Soybean fiber intolerance due to caustic sodaconcentration, it can only use natural soap for washing powder.
因大豆纤维不耐浓烧碱，故只能使用天然皂粉进行洗涤。
2
It was pointed out that aluminate hydrate(AH) wash liquor was favor to red mud washing only if its total sodaconcentration was less than that of red mud wash liquor.
指出只有当氢氧化铝洗液中全碱浓度小于或 等于赤泥洗液中全碱浓度时，才有利于赤泥洗涤；
3
The concentration of discharge caustic soda depends mainly on the pressure of fresh steam and vacuum.