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2024-01-23

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Polyphosphoric acid

Polyphosphoric acid

2024-01-23

Polyphosphoric acid is a colorless transparent viscous liquid, corrosive, is a secondary inorganic acid corrosion items. Polyphosphoric acid is proton acid, can dissolve a variety of low molecular and high molecular organic compounds. In organic synthesis, it is used as a water loss agent, a cyclizing agent, an acylating agent, and is a catalyst or solvent for reactions such as condensation, cyclization, rearrangement, and substitution. Polyphosphates (PPE) are sometimes used to increase the solubility of polyphosphoric acid in organic solvents. Polyphosphoric acid is also used as a substitute for orthophosphoric acid and as an analytical reagent.

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How to choose a suitable method for the treatment of industrial phosphoric acid waste liquid?

How to choose a suitable method for the treatment of industrial phosphoric acid waste liquid?

2024-01-23

Choosing a suitable method for the treatment of industrial phosphoric acid waste liquid needs to consider a variety of factors, such as the concentration of waste liquid, emissions, the content of harmful substances, treatment costs, etc. The following are some considerations for choosing a suitable treatment: Concentration and treatment capacity of waste liquid: for high concentration industrial phosphoric acid waste liquid, chemical precipitation method, activated carbon adsorption method and other methods can be selected for treatment; for low concentration industrial phosphoric acid waste liquid, evaporation concentration method and other methods can be selected for treatment. At the same time, the treatment capacity is also an important consideration in selecting the treatment method, and it is necessary to select the appropriate treatment method according to the discharge amount of the waste liquid. Content of harmful substances: For industrial phosphoric acid waste containing harmful substances, it is necessary to select treatment methods that can remove these harmful substances, such as biological treatment, oxidation-reduction method, etc. Processing cost: Different processing methods require different equipment and materials, so processing cost is also an important consideration in selecting a processing method. When choosing a treatment method, it is necessary to consider its long-term operating costs, including equipment maintenance, renewal and other costs. Environmental protection requirements: When treating industrial phosphoric acid waste, relevant laws, regulations and standards should be followed to ensure that the treatment effect meets environmental protection requirements. Safety issues: When choosing a treatment method, it is also necessary to consider safety issues to avoid secondary pollution or harm to operators during the treatment process. In summary, the selection of a suitable method for the treatment of industrial phosphoric acid waste liquid needs to consider a variety of factors, including the concentration of waste liquid, emissions, the content of harmful substances, treatment costs, environmental protection requirements and safety issues. In practical applications, experimental methods can be used to compare various treatment methods to determine the optimal treatment scheme.

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How to deal with industrial phosphoric acid waste liquid?

How to deal with industrial phosphoric acid waste liquid?

2024-01-23

There are many ways to treat industrial phosphoric acid waste, and the following are some commonly used treatment methods: Chemical precipitation method: adding an appropriate amount of chemical coagulant to the industrial phosphoric acid waste liquid, so that the suspended solids and colloidal substances are condensed into large particles, and then removed by precipitation, filtration and other methods. Activated carbon adsorption method: using the adsorption performance of activated carbon, the organic matter and pigment in industrial phosphoric acid waste liquid are adsorbed on the surface of activated carbon to achieve the purpose of purifying the waste liquid. Biological treatment method: the metabolism of microorganisms is used to decompose the organic matter in industrial phosphoric acid waste liquid into simple inorganic substances, such as carbon dioxide, water, etc. Biological treatment methods can be divided into anaerobic biological treatment and aerobic biological treatment. Oxidation-reduction method: the use of oxidants or reductants to industrial phosphoric acid waste liquid in the organic oxidation or reduction reaction, so that it is converted into harmless substances or easy to handle substances. Evaporation concentration method: for the low concentration of industrial phosphoric acid waste liquid, evaporation concentration method can be used to evaporate the water in the waste liquid, leaving phosphate and other useful substances. Activated sludge method: the industrial phosphoric acid waste liquid is added to the activated sludge, and the organic matter and nutrient salt in the waste liquid are removed by the adsorption and oxidation of the activated sludge. The above methods can be selected and used according to actual conditions, and can also be used in combination according to needs. When treating industrial phosphoric acid waste liquid, relevant laws, regulations and standards should be followed to ensure that the treatment effect meets environmental protection requirements. At the same time, safety issues should be paid attention to to avoid harm to operators and the environment.

