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亞硫酸鹽(鎂基)葦紙漿用熱碱法、冷碱法、酸法精製与各法之聯合,使其α-纖維素含量和糠醛值適於人造絲漿的要求。熱碱法、冷碱法精製,對提高α-纖維素含量是有效的,但對降低糠醛值至5％以下沒有效用。酸法(60％ H_2SO_4)对提高α-纖維素、降低糠醛值是有效的。对於降低灰分適當的熱碱法是有效的,但有其極限值,灰分僅能達到0.307％,已接近人造絲漿的要求。如用適當的酸法與熱碱法之聯合,對提高α-纖維素含量、降低糠醛值与灰分是最有利的。此葦漿与Jayme和Biefeld所用工業草漿及Jayme和Nimetullah所用在温和條件下蒸煑之燒碱法小麥桿漿比較,对於各種精製處理更為抗拒。
The sulfite (magnesium based) pulp is combined with the hot alkali process, cold alkali process, and acid process to make the alpha-cellulose and furfural values suitable for rayon requirements. The hot alkali method and the cold alkali method are effective for increasing the α-cellulose content, but are not effective for reducing the furfural value to 5% or less. The acid method (60% H_2SO_4) is effective for increasing α-cellulose and reducing the value of furfural. It is effective to reduce the ash content of the hot alkaline method, but with its limit value, the ash content can only reach 0.307%, which is close to the requirements of rayon. With the combination of the appropriate acid and hot alkali methods, it is most advantageous to increase the alpha-cellulose content and reduce the furfural value and ash content. This reed pulp is more resistant to various refining treatments than industrial pulp used by Jayme and Biefeld and Jayme and Nimetullah used in soda method wheat bran distilled under mild conditions.