A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Combined treatment method for chlorination process titanium dioxide byproduct hydrochloric acid and chlorination dust collection slag
The invention discloses a chlorination process titanium dioxide by-product hydrochloric acid and chlorination dust collection slag combined treatment method which comprises the following steps: S1, adsorbing by-product hydrochloric acid by using resin to remove colloid in the by-product hydrochloric acid; s2, preparing the purified hydrochloric acid into a dilute acid solution with the hydrochloric acid mass concentration of 2-4%; s3, mixing the chlorinated dust collection slag with a dilute acid solution for slurrying; s4, carrying out solid-liquid separation to collect dust residue slurry; and using the primary filter residue as a titanium raw material for high titanium slag smelting. The method has the advantages that: 1) the chlorination process titanium dioxide byproduct hydrochloric acid and the chlorination dust collection slag are jointly treated for the first time, and the titanium chloride slag is pulpified by using the diluted acid prepared from the purified acid generated after the byproduct hydrochloric acid is adsorbed by the resin, so that the technical problem that the chlorination dust collection slag is difficult to filter due to a large amount of colloids generated by hydrolysis during pulpifying is solved; and 2) the treatment cost of waste acid and waste residue in the chlorination process titanium dioxide production process is obviously reduced, the waste quantity discharged by the process is reduced, and the industrial popularization is easy.
本发明公开了一种氯化法钛白粉副产盐酸及氯化收尘渣联合处理方法，包括如下步骤：S1、利用树脂对副产盐酸进行吸附，除去其中胶体；S2、将净化盐酸配制成盐酸质量浓度为2～4％的稀酸溶液；S3、将氯化收尘渣与稀酸溶液混合化浆；S4、固液分离收尘渣浆料；将一次滤渣作为高钛渣冶炼的钛原料进行使用。其优点是：1)首次提出将氯化法钛白粉副产盐酸及氯化收尘渣联合处理，利用副产盐酸经树脂吸附后产生的净化酸配制成稀酸后对氯化钛渣进行浆化，解决了氯化收尘渣浆化时水解产生大量胶体导致其难以过滤的技术问题。2)显著降低了氯化法钛白粉生产过程中废酸、废渣的处理成本，减少了工艺排放的废物量，且易于工业化推广。
Combined treatment method for chlorination process titanium dioxide byproduct hydrochloric acid and chlorination dust collection slag
The invention discloses a chlorination process titanium dioxide by-product hydrochloric acid and chlorination dust collection slag combined treatment method which comprises the following steps: S1, adsorbing by-product hydrochloric acid by using resin to remove colloid in the by-product hydrochloric acid; s2, preparing the purified hydrochloric acid into a dilute acid solution with the hydrochloric acid mass concentration of 2-4%; s3, mixing the chlorinated dust collection slag with a dilute acid solution for slurrying; s4, carrying out solid-liquid separation to collect dust residue slurry; and using the primary filter residue as a titanium raw material for high titanium slag smelting. The method has the advantages that: 1) the chlorination process titanium dioxide byproduct hydrochloric acid and the chlorination dust collection slag are jointly treated for the first time, and the titanium chloride slag is pulpified by using the diluted acid prepared from the purified acid generated after the byproduct hydrochloric acid is adsorbed by the resin, so that the technical problem that the chlorination dust collection slag is difficult to filter due to a large amount of colloids generated by hydrolysis during pulpifying is solved; and 2) the treatment cost of waste acid and waste residue in the chlorination process titanium dioxide production process is obviously reduced, the waste quantity discharged by the process is reduced, and the industrial popularization is easy.
本发明公开了一种氯化法钛白粉副产盐酸及氯化收尘渣联合处理方法，包括如下步骤：S1、利用树脂对副产盐酸进行吸附，除去其中胶体；S2、将净化盐酸配制成盐酸质量浓度为2～4％的稀酸溶液；S3、将氯化收尘渣与稀酸溶液混合化浆；S4、固液分离收尘渣浆料；将一次滤渣作为高钛渣冶炼的钛原料进行使用。其优点是：1)首次提出将氯化法钛白粉副产盐酸及氯化收尘渣联合处理，利用副产盐酸经树脂吸附后产生的净化酸配制成稀酸后对氯化钛渣进行浆化，解决了氯化收尘渣浆化时水解产生大量胶体导致其难以过滤的技术问题。2)显著降低了氯化法钛白粉生产过程中废酸、废渣的处理成本，减少了工艺排放的废物量，且易于工业化推广。
Combined treatment method for chlorination process titanium dioxide byproduct hydrochloric acid and chlorination dust collection slag
氯化法钛白粉副产盐酸及氯化收尘渣联合处理方法
LIAO ZHOURONG (author) / LI LIUYU (author) / TANG YONG (author) / ZHOU GAOMING (author) / SEO HYEWON (author) / LIANG YICHAO (author) / WANG WANPING (author) / LUO XIAOFANG (author)
2022-08-02
Patent
Electronic Resource
Chinese
Online dechlorination technology of chlorination process tailing slag extracted titanium
| European Patent Office | 2016
Consultants Collection: Well chlorination
Online Contents | 1998
| European Patent Office | 2022
Super‐chlorination and De‐chlorination
| Wiley | 1947
Super‐Chlorination and De‐Chlorination
| Wiley | 1941