US20150329934A1 - Dahl Process - Google Patents

Dahl Process Download PDF

Info

Publication number
US20150329934A1
US20150329934A1 US14/278,203 US201414278203A US2015329934A1 US 20150329934 A1 US20150329934 A1 US 20150329934A1 US 201414278203 A US201414278203 A US 201414278203A US 2015329934 A1 US2015329934 A1 US 2015329934A1
Authority
US
United States
Prior art keywords
polymers
mixture
precious metals
metals
microscopic
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.)
Abandoned
Application number
US14/278,203
Inventor
Rulon W. Dahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US14/278,203 priority Critical patent/US20150329934A1/en
Publication of US20150329934A1 publication Critical patent/US20150329934A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/16Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00Obtaining noble metals
    • C22B11/04Obtaining noble metals by wet processes
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/22Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
    • C22B3/24Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition by adsorption on solid substances, e.g. by extraction with solid resins
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Definitions

  • the present invention generally relates to the Dahl Process.
  • the Dahl Process is a process of microscopic mining of precious metals such as gold, silver and platinum using the method of adding environmentally friendly products, thus there is no contamination of the soil.
  • the Dahl Process eliminates leaching using only safe, natural resources for this release of precious metals from soil thus protecting the soil and water sources located in the specified mining location.
  • current techniques are used such as dynamite blasting to separate the ore from the heavy metals.
  • the Dahl Process uses an agitation method to release these heavy metals maintaining the integrity of the heavy metals plus the softer metals which may blow off or dissolve during other current mining processes, thus; retaining a higher yield of precious metals. Smelting is a common practice among mining processes.
  • the high temperature that is required to retrieve this metal melts and dissolves the softer metals such as gold and silver.
  • the Dahl Process is able to extract the heavy metal without dissolving the more soluble metals thus, yielding a higher amount of precious metals as these metals are absorbed by polymers. Tests have concluded these metals are in fact being absorbed and retained by the polymers.
  • the present invention or the Dahl Process provides a microscopic mining system that is both friendly to the environment and allows the mining of microscopic metals that would otherwise be lost during the current mining processes.
  • the first step in this microscopic mining process respectively is to take the excavated head ore from the property which is being excavated and size it down to a predetermined size so that the mining process may begin.
  • a predetermined amount of water shall be added to this head ore and placed in a mixture to be agitated.
  • a predetermined amount of Urea or any similar product shall then be added to the mixture and agitated once again. This mixture must be agitated until the precious metals are then released from the head ore.
  • Polymers are then added to the head ore and precious metal mixture and then agitated until the polymers reach maximum hydration.
  • the polymers are then screened from the solution for dehydration. Dehydration must be in a strictly controlled environment and must not exceed a temperature determined by the inventor.
  • the extraction process now begins adding the dehydrated polymers, and the “flux” which is a mixture consisting of environmentally friendly products such as silver chloride, soda ash, and borax glass adding or subtracting to this flux accordingly what the inventor may see fit to a mixer and mix thoroughly. For heat, place this mixture in a container and cover with a lid. Heat the container, raising the heat very slowly until the heat reaches a predetermined temperature.
  • the polymers shall be taken to a controlled environment where the precious metals shall be extracted from the polymers.
  • FIG. 1 is a schematic diagram depicting the basic system of the present invention.
  • Head Ore 1 shall be excavated from the appropriate mining location and sized down 2 to the pre-determined sample size 3 to begin the mining process.
  • the appropriate amount of water shall be added 4 to the sample to begin the mixture and agitation process 5 leaving a well agitated sample mixture 6 .
  • Urea is then added to the sample 7 and the agitation process 8 begins again.
  • the precious metals 9 begin to release from the head ore mixture.
  • Polymers are then added 10 to the mixture of head ore and precious metals.
  • the agitation process begins again 11 at which time the polymers reach full hydration absorbing the precious metals.
  • the polymers are then screened 12 separating the polymers from the head ore mixture.
  • the polymers are then left out for complete dehydration.
  • the heating process begins.
  • the dehydrated polymers, pre-determined amounts of soda ash, silver chloride and borax glass are added to a container used for heating 13 and mixed thoroughly.
  • the container is then heated, raising the temperature very slowly.
  • the heated sample mixture reaches a predetermined temperature the precious metals begin to accumulate at the bottom of the container 14 in the form of bars.
  • This process salvages specifically gold, silver and platinum where most processes heat at a high temperature burning off the gold and silver in order to obtain the platinum.
  • the bars are taken to a controlled environment or room 15 where acids 17 are used to separate the metals from each other.
  • the dehydrated polymers are taken to a controlled environment or room 16 where the acids 17 are then used to separate the metals from the polymers. Since this takes place in a controlled environment, there is no contamination of natural resources during the Dahl process and this process yields higher claims of each precious metal from the ore.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The Dahl mining system is an environmentally safe, chemical free system that mines microscopic precious metals from head ore adding water and urea agitating this mixture until the precious metals are released from the head ore. Polymers are then added to the mixture and agitated until the polymers reach full hydration. The polymers are then screened from the mixture for the dehydration process. The extraction portion of this process begins by separating the metals from the polymers or bar in a controlled environment or room.

