RECOVERY AND REFINING GOLD
(INSTRUCTIONS FOR AQUA-REGIA REFINING)
MATERIALS AND MIXING INSTRUCTIONS

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AQUA-REGIA
IF YOU ARE ONLY AFTER GOLD THE FIRST OPTIONAL STEPS CAN BE SKIPPED
1-3 OUNCES OF METAL PER QUART OF AR. WILL DESOLVE PROPERLY WITHOUT LOSS.
*FILTER BETWEEN EACH POUR OFF WITH A COFFEE FILTER OR REFINING FILTERS*

FIRST;(OPTIONAL) FOR PLATINUM GROUP METALS.
DROP/PRECIPITATE ANY PLATINUM FIRST WITH AC (IF PRESENT),IT WILL DROP AS A RED MUD WITHIN 30 MINUTES.

NEXT;(OPTIONAL)
POUR OFF THE AR AND LET SIT FOR 24 HOURS.

NEXT;(OPTIONAL)
ANY RHODIUM(RARELY PRESENT) WILL DROP AFTER THE PLATINUM WITHIN 24 HOURS(DO NOT DISTURB THE AR BATH DURING THIS TIME).

NEXT;
POUR OFF THE AR INTO A CLEAN CONTAINER.

NEXT;
(GOING FOR THE GOLD)
HEAT THE AR TO 120* F
SLOWLY ADD UREA,IT SHOULD FIZZ(ADD UNTIL IT DOES NOT FIZZ)
THIS IS NEUTRALIZING THE NITRIC ACID .
DO NOT BE AFRAID TO ADD EXTRA UREA,YOU MUST BE SURE THE NITRIC ACID HAS BEEN PUT IN A NEUTRAL STATE.

NEXT;
POUR THE AR INTO A CLEAN CONTAINER,FILTER IF NEEDED.

NEXT;
ADD THE SMB TO 8 OZ GLASS OF HOT WATER(SMB WEIGHT=GOLD WEIGHT YOU EXPECT).
**NO MORE THAN 1 OUNCE OF SMB PER 8 OZ OF HOT WATER**

ADD THE SMB/WATER MIX TO THE NEUTRALIZED AR AND STIR(A FOUL SMELL WILL BE NOTICED).
ADD THE SMB VERY SLOWLY,IF YOU HAVE NOT CALCULATED THE AMOUNT OF GOLD TO EXPECT YOU WILL WANT TO ADD THE SMB/WATER MIX JUST A FEW OUNCES AT A TIME.
THAT WOULD REQUIRE REPEATING THE PRECIPITATION STEPS OVER AND OVER AND USING A DETECTION LIQUID TO CHECK FOR GOLD BETWEEN EACH DROP.......

THE GOLD WILL DROP (1/2 TO 2 HOURS)AS A BROWN/BLACK MUD/CURD.
GOLD CAN ALSO BE DROPED WITH ZINC POWDER, ZP WEIGHT=EXPECTED GOLD WEIGHT

NEXT;
WASH THE GOLD MUD WITH AMMONIA TO PURIFY.
THE AMMONIA WILL REMOVE ANY TRACE SILVER,PLATINUM,PALLADIUM,URIDIUM AND RHODIUM.
POUR OFF THE AMMONIA.
(REPEAT AS NEEDED)

NEXT;
WASH THE GOLD MUD WITH CLEAN/DISTILLED WATER.
POUR OFF THE WATER.
(REPEAT AS NEEDED)

THE GOLD MUD CAN BE TESTED WITH SC FOR PURITY.(OPTIONAL)
(REPEAT AMMONIA AND WATER RINSE TO REMOVE IMPURITIES)

TIME TO KILN FIRE THE GOLD MUD!!!!!
(OR TORCH FLAME FIRE ON A FIRE-BRICK FOR BEGINNERS THAT DO NOT HAVE A KILN)

KILN FIRE THE GOLD MUD;
MIX THE MUD IN EQUAL AMOUNT WITH ANHYDROUS BORAX(FLUX).
PLACE THE MIX IN A CRUCIBLE AND FIRE AT 2000*F UNTIL MELTED
POUR INTO A BAR MOLD AND LET COOL.

REFINED GOLD WILL BE .999 FINE IF DONE CORRECTLY.
SPECIAL NOTES;
COPPER AND ALUMINUM CAN BE USED TO DROP THE METALS FROM AR.(YEILDS LOW PURITY)
USE THE COPPER FIRST TO DROP MOST OF THE METALS,THEN ALUMINUM TO DROP THE COPPER AND ANY REMAINING TRACE ELEMENTS.
WITH THAT SAID BE SURE TO KEEP THESE 2 BASE METALS OUT OF THE AR BATHS AT ALL COST WHEN REFINING.