Citric acid mushroom residue co-production activated carbon
A technology of activated carbon and citric acid, which is applied in the direction of carbon compounds, inorganic chemistry, chemical instruments and methods, etc., can solve the problems of polluted environment, high corrosion of equipment, and application restrictions, and achieve the effect of simple preparation
Inactive Publication Date: 2021-10-29
王德桂 +1
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However, the chemical activation method has three disadvantages: it is very corrosive to the equipment; it pollutes the environment; there are chemical activators in the activated carbon, and the application is limited.
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[0013] The present invention is further described below through specific examples, but the present invention is not limited only to the following examples. Within the scope of the present invention or without departing from the content, spirit and scope of the present invention, changes, combinations or substitutions to the present invention are obvious to those skilled in the art and are included in the scope of the present invention Inside.
[0014] A kind of citric acid bacteria slag co-production activated carbon, comprises the following steps:
[0015] (1) The carbon residue after extracting glucosamine contains acidic HCL, which is neutralized with dilute alkali solution, the solution enters the waste water tank for treatment, and the carbon residue enters the rinsing tank, washed and dehydrated for later use;
[0016] (2) Activation: Put the cleaned and dedried carbon slag into the activation furnace, heat up to 800 degrees, and activate for 30 minutes. The activation ...
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The invention discloses citric acid mushroom residue co-production activated carbon, which is prepared by the following steps: (1) neutralizing carbon residue containing acidic HCL after glucosamine extraction with a dilute alkali solution, treating the solution in a wastewater tank, and washing and dehydrating the carbon residue in a rinsing tank for later use; (2) activation: putting the selected, cleaned and dried carbon residues into an activation furnace, heating to 800 DEG C, activating for 30 minutes, controlling the activation time according to the volume in the furnace, cooling after activation, transferring the material into a cooling furnace under the conditions that air is cut off by PT to prevent carbonization, and naturally cooling the activated material to room temperature; (3) grinding the cooled materials into qualified meshes by using a grinding machine; and (4) testing, packaging and obtaining a finished product. The preparation method is simple, leftover citric acid mushroom residues in the citric acid production process are used for extraction, waste black carbon residues of a glucosamine hydrochloride product are recycled, and activated carbon is generated. By means of the technology, carbon resources are recycled, ten thousands of tons or more of energy can be saved for the country, and the method is economical and environmentally friendly.
Description
technical field [0001] The invention relates to the field of activated carbon preparation, in particular to activated carbon co-produced from citric acid bacteria residue. Background technique [0002] At present, in terms of activated carbon production technology, it is common to use chemical activation to pretreat raw materials. The most representative chemical activation method pretreatment is: zinc chloride method, phosphoric acid (salt) method, calcium chloride method and chemical activation method with alkali as activator (alkali method). The chemical activation method is a method in which chemicals are added to raw materials, and then heated in an inert gas medium for carbonization and activation. However, the chemical activation method has three disadvantages: it is very corrosive to the equipment; it pollutes the environment; there are chemical activators in the activated carbon, and its application is limited. Due to the shortage of carbon resources, the comprehe...
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IPC IPC(8): C01B32/324
CPCC01B32/324
Inventor 王德桂王健
Owner 王德桂