2mm 10×20 Mesh 4 Angstrom Molecular Sieves

2mm 10×20 Mesh 4 Angstrom Molecular Sieves

Product description

4A molecular sieve has a pore size of 4A, which absorbs water, methanol, ethanol, hydrogen sulfide, sulfur dioxide, carbon dioxide, ethylene, propylene,

It does not adsorb any molecules (including propane) with a diameter greater than 4A, and the selective adsorption performance for water is higher than any other molecules. It is one of the most used molecular sieve varieties in industry.

Molecular formula: Na2O.Al2O3·2.0SiO2·4.5H2O

The pore size of 4A molecular sieve is 4A (1A=0.1 nanometers). 4A molecular sieve is an alkali metal aluminosilicate, which can adsorb water, NH3, H2S, sulfur dioxide, carbon dioxide, C2H5OH, C2H6, C2H4 and other molecules with critical diameters not greater than 4A. . It is widely used in the drying of gases and liquids, and can also be used in the refining and purification of certain gases or liquids, such as the production of argon.

Product shelf-life from date of production is only 12 months in original pacakaging, which are opened by us to dispense the product, we will ensure that the product reaches you with at least 10 months of shelf life left. Store the molecular sieve in a cool location and at bellow <90% humidity.

Product life once commissioned is 3-5 years, unless exhausted by saturation first. It is possible to regenerate Zeolite by baking in an oven at 300c, at which point the moisture level will be reduced to approximately 2%. Then the product must be cooled in a desiccator, this is extremely energy intensive and is most often discarded, and replaced with a fresh Molecular Sieve.

4A molecular sieve technical Index:

Application

(1) Argon gas making and purifying

(2) Detergent Builder: 4A molecular sieve as a detergent builder mainly used to exchange of calcium ions in water to soften water, remove dirt and prevent dirt deposition. 4A molecular sievesubstitute trisodium phosphate as detergent builder is a significant role on solving environmental pollution. 4A molecular sieve also is used for SOAP plasticizer, toothpaste abrasive, etc.

(3)Sewage Disposal: 4A molecular sieve as a softening agentinstead of domestic widespreadsulfonated coal, thereby reducing costs. In sewage 4A molecular sieves can remove ammonia nitrogen, Pb2+, Cu2+, Zn2+, Cd2+, etc. In addition to ensure water quality qualified, but also can recycle heavy metal.

(4) Metallurgical Industry separating agent:separation, extraction of potassium, rubidium and cesium in brine. In the industry it is used for collection, separation and extraction of metals and other processes.

(5) Petrochemical industry as catalyst, drying agent, adsorbent: depth drying gas and liquid such as air, natural gas, LPG, inert gas, hydrocarbons, saturated hydrocarbons, refrigerant; dehydrating agent for paint, polyester, dyesand coatings.

(6) For agricultural soil conditioner.

(7) Medicine forsilver zeolite antibacterial agent

(8) Static desiccant for household refrigerating systems, pharmaceutical packaging, automotive air conditioning, electronic components, easy to wet and deteriorate material, perishable chemicals.

(9) Used in the R-12 and R-22 system, molecules adsorbed by 3A molecular sieve can all be adsorbed by 4A molecular sieve.

Function

1 Detergency: Through experiments on the same formula containing different additives, change the additives to compare their detergency, and found that 20% STPP, 20% molecular sieve, 4% polymer decontamination effect is equivalent to 40% STPP. Adding 10% sodium carbonate and 4.5% polymer to the 20% molecular sieve in the phosphorus-free formula can obtain a product with ideal detergency.

2 Anti-redeposition: 4A molecular sieve has good adhesion to oil stains. When zeolite is added to additives such as sodium carbonate, CMC, sodium silicate and sodium sulfate, it will significantly reduce the absorption of oil stains by nylon cloth. When the particle size of zeolite is 0.4-1.0μm, its dispersibility is better and it can prevent adhesion on the fabric. Although the dispersing ability of 4A molecular sieve is not as good as STPP, it can solve the problem of dirt dispersion by compounding with sodium polyacrylate.

3 Compatibility with other additives: 4A molecular sieve and other additives can complement each other's performance. 4A molecular sieve is not as good as STPP in terms of dirt dispersibility and hardness ion chelating ability, but 4A molecular sieve and STPP are mixed, detergency The effect of using STPP alone can be achieved. This is because STPP can quickly complex calcium and magnesium ions from the solid surface, and transfer to the 4A molecular sieve through the aqueous medium. The poor ability of 4A molecular sieve to bind magnesium ions can be compensated by compounding silicate and carbonate in molecular sieve.

4 PH buffering effect: 4A molecular sieve is alkaline, and the pH of 1% aqueous solution is 11.0, so it has a certain buffer alkalinity.

5 Safety: 4A molecular sieve is non-toxic and highly safe to the human body. No irritation to eyes and skin, no allergies, safe and reliable to use. After being washed, it is deposited in the soil, does not cause pollution, and can also improve the soil. 4A molecular sieve has no adverse effects on the ecology.

Storage

Room temperature, relative humidity not greater than 90% indoors: avoid water, acid, alkali, isolate air, and store in airtight.

Product Pictures

Regeneration

Removal of water: dry gas such as nitrogen, air, hydrogen, saturated hydrocarbon, etc. can be used to heat to 150-320℃ and pass into the molecular sieve bed under 0.3-0.5kg/m2 pressure for 3-4 hours, and then to the adsorber Pass in dry cold air for about 2-3 hours, isolate the air and cool to room temperature.

Removal of organic matter: the adsorbate can be replaced from the molecular sieve with water vapor, and then heated to (1). The regeneration can also be regenerated by superheated steam or inert gas at 200-350℃. Exposure to gases that produce explosive mixtures).

Removal of gaseous substances: It can be regenerated by decompression removal method.

Package

Packed in iron drums, (according to the product model) net weight 125kg, 135kg, 140kg, or according to user needs.

Factory information

Shanghai Xuefeng Molecular Sieve Co., Ltd. adopts the most advanced and fully automated assembly line molecular sieve production technology in China, and has positions for dosing, kneading, extrusion, drying, roasting and packaging. The main equipment includes pelletizing machine, hardening cylinder, kneader, extruder, belt dryer, rotary roasting furnace, vibrating screen, scale and other ancillary facilities. The production process parameters are all automatically controlled, and there is no paper recorder attached. , The results of the process parameters are comprehensively recorded, and at the same time, the operators of each position shall manually record the parameters every hour to ensure the traceability of the operation process. At the same time, the company pays attention to the inspection of intermediate products, and has set up sampling points for intermediate products in the ingredients, extrusion molding, and drying positions to ensure that the intermediate products meet the specified quality requirements.