上田石灰製造 List of Products and Services

Quicklime is used to neutralize acidic wastewater discharged from factories and is also used to neutralize mining wastewater. At the same time, it has the effect of coagulating and precipitating dissolved heavy metals, and quicklime is used to remove acidic gases such as hydrogen chloride and sulfur oxides contained in exhaust gases from waste incineration plants. Furthermore, it is also used for the purification of water supply and sewage systems. 【Overview】 ■ Neutralization of acidic wastewater discharged from factories ■ Neutralization of mining wastewater ■ Coagulation and precipitation of dissolved heavy metals ■ Removal of acidic gases such as hydrogen chloride and sulfur oxides contained in exhaust gases ■ Purification of water supply and sewage systems *For more details, please refer to the related link page or feel free to contact us.

• Safety and consumables
• others

Among the five major elements of fertilizer, calcium and magnesium are made from lime. The "magnesia" in magnesite lime fertilizer refers to magnesium, which is a component of chlorophyll. It is related to the movement of phosphate and helps in the synthesis of fats. Lime contains a high amount of calcium and helps neutralize excess organic acids produced in the plant, promotes chlorophyll production, carbohydrate metabolism, and root growth. 【Overview】 ■ Lime contains a high amount of calcium ■ Neutralizes excess organic acids produced in the plant ■ Aids in chlorophyll production, carbohydrate metabolism, and root growth promotion *For more details, please refer to the related link page or feel free to contact us.

• Fertilizers and Pesticides

Weak soil lacks the strength to support structures such as buildings and roads. By mixing lime into this low-strength soil and compacting it with rollers, it can be transformed into high-strength soil, capable of firmly supporting buildings and roads. This process is called lime stabilization. Our company has developed a soil stabilization agent called "Solid Lime," which not only allows for ground improvement but also has stable quality that is widely used for strengthening ground with pile drivers, preventing circular sliding on slopes, handling surplus soil and backfill materials, and improving sludge. [Overview] ■ Developed soil stabilization agent "Solid Lime" ■ Capable of ground improvement ■ Widely used for: - Strengthening ground with pile drivers - Preventing circular sliding on slopes - Handling surplus soil and backfill materials - Improving sludge, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Soil improvement material
• Ground improvement materials
• Ground improvement

Quicklime is used for neutralizing wastewater generated in manufacturing plants, as well as for producing propylene oxide, which serves as a raw material for pigments and pharmaceutical intermediates, and epichlorohydrin, which is a raw material for synthetic rubber, adhesives, and paints. Additionally, soda ash (sodium carbonate), which is a raw material for glass and chemicals, is produced by the ammonia-soda process, where lime is used to recover ammonia during this process. It is also used in the paper industry for the regeneration of waste caustic soda. 【Overview】 ■ Quicklime (for caustic soda regeneration): Used for the regeneration of waste caustic soda ■ Quicklime (for light calcium carbonate): Used as a raw material for light calcium carbonate *For more details, please refer to the related links page or feel free to contact us.

• Safety and consumables
• others

Lime is widely used as a secondary raw material in steelmaking. Quicklime reacts with impurities such as silicon (Si), sulfur (S), and phosphorus (P) in iron within the converter or electric furnace, forming slag that removes these impurities from the iron. It also has a cooling effect. In the case of high-quality steel, further refining is done outside the furnace using quicklime after it exits the converter. 【Overview】 ■ 50% of the production of quicklime is used for steelmaking ■ Removes impurities from iron ■ Also has a cooling effect ■ In the case of high-quality steel - Further refining is done outside the furnace using quicklime after it exits the converter *For more details, please refer to the related links page or feel free to contact us.

• Safety and consumables
• others

At Ueda Lime, we manufacture high-quality "magnesium fertilizer" in accordance with the Fertilizer Control Law. This fertilizer, which has records of use dating back to the Edo period, is indispensable for Japanese agriculture. Please feel free to contact us when you need our products. 【Product Lineup】 ■ Granular Magnesium Carbonate Lime, Net 20kg ■ Atsumin Magnesium Lime, Net 20kg *For more details, please refer to the related link page or feel free to contact us.

