Treatment method of waste acid, oil shale ash and white mud

A technology for oil shale ash and treatment method, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve the problem of huge equipment investment, serious energy consumption, and difficulty in meeting the requirements of continuous production, etc. problems, to achieve continuous and stable production and reduce the effect of generation
CN107570108AInactive Publication Date: 2018-01-12HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Publication Date
2018-01-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a treatment method of waste acid, oil shale ash and white mud, relates to a treatment method of industrial wastes and in particular relates to the technical field of comprehensive utilization of industrial wastes including the oil shale ash, the white mud and the waste acid and preparation of a heavy metal sewage and waste liquid treatment material. The white mud is added and is used as an additive so that the waste acid recycling effect is improved; the recycled acid is extracted through a gradient extraction method to separate a mixture of the oil shale ash and the white mud; metal ions in an extracting solution are combined to prepare magnetic hydrotalcite and hydrated calcium silicate. According to the treatment method provided by the invention, the industrial wastes are used as raw materials to prepare a high-performance adsorbent and an adsorption material can be recycled.
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Description

technical field

[0001] The invention relates to a treatment method for industrial waste, in particular to the technical field of comprehensive utilization of industrial waste such as oil shale ash, white mud, waste acid and preparation of sewage and waste liquid treatment materials. Background technique

[0002] Three kinds of industrial waste components and their hazards

[0003] 1.1 Composition and hazards of oil shale ash

[0004] Oil shale has huge reserves and is generally considered to be an important alternative energy source for oil and natural gas. Due to the high ash content of oil shale, oil shale ash is the most important by-product in the process of processing and utilization. Stacking ash not only takes up a lot of land, but also causes serious environmental pollution. The main components of oil shale ash are quartz, feldspar and calcite, of which the content of quartz and feldspar is relatively high. The following table shows the chemical composition of oil...

Claims

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