4A Molecular Sieve with Top Quality

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China Main Port
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TT or LC
Min Order Qty:
1 Metric Ton m.t.
Supply Capability:
10000 Metric Tons per Year m.t./month

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Product Description:

1. For drying and purifying, high efficient

2. Prefessional manufacturer

3. FREE SAMPLES at any time

 

 

Molecular sieve 4A is an alkali alumino silicate;it is the sodium form of the Type A crystal strcture.4A molecular sieve has an effective pore opening of about 4 angstroms(0.4nm).Our 4A molecular sieve will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger.Such adsorbable molecules include simple gas molecules such as oxygen,nitrogen,carbon dioxyde and straight chain hydrocarbons.Branched chain hydrocarbons and aromatics are excluded. 

 

Molecular Formula

 

Na2O  Al2O3  2.0 SiO2  4.5 H2O

 

Specification And Application

 

Specification

 

Item

 

Unit

 

Technical data

 

Shape

 

 

 

Pellet

 

Sphere

 

Diameter

 

mm

 

1.5-1.7

 

3.0-3.3

 

1.7-2.5

 

3.0-5.0

 

Size Ratio Up To Grade

 

%

 

≥98

 

≥98

 

≥96

 

≥96

 

Bulk Density

 

g/ml

 

≥0.66

 

≥0.66

 

≥0.66

 

≥0.66

 

Wear Ratio

 

%

 

≤0.20

 

≤0.40

 

≤0.20

 

≤0.20

 

Crushing Strength

 

N

 

≥30/cm

 

≥45/cm

 

≥30/p

 

≥70/p

 

Static Water Adsorption

 

%

 

≥20.5

 

≥20.5

 

≥21

 

≥21

 

Ethylene Adsorption

 

%

 

≤3.0

 

≤3.0

 

≤3.0

 

≤3.0

 

Water Content, As Shipped

 

%

 

≤1.5

 

≤1.5

 

≤1.5

 

≤1.5

 

Application

 

Drying and removing of CO2 from natural gas, LPG, air,inert and athmospheric gases, etc.

 

Removal of hydrocarbons, ammonia and methanol from gas streams (ammonia syn gas treating).

 

Special types are used in the air break units of buses, trucks and locomotives.

 

Packed in small bags, it may be used simply as a packaging desiccant.

Attention

 

To avoid damp and pre-adsorption of organic before running, or must to be reactivated.

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Q:question on painting cement?
Concrete paint
Q:what is the chemical coposition of microsilica and how it react with cement?
Cement is made by heating limestone [CaCO3] with small quantities of other materials (such as clay) to 1450°C in a kiln, in a process known as calcination. The resulting hard substance [CaO], called 'clinker', is then ground with a small amount of gypsum [MgSO4.2H2O] into a powder to make 'Ordinary Portland Cement', the most commonly used type of cement (often referred to as OPC). Portland cement is a basic ingredient of concrete, mortar and most non-speciality grout. The most common use for Portland cement is in the production of concrete. Concrete is a composite material consisting of aggregate (gravel and sand [impure SiO2]), cement, and water. As a construction material, concrete can be cast in almost any shape desired, and once hardened, can become a structural (load bearing) element. Concrete consists of highly insoluble calcium silicates (CaO+ SiO2 -> CaSiO3). Now silica is pure SiO2 and so finely grounding it and putting into the concrete mixture instead of more coarse sand almost certainly results in a better product with better mixing and hence a stronger cement. This is an educated (I hope!) guess by an inorganic chemist. Cheers, dr p
Q:how do you get blood out of cement?
A driveway doesn't have to be perfectly level. If you get a machine sander from a hireall place and powderize the cement in the stained areas to the depth of the stain, you should be able to literally blow it away, then reset new cement in that area if neccessary. Also, you can use cement a bit like the white out paste used in the stationary world, let it set, and you're all good. Which option you take depends on how perfect you want your driveway to look.
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a high gloss high quality concrete paint, the high gloss will make it easier to clean, you need to make sure that it is completely dry before you shower in it and that the concrete is completely dry before you paint it or you will get bubbles and the paint will peel. I would use a paintable silicone for the seams.
Q:Help on Cement Pricing?
How about we call it 12 yards and our price here is 100 a yard plus tax.... so all you need now is someone to pour and finish it:) Have fun, 12 is deep, so watch the little kids.......they just love to skate thru.
Q:How to dissolve hardened cement in a plastic/ PVC pipe?
Find something you can push along the inside of the pipe to break up the blockage - maybe stiff fence-wire, or something similar. Try to introduce this as close as possible, but upstream, of the blockage (which might mean opening the joint at the balcony, for instance). Work it backwards and forwards until the blockage is broken up and washed away.
Q:Is Duco cement good for crafts?
specific, this have been given right here approximately to a girl I met yet now no longer with an gadget. i grow to be in Japan with a pair acquaintances, and we keen to pass to the coastline. i've got have been given consistently had to purpose surfing. So, as directly as we requested a jap buddy if she had a surfboard that i might desire to borrow, she pronounced she merely had a boogie board. apparently mutually as she went to a save to purchase a surfboard (that's what she initially needed) the shop clerk recommended her to purchase a boogie board, by way of actuality she grow to be a woman: women use boogie boards, now no longer surfboards. isn't the loopy? I visited Japan in ... 2003, and that i'm now no longer efficient mutually as precisely the female provided her boogie board. So, with slightly of luck subjects have replaced. Or, in line with hazard this wasn't a uncomplicated case... in line with hazard the shop clerk grow to be sexist.
Q:a concrete ix requires 3 parts sand and 5 parts cement.how many pounds of cement are needed for 75 pounds of?
3 parts sand:5 parts cement 75 # sand 75#/3=x/5 x=75*5/3=125# of cement.
Q:What's best to use for scrapbooking/card-making, glue stick or rubber cement?
stick, much easier to control and less messy than the cement. and if in the future you want to move something it is much easier to remove and the stain it leaves is minimal
Q:Does rubber cement work, gluing rubber to steel?
use some good super glue.. it makes a stronger bond. and the excess can be sanded off after it dries, its better to over apply than to under apply.
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1. Manufacturer Overview

Location Rizhao, Shandong, China (Mainland)
Year Established 2004
Annual Output Value US$5 Million - US$10 Million
Main Markets North America; South America; Southeast Asia; Africa; Mid East
Company Certifications Certificate of Quality; certificate for products exemption from quality surveillance inspecction; ISO9001 Certificate

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Range  
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3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Rizhao port
Export Percentage 91% - 100%
No.of Employees in Trade Department 3-5 People
Language Spoken: English, Chinese, French, Russian
b)Factory Information  
Factory Size: 3,000-5,000 square meters
No. of Production Lines 3
Contract Manufacturing OEM Service Offered Design Service Offered Buyer Label Offered
Product Price Range Average