Micro-Electronics

Recovery of TMAH

TMAH (Tetramethylammonium hydroxide) plays a crucial role in industries such as semiconductors, optics, and chemistry, facilitating industrial development.

Safety and environmental protection considerations are essential for the responsible use of TMAH.

Membrane electrolysis and bipolar membrane processes are today's major production processes in which Lanran's products can play a key role.

Lanran can propose individualized products according to customer's demand.

Organosilicon and Semiconductor Wastewater Solutions

LANRAN provides customized wastewater solutions for the organosilicon and semiconductor industries.

Wastewater from these sectors contains suspended solids, dissolved silica particles, and contaminants.

LANRAN's advanced treatment technologies, including ED and BMED provide solutions facilitate resource recovery and minimize environmental impact.

LANRAN's approach ensures sustainable operations for organosilicon and semiconductor manufacturers.

Typical Project - Organosilicon and semiconductor industry (2021)

Process/Technique: Production of sulphuric acid and sodium hydroxide from sodium sulphate

Starting year: 2021

Processing scale: white carbon black washing water, 150 t/day
Effluent: pure water, 117t/h, conductivity≤100uS/cm; H2SO4, 98g/L, 0.18m³/h; NaOH, 80g/L, 0.18m³/h
Energy consumption: 1700-2200 kWh/(t·NaOH)
Cost of white carbon black washing water: about 3 RMB/t