以一种木质素磺酸钙为原料，采用苯酚-硫酸法对其进行酚化改性。
In this paper, a kind of calcium lignosulfonate was phenolated by the method of phenol-sulfuric acid.
针对尖山矿磁铁矿粉滤饼水分偏高的情况，以木质素磺酸钙为助滤剂进行了初步试验。
Taking account of the situation that moisture content of magnetite filter cake was on the low side, primary tests were carried out by using lignin calcium sulfonate as filter aid.
第一个转变发生在较低温度范围内，可能与木质素磺酸钙的脱水和甲醛等小分子的反应相关；
The first change relating with removing of water and aldehyde took place at a lower temperature.
本发明公开了一种采油用堵水剂，由环氧树脂、聚乙烯聚氨、木质素磺酸钙、氯化钙、水混合组成。
The invention discloses a water shutoff agent for oil extraction, which is prepared by mixing epoxy resins, polyethylene ammonia, calcium lignosulphonate, calcium chloride and water.
介绍了提高木镁抗吸潮性能的生产方法，使其达到木质素磺酸钙的抗潮性能，而保持其原有的表面活性不变。
A method of producing the same moisture proof ability as the calcium lignosulfonate and remaining its surfactivity is introduced.
介绍了提高木镁抗吸潮性能的生产方法，使其达到木质素磺酸钙的抗潮性能，而保持其原有的表面活性不变。
A method of producing the same moisture proof ability as the calcium lignosulfonate and remaining its surfactivity is introduced.
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