Catalyst carrier
The catalyst carrier, also known as support, is one of the components of the load-type catalyst, and is the skeleton of the catalyst active component that supports the active component to disperse the active component and also increases the strength of the catalyst. But the carrier itself does not generally have a catalytic activity.
Catalysts prepared with active alumina carriers have higher activity and activity stability compared with similar products, and are more suitable for use under harsh conditions of high temperature, high pressure, high air speed, and high water-gas ratio. White spherical material, special process production, because of the unique skeleton structure, so with the active component affinity, the product micro pore distribution is uniform, suitable pore size, large pore capacity, high water absorption rate, small accumulation density, good mechanical performance, with good stability. Suitable for a catalyst carrier. The active alumina energy and the catalyst active component react to disperse the catalyst active component into the carrier, providing an effective specific surface area and a suitable pore structure for the active component to improve the thermal stability and anti-toxic properties of the catalyst.
Defluoridation
Activated alumina has good physical performance, high strength, non-toxic and tasteless, the specific surface area of about 320m2/g makes activated alumina have a large contact area, thus good ion exchange capacity, pore capacity of above 0.4cm3/g makes it a high adsorption capacity, because it is easy to regenerate, long life, relatively cheap cost, is an effective fluorine removal method, is an economical and practical method. Active aluminum removal removing fluorine ions is divided into two roles, adsorption and ion exchange.
Detergent
Zeolite
The detergent industry is the largest application field of synthetic zeolite. In the 1970 s, the ecological environment deteriorated because the use of sodium triphosphate seriously polluted the water body. Out of environmental protection requirements, people began looking for other washing aids. After verification, synthetic zeolite has a strong chelation ability for Ca2 +, and also produces co-precipitation with insoluble dirt, contributing to decontamination. Its composition is similar to the soil, no pollution to the environment, but also has the advantages of "no acute or chronic poisoning, no distortion, no carcinogenic, and no harm to human health".
Soda Ash
Before the artificial synthesis of soda ash, it was found that after some seaweed were drying, the burned ash contained alkali, and could be soaked in hot water for washing. The role of soda in washing powder is as follows:
1. Soda ash plays a buffer role. When washing, soda will produce sodium silica with some substances, sodium silicate can not change the ph value of the solution, which plays a buffer effect, can also maintain the alkaline amount of the detergent, so it can also reduce the amount of detergent.
2. The effect of soda ash can make the suspension force and the stability of foam, and the hydrolysis siliceous acid in water can improve the decontamination ability of washing powder.
3. Soda ash in the washing powder, has a certain protection effect on the fabric.
4. Effect of soda ash on properties of pulp and washing powder. Sodium silicate can regulate the fluidity of the slurry, but also can increase the strength of the washing powder particles, let it have uniformity and free mobility, improving the solubility of the finished product, placing the laundry powder lumps.
5. Soda ash play an anti-corrosion role, sodium silicate can prevent phosphate and other substances on metals, and indirectly protect.
6. With the effect of sodium carbonate, its sodium carbonate with cough softening shows hard water, which can remove the magnesium salt in the water.
Related products: JZ-D4ZT zeolite; JZ-DSA soda soda; JZ-DSS sodium silicate
Deodorization
Oil-water separation by adsorption method is to use oil-friendly materials and absorb dissolved oil and other dissolved organic compounds in wastewater. The most commonly used oil absorbing material is active carbon that adsorbs dispersed oil, emulsified oil and dissolved oils in wastewater. Due to the limited adsorption capacity of activated carbon (generally 30~80mg/g)), high cost and difficult regeneration, and usually used only as the last stage treatment of oily wastewater, the effluent oil content mass concentration can be reduced to 0.1~0.2mg/L. [6]
Because activated carbon requires high pretreatment of water and expensive activated carbon, activated carbon is mainly used to remove trace pollutants in wastewater to achieve the purpose of deep purification.
Water purification and wastewater treatment
Waste water complex composition, water quality changes, deep color color, large concentration, difficult treatment. The treatment methods mainly include oxidation, adsorption, membrane separation, flocculation, biodegradation, etc.These methods have advantages and disadvantages, where activated carbon can effectively remove the chroosity and COD. of wastewater Activated carbon treatment wastewater has been studied at home and abroad, but most of them are coupled to other processes. Active carbon adsorption is mostly used for deep treatment or using activated carbon as the carrier and catalyst, and few studies use activated carbon to treat high concentration wastewater alone.
Activated carbon has a good discoloration effect on the wastewater. The discoloration rate of dye wastewater increases with increasing temperature and pH does not affect the effect of dye wastewater.
Humidity indicator
The main component of blue silica gel is cobalt chloride, which has strong toxicity and has a strong adsorption effect on water vapor in the air. At the same time, it can show different colors through the number of cobalt chloride crystal water changes, that is, the blue before moisture absorption gradually changes to light red with the increase of moisture absorption.
Orange silica gel is environmentally changing silica gel, does not contain cobalt chloride, more environmental friendly and safe.
Use
1. is mainly used for moisture absorption and rust prevention of instruments, instruments and equipment under closed conditions, and can directly indicate the relative humidity of the environment through its own color from blue to red after moisture absorption.
2. is used in conjunction with an ordinary silica gel desiccant to indicate the moisture absorption of the desiccant and to determine the relative humidity of the environment.
3. it is widely as a silica gel desiccant for packaging used in precision instruments, leather, shoes, clothing, household appliances, etc.
