公开(公告)号：US20160257617A1

公开(公告)日：2016-09-08

申请号：US14419255

申请日：2014-03-13

Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

Inventor： De an Pan ,  Shen gen ZHANG ,  Ling jie LI ,  Bin GUO ,  Bo LIU

IPC: C04B28/08

CPC classification number: C04B28/085 ,  C01F11/46 ,  C04B5/00 ,  C04B12/005 ,  C04B14/22 ,  C04B18/0445 ,  C04B18/0472 ,  C04B28/008 ,  C22B7/04 ,  C22C11/00 ,  Y02P40/165 ,  Y02W30/91 ,  Y02W30/94 ,  Y02W30/95 ,  C04B12/04 ,  C04B18/14 ,  C04B22/062 ,  C04B18/167

Abstract: An amount-reduction, harmless, disposal method for heavy metal waste gypsum (HMWG), which belongs to the technical fields of recycling economy and environmental protection. The HMWG used as raw material is subjected to processes of smelting fluxpreparation, lead smelting, fuming, and geopolymeric gelling, to realize amount-reduction, harmless and resources recycling utilization of heavy metal waste gypsum. The smoke containing sulfur dioxide produced in the smelting process is sent to the acid making system, and the produced dust with heavy metal is sent to the dedicated system for heavy mental disposing. The smoke dust produced in the fuming process is returned to the lead smelting system. The secondary HMWG produced in the acid making system would be returned to the preparation process of smelting flux. And the final products would be sulfuric acid and geopolymer material.

Abstract translation: 重金属废石膏（HMWG）的减量，无害化处置方法属于循环经济和环保技术领域。 用作原料的HMWG进行冶炼助熔，铅冶炼，发烟和地质聚合胶凝的工艺，实现重金属废石膏的减量，无害化和资源循环利用。 将冶炼过程中产生的含二氧化硫的烟气送至制酸系统，将重金属产生的粉尘送至专用系统进行重心处理。 在发烟过程中产生的烟尘返回到铅冶炼系统。 在制酸系统中生产的次级HMWG将返回到熔炼焊剂的制备过程。 最终产品将是硫酸和地质聚合物材料。

公开(公告)号：US09499440B2

公开(公告)日：2016-11-22

申请号：US14419255

申请日：2014-03-13

Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

Inventor： De an Pan ,  Shen gen Zhang ,  Ling jie Li ,  Bin Guo ,  Bo Liu

IPC: C04B28/08 ,  C01F11/46 ,  C22B7/04 ,  C22C11/00

CPC classification number: C04B28/085 ,  C01F11/46 ,  C04B5/00 ,  C04B12/005 ,  C04B14/22 ,  C04B18/0445 ,  C04B18/0472 ,  C04B28/008 ,  C22B7/04 ,  C22C11/00 ,  Y02P40/165 ,  Y02W30/91 ,  Y02W30/94 ,  Y02W30/95 ,  C04B12/04 ,  C04B18/14 ,  C04B22/062 ,  C04B18/167

Abstract: An amount-reduction, harmless, disposal method for heavy metal waste gypsum (HMWG), which belongs to the technical fields of recycling economy and environmental protection. The HMWG used as raw material is subjected to processes of smelting fluxpreparation, lead smelting, fuming, and geopolymeric gelling, to realize amount-reduction, harmless and resources recycling utilization of heavy metal waste gypsum. The smoke containing sulfur dioxide produced in the smelting process is sent to the acid making system, and the produced dust with heavy metal is sent to the dedicated system for heavy mental disposing. The smoke dust produced in the fuming process is returned to the lead smelting system. The secondary HMWG produced in the acid making system would be returned to the preparation process of smelting flux. And the final products would be sulfuric acid and geopolymer material.

Abstract translation: 重金属废石膏（HMWG）的减量，无害化处置方法属于循环经济和环保技术领域。 用作原料的HMWG进行冶炼助熔，铅冶炼，发烟和地质聚合胶凝的工艺，实现重金属废石膏的减量，无害化和资源循环利用。 将冶炼过程中产生的含二氧化硫的烟气送至制酸系统，将重金属产生的粉尘送至专用系统进行重心处理。 在发烟过程中产生的烟尘返回到铅冶炼系统。 在制酸系统中生产的次级HMWG将返回到熔炼焊剂的制备过程。 最终产品将是硫酸和地质聚合物材料。