Chemical industry

Business Overview

Lear Chemical specializes in all kinds of chemicals and chemical products. It takes the continuous, stable and safe provision of high-quality chemicals and chemical products in China to effectively reduce the comprehensive procurement cost of customers as its own responsibility, and is committed to becoming an efficient and reliable part of the customer value chain. At the same time, we also serve Chinese customers on behalf of well-known foreign chemical and chemical products.

Water treatment chemicals

Water treatment chemicals

Water treatment agents are essential chemicals in the treatment of industrial water, domestic water, and wastewater. By using these chemicals, water can meet the necessary quality requirements. Its function is to inhibit the formation of scale and sludge, slow down the corrosion of metal materials by water, remove suspended solids and toxic substances in water, deodorize and decolorize, soften water quality, etc., thereby further improving the reuse rate of water resources and reducing sewage discharge. It is widely used in industrial sectors such as petroleum, chemical industry, metallurgy, transportation, light industry, textile, etc.
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Pulp&Paper Making Chemicals

Pulp&Paper Making Chemicals

Paper chemicals refer to the general term for various chemical agents and additives used in the papermaking process. It covers a wide range of contents, mainly including four categories: pulping chemicals, papermaking chemicals, paper processing chemicals, and pollution control chemicals. Its purpose is to improve the quality and production efficiency of paper, improve operating conditions, reduce manufacturing costs, increase economic benefits, and develop new paper varieties.
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Textile Chemicals

Textile Chemicals

Textile chemicals mainly refer to dyes and textile additives, and the development of textile chemicals is closely related to textile fibers. Textile chemicals are crucial for the upgrading and value enhancement of textiles. They not only make textiles more functional and contemporary, but also transform dyeing and finishing processes, making textiles more high-end and green.
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Tanning chemicals

Tanning chemicals

Tanning agent is an active substance with multiple functional groups, and its molecular structure contains at least two or more functional groups. Tanning agents can form intramolecular bonds with two or more interaction points in the collagen structure, while also breaking some of the intramolecular bonds in collagen and generating more new intermolecular crosslinks, resulting in a tanning effect; The tannin in the tanning agent combines with the active groups of skin collagen, generating new cross-links between adjacent peptide chains and molecules of collagen molecules, thereby strengthening the structural stability of collagen, improving the resistance to bending strength of leather, as well as the resistance to chemical agents and microorganisms. It also greatly increases the shrinkage temperature of collagen, enhancing the moisture and heat resistance stability of collagen, which is a tanning effect. According to chemical properties, tanning agents can be divided into inorganic tanning agents and organic tanning agents. Inorganic tanning agents are mainly mineral tanning compounds; Organic tanning agents can be divided into plant tanning agents, aldehyde tanning agents, oil tanning agents, synthetic tanning agents, resin tanning agents, etc.
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Mining chemicals

Mining chemicals

Chemicals used in mining can oxidize, reduce, dissolve, adsorb, and absorb metal minerals, transforming insoluble metal minerals in ores into soluble salts and transferring them into aqueous solutions, creating conditions for further extraction of these metals. Chemical mining utilizes the biochemical characteristics of microorganisms for solution mining, which is a new mining method that has rapidly developed in recent decades. It has been successfully applied to industrial production mainly for metal minerals such as uranium, copper, gold, and silver; Currently, it is developing towards metal minerals such as manganese, cobalt, nickel, vanadium, gallium, molybdenum, zinc, aluminum, titanium, thallium, and scandium.
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Detergent chemicals

Detergent chemicals

Detergent chemicals are products specially formulated for cleaning through the washing process. The main components are usually composed of surfactants, cleaning aids, and additives. There are many types of detergents, which can be divided into heavy scale detergents and light scale detergents according to the type of dirt removal; According to the appearance of the product, it can be divided into various forms such as powder, block, paste, slurry, and liquid.
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Plastic Additive Chemicals

Plastic Additive Chemicals

Plastic additives refer to chemical substances that are dispersed in the molecular structure of plastics and do not seriously affect their molecular structure, but can improve their properties or reduce costs; The addition of additives can promote plastics to improve the processability, physical properties, chemical properties, and other functions of the substrate, and increase the physical and chemical properties of the substrate.
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Paint&Coating Chemicals

Paint&Coating Chemicals

Paint and coating chemical additives are auxiliary raw materials used to improve the appearance, performance, and other aspects of coatings. The selection of resins and raw materials has already determined the performance of coatings, and the additives in coatings play a more important role in supplementing details. As needed, it will be designed in the formula to achieve a multiplier effect. Therefore, the ability to select and proficiently use additives is also the key to coating design formulas.
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Oil Driling chemicals

Oil Driling chemicals

Oilfield general chemical agents generally refer to chemicals that can be used in various construction processes such as oil drilling, oil production, gathering and transportation, and water treatment with the same chemical agent. For example, biopolymers, carboxymethyl cellulose, carboxymethyl starch, and polyacrylamide in polymer products can be used as drilling fluid treatment agents to increase viscosity (biopolymers, carboxymethyl cellulose), reduce filtration loss (according to methyl cellulose, according to methyl starch), and flocculate (polyacrylamide); Used as an additive for oil well cement, it can reduce the filtration loss of cement slurry (carboxymethyl cellulose, methyl starch); It can be used as a thickening agent (biopolymer, methyl cellulose, and polyacrylamide) in acid fracturing fluids; Polypropylene acyl skin can also be used as a flocculant in water treatment. Clay stabilizers are mainly used in drilling to suppress clay dispersion and control formation mud making; Used in oil extraction and water injection operations, mainly for clay anti swelling. The function of surfactants is to add surfactants to the drilling fluid to improve its thermal stability, lubricity, and anti sticking properties. They are also the main raw materials used for preparing drilling fluid lubricants and anti sticking agents. Adding surfactants to oil extraction fluids can improve their overall performance. Surface active agents can also be used for oil well cleaning, and a combination of various surface active agents can produce wax control and anti wax agents. Surfactants can also be used as crude oil demulsifiers, oil displacement agents, and fungicides.
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