MOLTEN-SALT CHLORINATED-SLAG RESOURCE PROCESSING METHOD

WIPO Patent Application WO/2017/174012

A1

Provided is a salt chlorinated-slag resource processing method; in said method, the strong oxidizing or alkaline waste brine or chlor-alkali chemical tail-gas absorption waste liquid produced by purifying molten-salt chlorinated tail gas is used to process molten-salt chlorinated-slag leachate, thus recovering NaCl, crystallized magnesium chloride, and ferromanganese slag and performing low-cost resource processing of molten-salt chlorinated slag. The method uses waste to process waste, not only solving the problem of pollution by molten-salt chlorinated slag, but also recycling NaCl, MgCL2, and ferromanganese raw materials from molten-salt slag; it has good economic benefit and is of significant interest in eliminating the bottleneck in the development of techniques for preparing TiCl4 by titanium slag molten-salt chlorination; it is widely applicable in China and abroad among companies producing molten-salt chlorination and magnesium electrolytic titanium sponges and companies producing molten-salt chlorination titanium sponges, and has broad prospects for widespread use.

LIU CHANGLIN (CN)
HOU SHENGDONG (CN)
YANG LUBO (CN)
ZHANG JINGLEI (CN)
XIA JIANHUI (CN)
ZHENG SHAOHUA (CN)
CHENG YONG (CN)
ZHA XIAOLE (CN)
HUANG ZILIANG (CN)

PCT/CN2017/079629

October 12, 2017

April 06, 2017

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PANGANG GROUP PANZHIHUA IRON & STEEL RES INST CO LTD (CN)

B09B3/00; C22B7/00; C22B60/00

CN103243220A	2013-08-14
CN103234209A	2013-08-07
CN104772317A	2015-07-15
EP2274239B1	2014-08-27
CN105883911A	2016-08-24

CHENGDU HONGQIAO PATENT LAW OFFICE (CN)

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