方法采用悬液定量杀菌试验方法对过滤冲洗试验法与化学中和法进行了平行比较试验。
Method Suspension quantitative germicidal test was used to carry out parallel comparison between filtration-rinse test method and chemical neutralization method.
本论文以河南锆硅渣为原料，研究了分别采用化学沉淀法和直接中和法制备白炭黑的技术和工艺。
In this paper, preparation processes of amorphous silica using Henan Zr-containing silica residue as raw materials with chemical precipitation and direct neutralization methods were researched.
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