Description

    FIELD OF THE INVENTION
  • The present invention generally relates to the Dahl Process. The Dahl Process is a process of microscopic mining of precious metals such as gold, silver and platinum using the method of adding environmentally friendly products, thus there is no contamination of the soil.
  • BACKGROUND OF THE INVENTION
  • Current mining systems use contaminates to leach or penetrate the soil for release of these precious metals. It is a concern that leaching may affect natural aquifers contaminating natural sources of water. The Dahl Process eliminates leaching using only safe, natural resources for this release of precious metals from soil thus protecting the soil and water sources located in the specified mining location. In platinum mining, current techniques are used such as dynamite blasting to separate the ore from the heavy metals. The Dahl Process uses an agitation method to release these heavy metals maintaining the integrity of the heavy metals plus the softer metals which may blow off or dissolve during other current mining processes, thus; retaining a higher yield of precious metals. Smelting is a common practice among mining processes. If a heavier metal is desired, the high temperature that is required to retrieve this metal melts and dissolves the softer metals such as gold and silver. The Dahl Process is able to extract the heavy metal without dissolving the more soluble metals thus, yielding a higher amount of precious metals as these metals are absorbed by polymers. Tests have concluded these metals are in fact being absorbed and retained by the polymers.
  • BRIEF SUMMARY OF THE INVENTION
  • Accordingly, the present invention or the Dahl Process provides a microscopic mining system that is both friendly to the environment and allows the mining of microscopic metals that would otherwise be lost during the current mining processes. The first step in this microscopic mining process respectively is to take the excavated head ore from the property which is being excavated and size it down to a predetermined size so that the mining process may begin. A predetermined amount of water shall be added to this head ore and placed in a mixture to be agitated. A predetermined amount of Urea or any similar product shall then be added to the mixture and agitated once again. This mixture must be agitated until the precious metals are then released from the head ore. Polymers are then added to the head ore and precious metal mixture and then agitated until the polymers reach maximum hydration. The polymers are then screened from the solution for dehydration. Dehydration must be in a strictly controlled environment and must not exceed a temperature determined by the inventor. The extraction process now begins adding the dehydrated polymers, and the “flux” which is a mixture consisting of environmentally friendly products such as silver chloride, soda ash, and borax glass adding or subtracting to this flux accordingly what the inventor may see fit to a mixer and mix thoroughly. For heat, place this mixture in a container and cover with a lid. Heat the container, raising the heat very slowly until the heat reaches a predetermined temperature. Maintain this temperature until the precious metals accumulate at the bottom of the container, at which time pour the mixture into a trough to expose the accumulated bar of precious metals at the bottom of the container. If the extraction process excludes heating, the polymers shall be taken to a controlled environment where the precious metals shall be extracted from the polymers.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The above and additional features and advantages will become more readily apparent from the following detailed description of the invention taken in conjunction with the drawings in which:
  • FIG. 1 is a schematic diagram depicting the basic system of the present invention.
  • Referring now to FIG. 1, there is shown the environmentally friendly microscopic mining process. Head Ore 1 shall be excavated from the appropriate mining location and sized down 2 to the pre-determined sample size 3 to begin the mining process. The appropriate amount of water shall be added 4 to the sample to begin the mixture and agitation process 5 leaving a well agitated sample mixture 6. Urea is then added to the sample 7 and the agitation process 8 begins again. As the sample mixes, the precious metals 9 begin to release from the head ore mixture. Polymers are then added 10 to the mixture of head ore and precious metals. The agitation process begins again 11 at which time the polymers reach full hydration absorbing the precious metals. The polymers are then screened 12 separating the polymers from the head ore mixture. The polymers are then left out for complete dehydration. The heating process begins. The dehydrated polymers, pre-determined amounts of soda ash, silver chloride and borax glass are added to a container used for heating 13 and mixed thoroughly. The container is then heated, raising the temperature very slowly. When the heated sample mixture reaches a predetermined temperature the precious metals begin to accumulate at the bottom of the container 14 in the form of bars. This process salvages specifically gold, silver and platinum where most processes heat at a high temperature burning off the gold and silver in order to obtain the platinum. The bars are taken to a controlled environment or room 15 where acids 17 are used to separate the metals from each other. If the extraction of the precious metals from the polymers does not require smelting, the dehydrated polymers are taken to a controlled environment or room 16 where the acids 17 are then used to separate the metals from the polymers. Since this takes place in a controlled environment, there is no contamination of natural resources during the Dahl process and this process yields higher claims of each precious metal from the ore.

