The first in the sulfuric acid industry 

Portable acid concentration analyzer

Li Zhenglai Technology spent three years independently developing this product, completely ending the era where the concentration of sulfuric acid was measured through manual titration. The result is available in just 60 seconds, with an accuracy of 0.05%. No professional operation is required - it is an essential tool for the intelligent era of the sulfuric acid industry.

Measurement of sulfuric acid concentration

Are you still troubled by these issues?

Slow response and low efficiency

The traditional acid-base titration method requires approximately 20-30 minutes for each measurement. During the start-up of the equipment, in abnormal conditions, or when the online analyzer malfunctions, it fails to meet the urgent need for rapid measurement, thereby significantly affecting the efficiency of production decision-making.

The error is relatively large and the reliability is poor

The repeatability error of manual titration can be as high as ±0.2%. It is greatly influenced by the operator's skill level and environmental factors. The results obtained by different operators vary significantly, making it difficult to ensure the consistency and accuracy of the data.

Depend on professionals

The titration operation requires professional training for the analysts to operate and calculate. Ordinary staff cannot handle it and the labor cost is high. Moreover, there is a risk of talent shortage.

Significant safety hazards exist

Due to the failure to measure the acid concentration in a timely and accurate manner, sulfuric acid plants often experience smoke incidents and equipment corrosion incidents during the start-up process, causing serious safety risks and economic losses to the enterprises.

Industry reality

As the world's largest producer of sulfuric acid, China's total sulfuric acid output is expected to reach 128 million tons by 2025, with total production capacity exceeding 155 million tons. Under such a huge industrial scale, the concentration analysis process is still generally at the stage of manual operation, which has become a key bottleneck restricting the intelligent upgrading of the industry.

Breakthrough Innovation: Non-contact Measurement Technology

PSA-100 Portable Acid Concentration Analyzer

The first portable concentration measurement device in the sulfuric acid industry that adopts non-contact technology

Li Zhenglai Technology (Chongqing) Co., Ltd. spent three years conducting technical research and development and iterations. They successfully developed a portable acid concentration analyzer based on the non-contact measurement principle. This product completely revolutionized the measurement mode of the traditional acid-base titration method. The measurement time for sulfuric acid concentration was reduced from 20-30 minutes to just 60 seconds, the measurement resolution was increased to 0.01%, and the repeatability reached ±0.05%.

Non-contact sensing, automatic temperature compensation, PTFE corrosion resistance, touchscreen operation, data storage and export

Six core advantages, redefining acid concentration measurement

Ultra-fast measurement

A complete measurement can be completed in 60 seconds, which is 20 times faster than the traditional titration method.

High precision

The concentration resolution is 0.01%, and the repeatability is ±0.05%, far exceeding the level of manual titration.

Easy to operate

Touchscreen interface, no need for professional skills. Ordinary employees can operate it proficiently.

Safe and reliable

PTFE measuring cup with threaded sealing design, completely eliminating the risk of sulfuric acid leakage.

Temperature compensation

Built-in temperature compensation function, real-time correction of acid temperature, and direct reading of accurate concentration

Intelligent Management

Support personnel management, historical data storage, and export in xlsx/PDF formats

Compared in a comprehensive manner with traditional measurement methods

The intelligentization of the sulfuric acid industry is an inevitable trend. 

155 million

In 2025, China's total sulfuric acid production capacity will increase by 9.2% compared to the previous year. 

128 million

The total output of sulfuric acid in China in 2025 will increase by 5.3% compared to the previous year. 

40%+

The proportion of China's sulfuric acid production capacity in the global total 

Level 4

Digital automation development goal: Intelligence has become an industry consensus 

With the explosive growth in the demand for sulfuric acid from the new energy industry (such as lithium iron phosphate, wet-process nickel smelting, etc.) and the development of sulfuric acid production facilities towards larger scale and intelligence, rapid and accurate concentration measurement has shifted from being "nice to have" to a must-have in the sulfuric acid industry. The traditional manual measurement method is no longer able to meet the efficiency and safety requirements of modern sulfuric acid production. 

Broadly applicable, covering multiple scenarios

Detection of finished acid produced from sulfuric acid synthesis or pyrite ore synthesis 

Drying acid, one-stage acid absorption, two-stage acid absorption concentration monitoring 

Measurement of acid concentration in the waste heat recovery system 

Emergency detection for equipment startup / abnormal conditions 

Sulfuric acid measurement in the chemical, electroplating and pharmaceutical industries 

Precision analysis of research institutions and teaching experiments 

Environmental Monitoring and Wastewater Treatment 

Production and Testing of New Energy Battery Materials 

Specializing in the sulfuric acid industry, a reliable partner

Rilinai Technology (Chongqing) Co., Ltd. was established in April 2022. It is a technology enterprise specializing in measuring instruments, specialized equipment, and digital solutions for the sulfuric acid industry. The company has gathered 35 professionals who are passionate about the sulfuric acid industry. Among them, 54% are researchers, and there is 1 doctor. The company has cumulatively invested 2.42 million yuan in research and development.

Since its establishment four years ago, the company has launched six pioneering products: portable acid concentration analyzer, high-temperature acid concentration analyzer, condensation acid automatic discharger, water vapor leak detector, and sealed sampling device. It has served 141 sulfuric acid plants worldwide, with a total production capacity of 63.6 million tons. The products have been exported to Africa, Europe, and Southeast Asia. The company has submitted 3 patent applications for invention, 7 patent applications for utility model (6 have been authorized), and obtained 2 software copyrights.

141+

Serving sulfuric acid plants

63.6 million tons

Coverage of production capacity scale

7 models

Innovative product

54%

Ratio of R&D personnel

Launch the intelligent new era of sulfuric acid concentration measurement

Say goodbye to the cumbersome and error-prone manual titration, and make every measurement precise, efficient and safe. The second-generation PSA-100 portable acid concentration analyzer is waiting for you to experience.