment
Seawater is imported water supply chamber.The seawater of water supply chamber is communicated to the gold extraction chamber.The gold extraction chamber is a rectangular parallelepiped insulating vessel, with the top importing of seawater from an end of container, derives from the below of the other end.The both sides of central coastal current direction are installed stainless steel plate and are connected with direct supply as battery lead plate in container, stick tinfoil paper in the both sides of the outside of gold extraction chamber, are connected with positive and negative electrode respectively.Under the effect of extra electric field, the ion of carrying in the seawater of golden chamber has changed direction of motion, has strengthened movement velocity, negative ions is respectively to its opposite electrode direction motion, the gold positive ion can accumulate on negative plate, and obtains gold, gold is separated from pole plate by fusing again.
In electrolytic process, can produce oxygen and hydrogen, they are collected becomes pure fresh water together.
The seawater that process is carried after gold can import in the evaporator room of sea water desaltination again, obtains fresh water.
Improved widely through the saltiness of repeatedly desalinating process seawater afterwards, obtained salt through concentrating.
Below the experimental data at Shenzhen waters:
Polar plate area: 65mm * 100mm * 2 (carrying the polar plate area of gold)
Seawater consumption: 50 liters
Carry the gold time: 120 minutes
Volts DS: 1.5V
Galvanic current: 400mA
Seawater velocity: 0.69g/ second
Obtain gold: 0.082 μ g/mm
2(on the pole plate of 65mm * 100mm * 2, the gold of 0.082 microgram being arranged on the area of each square millimeter), (0.082 μ g/mm on this piece pole plate
2* 65mm * 100mm * 2=1066 μ g) have 1066 microgram gold, 1.066mg (milligram) gold is namely arranged.
Accompanying drawing is analysis report of the present invention.
Claims (1)
1. adjust direction and the speed of ion motion by extra electric field, carry out simultaneously electrolysis and survey and the method for extracting the gold in seawater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103576349A CN103103564A (en) | 2011-11-11 | 2011-11-11 | Technology for extracting gold from seawater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103576349A CN103103564A (en) | 2011-11-11 | 2011-11-11 | Technology for extracting gold from seawater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103103564A true CN103103564A (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103576349A Pending CN103103564A (en) | 2011-11-11 | 2011-11-11 | Technology for extracting gold from seawater |
Country Status (1)
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|---|---|
| CN (1) | CN103103564A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1948558A (en) * | 2005-10-12 | 2007-04-18 | 李诚忠 | Method of extracting gold from sea water |
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2011
- 2011-11-11 CN CN2011103576349A patent/CN103103564A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1948558A (en) * | 2005-10-12 | 2007-04-18 | 李诚忠 | Method of extracting gold from sea water |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130515 |