A study on the sulfonation condition of lignin and paper-making black liquor was made, and the conditions were determined.
对造纸黑液及酸析木质素的磺化进行了研究，得出了黑液及酸析木质素磺化的工艺条件。
The lignosulfonate water reducing agent was prepared via oxidation and sulfonation of wheat straw alkali lignin.
以麦草碱木素为原料，采用氧化磺化法，制备了磺化碱木素减水剂。
The lignosulfonate water reducing agent was prepared via oxidation and sulfonation of wheat straw alkali lignin.
以麦草碱木素为原料，采用氧化磺化法，制备了磺化碱木素减水剂。
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