Technology for preparing carbon molecular sieve binder from PF waste resin

Abstract

The invention relates to the technical field of carbon molecular sieves, and discloses a technology for preparing a carbon molecular sieve binder from PF waste resin. The carbon molecular sieve binderis prepared from, by weight, 20 to 30 parts of walnut shells, 30 to 40 parts of an inorganic foaming material, 25 to 30 parts of a physical foaming material, 35 to 40 parts of a surfactant, 15 to 25parts of modified thermosetting phenolic resin and 30 to 40 parts of deionized water. The modified thermosetting phenolic resin is prepared by the following steps: adding uncured phenolic resin wasteinto a stirring tank, slowly adding ethanol water with the volume fraction of 30-35% into the stirring tank, stirring in the adding process, and adjusting the viscosity of the phenolic resin waste tobe 1500-2500 cps at 25 DEG C to obtain the modified thermosetting phenolic resin. The inorganic foaming material is sodium bicarbonate powder. The physical foaming material is petroleum ether. According to the technology for preparing the carbon molecular sieve binder from the PF waste resin, phenolic resin waste is effectively recycled, resource waste is avoided, and the production quality of thecarbon molecular sieve is guaranteed.

Description

technical field [0001] The invention relates to the technical field of carbon molecular sieves, in particular to a process for preparing carbon molecular sieve binders from waste PF resins. Background technique [0002] After a long period of storage, the thermosetting phenolic resin waste gradually increases in viscosity and water solubility gradually attenuates. At present, the main treatment method is to treat it as solid hazardous waste. On the one hand, this treatment method wastes resources. The manufacturer has brought economic losses. Considering the current production process of carbon molecular sieves in the market, thermosetting phenolic resin is used as the adhesive of the base material (foaming material) in the production process of carbon molecular sieves. Such adhesives are required to have A certain initial viscosity is used to carry out extrusion granulation, and the existing phenolic resin waste (uncured) is considered to reduce the viscosity of the phenoli...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a process for preparing carbon molecular sieve binders from waste PF resins, which has the advantages of recycling waste and improving the production quality of carbon molecular sieves, and solves the problem of thermosetting phenolic resin waste as a solid in the prior art. Hazardous wastes are processed, resulting in waste of resources