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1. (US5161694) Method for separating fine particles by selective hydrophobic coagulation

专利局 : 美国
申请号: 07513884 申请日: 24.04.1990
公布号: 5161694 公布日: 10.11.1992
授权号: 5161694 授权日: 10.11.1992
公布类型: A
国际专利分类:
B03B 1/00
B03B 1/04
B03C 1/005
B03C 1/01
B03D 3/00
B03D 3/02
B 作业;运输
03
用液体或用风力摇床或风力跳汰机分离固体物料;从固体物料或流体中分离固体物料的磁或静电分离;高压电场分离
B
用液体或用风力摇床或风力跳汰机分离固体物料
1
改变待处理物料的物理性能以便于分离而进行的处理
B 作业;运输
03
用液体或用风力摇床或风力跳汰机分离固体物料;从固体物料或流体中分离固体物料的磁或静电分离;高压电场分离
B
用液体或用风力摇床或风力跳汰机分离固体物料
1
改变待处理物料的物理性能以便于分离而进行的处理
04
用添加剂
[IPC code unknown for B03C 1/05]
B 作业;运输
03
用液体或用风力摇床或风力跳汰机分离固体物料;从固体物料或流体中分离固体物料的磁或静电分离;高压电场分离
C
从固体物料或流体中分离固体物料的磁或静电分离;高压电场分离
1
磁力分离
005
专门适用于磁分离的预处理
01
通过加磁辅助
B 作业;运输
03
用液体或用风力摇床或风力跳汰机分离固体物料;从固体物料或流体中分离固体物料的磁或静电分离;高压电场分离
D
浮选;选择性沉积法
3
选择性沉积法
B 作业;运输
03
用液体或用风力摇床或风力跳汰机分离固体物料;从固体物料或流体中分离固体物料的磁或静电分离;高压电场分离
D
浮选;选择性沉积法
3
选择性沉积法
02
凝聚
申请人: Virginia Tech Intellectual Properties, Inc.
发明人: Yoon Roe-Hoan
Luttrell Gerald H.
代理人: Mason, Fenwick & Lawrence
优先权数据:
标题: (EN) Method for separating fine particles by selective hydrophobic coagulation
摘要: front page image
(EN)

A process of selectively agglomerating coal in an aqueous environment while leaving the mineral matter dispersed has been developed. This process is autogenous for hydrophobic particles in that neither an agglomerating agent nor an electrolytic coagulant is needed. It is based on the finding that hydrophobic particles are pushed against each other by the surrounding water structure. This process, which is referred to as selective hydrophobic coagulation, is driven by the so-called hydrophobic interaction energy, which is not included in the classical DLVO theory describing the stability of lyophobic suspensions. The relatively small coagula formed by the selective hydrophobic coagulation process can be readily separated from the dispersed mineral matter by several different techniques such as screening, elutriation, sedimentation and froth flotation.