Claims (1)

I claim:
1. A method of an environmentally safe mining process through extraction of microscopic precious metals for the head ore comprising:
(a) releasing said microscopic precious metals by introducing water and nitrogen based fertilizer into said head ore while agitating the mixture;
(b) introduce the polymers to said mixture and allow said polymers to absorb said precious metals while said agitation process continues;
(c) screen said polymers from said mixture and allow complete dehydration of said polymers;
(d) extraction of said precious metals from said dehydrated polymers now occurs in a controlled setting or room where said precious metals are separated from said dehydrated polymers with the use of chemicals which shall never be introduced into the environment.
US14/278,203 2014-05-15 2014-05-15 Dahl Process Abandoned US20150329934A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/278,203 US20150329934A1 (en) 2014-05-15 2014-05-15 Dahl Process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/278,203 US20150329934A1 (en) 2014-05-15 2014-05-15 Dahl Process

Publications (1)

Publication Number Publication Date
US20150329934A1 true US20150329934A1 (en) 2015-11-19

Family

ID=54538022

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/278,203 Abandoned US20150329934A1 (en) 2014-05-15 2014-05-15 Dahl Process

Country Status (1)

Country Link
US (1) US20150329934A1 (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213600A (en) * 1978-08-07 1980-07-22 Thompson Roy R Jr Silver reclamation apparatus
US4645535A (en) * 1985-08-15 1987-02-24 Little Roger H Method for the recovery of precious metals from ores
US5215575A (en) * 1989-03-07 1993-06-01 Butler Dean R Recovery of gold, silver and platinum group metals with various leachants at low pulp densities
US5961833A (en) * 1997-06-09 1999-10-05 Hw Process Technologies, Inc. Method for separating and isolating gold from copper in a gold processing system
US6274045B1 (en) * 1995-05-19 2001-08-14 Lawrence Kreisler Method for recovering and separating metals from waste streams
US6337056B1 (en) * 1999-10-04 2002-01-08 Riccardo Reverso Process for refining noble metals from auriferous mines
US20030039605A1 (en) * 2001-08-21 2003-02-27 Edward Ramsay Process for the recovery of precious metals from fine carbon
US20120067170A1 (en) * 2009-04-24 2012-03-22 Precious Metals Recovery Pty Ltd Extraction of gold from cathode associated gold concentrates
US20120144959A1 (en) * 2009-07-01 2012-06-14 Precious Metals Recovery Pty Ltd Smelting method
WO2012141607A1 (en) * 2011-03-09 2012-10-18 Malusel Viorel Alexandru Gold and silver extraction technology
WO2013029785A1 (en) * 2011-09-01 2013-03-07 Dedek Petr Method for the removal and recovery of metals and precious metals from substrates

