Sodium sulfate (declassified: updated in 2022), the role of sodium sulfate in detergent. Reduce costs. Sodium sulfate is used as a filler in detergent industry, which generally accounts for about the total amount of detergent, and the consumption of the whole industry accounts for about the total amount of mirabilite in China. 1. The amount of neutral sodium sulfate used for printing and dyeing textiles will be further increased. China's bleaching and dyeing industry is developing at a faster and faster speed every year, and the consumption of sodium sulfate is also increasing accordingly. In 2005, the consumption of sodium sulfate in printing and dyeing industry in China was about10,000 tons. Industrial neutral sodium sulfate is the neutral value of sodium sulfate, which belongs to the first-class product and is mainly used in printing and dyeing, synthetic detergent and vinylon. 2. Synthesis of vinylon with neutral sodium sulfate; Preparation of vinylon spinning coagulant with neutral sodium sulfate 3 for textile industry. Neutral sodium sulfate washing industrial synthetic detergent-filler of synthetic detergent-neutral sodium sulfate. For example, sodium silicate and sodium tripolyphosphate are used in washing powder, and sodium sulfate used in washing powder is divided into sodium sulfate and crystalline mirabilite, which are used as fillers and detergents respectively to reduce the consistency of slurry, facilitate uniform mixing and transportation, and prevent caking. The content of washing powder varies with the variety of washing powder.
Sodium sulfate (declassified: updated in 2022), a special clarifier for Sanya glass, can be divided into soda ash method and mirabilite method according to different raw materials. The component A is mixed with molten soda ash or mirabilite and quartz sand in proportion, evenly stirred by a stirrer, and then added into a reverberatory furnace or a horseshoe flame furnace by a screw conveyor for melting reaction. Dry production of sodium silicate 1 sodium silicate dry-wet production. The specific process is that quartz sand and sodium salt (mainly Na _ 2 ConA _ 2 SO) are stirred evenly and melted at a high temperature of 1400℃. The production process includes calcination, leaching and component concentration.
Sodium sulfate (declassified: updated in 2022), a special clarifier for Sanya glass, can be pumped into the dyeing machine at one time, and the adding time should be controlled for more than ten minutes, but not less than ten minutes, otherwise it will cause flowers. Easy to clean, and the washability of replacing alkali is very good. After fixation with substitute alkali, at least one washing can be reduced compared with conventional dyeing. The principle and application of sodium sulfate as acid dye retarder are the same. If anhydrous sodium sulfate is used, the dosage is halved according to crystalline sodium sulfate.
The action principle of soda ash on concrete is: Since the purity is generally 3, what effect does soda ash have on concrete? 99% high, which belongs to salts, does little harm to concrete, and also belongs to electrolyte, which can accelerate the setting speed of cement, water and other substances in concrete. The function of adding soda ash to concrete and the function of soda ash on concrete are mainly to accelerate the setting speed of concrete, which can speed up the completion of the project.
Sodium sulfate (declassified: updated in 2022), a special clarifier for Sanya glass, is a harmful combustion product sulfide. Fire extinguishing method Firefighters must wear full-body fire-proof and gas-proof clothing and put out the fire in the upwind direction. When putting out the fire, move the container from the fire to an open place as much as possible. Fire prevention measures: eat and drink enough warm water, gargle and induce vomiting; See a doctor. Or drink milk or egg white. See a doctor. Dangerous characteristics have no special combustion characteristics. If you have difficulty breathing, give oxygen. Pyrolysis will produce toxic sulfide smoke. Inhale air and leave the scene to the fresh air.
Sodium sulfate is dissolved in the auxiliary cylinder, and added to the dyeing machine as usual (the cheese can also be directly put into the main cylinder through the lifting gauze cage, and then circulated for 10 minute after adding sodium sulfate, and then circulated water is added to the dyeing machine after the dye is dissolved in the auxiliary cylinder, and then the temperature is raised at the rate of 0.5℃ ~ 2℃/min, and when the temperature rises to 10 degree, the heat preservation is started./kloc Steps for using the fourth generation alkaline reagent.
In addition, the process has wide adaptability to dye varieties, less wastewater discharge and lower processing cost, and is especially suitable for small batch and multi-variety processing. Cold pad-batch dyeing with reactive dyes is a process in which fabrics are impregnated with dye solution containing reactive dyes and alkali agents at low temperature, and then pad-batch dyeing is carried out to complete the adsorption, diffusion and fixation of dyes. Suitable for thin fabrics.
The alkali substitute has good buffering capacity and can make the leveling effect better. High-concentration substitute alkali has less dosage, is convenient to obtain materials, and can reduce the generation of alkali spots. Substitute alkali is dispersive, which can effectively prevent the occurrence of colored flowers, and make the fiber bright in color, good in alkaline buffering capacity and extremely high in solubility, which is twice as high as that of soda ash. It has the effect of uniform cotton dyeing, can effectively prevent the occurrence of colored flowers, is low in price, can effectively reduce the cost, and saves more than 50% compared with soda ash. When soda ash and substitute alkali are exchanged, substitute alkali is used for proofing before production. The cost of alkali replacement agent is low, which can reduce the production cost. Multifunctional organic buffer compound alkali is composed of various alkalis and additives, and does not contain substances harmful to the environment and human body such as phosphorus APEO. After simple acid neutralization, it can be completely biodegradable, which meets the requirements of ecological textiles.