Silica gel as the most effective absorbent among other types of absorbents in the form of granules and broken with many applications is available in the market. Among the types of this material, we can mention its white, orange, blue, H and WS types, which are used in gas and petrochemical refineries as a factor in the separation of nitrogen, sulfur, hydrocarbons and other heavy metals.
This product has good advantages that its use is better than zeolite and alumina as moisture absorbers. The high ability of this product to absorb at low temperature will make it popular among other silica gels, so that at low temperature, the amount of water vapor pressure and absorption ability will be used.
This material has the ability to regenerate in such a way that it loses its moisture by heating up to 140 degrees. One of the first uses of silica gel is its use in the First World War, which could absorb water and gas in tear gas masks. During the Second World War, the table was used to protect from moisture with high octane and to prevent the occurrence of moisture in penicillin. This material also has the ability to absorb moisture up to 40% of its weight and is used in industries such as gas, oil, petrochemical, medicine and transportation.
This substance is produced on an industrial scale as a mixture of sulfuric acid with sodium silicate and silicon dioxide will be formed. The structure of this product is three-dimensional and it is an odorless, non-flammable and non-toxic substance that will not release gas and cause metal corrosion.
It also has a fixed structure of its own, which can be dissolved in water and dissolves in hydrofluoric acid. Silica gel also has the ability to recycle itself, and its performance is such that after each regeneration, it will have a 5-10% drop in performance. The temperature that will be effective in this process is 25 degrees Celsius, and at higher temperatures, its performance will decrease.
At lower humidity, the particles absorb the available vapor pressure and the vapor pressure increases. Larger particles of this material will also absorb moisture.
Silica gel is classified in different types according to the size, and its common dimensions are 1 to 3 mm, 3 to 5 mm. Among its other salient points, we can mention the classification of silica gel using an indicator.
This type will be produced in a colorless form, and its common dimensions are 1 to 3 mm and 3 to 5 mm in 25 kg packages and sachets.
we can mention its use in hydrocarbon, gas and liquid recycling. Since colorless type can be detected in moisture absorption, a moisture indicator can be used.
The combination of colorless type with its blue type in the amount of 10% or orange in the amount of 5% can be used to help detect moisture.
Blue colored silica gel, since it contains cobalt chloride in its structure as an indicator, will turn pink after absorbing moisture. After reviving, its color will change to blue.
One of the main other uses of silica gel is its orange color, in which methyl will be used as an indicator. One of the main features of orange is its non-toxic, odorless and harmless nature.
One of the applications of this type of silica gel is its use in the Gar refinery, which is used to recover and separate liquid hydrocarbon from natural gas and as a catalyst in gas processing and refining. The structure of this material has suitable physical properties and also has high strength.
WS type is used as an effective agent in absorption and processing in gas refining, and in general, this product has a high absorption increase, which is actively used among other adsorbents.
Silica gel has many applications in various industries, the following can be mentioned among its main applications:
Oil, gas and petrochemical industries
Drug and pharmaceutical industries
Electricity and telecommunication industries
Use in pet nests
Military and aviation industries
Packaging and transportation industries
Application in ancient works
Application in jewelry polishing
Leather, bag and shoe industries
This product is used as an effective factor in absorbing moisture in order to separate unwanted particles in gas pressure transmission lines, which can be used as an effective factor in separating sulfur and hydrocarbon. The two common types of this product are H and WS, which have many uses.
One of the most widely used in gas refining is the H type. This type is used to recover and separate liquid hydrocarbons and catalysts in gas processing and refining, and in terms of structure, it has special physical capabilities.
WS type of this product will also be used in production to absorb natural gas and catalyst. In general, the WS type of this product can be used to create a protective layer in the catalyst and molecular reservoir.
One of the other major uses of this product is packaging in medicine.
The use in the production line is very important and has a good ability to absorb moisture and produce medicine, especially antibiotics.
A small container in medicine packaging has many uses, which is produced with different specifications according to the dimensions. This product will be used in the lid of medicine, and one of the main uses of this product can be mentioned in the lid of vitamin C tablets. The type of drug lid is in the form of polymer material, which, in addition to protecting the drug against moisture and breakage, can reduce related costs.
This product is used to absorb the moisture of animal excrement, and one of its main effective factors is to reduce the odor of excrement. This material will be available in the market in 1 and 2 kg packages.
Since it is very important to prevent the penetration of moisture on military equipment, the use of silica for this purpose is of great importance. A humidity indicator can also be used to determine humidity.
Silica gel is also used in bags and shoes as an effective factor in preventing moisture penetration. 10 gram bags can absorb 4 grams of water by 40% of its weight. Among the other uses of this material, we can mention the surface absorption of feed and the protection of electrical devices.
This product is a non-toxic and non-flammable material that is used in cases such as hydrogen fluoride, strong bases and oxygen difluoride.
During work, drinking and smoking should be avoided, and in contact with the skin, it should be washed with water for 5 minutes. When working, you should wear glasses to prevent contact with the eyes.
The packaging of silica gel is in bulk and 25 kilo bags, and it is also produced in the form of sachets. Considering that has a high absorption power, it should be kept in a place free from any moisture.