Preparation method and application of calcite-rhodochrosite solid solution

A rhodochrosite and solid solution technology, applied in chemical instruments and methods, manganese nitrate, inorganic chemistry, etc., can solve the problems of safety hazards, manganese secondary pollution, low crystallinity of manganese slag, etc., and achieve low cost and easy control.
CN112174180APending Publication Date: 2021-01-05GUILIN UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUILIN UNIVERSITY OF TECHNOLOGY
Publication Date
2021-01-05

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Abstract

The invention discloses a method for synthesizing calcite-rhodochrosite mixed crystal solid solution by a precipitation method. The method comprises the steps of obtaining calcite-rhodochrosite mixedcrystal solid solution with high crystallinity and good stability by using an ammonium bicarbonate preparation solution as a base solution and then adding anhydrous calcium nitrate and manganous nitrate in different molar ratios into the ammonium bicarbonate solution. Finally, a proper quantity of calcite-rhodochrosite solid solution is dissolved in three different solutions at the temperature of25 DEG C, and the rules of migration, transformation and enrichment of manganese in the environment are mastered. Compared with calcite-rhodochrosite synthesized through a traditional precipitation method, the calcite-rhodochrosite series solid solution synthesized through the method has the advantages of being low in cost, easy to control, capable of achieving long-term stable storage of manganese in the environment and the like.
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Description

technical field

[0001] The invention belongs to the field of environmental protection, safety and technology, and relates to a method for synthesizing a calcite-rhodochrosite mixed crystal solid solution and an application thereof. The method utilizes that manganese ions can replace calcium ions and enter the calcite crystal lattice to form a complete solid solution of calcite-rhodochrosite series. Background technique

[0002] Manganese is a heavy metal element with certain toxicity, and its manganese compounds have certain impacts on the environment and human health. However, manganese is also a trace element required by the human body and a nutrient required by animals and plants. For non-biodegradable manganese, it may lead to the occurrence of various diseases. According to the World Health Organization (2011), the maximum level of manganese in drinking water is 0.05mg / L. High levels of manganese in water may cause problems with the human nervous and respiratory syste...

Claims

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