Zibo XiangRun Environment Engineering Co., Ltd.Products
Polyethylene purification
WRITER：admin JOIN IN：2015-12-21
CLASSES：Alumina purification
Products Introduction:
XR109 activated alumina is as a filtration media in polyethylene production. In this process, the slurry co-catalyst is filtered out of the polyethylene and trapped in the pores of the alumina bead.
Polyethylene (PE) is the most common plastic precursor and is used in a range of applications. Polyethylene is made from the building block of petroleum-based products, ethylene. Ethylene is produced from cracking ethane or naphtha. Often, an ethylene cracker is built on or near a refinery or PE derivative plants. In general terms, ethylene, a co-monomer, and solvent are purified and reacted with a catalyst in a continuous stirred tank reactor (CSTR). The slurry mixture exiting the reactor is then filtered to remove catalyst particles. Next, solvent is separated from the product with solvent recovery and recycle following. Purified polyethylene is extruded and then pelletized to a final product.Product created in a CSTR must be purified at the end of the process, removing the co-catalyst. The catalyst removal step is done through adsorption beds of XR109 activated alumina balls. This type of activated alumina is defined as HDPE purification.
lVarious size available for the international condition.
7* 14 mesh(1.2-2.8mm), 6*10mesh(1.5-3.2mm);5*8(2.5-4.0mm)
Characteristics:
lHigh bulk density
lUniform size
lHigh mechanical strength and wear resistance
lHigh pore volume and high adsorption
|
Item |
Unit |
Technical requirement |
|
Appearance |
White bead | |
|
Particle size |
mm |
7*14mesh |
|
AL2O3+promotor |
% |
≥93.5 |
|
Na2O |
% |
1.5-2.0 |
|
Bulk density |
g/cm3 |
0.7-0.8 |
|
Surface area |
㎡/g |
300-330 |
|
Pore Volume |
ml/g |
0.45-0.5 |
|
Macroporosity |
＞750A |
0.13 |
|
Loss on ignition(300-1000℃) |
% |
4-7 |
|
Abrasion Loss |
% |
≤0.1 |
|
Static absorption RH%=20% |
% |
≥10 |
|
Static absorption RH%=60% |
% |
≥20 |
|
Static absorption RH%=95% |
% |
≥40 |
|
Crushing Strength (N/Particle) |
N/particle |
50 |
Application:XR109 activated alumina ball is used in the production of polythene, can effectively adsorb catalyst residues, TBC, Hydrocarbons and other substances which affect products quality and stability.
Storage:
lAvoid moisture, avoid scrolling, throw and sharp shocking during transportation, rainproof facilities should be readied..
lIt should be stored in dry and ventilated warehouseto prevent contamination or moisture.
Package:
|
Type |
Plastic bag |
Drum |
Drum |
Super sack/Jumbo bag |
|
Bead |
25kg/55lb |
25 kg/ 55 lb |
150 kg/ 330 lb |
750kg/1650lb 900kg/1980lb 1000kg/ 2200 lb |
