Clay Crucible

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High Temperature Resistant Lab Fire Assay Clay Crucible for Melting Gold

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Best High-end quality Ceramic clay Fire Assay Crucible manufacturers for gold smelting Company - XTL

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High Temperature Resistant Lab Fire Assay Clay Crucible for Melting Gold

Mineral lab consumables fire clay crucible

30g 40g 45g 50g 65g Fire Clay Crucibles

Have a higher than normal resistency to cracking under fire assay conditions. Our crucibles and refractory products are used in laboratories throughout international marketplace. We have a variety of shapes and sizes available to cater to specifications required.

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Product Details

Product Introduction

Fire Assay Crucible size: 5g/20g/30g/40g/45g/50g/55g/65g/75g and No.8/No.8.5/No.9/No.9G/No.9.5 crucibles are avaivalbe and also we make the customzied size.

Free samples are avialable for test.

Assaying Fire Clay Crucible

Type: Refractory Material

Working Temperature: ≥ 1350ºC(Fire assay working temperature less than 1150ºC)

Application: Nonferrous industry,Fire assay laboratory,smelting plant,metal sample analysis.

Feature: High fire resistance,high density,good corrosion resistance,good thermal shock resistance,Long service life,no hanging residue,no permeable,no cracking.

Remark:Quality and specification can customize as requirement .

Physical and chemical indicators :Fire resistance ≥ 1350ºC

Al2O3 45%-55%

SiO2: 38%-56%

Drill core samples (or others) are received at the laboratory, crushed, milled and dried in the oven. Samples are then separated into bags, tagged and weighed.

Next, the samples are prepared for the fusion process, which requires a reducing environment and so the samples are mixed with flux, a carbon source (coal dust) and litharge (PbO).

The samples are then placed into a fusion/ refractory crucible, ready to go into the furnace. The high tempareture (1000 – 1200°C) melts the sample while the flux fuses with the gangue (non-precious material) and the now liquid lead collects all the precious metals. The newly-formed Pb-Au-Ag-PGE concoction migrates to the bottom of the crucible due to its high density.

As cooled lead sample is then separated from the glass waste (slag) with a hammer, and placed in a porous bone ash (MgO) crucible, ready for the cupellation step.

The sample is then placed in a muffle furnace at around 1000°C. The lead oxidises with the aid of the inflowing air from the furnace muffle and then immediately melts and is absorbed into the crucible, leaving behind what is known as a precious metal prill.

The prill is then analysed for its precious metal content through dissolving it in aqua regia (a mixture of hydrochloric and nitric acid) and the concentrations determined by spectroscopic methods (AAS, ICPAES, ICPMS).

Eventual detection limits are in the region of parts per billion but accuracy is usually in the region of 3 -5% for this metallurgical analytical technique.

Chemical Composition

SiO2	54.6%
Al2O3	40.31%
Fe2O3	1.11%
TiO2	0.47%
CaO	1.28%
MgO	0.34%
K2O	0.61%
Na2O	0.39%
L.O.I(loss on ignition)	0.21%

Applications

Precious Metal Analysis

Mining Laboratory

Laboratory Testing

Mineral Assaying

Fire Assaying

Gold Assaying

Item:	Fire assay crucible
Process Type:	Rolling molding
Material:	SiO2 + Al2O3
Tolerance:	+-2mm
Facility:	Automatic molding equipment
Certificates:	ISO 9001 SGS
Shipping:	Many stocks , delivery time around 5-10days . by sea or by air as customer request
Delivery & Service:	Timely delivery each time. Provide reliable service and responsible for each customer with each product. Our target is to satisfy every customer with the best service.

Item	OD (mm)	Height (mm)	Capacity (ml)	Wooden Case Dimension (mm)	Qty/Case (pc)	Qty/20’FCL (pc)
XTL-30g	88	110	250	107010701080	2310	46200
XTL-40g	88	135	350	111010701080	1980	39600
XTL-45g	88	160	500	108011701080	1296	25920
XTL-45g	90	155	680	114010301120	1296	25920
XTL-50g	105	150	700	114010301120	1530	30600
XTL-65g	105	165	720	114010301120	1425	28500
XTL-75g	120	160	750	108011701080	900	18000

Product Information

Wholesale crucible for muffle furnace with good price - XTL

Company Advantages

7000 square meters work shop

Automatic production line

Longer working life

Certifications and Patents

Frequently Asked Questions about Fire Clay Crucible

Why us?

