The technology of shallow desalting in the feed-water treatment is briefly introduced. This technology can upgrade the boiler soft-water and form shallow desalting water.

介绍了浅除盐技术的原理，运用浅除盐技术可以使锅炉软化水进一步提质为浅除盐水。

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Seeing that ion exchange process for treatment of boiler feed-water is of high cost and difficult to master, composite antiscale KH- 209 is developed and prepared.

针对采用离子交换法处理锅炉用水时费用高且技术难以掌握等问题，研制开发了KH-209复合阻垢剂。

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