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213600A (en) * 1978-08-07 1980-07-22 Thompson Roy R Jr Silver reclamation apparatus
US4645535A (en) * 1985-08-15 1987-02-24 Little Roger H Method for the recovery of precious metals from ores
US5215575A (en) * 1989-03-07 1993-06-01 Butler Dean R Recovery of gold, silver and platinum group metals with various leachants at low pulp densities
US6274045B1 (en) * 1995-05-19 2001-08-14 Lawrence Kreisler Method for recovering and separating metals from waste streams
US5961833A (en) * 1997-06-09 1999-10-05 Hw Process Technologies, Inc. Method for separating and isolating gold from copper in a gold processing system
US6337056B1 (en) * 1999-10-04 2002-01-08 Riccardo Reverso Process for refining noble metals from auriferous mines
US20030039605A1 (en) * 2001-08-21 2003-02-27 Edward Ramsay Process for the recovery of precious metals from fine carbon
US20120067170A1 (en) * 2009-04-24 2012-03-22 Precious Metals Recovery Pty Ltd Extraction of gold from cathode associated gold concentrates
US20120144959A1 (en) * 2009-07-01 2012-06-14 Precious Metals Recovery Pty Ltd Smelting method
WO2012141607A1 (en) * 2011-03-09 2012-10-18 Malusel Viorel Alexandru Gold and silver extraction technology
US20130341203A1 (en) * 2011-03-09 2013-12-26 Viorel Alexandru Malusel Gold and silver extraction technology
WO2013029785A1 (en) * 2011-09-01 2013-03-07 Dedek Petr Method for the removal and recovery of metals and precious metals from substrates
US20140165786A1 (en) * 2011-09-01 2014-06-19 Petr Dedek Method for the removal and recovery of metals and precious metals from substrates

Similar Documents

Publication Publication Date Title
Luong et al. Factors affecting the extraction of lithium from lepidolite
Panda et al. Leaching of rare earth metals (REMs) from Korean monazite concentrate
Appel et al. Mercury-free gold extraction using borax for small-scale gold miners
Zhou et al. Extraction of rubidium from kaolin clay waste: Process study
CN105177312A (en) Method for extracting potassium from shale containing potassium
Wan et al. Synthesis of scheelite from sodium tungstate solution by calcium hydroxide addition
CN103243222A (en) Modified lime sulphur and application thereof in gold leaching technology
Romer et al. Mobilization of tin during continental subduction-accretion processes
Stoffersen et al. Introduction of mercury-free gold extraction to small-scale miners in the Cabo Delgado province in Mozambique
US20150329934A1 (en) Dahl Process
CN104805311B (en) Method for extracting rubidium from rubidium-containing feldspar and co-producing silicon fertilizer
CN108034843A (en) The method of Leaching Uranium from uranium-bearing waste residue
KR20170035898A (en) Manganese ore beneficiation process
US20160130682A1 (en) Methods For Recovering Cesium Or Rubidium Values From Ore Or Other Materials
Shakiba et al. Application of deep eutectic solvents (DESs) as a green lixiviant for extraction of rare earth elements from caustic-treated monazite concentrate
Popescu et al. Kinetic models based on analysis of the dissolution of copper, zinc and brass from WEEE in a sodium persulfate environment
CN105463196B (en) A kind of Pb-Zn tailings Roasting And Leaching handling process
CN103820633B (en) A kind for the treatment of process containing rubidium ore
CN105063381A (en) Process for treating rare earth waste with low rare earth content through optimum solubilizing-extraction edulcoration enrichment method
RU2568802C2 (en) Method of processing of oolitic iron ore, and device for its implementation
Andini et al. Oxidative fusion and alkaline leaching for manganese extraction from low grade silicate ore
Büyükburç et al. Extraction of lithium from boron clays by using natural and waste materials and statistical modelling to achieve cost reduction
US1936002A (en) -process f
CN103752597B (en) A kind of method utilizing fixative synergy heat treatment heavy metal in soil
Yang et al. Solubility of ammonium paratungstate in aqueous diammonium phosphate and ammonia solution and its implications for a scheelite leaching process

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION