XinHai Mining

Product Introduction

    • Microwave pretreatment of a double refractory gold ore

      The microwave roasting of a double refractory gold ore was investigated. The TGA results showed that the three major reactions involved in the roasting process were; oxidation of pyrite, oxidation of the carbonaceous matter and the decomposition of carbonates.

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    • How to Smelt Gold: 5 Steps to Real Gold Ingots

      How to Smelt Gold: A Simple Guide to Help You Smelt Gold at Home. Whether you want to smelt some gold pieces into a beautiful jewelry or simply wondering how to smelt gold, then you should know that there are a few ways to do it without any professional intervention.

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    • Amazon.com: PMC Supplies LLC Ceramic Crucible Anhydrous Flux

      This torch kit includes a 100 gram ceramic crucible (withstands temperatures up to 2500°F), 4 oz of anhydrous casting flux, small whip tongs, a 5/16 diameter x 12 length graphite stir rod, plus a gold graphite combo ingot mold with 1/4 T. oz, 1/2 T. oz, and 1 T. oz capacities.

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    • microwave gold smelter - Page 2 - Gold Refining Forum.com

      The sellers of the microwave gold kiln will tell you that not just any 1200 watt microwave will work. The quot;inverterquot; type of microwave WILL NOT WORK. If you stop and think about it, a microwave oven is just funneling electrical energy into the cooking chamber. The firebricks which build the microwave gold oven act as an insulator.

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    • How to Melt Gold at Home

      The crucible is what holds the gold while it is being heated, which is placed in the kiln, with the lid put on the top, and then placed in the microwave. Before starting, the gold, whether it is gold dust, nuggets, or broken jewelry, has to be mixed with a medium called flux. Only use flux approved for microwave use when working with this method.

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    • A Poor Man39;s Method of Smelting Gold | Sciencing

      May 22, 2018 · You can remove the most common metals found in gold ore (copper, zinc and lead) using elements that bond with oxygen at lower temperatures than gold. This oxidation process will make copper oxide, zinc oxide and lead oxide all of which are less dense than pure gold and will float to the top of your crucible allowing the slag to be sloughed off.

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    • Crucibles For Melting Gold Silver Copper Aluminum Platinum

      In addition to crucibles designed specifically for furnaces, PMC Supplies offers a full line of foundry crucibles for propane and gas forges, ceramic crucibles dishes for small scale and torch melting. Our crucibles are ideal for most metals, including gold, silver, copper, brass, aluminum, tin, platinum, and more.

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    • Microwave Gold Melt Pt1 - YouTube

      Jan 21, 2013 · The brown gold powder is mixed with common borax, crushed quartz that has been purified with boiling HCL, and KNO3 potatsium nitrate from stump remover. These items are mixed and placed inside low

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    • Poor Man39;s Microwave Smelter - YouTube

      Jul 25, 2013 · This is about how to set up a microwave brick kiln for small amounts of gold/silver. Poor Man39;s Microwave Smelter Can Be Held in Hand While Hot No Need for Crucible Tongs

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    • Smelting Metal In Your Microwave Oven | Hackaday

      Dec 19, 2011 · Grab some scrap metal and a microwave oven and youll be casting your own metal parts in no time. [Mikeasaurus], who is known for doing strange things like making Silly Putty magnetic or

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    • Microwave Gold Smelting Kiln Kit With Graphite Ingot Mold

      Find many great new amp; used options and get the best deals for Microwave Gold Smelting Kiln Kit With Graphite Ingot Mold Crucibles Flux amp; Tongs at the best online prices at eBay!

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    • Gold Smelting Kits - Gold Rush Trading Post

      Very helpful information on how to mix fluxes, prepare your crucible, melt gold and silver, and how to stay safe doing it. Additionally, Moulton introduces two pieces of equipment every small scale miner should own: The Microwave Gold Kiln and small Kwik Kiln.

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    • Everything You Need to Know About the Process of Smelting Gold

      Mar 01, 2019 · Another option for gold smelting is a 1,200-watt microwave. It is necessary that the magnetron in the microwave is located on the side or back rather than on the top. It is possible to purchase a microwave gold smelting kit or a kiln which you can then place on a kiln shelf in the microwave.

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    • DIY Fire Assay Home Laboratory Microwave

      The microwave provides a unique environment for the column of ore and reagents in the crucible, since the contents of the crucible are heated slowly and evenly inside of the crucible by the microwaves, rather than by a radiant heat which heats the contents from the outside of the crucible.

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    • Complete Microwave Gold Kiln Kit Conical Mold Crucibles

      Find many great new amp; used options and get the best deals for Complete Microwave Gold Kiln Kit Conical Mold Crucibles Smelting Ore Black Sand at the best online prices at eBay!

