A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recovery method and application of salty mud
The invention relates to a recovery method and application of salty mud, and belongs to the technical field of chemical processes. According to the method, sodium sulfate in the mineral salt brine and calcium chloride in the clear waste liquid discharged by a sodium carbonate plant are subjected to a chemical reaction, then the salty mud generated by refining the mineral salt brine is mixed with the reaction liquid, the mixture of sodium chloride, gypsum and the salty mud can be generated through the procedures of sedimentation and filtration, and the obtained sodium chloride can be used for alkali production; the mixture of the gypsum and the salty mud can be used as a building material; the gypsum and salty mud mixture obtained by the method disclosed by the invention has stable indexes, and can be directly sold as a semi-finished product; according to the method, multiple sets of processes are adopted for treatment, the problem of blockage of equipment pipelines in the recovery process is solved, corrosion of all raw materials and intermediate products to equipment is reduced, the operation cost of production is greatly reduced, the production period can be conveniently prolonged, the requirement for large demand of the current sodium carbonate market can be met, and high economic benefits are achieved.
本发明涉及一种盐泥的回收方法与应用，属于化工工艺技术领域。本发明利用矿盐卤水中的硫酸钠与纯碱厂排放的清废液中的氯化钙进行化学反应，再将矿盐卤水精制生成的盐泥与上述反应液混合，经沉降和过滤工序，可生成氯化钠和石膏、盐泥的混合物，得到的氯化钠可进行制碱，石膏、盐泥的混合物则可作为建筑材料使用；采用本发明所述方法得到的石膏、盐泥的混合物的各项指标稳定，可直接作为半成品销售；本发明所述方法采用多组工艺处理，减少了回收过程中设备管道的堵塞问题以及各原料和中间产物对设备的腐蚀，大大降低了生产的运行成本，便于延长生产周期，可满足目前纯碱市场需求量大的要求，具有高的经济效益。
Recovery method and application of salty mud
The invention relates to a recovery method and application of salty mud, and belongs to the technical field of chemical processes. According to the method, sodium sulfate in the mineral salt brine and calcium chloride in the clear waste liquid discharged by a sodium carbonate plant are subjected to a chemical reaction, then the salty mud generated by refining the mineral salt brine is mixed with the reaction liquid, the mixture of sodium chloride, gypsum and the salty mud can be generated through the procedures of sedimentation and filtration, and the obtained sodium chloride can be used for alkali production; the mixture of the gypsum and the salty mud can be used as a building material; the gypsum and salty mud mixture obtained by the method disclosed by the invention has stable indexes, and can be directly sold as a semi-finished product; according to the method, multiple sets of processes are adopted for treatment, the problem of blockage of equipment pipelines in the recovery process is solved, corrosion of all raw materials and intermediate products to equipment is reduced, the operation cost of production is greatly reduced, the production period can be conveniently prolonged, the requirement for large demand of the current sodium carbonate market can be met, and high economic benefits are achieved.
本发明涉及一种盐泥的回收方法与应用，属于化工工艺技术领域。本发明利用矿盐卤水中的硫酸钠与纯碱厂排放的清废液中的氯化钙进行化学反应，再将矿盐卤水精制生成的盐泥与上述反应液混合，经沉降和过滤工序，可生成氯化钠和石膏、盐泥的混合物，得到的氯化钠可进行制碱，石膏、盐泥的混合物则可作为建筑材料使用；采用本发明所述方法得到的石膏、盐泥的混合物的各项指标稳定，可直接作为半成品销售；本发明所述方法采用多组工艺处理，减少了回收过程中设备管道的堵塞问题以及各原料和中间产物对设备的腐蚀，大大降低了生产的运行成本，便于延长生产周期，可满足目前纯碱市场需求量大的要求，具有高的经济效益。
Recovery method and application of salty mud
一种盐泥的回收方法与应用
SHEN BO (author) / HUANG YUANBAO (author) / LIANG ERXI (author) / TAN WENJIE (author) / LIU CHANGYU (author)
2023-09-12
Patent
Electronic Resource
Chinese
IPC:
C01D
Verbindungen der Alkalimetalle, d.h. des Lithiums, Natriums, Kaliums, Rubidiums, Cäsiums oder Franciums
,
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
Catalogue agriculture | 1973
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| European Patent Office | 2023
Chloride profiles in salty concrete
| Tema Archive | 1985