Product Introduction:

Polyaluminum Chloride, abbreviated as PAC or Polyferric Aluminum Chloride, is an inorganic polymeric water treatment chemical with a relatively high molecular weight and a high charge. Its chemical formula is represented as: (Al₂(OH)ₙCl₆₋ₙ)ₘ (where n ranges from 3 to 5 and m ≤ 10). Based on production processes, the product can be categorized into roller-dried type, plate-and-frame filter-pressed type, and spray-dried type. All types exhibit a light yellow color, with slight variations depending on the effective content. Generally, its content is classified into three categories: polyaluminum chloride with over 30% content, polyaluminum chloride with over 28% content, and polyaluminum chloride with under 28% content.

Product Advantages:

Superior performance: Spray-dried PAC exhibits excellent stability, broad adaptability to various water sources, rapid hydrolysis, strong adsorption capacity, formation of large and dense flocs, fast sedimentation, low effluent turbidity, and good dewatering characteristics.

Wide applicability: Suitable for raw water with various levels of turbidity, and has a much broader effective pH range compared to traditional aluminum salts. It demonstrates excellent adaptability to variations in wastewater (or sewage) pH, temperature, turbidity, and alkalinity. After treatment, the effluent exhibits minimal pH change, along with low residual levels of aluminum and salts, which facilitates water reuse and recovery.

High efficiency and low consumption: PAC exhibits excellent water solubility and, during dissolution, undergoes a series of physicochemical processes—including electrochemical reactions, coagulation, adsorption, and precipitation—leading to rapid formation of large, highly active flocs that settle quickly. It delivers notably effective purification for high-turbidity water.PAC significantly enhances solid–liquid separation efficiency and improves sedimentation, filtration, and sludge dewatering performance, thereby shortening retention time in sedimentation tanks and increasing treated water output.Under identical treatment conditions, PAC achieves optimal flocculation with a dosage up to two-thirds lower than that required by traditional aluminum salts. Conversely, at the same dosage, PAC produces substantially lower residual turbidity than conventional aluminum salts, enabling equivalent treatment results at a reduced dose.Overall, PAC usage can be reduced by more than 30% compared to traditional coagulants, resulting in cost savings exceeding 40%.

Multifunctional: Capable of removing bacteria, odors, fluoride, aluminum, chromium, oils, turbidity, heavy metal salts, and radioactive contaminants.

Flexible application: Available in both solid and liquid forms, making it convenient for use in a variety of scenarios.

Service Industries:

Water treatment industry: Widely used for the purification of municipal drinking water, industrial process water, domestic sewage, and industrial wastewater.Products manufactured via the rotary drum drying process are commonly employed in wastewater treatment, production and domestic water treatment, and recirculating water reuse systems.Those produced using the plate-and-frame filter press process are typically used for drinking water treatment.In sludge treatment, it can be applied for sludge flocculation and sedimentation.

Papermaking industry: White polyaluminum chloride (PAC) has replaced aluminum sulfate as the neutral sizing precipitant in papermaking. It effectively promotes flocculation and sizing, enabling sizing performance in both acidic and neutral environments. This reduces system corrosion, facilitates white water treatment, and allows the use of inexpensive calcium carbonate filler, thereby enhancing paper brightness and fold resistance.

Textile industry: Widely used in laundry, as well as in the production processes of synthetic fibers such as acrylic, polypropylene, nylon, polyester-wool blends, and polyester-cotton blends, for static elimination and in post-dyeing finishing treatments.

Other industries: Polyaluminum chloride (PAC) produced via spray-drying technology can also be used as a pharmaceutical additive, food additive, chemical raw material, and cosmetic ingredient.