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In China, 90% of sodium hydrosulfite(Na2S2O4) projects and accompanied with SO2 devices, sodium pyrosulfite(Na2S2O5) projects, sodium sulfite(Na2SO3) projects, and sodium formate(HCOONa) projects are designed, constructed, and transformed by us. Some cases as following: India SHS project, Hubei Yihua Chemicals project, Neimeng Yihua Project, CNSG ANHUI HONG SIFANG CO., LTD. Project, Henan Anhua Project, Jiangxi Hongan project, Shandong Yiseng project, Luxi Chemicals project, Hubei Qingjiang project, Nejiang Chuanwei project, etc. All the projects were successful at the 1 st starting up system.

Sodium hydrosulfite system design has perfect 3 waste treatment solutions: after pre-treatment+Anaerobic treatment + aerobic treatment, waste water will meet discharge standard. After condensation+alkali washing+combustion to remove smell, waste gas will meet discharge standard. Solid waste will be treated precise separation+recovery by-product+combustion of orginic to recover SO2 . Our technology achieves solid waste is treated completely, and waste water and water gas all meet the discharge requirements. What's more, SO2 , sodium metabisulfite, sodium sulfite, sodium formate systems all achieve no waste water discharge.

We have a professional technical team, technical engineers all have been engaged in sodium hydrosulfite, sulfur dioxide, sodium metabisulfite, sodium sulfite, sodium formate production system management, design and construction for long time. We have good cooperation among us, and we are skilled and efficient in work, and we enjoy a good reputation in the field.

We have been making continuous improvement for feed ratio, equipment selection, layout, material transfer, automation and other aspects; therefore, reasonable layout, convenient operation, and high degree of automation are benefits for the system. By improving SHS feed ratio, synthesis, drying, neutralization etc. units, system safety and stability have been also increased. By improving burning process in the burner, burning temperature is stable, complete combustion, and no tempering of the gas pipe, this makes safer, and more reliable.

Providing best service for design, installation, debugging, training, starting up the system, etc. Providing long-term consultant service.