减压蒸发

采用常规蒸发、减压蒸发和载气蒸发处理不同pH值的老龄期渗滤液。

Normal evaporation , vacuum evaporation and gas-carrying evaporation were adopted for treatment of old landfill leachate with different pH values .

与常规蒸发相比，减压蒸发和载气蒸发的前期冷凝液COD较高，且浓度转折点偏后。

For vacuum evaporation and gas-carrying evaporation , the earlier-stage condensates COD are higher and the turning points are later than normal evaporation .

针对高浓度有机络合镀镍废液提出了减压蒸发浓缩&结晶处理工艺流程。

The waste liquid is processed by decompression-evaporation and concentration crystallizing .

外循环减压蒸发工艺回收废酸技术与应用

Reclaiming waste pickling liquor with the process of decompression evaporation of outside circulation

应用人工神经网络模拟腈纶五效减压蒸发系统

Modeling of five-effect underpressure evaporation system for PAN fiber based on artificial neural network

提取液经减压蒸发回收溶剂，浓缩液在80℃真空干燥，得到棕褐色的木质素。

The extract was vacuum evaporated to recover the solvent . The lignin was obtained after the concentrated solution was vacuum dried at 80 ℃ .

关于铬酐制法的评论，各国正在生产的铬酐制法有9种，以内热式转筒法、减压蒸发结晶法和电解法更先进。

There are9 methods , in which the rotary cylinder with internal heating method , decompressing evaporation crystallization method and electrolyze method are more advanced .

模拟采用在生产过程中采集的数据，生成模拟五效减压蒸发系统中进料量、各效阀位等参数、各效蒸发器壳程压力关系的人工神经网络。

An artificial neural network was created for simulating the relationship among in-feeding , valves and shell route pressure of evaporation tanks based on the data from actual production line .

介绍了浙江省宁波市不锈钢行业酸洗废液的产生特征，简述了外循环减压蒸发工艺回收废酸液的特点、主要参数和关键设备。

The productive characters of waste pickling liquor in stainless steel industry of Ningbo city were introduced , the characteristics of decompression evaporation of outside circulation process , and its main process parameters and key facilities .

介绍了二步湿法腈纶生产工艺中溶剂硫氰酸钠净化浓缩&五效减压蒸发装置的工艺探讨，针对装置实际运行状况进行技术分析，相应进行技术改进。

Introducing process probe of solvent sodium thiocyanide purification and concentration-five effective evaporation unit by two steps wet-way acrylic fiber production process , it arouses that technical analysis in regarding to practical plant operating conditions and technical improvement shall be taken correspondingly .

将滤过液减压蒸发除去有机试剂，并通过超滤的方式除去离子液体，最后获得离子液体木素。

By decompressing evaporation it can remove the organic solvent from the filtered-solution , then remove the ionic liquids using a stirred ultrafiltration system . We can get some solids content . Finally , a small sample of it was taken to determine its solids content .

采用减压旋转蒸发去除副产物乙醇可进一步提高阿魏酸油酸甘油酯的产率。

Applying vacuum-rotary evaporation procedure to remove the co-product ethanol further enhanced the combined yield of FDO and FMO .

减压蒸馏蒸发、反渗透法和渗析法是目前生产无醇啤酒的主要方法。

Vacuum distillation & evaporation , reverse osmosis and dialytic process are the main separation techniques in alcohol-free beer production .