• Fertilizers and Pesticides

The lime stabilization method is utilized not only for soft ground measures but also in various fields such as excavation work, residual soil management, sludge treatment, industrial waste disposal, and recycling. The procedure begins with the application of solid lime to the roadbed. The applied lime is then mixed with the ground, followed by a second application and mixing. After leveling, compaction is carried out. Our company has established a system to assist with a wide variety of construction projects, from investigation to design. Please feel free to contact us when needed. 【Construction Procedure】 (1) Application (2) Primary Mixing (3) Secondary Mixing (4) Leveling (5) Compaction *For more details, please refer to the PDF document or feel free to contact us.

• Soil improvement material
• Ground improvement
• Ground improvement materials

We will introduce a comparison between our product "Solid Lime (Calcium Oxide Based)" and cement-based solidifying agents. The mixing of cement-based solidifying agents is effective for sandy soils but difficult for clayey soils. However, Solid Lime generally performs well, especially in clayey soils. In terms of curing management, cement-based solidifying agents require prompt compaction after mixing, while Solid Lime allows for re-mixing and compaction, with the mixed soil being storable for 4 to 5 days. In the PDF, we present a clear comparison of rapid effectiveness and long-term stability using tables and graphs. Please download it for your review. 【Comparison Items】 ■ Effective target soils ■ Rapid effectiveness (initial strength) ■ Long-term stability ■ Mixability ■ Curing management *For more details, please refer to the PDF document or feel free to contact us.

• Soil improvement material
• Ground improvement

Solid lime (calcium oxide) reacts with water in the soil when added, transforming into slaked lime. At that time, it absorbs a large amount of water and simultaneously generates heat, causing moisture to evaporate. Due to this hydration and evaporation, approximately 80% of the product's weight is lost as water, resulting in a significant decrease in the soil's moisture content. During this hydration reaction, calcium ions generated by dissolution are adsorbed onto clay particles, causing the clay particles to exhibit aggregation, leading to soil granulation. This is referred to as an ion exchange reaction, and this action occurs relatively quickly, affecting the initial strength increase and changes in consistency. [Immediate Effects] - Reacts with water in the soil to become slaked lime when added - Absorbs a large amount of water and simultaneously generates heat, causing moisture to evaporate - A significant decrease in the soil's moisture content due to the loss of approximately 80% of its weight in water - Clay particles exhibit aggregation, leading to soil granulation (ion exchange reaction) - Affects the initial strength increase and changes in consistency *For more details, please refer to the PDF document or feel free to contact us.

• Soil improvement material
• Ground improvement

"Solid Lime" is a new soil stabilization treatment material developed by our company. We offer five varieties that can be selected based on soil type. Our lineup includes "quicklime-based," "slaked lime-based," "lime-based solidifying agents," "lime and cement-based," and "dust-free" options. In addition to these varieties, we can also provide cement-based solidifying agents upon request. Please feel free to contact us when needed. [Product Lineup] ■ Quicklime-based: SL-10 (powder), SL-11 (almond-shaped), SL-12 (lump) ■ Slaked lime-based: SL-20 (powder) ■ Lime-based solidifying agents: SL-34 (powder), SL-60 (powder) ■ Lime and cement-based: SL-40 (powder) ■ Dust-free: SL-50 (wet powder) *For more details, please refer to the PDF document or feel free to contact us.

• Soil improvement material
• Ground improvement

We would like to introduce our "Fluoride Adsorbent." It is made using slaked lime and cellulose nanofiber (CNF), providing permeability and underwater strength retention. Please feel free to contact us if you have any inquiries. 【Features】 ■ Permeability and underwater strength retention ■ Captures fluoride in wastewater and can be recycled as synthetic fluorite ■ Enables the reuse of defluorinated wastewater, allowing for effective use of water resources *If you would like a sample, please apply through "Contact Us." *For more details about the product, please check "PDF Download."

