Sulfurfixing aids in coal water slurry help to increase the fixing-rate. The rate could be increased to 6%~9% when the mixture contains 1% of alkali metal ions.

• 制备脱硫型水煤浆时添加少量固硫助剂可以提高水煤浆的固硫率；碱金属盐用量为固硫剂1%25时；固硫率提高6%25~9%25.