粉煤灰预脱硅碱石灰烧结法提取氧化铝

杜艳霞; 王宏宾

doi:10.3969/j.issn.1000-6532.2024.03.003

粉煤灰预脱硅碱石灰烧结法提取氧化铝

杜艳霞,
王宏宾^,

神华准能资源综合开发有限公司，内蒙古　鄂尔多斯　010300

详细信息

作者简介: 杜艳霞（1984-），女，硕士，高级工程师，主要研究方向为粉煤灰资源化综合利用技术

通讯作者: 王宏宾（1985-），男，硕士，高级工程师，主要研究方向为粉煤灰资源化综合利用技术。

中图分类号: TD989;TQ536.4

收稿日期: 2022-09-03

刊出日期: 2024-06-25

Pre-desilication Soda Lime Sintering Method of Alumina Extraction from Fly Ash

DU Yanxia,
WANG Hongbin^,

Shenhua Zhunneng Resources Comprehensive Development Co., Ltd., Erdos 010300, Inner Mongolia, China

More Information

Corresponding author: WANG Hongbin, 731634543@qq.com

Received Date: 03 September 2022

Publish Date: 25 June 2024

摘要

摘要:
这是一篇冶金工程的论文。对于铝土矿资源紧缺的中国来说，高铝粉煤灰是最好的铝土矿替代资源，因此粉煤灰中氧化铝的提取工艺技术将会作为战略储备技术，其研发力度与深度会不断推进。文章就目前唯一实现规模化、工业化的粉煤灰预脱硅碱石灰烧结法提取氧化铝工艺技术进行了阐述，为切实推进高铝粉煤灰开发利用工业化进程提供借鉴，进而保证我国铝土矿资源的战略安全。
- 冶金工程 /
- 预脱硅 /
- 粉煤灰 /
- 料浆配制 /
- 烧结
Abstract:
This is an article in the field of metallurgical engineering. China is short of bauxite resources, which makes the high alumina fly ash a kind of potential bauxite resources. The extraction of alumina oxide from fly ash will be used as a reserve technology, which will make the in-depth development and research constantly pushed forward. The pre-desilication soda lime sintering method of alumina extraction from fly ash has been introduced as the only large-scale and industrialized manufacture technology. It can provide reference information for technology development and the industrialization, and make the national bauxite strategic reserve system safe.
- Metallurgical engineering /
- Pre-desilication /
- Fly ash /
- Proportioning of raw slurry /
- Sintering

HTML全文

图 1 托克托电厂粉煤灰XRD

Figure 1.

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图 2 托克托电厂粉煤灰SEM

Figure 2.

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图 3 预脱硅碱石灰烧结法工艺流程

Figure 3.

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图 4 预脱硅工序工艺流程

Figure 4.

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图 5 固液分离工序工艺流程

Figure 5.

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图 6 脱硅粉煤灰SEM

Figure 6.

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图 7 脱硅粉煤灰XRD

Figure 7.

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图 8 生料浆配制工序

Figure 8.

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图 9 熟料烧结工序工艺流程

Figure 9.

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图 10 溶出工序工艺流程

Figure 10.

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图 11 熟料溶出后后续工序

Figure 11.

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表 1 托克托电厂粉煤灰主要化学成分/%

Table 1. Main chemical composition of the fly ash of Tuoketuo Power Plant

Al₂O₃ SiO₂ Fe₂O₃ CaO MgO TiO₂ Na₂O K₂O P₂O₅ SO₃ V₂O₅ LOS

52.85 38.35 2.33 3.35 0.35 1.60 0.09 0.38 0.19 0.12 0.05 0.30

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