Boehmite

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Description

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Boehmite or böhmite is an aluminium oxide hydroxide (?-AlO(OH)) mineral, a component of the aluminium ore bauxite. It is dimorphous with diaspore.It is white with tints of yellow, green, brown or red due to impurities. It has a vitreous to pearly luster, a Mohs hardness of 3 to 3.5 and a specific gravity of 3.00 to 3.07. It is colorless in thin section, optically biaxial positive with refractive indices of na = 1.644 – 1.648, nß = 1.654 – 1.657 and n? = 1.661 – 1.668.

Boehmite occurs in tropical laterites and bauxites developed on alumino-silicate bedrock. It also occurs as a hydrothermal alteration product of corundum and nepheline. It occurs with kaolinite, gibbsite and diaspore in bauxite deposits; and with nepheline, gibbsite, diaspore, natrolite and analcime in nepheline pegmatites.[3] Industrially, it is used as an inexpensive flame retardant additive for fire-safe polymers.
We could manufacture and adjust boehmite as your required data.

The specification of boehmite:

Items No.	boehmite Content(=%)	D50 (µm)	(=ppm)
Items No.	boehmite Content(=%)	D50 (µm)	Na	Si	Fe	Ca	Mg	Cu	Cr	Ti
XR-BR01	99.9	80	300	100	100	200	20	10	10	10
XR-BR02	99.95	50	100	50	50	100	10	5	5	5
XR-BR03	99.99	40-60	50	25	3	3	1	1	1	1

Item No.	Chemical Composition %				D50, um	Surface area m2/g	Bulk density g/cm3
Item No.	Fe2O3	Na2O	H2O	Ignition	D50, um	Surface area m2/g	Bulk density g/cm3
B-R-2	=0.02	=0.03	=0.5	=17	2.0±0.5	=70	0.3-0.5

Item	Unit	Low sodium Pseudoboehmite	Common Pseudoboehmite	Macroporous pseudo boehmite
Item	Unit	XR-DF-03-LS(NH-P-DF)	NH-P-D	NH-P-DH	NH-P-DF-1	NH-P-DF-2	NH-P-DF-3
Fe2O3	%	=0.01	=0.01	=0.03	=0.03	=0.03	=0.03
Na2O	%	=0.1	=0.30	=0.3	=0.1	=0.1	=0.1
SiO2	%	=0.2	=0.2	=0.2	1.0-2.0	1.0-2.0	1.0-2.0
Particle size	um	3-20	3-20	3-20	3-20	3-20	3-20
Surface area	?/g	=250	=250	=250	=250	=250	=250
Pore Volume	ml/g	0.4-0.5	0.4-0.5	0.5-0.8	0.85-0.95	0.9-1.0	0.9-1.2
Dry basis	%	=65	=65	=65	=70	=70	=70
3 H2O	%	=1	=1		=3	=3	=3
Peptizing index	%	=97	=97	=70	——

Application of boehmite:
Boehmite is widely applied in the catalyst carrier, flame retardants, electronic ceramic substrate, etc

Storage of boehmite
lAvoid moisture, avoid scrolling, throw and sharp shocking during transportation, rainproof facilities should be readied..
lIt should be stored in dry and ventilated warehouse to prevent contamination or moisture.

Package of boehmite

Type	Plastic bag	Super sack/Jumbo bag
Powder	25kg/55lb	1000kg/ 2200 lb

XiangRun is a specialized aluminium hydroxide dry gel(Pseudo-boehmite) and boehmite manufacturer located in China. Our company is ISO9001:2000 approved due to its management in line with international standards. With several years production experience in the chemical industry, we are happy to be able to produce quality sulfur recovery catalyst, adsorbent,catalyst carrier, zeolite and related products for customers all over the globe. We offer complete service, in addition to reliable products, for customers so that they can feel secure in their purchase. If you are interested in our aluminium hydroxide dry gel(Pseudo-boehmite) , or other chemical products, please contact us via phone or email.

FAQ
Q: Is boehmite same as pseudoboehmite or pseudo boehmite?
A: They are not same.
Q: What packages of boehmite'?
40kg/pack, 25kg/pack or 1000kg/pack. We could do the pack as your requirement.

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Zibo Xiangrun Environment Engineering Co.,Ltd

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