Thes study and bring forward a new formula for acidbleaching of barite powders containing impurities such as fluorite and calcite.
研究并提出用稀盐酸、硼酸和反应助剂作为含有萤石、方解石杂质的重晶石粉体酸漂增白的新配方。
2
Low temperature bleaching of wool with hydrogen peroxide using katalase as catalyst under acid condition has been studied as well as the related factors influencing it.
研究了在酸性条件下，以酶为催化剂，羊毛双氧水低温漂白工艺及相关因素的影响。
3
This paper studied the TCF bleaching of rice straw ammonium sulfite pulping, which contains of oxygen-alkali bleaching, acid treatment and hydrogen peroxide bleaching.