综合利用联碱厂废液副产白炭黑新技术联碱法生产纯碱是工业上生产纯碱的主要方法之一。联碱法亦称联合法，其生产过程虽然是闭合循环过程，原则上没有三废排放，但工艺过程中的某些残液残渣仍需定期排放，以保证纯碱和氯化铵产品的质量。例如，盐析结晶器运行过程，由于原盐质 The comprehensive utilization of the by-product white carbon black technology of the Liquor-alkali plant combined with the alkali production of soda ash is one of the main methods for the industrial production of soda ash. The joint alkali method is also known as the joint method. Although the production process is a closed-cycle process, in principle, there is no discharge of the three wastes, but some residue residues in the process still need to be regularly discharged to ensure the quality of soda ash and ammonium chloride products. For example, the salt crystallizer runs, due to the original salt