Multi-core aluminium-poly (silicon-phosphorus) aluminum chloride and production method thereof

Abstract

The invention relates to a water treatment agent, in particular to a surface water treatment agent used for drinking water, which adopts multi-core aluminium-poly (silicon-phosphorus) aluminum chloride. The water treatment agent is prepared by taking industrial synthetic hydrochloric acid, aluminium hydroxide, calcium aluminate powder, phosphate rock powder or phosphorus pentoxide, silicon oxide and water as raw materials, and becomes liquid product after liquid residue reparation. As the molecular weight, the quantity of electric charge and the intensity of multi-core aluminium are all larger than those of poly-aluminum chloride, the coagulation property thereof is much better than that of the common poly-aluminum chloride, and the adding amount can be saved by 30 to 50 percent. The water treatment agent has good fluidity, stable performance and long-term storage. As the technology is simple and the cost performance is high, the water treatment agent can be industrially produced in larger scale.

Description

technical field

[0001] In the International Patent Classification, the present invention belongs to the treatment subclass of water, waste water, sewage or sludge, that is, C02F, and particularly relates to a treatment agent for drinking water and a manufacturing method thereof. Background technique

[0002] Since ancient times, water treatment methods include natural sedimentation, sand filtration and alum flocculation. In the 1960s, there was a polyaluminum chloride water treatment agent with good performance. my country is the largest producer of polyaluminum chloride in the world, and its product quality and performance are in an advanced position in the world. However, with economic development, water pollution is becoming more and more serious, which increases the difficulty of water purification treatment. The water treatment agent-coagulant produced by traditional technology is difficult to meet the purification requirements. Especially with the improvement of peop...

Examples

Embodiment 1

[0042] Example 1: Take 100 kg of industrially synthesized hydrochloric acid and add it to the reaction pot, add 50 kg of phosphate rock powder under stirring, then add 130 kg of aluminum hydroxide, heat with steam, control the temperature of the reaction pot within the range of 80°C-120°C, react for 2 hours, and then Cool naturally to 50-70°C, then add 65kg of calcium aluminate powder and 5kg of silicon oxide for reaction, control the temperature in the pot within the range of 80-110°C, react for 3 hours, and then separate the liquid slag. In this example, filter press is used , to obtain 990kg of filtrate finished product, and put it into storage.

Embodiment 2

[0043] Example 2, take 200kg of industrially synthesized hydrochloric acid, add it to the reaction tank, add 170kg of phosphate rock powder under stirring, add 70kg of aluminum hydroxide, steam heating, the temperature of the pool liquid is controlled within the range of 80-120°C, react for 5 hours, and then Cool naturally to the range of 50-70°C, then add 130kg of calcium aluminate powder and 10kg of silicon oxide, control the temperature of the pool liquid at 80-110°C, continue the reaction for 2 hours, and separate the liquid and slag. In this example, centrifugation is used. Get 1000kg of finished filtrate, and put it into storage.

Embodiment 3

[0044] Example 3, get 100kg of industrially synthesized hydrochloric acid, add it to the reaction tank, add 100kg of phosphate rock powder, 100kg of aluminum hydroxide while stirring, steam heating, control the temperature of the pool liquid at 90-110°C, react for 2.5 hours, then cool to 60°C, Then add 90kg of calcium aluminate powder, 6kg of silicon oxide, and control the temperature of the pool liquid at 90°C. After reacting for 3 hours, press filter the filter residue to obtain 990kg of finished filtrate, which is divided into warehouses.

technical field

[0001] In the International Patent Classification, the present invention belongs to the treatment subclass of water, waste water, sewage or sludge, that is, C02F, and particularly relates to a treatment agent for drinking water and a manufacturing method thereof. Background technique

[0002] Since ancient times, water treatment methods include natural sedimentation, sand filtration and alum flocculation. In the 1960s, there was a polyaluminum chloride water treatment agent with good performance. my country is the largest producer of polyaluminum chloride in the world, and its product quality and performance are in an advanced position in the world. However, with economic development, water pollution is becoming more and more serious, which increases the difficulty of water purification treatment. The water treatment agent-coagulant produced by traditional technology is difficult to meet the purification requirements. Especially with the improvement of peop...

Examples

Embodiment 1

[0042] Example 1: Take 100 kg of industrially synthesized hydrochloric acid and add it to the reaction pot, add 50 kg of phosphate rock powder under stirring, then add 130 kg of aluminum hydroxide, heat with steam, control the temperature of the reaction pot within the range of 80°C-120°C, react for 2 hours, and then Cool naturally to 50-70°C, then add 65kg of calcium aluminate powder and 5kg of silicon oxide for reaction, control the temperature in the pot within the range of 80-110°C, react for 3 hours, and then separate the liquid slag. In this example, filter press is used , to obtain 990kg of filtrate finished product, and put it into storage.

Embodiment 2

[0043] Example 2, take 200kg of industrially synthesized hydrochloric acid, add it to the reaction tank, add 170kg of phosphate rock powder under stirring, add 70kg of aluminum hydroxide, steam heating, the temperature of the pool liquid is controlled within the range of 80-120°C, react for 5 hours, and then Cool naturally to the range of 50-70°C, then add 130kg of calcium aluminate powder and 10kg of silicon oxide, control the temperature of the pool liquid at 80-110°C, continue the reaction for 2 hours, and separate the liquid and slag. In this example, centrifugation is used. Get 1000kg of finished filtrate, and put it into storage.

Embodiment 3

[0044] Example 3, get 100kg of industrially synthesized hydrochloric acid, add it to the reaction tank, add 100kg of phosphate rock powder, 100kg of aluminum hydroxide while stirring, steam heating, control the temperature of the pool liquid at 90-110°C, react for 2.5 hours, then cool to 60°C, Then add 90kg of calcium aluminate powder, 6kg of silicon oxide, and control the temperature of the pool liquid at 90°C. After reacting for 3 hours, press filter the filter residue to obtain 990kg of finished filtrate, which is divided into warehouses.