以工业萘和粗甲基萘为主要原料合成萘系高效减水剂

工业萘、粗萘、甲基萘或萘残油等均可作为制取萘高效减水剂的原料。目前 ,其主要原料工业萘出现全球性紧缺 ,价格不断上扬1] 。而攀枝花粗甲基萘比工业萘便宜许多 ,如果能用粗甲基萘代替工业萘生产萘系高效减水剂 ,可降低成本 ,使之具有更大的市场竞争力。前期实验表明单独使用粗甲基萘制备的减水剂 ,其减水率虽然较高 ,但产品含气量较大且引气不均匀 ,使混凝土抗压强度达不到要求。为了将工业萘和粗甲基萘混合物作为原料制备高效减水剂 ,并尽量用粗甲基萘替代工业萘 ,我们做了大量的实验 ,寻求到了工业萘和粗甲基萘混合物作为原料制备高效…

EXPERIMENT RESEARCH ON THE SYNTHESIS OF NAPHTHALENE HIGH-RANGE WATER REDUCING AGENT WITH INDUSTRIAL NAPHTHALENE AND CRUDE METHAL-NAPHTHALENE

This paper was focused on the principle of securing highly effective water reducing agent with the mixture of industrial naphthalene and crude methyl naphthalene.The optimum conditions of the process was experimentally investigatid to give optimal mass ratio of industrial naphthalene and crude methyl naphthalene and make the characteristic criteria of the high quality water reducing agent produced reached the national standard.This process is of advantages of low cost and low energy consumption resulting in high ranke water reducing agent.