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Inert alumina ceramic ball

　　(1) Introduction
The inert alumina ceramic ball is broadly utilized as the covering or supporting materials of the catalyst in the reactors and the packing in the columns in such varied areas, for example, petroleum, chemical industry, chemical fertilizer, natural gas, and environmental protection etc. There are lots of merits for it, for instance, the stronger resistance to high temperature and high pressure, lower ratio of the moisture absorbing, more stable chemical properties, and so on. It is capable of enduring the corrosion of acid, alkali, and organic solvent. In addition, it can also bear the rapid transitions of temperature during the operation. In fact, its principal functions are to accelerate the distribution of gas or liquid, and support or protect the active catalyst, which especially has the relevantly lower mechanical strength.
This product, which had been developed by our group company, had gained the award of excellent new product and the prize of the science and technology improvement of Jiangxi province in 1988. In the same year, this product entered the national honor roll of the excellent new product. In 1990, it gained the national certificate of the science and technology achievements. In 1996, it also got the provincial certificate and the golden prize of the famous brand product. Of late years, it has always been recommended by SINOPEC. Since it entered the market, all circles of customers had realized that its properties and effects are the same as the foreign products, and some of the technological index has surpassed the same foreign products.

(2) Chemical constitutions

Chemical compositions	Content
AL₂O₃	(Standard value +4) %
AL₂O₃+SiO₂	≥92%
Fe₂O₃	<1%

(3) Physical and chemical properties

Item Type		Feldstar	Feldstar-mullit	Mullite	Mullite-corundum	Corundum
Chemical composition %	Al₂O₃	20-30	30-45	45-70	70-90	≥90
	Al₂O₃±SiO₂	≥90
	Fe₂O₃	≤1
Water absorption %		≤5
Acid resistance %		≥98
Alkali resistance %		≥80	≥82	≥85	≥90	≥95
Thermal resistance ℃		≥1300	≥1400	≥1500	≥1600	≥1700
Crushing strength	Φ6	≥400	≥420	≥440	≥480	≥500
	Φ8	≥480	≥520	≥600	≥620	≥650
	Φ10	≥600	≥700	≥800	≥900	≥1000
	Φ13	≥1000	≥1100	≥1300	≥1500	≥1800
	Φ16	≥1500	≥1600	≥1800	≥2300	≥2600
	Φ20	≥1800	≥2000	≥2300	≥2800	≥3200
	Φ25	≥2500	≥2800	≥3200	≥3600	≥4000
	Φ30	≥3000	≥3200	≥3500	≥4000	≥4500
	Φ38	≥4000	≥4500	≥5000	≥5500	≥6000
	Φ50	≥6000	≥6500	≥7000	≥8500	≥10000
	Φ60	≥8000	≥8500	≥9000	≥10000	≥12000
	Φ75	≥10000	≥11000	≥12000	≥14000	≥15000
Bulk density ,Kg/m³		1100-1200	1200-1300	1300-1400	1400-1550	≥1550
Note: It may only be provided as the reference for the bulk density, and it is not as the evidence of check.

(4) Main specifications and types
a) Specifications and allowable deviation of diameter
The product of other specifications can also be prepared according to customers'

Diameter,Φ	3	6	8	10	13	16	20	25	30	38	50	75
Toleracne, mm	±1.0				±1.5				±2.0			±3.0

b) Assortments
In accordance with the content of inert AL2O3 from 25% to 95%, there are 17 assortments on every 5% as a grade.

No.	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17
Al₂O₃ content, (%)	<25	25	30	35	40	45	50	55	60	65	70	75	80	85	90	95	>95

(5) Notice to ordering goods
a) When ordering goods, customers should introduce the radical situations of the equipment,
including the sizes of reactors, and the operational temperature etc.
b) Customers should provide the specification, types, and the total content of Si, Al related to the required product.
c) As the inert ceramic ball belongs to the natural tight stacking in the reactors, customers should consult with our technological staff to determine the amounts according to the practical loading volume, and remain 15-20% margins.

(4) Product Standard
Chemical Industry Standard HG/T 3683.1 - 2000 Industrial Ceramics Ball - Perforated Ceramics ball

P.C:337055　Tel:0799-0799-6791333　Fax:0799-6767777　E-mail:px.hs@163.com