Alumina Desiccant

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Alumina Desiccant

Activated Alumina Desiccant

中文链接：活性氧化铝干燥剂

Molecular formula: Al₂O₃·nH₂O (0<n<3)

Molecular Weight: 101.96 + nH₂O

Yuanying activated alumina desiccant has advantages such as stable chemical properties, good adsorption capacity, high pressure-resistant, high wear-resistant, etc.

Widely used in petrochemical gas and liquid drying, food, oxygen industry, textile industry, electronic industry, air filter, air compressor and automated instrument drying.

YY01-D

Item	unit	Index
Al₂O₃	%	≥92	≥92	≥92	≥92	≥92
SiO₂	%	≤0.02	≤0.02	≤0.02	≤0.02	≤0.02
Fe₂O₃	%	≤0.02	≤0.02	≤0.02	≤0.02	≤0.02
Na₂O	%	≤0.20	≤0.20	≤0.20	≤0.20	≤0.20
Loss on ignition	%	≤7.0	≤7.0	≤7.0	≤7.0	≤7.0
Bulk density	g/ml	0.70-0.80	0.70-0.80	0.70-0.80	0.70-0.80	0.70-0.80
Specific surface area	m²/g	≥300	≥300	≥300	≥300	≥300
Pore volume	ml/g	0.40-0.50	0.40-0.50	0.40-0.50	0.40-0.50	0.40-0.50
Abrasion loss	%	≤0.1	≤0.1	≤0.1	≤0.1	≤0.1
Static absorption	%	≥18	≥18	≥18	≥18	≥18
Water absorption	%	≥50	≥50	≥50	≥50	≥50
Crystal phase		x-p	x-p	x-p	x-p	x-p
Crush strength	N/p	≥150	≥200	≥220	≥260	≥320
Size	mm	3-5	4-6	5-7	6-8	8-10

AL₂O₃=100-(SiO₂+Fe₂O₃+Na₂O+Loss on ignition)

YY01-I

Item	Unit	Index
Al₂O₃	%	≥93	≥93	≥93	≥93
SiO₂	%	≤0.02	≤0.02	≤0.02	≤0.02
Fe₂O₃	%	≤0.02	≤0.02	≤0.02	≤0.02
Na₂O	%	≤0.40	≤0.40	≤0.40	≤0.40
Loss on ignition	%	≤7.0	≤7.0	≤7.0	≤7.0
Bulk density	g/ml	0.7-0.8	0.7-0.8	0.7-0.8	0.65-0.75
Specific surface area	m²/g	≥320	≥320	≥320	≥320
Pore volume	ml/g	≥0.40	≥0.40	≥0.40	≥0.40
Static absorption	%	≥18	≥18	≥18	≥18
Abration loss	%	≤0.1	≤0.1	≤0.1	≤0.1
Crush strength	N/p	≥100	≥200	≥300	≥500
Size	inch	1/8”	3/16”	1/4”	1/2”

AL₂O₃=100-(SiO₂+Fe₂O₃+Na₂O+Loss on ignition)

YY01-M

YY01-M series activated alumina desiccant applied to polymer and polyethylene production, can effectively remove residual hydrocarbons, TBC, catalysts and other harmful substances.

Items	Unit	YY01-M			YY01-MA
Items	Unit	Al₂O₃≥93%			Al₂O₃+ Auxiliary ≥93%
Size	mesh	5*8	6*10	7*14	5*8	6*10	7*14
SiO₂	%	≤0.02	≤0.02	≤0.02	≤0.02	≤0.02	≤0.02
Fe₂O₃	%	≤0.02	≤0.02	≤0.02	≤0.02	≤0.02	≤0.02
Na₂O	%	≤0.40	≤0.40	≤0.40	≤0.40	≤0.40	≤0.40
Loss on ignition	%	≤7.0	≤7.0	≤7.0	≤7.0	≤7.0	≤7.0
Bulk density	g/ml	0.7-0.8	0.7-0.8	0.7-0.8	0.7-0.8	0.7-0.8	0.7-0.8
Specific surface area	m²/g	≥320	≥320	≥320	≥320	≥320	≥320
Pore volume	ml/g	≥0.44	≥0.44	≥0.44	≥0.44	≥0.44	≥0.44
Macroporosity >750 ?	ml/g				0.13	0.13	0.13
Static absorption, RH=20%	%	≥10	≥10	≥10	≥10	≥10	≥10
Static absorption, RH=60%	%	≥20	≥20	≥20	≥20	≥20	≥20
Static absorption, RH=95%	%	≥40	≥40	≥40	≥40	≥40	≥40
Abration loss	%	≤0.1	≤0.1	≤0.1	≤0.1	≤0.1	≤0.1
Crush strength	N/p	≥100	≥60	≥50	≥100	≥60	≥50
Size	mm	2.5-4.0	1.5-3.2	1.2-2.8	2.5-4.0	1.5-3.2	1.2-2.8

Packing

25kg/bag, 150kg/steel drum, 800kg/jumbo bag

Introduction

Activated alumina desiccant is white spherical porous granules, surface smooth, uniform particle size, non-toxic, odorless, tasteless, insoluble in water, alcohol and organic solvents, but insoluble in acids and alkalis. It has strong moisture adsorption, does not burst after absorbing water, possesses big mechanical strength, specific surface area and pore volume.

Due to the unique porous bone structure, high specific surface area and in an unstable transition state, activated alumina desiccant has biggish activity, strong affinity with active ingredient. It has a number of capillary channels, its selective adsorption is not only determined by its micro-holes diameter size, but also according to the polarity of the adsorbed materials. Activated alumina desiccant has a strong affinity to water, acetic acid, alkali, etc., is a micro-water depth desiccant also is the adsorbent of polar molecules. Its monomolecular adsorption layer has high net heat quantity, is very suitable for non-heat regenerative device (pressure swing adsorption device), its dew point temperature is below -70 ℃ and is a highly efficient desiccant.