• Water Treatment
• others

Our soil stabilization material, "Solid Lime SL-34 (powdered)," is a lime-based solidifying agent. It is effective in solidifying sandy soils, silts, organic soils, and muddy soils, where conventional quicklime has had limited effects. It is suitable for a wide range of soil types and generates less heat during use compared to quicklime. Our lime-based solidifying agent does not contain cement. 【Features】 ■ Powdered form ■ Lime-based solidifying agent ■ Suitable for a wide range of soil types ■ Generates less heat during use ■ Does not contain cement *For more details, please refer to the PDF document or feel free to contact us.

• Ground improvement materials

Our product, "Solid Lime SL-11," is a quicklime-based soil stabilization material. It exhibits excellent stabilization effects with durability due to rapid and powerful dewatering and drying effects on high-water-content soft soils, as well as pozzolanic reactions. It is granulated to prevent dust generation, but due to its rapid reaction, it is effective for residual soil treatment. 【Features】 ■ Almond-shaped ■ Quicklime-based ■ Provides drying effects associated with rapid and powerful dewatering ■ Exhibits excellent durability in stabilization effects ■ Effective for residual soil treatment due to rapid reaction ■ Applicable soil types: silt, high-water-content clay, general soft soil, volcanic ash clay *For more details, please refer to the PDF document or feel free to contact us.

• Ground improvement materials

Our product, "Solid Lime SL-10," is a quicklime-based soil stabilization material. It exhibits excellent stabilization effects with durability due to rapid and powerful dewatering and drying effects, along with pozzolanic reactions, particularly in high-water-content soft soils. We can accommodate both bulk and big bag deliveries. 【Features】 ■ Powdered, quicklime-based ■ Exhibits excellent stabilization effects with durability due to rapid and powerful dewatering and drying effects, along with pozzolanic reactions ■ Numerous achievements in treatment at modification plants ■ Applicable soil types: general soft soils, silt, high-water-content clay, volcanic ash clay *For more details, please refer to the PDF document or feel free to contact us.

• Ground improvement materials

Our soil stabilization treatment material, "Solid Lime SL-50 (wet powder)," is an environmentally friendly product designed to prevent dust dispersion during application and mixing. Due to the pozzolanic reaction, strength gradually increases over a long period. The pH of the improvement material is around 12. Since the quicklime is processed in a wet state, there is no dust dispersion during application or mixing, making it suitable for improving low moisture content soils in areas where dust, such as residential neighborhoods, must be considered. 【Features】 ■ Wet powder ■ Dust-free ■ Prevents dust dispersion during application and mixing ■ Gradually increases strength over a long period due to pozzolanic reaction ■ pH of the improvement material is around 12 *For more details, please refer to the PDF document or feel free to contact us.

• Ground improvement materials

Our product, "Solid Lime SL-20 (powder form)," is a soil stabilization material based on hydrated lime. While it does not have the dehydration effect of quicklime, it provides long-term stabilization effects on low-moisture soft soils through pozzolanic reactions. Please feel free to contact us when you need it. 【Features】 ■ Hydrated lime based ■ Powder form ■ No dehydration effect like quicklime ■ Long-term stabilization effects through pozzolanic reactions ■ pH of improved soil is around 12 *For more details, please refer to the PDF document or feel free to contact us.

• Ground improvement materials

"Solid Lime" is a soil stabilization material that exhibits excellent durability and stabilization effects due to rapid and powerful dewatering accompanied by drying effects and pozzolanic reactions, particularly for high-water-content soft soils. In particular, "SL-34" is effective for various soils such as sandy soils, silts, organic soils, volcanic ash clay, mud, and sludge, where conventional quicklime has had limited effectiveness. It has the same rapid effectiveness as quicklime and offers solidification effects regardless of soil type due to significant pozzolanic reactions with other raw materials. It focuses on "modification" by approaching the optimal moisture content of the soil. 【Product Lineup】 ■ Lime-based solidification materials 　・SL-34 　・SL-60 ■ Quicklime-based 　・SL-10 (powdered) 　・SL-11 (almond-shaped) 　・SL-12 (lump) ■ Hydrated lime-based 　・SL-20 *If you would like a free sample, please fill out the inquiry form with your intended use and contact us. Please note that we may not be able to provide samples depending on the content conditions. Thank you for your understanding in advance. *For more details, please download the PDF or feel free to contact us.

• Soil improvement material