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What should be paid attention to during the operation of industrial phosphoric acid?

What should be paid attention to during the operation of industrial phosphoric acid?

2024-01-23

The following matters should be paid attention to during the operation of industrial phosphoric acid: Industrial phosphoric acid is an organic acid and corrosive, so operators should wear personal protective equipment, such as acid and alkali gloves, chemical protective glasses, etc. Industrial phosphoric acid should be stored in a cool, ventilated warehouse, away from fire, heat source, avoid direct sunlight. Industrial phosphoric acid should be stored separately from alkali, active metal powder and edible chemicals to avoid mixed storage. During the operation of industrial phosphoric acid, avoid contact with skin and eyes. Once in contact with skin and eyes, rinse with plenty of water immediately and seek professional medical help. When treating industrial phosphoric acid waste liquid, it should be classified, separated and treated in accordance with relevant regulations to avoid harm to the environment. The operator should regularly check whether the industrial phosphoric acid storage tank is leaking or damaged, whether the concentration and temperature are normal, and if there is any abnormality, it should be handled in time. During the operation, good ventilation conditions should be maintained to avoid the accumulation of harmful gases and dust. In the use of industrial phosphoric acid process, should avoid contact with alkali, active metal powder and other substances, so as to avoid the occurrence of chemical reactions. In the process of operation, if leakage, fire and other accidents occur, emergency measures should be taken immediately, such as flushing with a large amount of water, closing the valve, etc., and reporting to relevant departments for treatment as soon as possible. In short, it is necessary to pay attention to safety matters during the operation of industrial phosphoric acid, abide by operating procedures, and ensure personnel safety and environmental protection.

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What are the specific safety operations of industrial phosphoric acid?

What are the specific safety operations of industrial phosphoric acid?

2024-01-23

The specific safe operation of industrial phosphoric acid includes the following steps: Operators must be specially trained, strictly abide by the operating procedures, wear self-priming filter type gas mask, wear rubber acid and alkali resistant clothing, wear rubber acid and alkali resistant gloves. Keep away from flammable and combustible materials to avoid dust. Avoid contact with alkali and active metal powder. Handle lightly to prevent damage to packaging and containers. Equipped with leakage emergency treatment equipment. Empty containers may leave harmful substances. When diluting or preparing solutions, care should be taken to slowly add the acid to the water to prevent overheating and splashing. Operators must wear personal protective equipment and maintain good indoor ventilation. Store in a cool, ventilated warehouse. Keep away from fire and heat source. The packaging is sealed. It should be stored separately from alkalis, active metal powder and edible chemicals, and should not be mixed. Use explosion-proof lighting and ventilation facilities. It is forbidden to use mechanical equipment and tools that are easy to produce sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials. Regularly check whether the industrial phosphoric acid storage tank is leaking or damaged, and whether the concentration and temperature are normal. If there is any abnormality, deal with it in time to ensure the normal operation and use of industrial phosphoric acid storage tanks. In the process of using industrial phosphoric acid, contact with skin and eyes should be avoided. Once in contact with skin and eyes, rinse immediately with plenty of water and seek professional medical help. When operating industrial phosphoric acid, protective glasses, protective clothing, chemical protective gloves and other personal protective equipment should be worn to ensure the safety of operators. The area where industrial phosphoric acid is used should maintain good ventilation conditions to avoid the accumulation of harmful gases and dust. In the use of industrial phosphoric acid process, should avoid contact with alkali, active metal powder and other substances, so as to avoid the occurrence of chemical reactions. When treating industrial phosphoric acid waste liquid, it should be classified, separated and treated in accordance with relevant regulations to avoid harm to the environment. In the process of using industrial phosphoric acid, such as leakage, fire and other accidents, emergency measures should be taken immediately, such as washing with a large amount of water, closing the valve, etc., and reporting to the relevant departments for treatment as soon as possible.

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Yangzhou Ruiyang Chemical Co., Ltd.

Address: Wuqiao Town Industrial Park, Jiangdu District, Yangzhou City, Jiangsu Province

Mobile Phone: 13961490628 Manager Luan

Mailbox:sales1@yzryhg.cn

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