Inorganic Chemicals Industry >
Present situation and prospect of comprehensive utilization of waste residue containing calcium and magnesium
Received date: 2021-04-07
Online published: 2022-03-14
Calcium magnesium type waste residue can be divided into Ca（OH）2 type and CaCO3 type.According to the con-tent of magnesium,it can be divided into high magnesium type and low magnesium type.Only high magnesium type waste residue needs to separate and recover magnesium.The common calcium magnesium slags are calcium carbide slag,alkali slag,saponification slag,phosphorus tailings and so on.The present situation of comprehensive utilization of Ca（OH）2 type waste residue was summarized as follows：Ca（OH）2 type waste residue should be separated by leaching,filtration and carboni-zation.Calcium could be separated as PCC by calcination,digestion,leaching,filtration and carbonization.If it was a high mag-nesium type waste residue,it was necessary to increase the chemical and physical steps such as CO2 carbonization,filtration separation,ammonia precipitation separation or pyrolysis of magnesium bicarbonate to realize the separation and recovery of magnesium.Looking forward to the future,the comprehensive utilization of calcium magnesium slag would be a kind of circular economy project with environmental,social and economic benefits,which is worthy of concern,attention and promotion.
Xin YAN , Yilan WEI . Present situation and prospect of comprehensive utilization of waste residue containing calcium and magnesium[J]. Inorganic Chemicals Industry, 2022 , 54(1) : 7 -11 . DOI: 10.19964/j.issn.1006-4990.2021-0227
| [1] | 刘代俊. 中国无机固体废弃物处理技术进展[J]. 无机盐工业, 2020, 52(3):1-10. |
| [2] | WANG Yali, HAN Xiaoning, CHEN Meina, et al. Desulfurization and denitrification performance of modified rice husk ash-carbide slag absorbent[J]. Materials, 2020, 14(1):68. |
| [3] | ZHANG Chunxiao, LI Yingjie, BIAN Zhiguo, et al. [CLCG] Simul-taneous CO2 capture and thermochemical heat storage by modified carbide slag in coupled calcium looping and CaO/Ca(OH)2 cycles[J]. Chinese Journal of Chemical Engineering, 2020.Doi: 10.1016/j.cjche.2020.09.026. |
| [4] | PRINYA Chindaprasirt, APICHIT Kampala, PEERAPONG Jitsan-giam, et al. Performance and evaluation of calcium carbide residue stabilized lateritic soil for construction materials[J]. Case Studies in Construction Materials, 2020, 13.Doi: 10.1016/j.cscm.2020.e00389. |
| [5] | 杨小彦, 徐婕, 陈刚, 等. 电石渣在化工领域的利用现状及前景[J]. 陕西煤炭, 2020, 39(S1):159-162. |
| [6] | 颜鑫, 卢云峰. 轻质系列碳酸钙关键技术[M]. 北京: 化学工业出版社, 2016:231-236. |
| [7] | 李晨, 张雷, 张宏勋, 等. 电石渣合成高纯碳酸钙的研究[J]. 无机盐工业, 2011, 43(4):52-54. |
| [8] | 颜鑫, 刘海路, 马媛媛, 等. 以电石渣为原料生产食品级轻质碳酸钙的绿色新工艺[J]. 现代化工, 2019, 39(2):199-201. |
| [9] | 颜鑫. 一种电石渣生产高纯度轻质碳酸钙的中试技术[J]. 无机盐工业, 2019, 51(8):93. |
| [10] | YANG Jie, LIU Shengyu, MA Liping, et al. Mechanism analysis of carbide slag capture of CO2 via a gas-liquid-solid three-phase flui-dization system[J]. Journal of Cleaner Production, 2021, 279.Doi: 10.1016/j.jclepro.2020.123712. |
| [11] | 颜鑫, 吴健谊, 卢云峰, 等. 氨碱厂碱渣充分综合利用新技术的研究[J]. 无机盐工业, 2021, 53(1):68-71. |
| [12] | WANG Shaojie, BU Huaitian, CHEN Huojun, et al. Floatable ma-gnetic aerogel based on alkaline residue used for the convenient removal of heavy metals from wastewater[J]. Chemical Engineering Journal, 2020, 399.Doi: 10.1016/j.cej.2020.125760. |
| [13] | 颜鑫. 一种氨碱厂碱渣综合利用新技术[J]. 无机盐工业, 2019, 51(2):88. |
| [14] | 颜鑫. 一种环氧氯丙烷皂化废浆综合利用新技术[J]. 无机盐工业, 2020, 52(12):118. |
| [15] | 王志琰, 许金玉, 何君洁, 等. 环氧氯丙烷生产技术及发展趋势[J]. 山东化工, 2020, 49(7):70-71. |
| [16] | 颜鑫. 一种磷尾矿富集并联产高纯度轻质碳酸钙和氢氧化镁的新技术[J]. 无机盐工业, 2019, 51(3):82. |
| [17] | 颜鑫. 一种高镁磷尾矿富集并联产轻质碳酸钙和氢氧化镁的方法:中国,109354000A[P]. 2019-02-19. |
| [18] | 张家鑫, 潘益, 夏琰, 等. 磷尾矿制备氢氧化镁阻燃剂的试验研究[J]. 非金属矿, 2020, 43(3):64-68. |
| [19] | 周佳琦, 陈葵, 武斌, 等. 磷尾矿中钙镁的活化浸出实验研究[J]. 化工矿物与加工, 2020, 49(10):40-45. |
| [20] | 颜鑫, 卢云峰, 马媛媛, 等. 氯化钙-氨水体系生产纳米碳酸钙的复合碳化机理研究[J]. 无机盐工业, 2019, 51(7):77-80. |
/
| 〈 |
|
〉 |