Process for production of activated argil

Abstract

A process for producing activated argil without discharge of acidic water and waste water includes such technological steps as dressing ore, ordinary-temp. solid activating by adding acid and water and use of extruding out method, drying, crushing and examination, or dressing ore, beating raw argil to obtain slurry, purifying while discharging sand and water, adding acid and water, activating at 80-100 deg.C for 10-30 min while high-speed stirring at 1000 rpm, suction filter, drying, breaking and examination. Its advantages are no pollution, low cost and simple operation.

Description

technical field [0001] The invention relates to the technical field of activated clay production methods. Background technique [0002] Activated clay, which occupies a certain position in the national economy and is widely used, not only has a long production history and a firm market position, but is still in a rising stage. However, the current production process of activated clay is as follows: figure 1 As shown, whether domestic or foreign, no significant progress has been made for decades, and its high cost, low benefit, and serious acid pollution in the production process have restricted the development and application of this product. Especially in today's environmental protection era, the treatment and discharge of acidic sewage in the production process of activated clay has forced some enterprises with weak capital to close down, stop and transfer due to the lack of huge costs for acid sewage treatment. Chinese patents also have technical reports in this regard....

AI Technical Summary

Problems solved by technology

Be the activation method of bentonite such as the patent No. 90101333.1, the semi-wet method of the patent No. 90105982.X to produce high-efficiency activated clay method, its reaction adopts pressurized reaction to improve the quality and decolorization power of activated clay, still does not solve acidity well sewage pollution problem

Moreover, the production cost and operation difficulty of the reactor are increased to a certain extent

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