* Professional manufacturer since 1997.
* Strict quality control on production process and tolerance.
* Free samples available
* Customized production based on your drawing or specification
* On-time delivery and reliable support and service
* Inventory available for quick shipment
* We keep confidentiality of all the drawings and business information between us.

Are you a trading company or a manufacturer?

* We are a manufaturer.

Can you provide the free samples?

* Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.

Do you accept customized production based our specification?

* Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t have a drawing, just tell us your idea, we will work out the drawing for you.

What's the delivery time?

* 7 working days for standard products 30 days for customized products.

If you have another questions,please feel free to contact us.

Liling Xing Tai Long Special Ceramic Co.,Ltd

Contact: Fanny

Tel: +86 13975373343

0086-0731-23253338

Email: admin@llxtl-china.com

WhatsApp：0086-13975373343

Company address: Shentan Industrial Zone, Liling, Hunan, 412200

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Best High-end quality Ceramic clay Fire Assay Crucible manufacturers for gold smelting Company - XTL

High-end quality Ceramic clay Fire Assay Crucible manufacturers for gold smelting compared with similar products on the market, it has incomparable outstanding advantages in terms of performance, quality, appearance, etc., and enjoys a good reputation in the market. Xingtailong summarizes the defects of past products and continuously improves them. The specifications of High-end quality Ceramic clay Fire Assay Crucible manufacturers for gold smelting can be customized according to your needs.Fire Assay Crucibles have a higher than normal resistance to cracking under fire assay conditions. Our crucibles are used in laboratories throughout the international marketplace. We have a variety of shapes and sizes available to cater to the specifications required.Our crucibles give longer life, faster melting, constant melting speed, and exceptional resistance to violent changes in temperature.
Quality China Fire Assay Crucible Manufacture And Factory Magnesia Cupel for Melting Gold Manufacturer | XTL

6A 7A 8A China Fire Assay Crucible Manufacture And Factory Magnesia Cupel for Melting Gold compared with similar products on the market, it has incomparable outstanding advantages in terms of performance, quality, appearance, etc., and enjoys a good reputation in the market. Xngtailong summarizes the defects of past products and continuously improves them. The specifications of 6A 7A 8A China Fire Assay Crucible Manufacture And Factory Magnesia Cupel for Melting Gold can be customized according to your needs.Cupel is a porous refractory for absorbing lead oxide when ash blows the lead buckle. The main component of magnesia is magnesium oxide, which is a very good refractory and can resist the erosion of alkaline flux. Lead oxide is a very strong alkaline flux. At high temperatures, the affinity between lead oxide and silica is very strong, which can invade the silicate in the cupel. There is more silicate in the ash cupel and cement cupel. After blowing with this kind of cupel, there will be pits on the surface of the cupel, and precious metals will be lost as a result. Using magnesia cupel, no such phenomenon after ash blowing, the surface is very smooth.
Best Fused silica melting crucible, quartz smelting Clay Crucible Manufacturers bowl for gold and platinum - XTL

Selected quality quartz as materials, combined with advanced ceramic processing workmanship, mainly used for melting platinum, gold, silver, copper and another high temperature alloy, high purity, anti-corrosion, anti strong acid and strong alkali, good hardness, high thermal shock resistance. The main component is SiO2 ≥80%, Al2O3 (≤17%) and other is 3%( K2O, Na2O, Fe2O3), There is no crack after 10 times sudden heat and sudden cold at 1100℃⇌ 20℃, and no crack after 10 times using oxygen cutting gun to spray 1700-1800 flame on the crucible.Fused silica melting crucible, quartz smelting Clay Crucible Manufacturers bowl for gold and platinum compared with similar products on the market, it has incomparable outstanding advantages in terms of performance, quality, appearance, etc., and enjoys a good reputation in the market. Xngtailong summarizes the defects of past products and continuously improves them. The specifications of Fused silica melting crucible, quartz smelting Clay Crucible Manufacturers bowl for gold and platinum can be customized according to your needs.
High Temperature Resistant Lab Fire Assay Clay Crucible for Melting Gold

Our fire assay crucibles give longer life, faster melting, constant melting speed and exceptional resistance to violent changes of temperature.

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Take advantage of our unrivaled knowledge and experience, we offer you the best customization service.

Phone:

13975373343
Email:

fanny@llxtl-china.com
Telephone:

+86 13975373343
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Website:

www.xtlceramic.com

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They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.