公开(公告)号：WO1979000952A1

公开(公告)日：1979-11-15

申请号：PCT/US1979000251

申请日：1979-04-19

Applicant: OCCIDENTAL RES CORP

Inventor： OCCIDENTAL RES CORP ,  MOUDGIL B ,  MESSENGER D

IPC: B07C05/34

CPC classification number: B03B1/04 ,  B03B13/04 ,  B07C5/3427

Abstract: A process for separating coal particles from ROM coal containing coal particles and refuse particles, by treating particulate ROM coal with a detectable marking agent in a manner to attach the marking agent preferentially to only one class of particles in the R0M coal, and by thereafter separating particles carrying the marking agent from the treated particulate ROM coal. In a preferred embodiment, a method is disclosed for the separation of coal from run of mine (ROM) coal containing particles of coal and refuse, which comprises conditioning the ROM coal with a coating agent capable of selectively coating the particulate coal to the substantial exclusion of coating the refuse, which coating agent is at least one alcohol containing from about 6 to about 22 carbon atoms. Combined with said coating agent is a fluorescent dye in a quantity to make the coated particles of coal fluoresce upon excitation to a degree sufficient to distinguish the coated coal particles from the substantially non-coated refuse. Exciting (as with ultraviolet light) the fluorescent dye coupled to the coal particles induces fluorescence and enables separating the fluorescing, coated coal particles from substantially non-fluorescing, non-coating refuse particles.

Abstract translation: 一种通过用可检测的标记剂处理颗粒状ROM煤以将标记剂优先仅附着在R0M煤中的一类颗粒的方式，然后分离出来，从含有煤颗粒和垃圾颗粒的ROM煤中分离煤颗粒的方法 从经处理的颗粒ROM煤中携带标记剂的颗粒。 在一个优选的实施方案中，公开了一种用于从煤矿和含煤煤矿和垃圾颗粒中分离煤的方法，其包括用能够选择性地将颗粒状煤覆盖到实质排除物上的涂覆剂来调节ROM煤 涂覆垃圾，该涂料是含有约6至约22个碳原子的至少一种醇。 与所述涂覆剂组合是一种荧光染料，其量使得涂覆的煤的颗粒在激发时发出足以将涂覆的煤颗粒与基本上未涂覆的垃圾区分开的程度。 激发（如同紫外线），耦合到煤颗粒的荧光染料诱导荧光，并且能够使荧光涂覆的煤颗粒与基本上不发荧光的非涂层垃圾颗粒分离。