• 酸性亚硫酸盐法木浆氯化处理进行了研究。

    Pretreatment with alkali before chlorination was studied in bleached acid sulfite poplar pulp production.

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  • 亚硫酸盐法制浆过程活性化学物质二氧化硫硫酸以及酸性亚硫酸钙

    The active cooking chemicals in the sulfite process are sulfur dioxide, sulfurous acid, and calcium bisulfite.

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  • 亚硫酸盐以造纸废液主要原料通过络合不同金属阳离子得到相应木质素磺酸盐(LSS)。

    Using waste liquor of sulfite process as main material and complexing different kind of metal positive ions, the corresponding lignosulfonate (LSS) are prepared.

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  • 1890年起直到1937年硫酸盐取代之前,亚硫酸盐制浆一直是应用最广泛的制浆

    Since about 1890, the sulfite process has been well established pulping process until about 1937, when it was superseded in importance by the sulfate process.

    youdao

  • 1890年起直到1937年硫酸盐取代之前,亚硫酸盐制浆一直是应用最广泛的制浆

    Since about 1890, the sulfite process has been well established pulping process until about 1937, when it was superseded in importance by the sulfate process.

    youdao

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