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    • Microwave heating of gold ores for enhanced grindability and

      Microwave heating of a material leads to micro-crack formation. Micro-crack formation allows size reduction and liberation at a lower stress level. Micro-cracks generated enhances access of lixiviants to the mineral of interest. Microwave processing enhanced grindability and cyanide amenability of the gold ore.

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    • Gold Fire Assay by Microwave - 911Metallurgist

      Requires a 1200 watt microwave with 10 inside height clearance. The fused silica melting crucible is a high quality crucible and is the best choice for melting larger and purer amounts of gold, silver, and bronze, including old jewelry. Made of fused silica with clay bond, for temperatures up to 2500°F (1371°C).

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    • GOLD MINER39;S TOOLS :: Microwave Gold Smelting Kiln Kit

      The slightest bit of moisture can cause a crucible to crack upon heating. It is highly recommended to season them before use: First, heat the empty crucible inside the kiln in microwave for 15 minutes. Remove the kiln and crucible from the microwave and allow it to cool. Repeat this process again for 15 minutes the second time.

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    • Alternative Crucibles for U-Mo Microwave Melting

      to 1400°C). The current alumina crucible must be coated with erbia to prevent reaction with the melt. 3.2.1.1 Mullite (3Al 2 O 3-2SiO 2) Mullite is the main crucible material used currently for microwave melting. It is combined with a SiC secondary susceptor in the form of a composite crucible with SiC powder. Mullite must be protected from

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    • risk. Also, there are fumes coming off of the crucible during the smelting process that can be hazardous if not properly ventilated. Use a separate, dedicated 1200 watt microwave with turntable removed. The microwave To purchase the Microwave Gold Smelting Kiln or Kits, or watch a how-to video, please visit

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    • MELTING PURE METALS - Gold Processing Kilns

      Scrap gold and or silver placed on top of the flux up to 3 ounces. 1 oz. shot glass of flux poured on top of the scrap gold or silver. Place the kiln into the microwave and microwave on high power for 35 to 45 minutes. I use a two depression conical mold and the above recipe will completely fill one of the depressions with the metal and molten

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    • Melt gold and other metals in regular kitchen microwave

      Melt gold and other metals in regular kitchen microwave -- get your Microwave Kiln Kit today! You39;ve probably heard how you shouldn39;t put metal into a microwave oven. Well, you probably shouldn39;t, but if you do it with my quot;Microwave Kiln Kit,quot; you can melt a few grams of almost any metal without issue.

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    • Microwave Smelting? - Gold Refining Forum.com

      I bought one of the microwave gold kilns. Paid something like 49 for the microwave they reccomend on the Internet. Used the flux and put in some crushed black sand. There wasn39;t enough gold in it to talk about. I over filled the crucible (put in more than about 2/3 of its volume) and with the boiling and expansion, it overflowed.

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    • GPK MICROWAVE KILN - Gold prospecting hand dredges and tools

      The Microwave Kiln Gold Processing Kit (GPK) is simpler, less expensive and far less tedious - not to mention, more fun - than other processes, such as spiral panners or fine gold tables. All you need is a 1200 watt microwave, a few tools and you are on your way to smelting your own gold at home!

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    • Smelting tips for the Mocrowave Gold Kiln GPK

      This same type of arcing occurs within the crucible, as the kiln and crucible are all microwave transparent and the flux is electrically conductive of the microwave energy. The crucible then acts as an electrical insulator so that the electrical arcing cannot escape the inside of the crucible and fry the microwave itself.

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    • Few Words About How To Melt Gold In Graphite Crucibles or

      HOW TO MELT GOLD Here are a few basic steps for melting refined gold in graphite crucibles and fused silica crucibles. Note: These instructions are for refined gold that has been separated from the ore, or the fines and chips jewelers wind up with after repairing or resizing rings, etc.

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    • Smelting in a Microwave | Popular Science

      Sep 02, 2003 · Smelting in a Microwave. Our scientist zaps tin and silver, shatters glass, and arcs his oven to prove a point. By Theodore Gray. September 2, 2003.

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    • Melting gold. what to use for a crucible?

      Yes, jewelers always keep the alloys seperate, because they certify the Gold content in their product. It may sound like a small issue to most , but they deal with very small quantities at times and that makes little residue seem like a large contamination

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    • 3 Ways to Melt Gold - wikiHow

      May 07, 2019 · You can buy a microwave gold smelting kit or kiln. You place the kiln on a kiln shelf in the microwave. The crucible holds the gold while it is being heated and is placed in the kiln, with a lid on top. Dont use the microwave for cooking food again if you have used it to melt gold, though.

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    • Microwave Smelter: 8 Steps (with Pictures)

      The microwave I used was an 850W microwave (model: GE 3850W3W081A), I used regular bricks to build the hearth to keep the crucible and a silicon-carbide material as the heating element (I also used building insulation to try and keep the heat directed inwards, a terrible terrible mistake).

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