PURAL和CATAPAL是高纯度氧化铝商标,分别制造在德国布隆斯比特和美国路易斯安那州Lake Charles地区。 

PURAL和CATAPAL是一种白色，自由流动的粉末，其独特的纯度和可控的物理特性相结合，使它们成为许多产品优秀的原料。这个家族的氢氧化铝（氧化铝一水合物，铝石，三羟铝石和Al（OH）3）已被用作载体或粘合剂在炼油厂催化剂和化学过程。 

在许多应用的最新发展已经表明这种氢氧化铝具有远远超出催化研究应用领域。 

PURAL and CATAPAL are the respective tradenames for the high purity boehmite aluminas manufactured in Brunsbüttel, Germany

and Lake Charles, Louisiana, USA.

PURAL and CATAPAL are available as white, free flowing powders whose unique combination of purity and controllable physical properties make them excellent starting materials for many products. This family of aluminas (alumina monohydrates, AlOOH, and bayerite, Al(OH)3) has been used as supports or binders for catalysts in refinery and chemical processes.

Recent developments in many other applications have indicated these aluminas have applications in areas far beyond talysis.

Typical chemkal and

physical propertles

unit

Pural

SB

PURAL

SB1

PURAL

SCF

PURAL

SCC

PURAL

NG

PURAL

NF

PURAL

200

PURAL

BT*

Al2O3

%

74

74

74

74

77

77

80

64

Na2O

%

0.002

0.002

0.002

0.002

0.002

0.002

0.002

0.002

Loose bulk density

g/l

650-850

650-850

500-700

700-850

400-600

350-500

500-700

500-700

Packed bulk density

g/l

800-1100

800-1100

800-1100

850-950

700-900

600-800

700-900

600-800

Particle size(d50)

um

45

45

25

60-150

35

15

40

5-10

**Surface area(BET)

m2/g

250

250

250

250

170

170

100

360***

**Pore volume

ml/g

0.5

0.5

0.5

0.5

0.45

0.45

0.7

0.3***

Crystallite size(120)

nm

5.0

5.0

5.0

5.0

10

10

40

40****

Chemical purity(化学纯度)：C:0.25%；SiO2：0.01-0.015%；Fe2O3：0.0005-0.015%；TiO2：0.01-0.20%.

*Bayerite. 拜三水铝石.

**After activation at 550℃ for 3 hours.在三小时内,550摄氏度的环境下激活.

***After activation at 350℃ for 3 hours.在三小时内,350摄氏度的环境下激活.

****Reflex 331/Bayerite.