Adhesive prepared from paper making black liquor for forming active carbon

Abstract

This invention discloses an adhesive prepared from papermaking black liquor for activated carbon shaping. The adhesive comprises: black liquor concentrate 55-70 wt.%, adhesive material 10-20 wt.%, starch 5-10 wt.%, plant waste residue 10-20 wt.%, and surfactant 2-5 wt.%. The adhesive can substitute for the present adhesive made from coal tar, and can produce activated carbon product with adjustable frame porosity, abundant surface functional groups, high adsorption ability and high quality. The activated carbon product is suitable for advanced water treatment and deep-processing decolorization in food and fine chemical industries, and has such advantages as rapid adsorption, rapid decolorization and wide applications.

Description

technical field

[0001] The invention relates to an adhesive, in particular to an adhesive for forming activated carbon prepared from papermaking black liquor. Background technique

[0002] At present, the commonly used process methods for activated carbon molding and manufacturing are: pulverized coal - adding binder (coal tar) kneading (20 minutes) - layering molding - cold strips for 24 hours - carbonization (the temperature at the end of the furnace is about 450 ° C, the speed is 45 rpm / minute or so)—activation (45 minutes)—post-treatment; wherein need to use binder, and existing about 90% shaped activated carbon, such as columnar activated carbon, binder all is the coal tar that adopts, and its manufacturing process The air pollution is serious, the tail gas must be incinerated and the cost is high; while the straw pulp papermaking black liquor discharge is the largest source of water pollution in my country, and the pollution control of black liquor has been a big probl...