High-calcium edible salt produced by calcium-containing mirabilite-type mineral halide and producing method thereof

A technology of glauberite and edible salt, which is applied in the field of high-calcium edible salt and the production of the high-calcium edible salt, which can solve the problems that rock salt-associated glauberite has no mineral resource exploitation and utilization, and rock salt-associated glauberite resources cannot be exploited, etc.

Active Publication Date: 2013-03-20
江苏苏盐井神股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of theory and practice, the associated glauberite resources in rock salt cannot be exploited by simple freshwater water-soluble mining methods. For now, the associated glauberite resources in rock salt have not been mined and utilized as mineral resources.

Method used

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  • High-calcium edible salt produced by calcium-containing mirabilite-type mineral halide and producing method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0077] First, according to the method described in the patent 201110006672.X, the distillation waste liquid containing 90g / L calcium chloride and 40g / L sodium chloride (that is, ammonia alkali waste liquid) produced by soda ash production is used instead of 50% fresh water to inject Glauber’s salt type Mining brine in the mine to produce CaCl 2 High-calcium brine with a content of 20g / L and a NaCl content of 290g / L; secondly, use a multi-effect evaporator (Shanghai Dingtai Evaporator Co., Ltd., evaporator + Austrian Reichenhall company, MVR) to evaporate and concentrate the above-mentioned calcium-containing brine (work The parameters are: temperature 60°C, pressure 0.05Mpa, evaporation, concentration and crystallization until the calcium chloride in the solution reaches 150g / L), the feed liquid passes through the liquid cyclone separator, and the mother liquid a1 and sodium chloride crystal solid b1 are separated. Sodium chloride crystal b1 is separated as a product, washed w...

Embodiment 2

[0080] First, according to the method described in the patent 201110006672.X, the distillation waste liquid containing 100g / L calcium chloride and 50g / L sodium chloride produced by soda ash production is used instead of all fresh water to inject mirabilite-type mines for brine mining to produce CaCl 2 High-calcium brine with a content of 70g / L and a NaCl content of 250g / L; secondly, a multi-effect evaporator (Shanghai Dingtai Evaporator Co., Ltd., evaporator + Austrian Reichenhall company, MVR) evaporates and concentrates the above-mentioned calcium-containing brine (working parameters It is: temperature 90°C, pressure 0.09Mpa, evaporating, concentrating and crystallizing until the calcium chloride in the solution reaches 200g / L), the feed liquid passes through the liquid cyclone separator, and the mother liquid a1 and sodium chloride crystal solid b1 are separated. The sodium chloride crystal b1 is separated as a product, then washed with saturated brine, dehydrated by a centr...

Embodiment 3

[0082] First, according to the method described in the patent 201110006672.X, the distillation waste liquid containing 130g / L calcium chloride and 60g / L sodium chloride produced by soda ash production is used instead of 50% fresh water to inject mirabilite-type mines for brine mining to produce CaCl 2 High-calcium brine with a content of 50g / L and a NaCl content of 280g / L; secondly, a multi-effect evaporator (Shanghai Dingtai Evaporator Co., Ltd., evaporator + Austrian Reichenhall company, MVR) evaporates and concentrates the above-mentioned calcium-containing brine (working parameters It is: temperature 120°C, pressure 0.10Mpa, evaporating, concentrating and crystallizing until the calcium chloride in the solution reaches 180g / L), the feed liquid is passed through a hydrocyclone, and the mother liquid a1 and sodium chloride crystal solid b1 are separated. The sodium chloride crystal b1 is separated as a product, then washed with saturated brine, dehydrated by a centrifuge, and...

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Abstract

The invention discloses a high-calcium edible salt and a preparation method of the high-calcium edible salt, wherein the high-calcium edible salt is prepared by the following steps of: replacing all or partial fresh water by an ammonia-soda waste liquid or a water solution containing calcium chloride, and injecting into a mirabilite-type mine to obtain high-calcium brine; evaporating and condensing the high-calcium brine; implementing solid-liquid separation on the material liquid; evaporating and condensing the mother liquid twice; mixing solids obtained from various times of solid-liquid separation on the material liquid; after mixing, centrifuging and separating the mixture until the solid contains 2-4% of water; and drying to obtain the high-calcium edible salt which is rich in calcium ions. The high-calcium edible salt disclosed by the invention is accordant with standard of GB28050-2011 General Principles for Nutrition Label of Prepackaged Foods, Food Safety National Standard, and the preparation method disclosed by the invention reserves the natural calcium element in the 1000m deep well salt; and meanwhile, the chemical wastes are turned into raw materials for other industries, thus having a significance of protecting the environment.

Description

technical field [0001] The invention belongs to the field of condiments, and in particular relates to a high-calcium edible salt produced by utilizing calcium-containing Glauber's salt type bittern and a method for producing the high-calcium edible salt. Background technique [0002] Calcium is one of the indispensable nutrients for the human body. Without calcium, there would be no life at all. Calcium is the most abundant mineral in the human body. It participates in the entire life process of the human body and is the foundation of human life. From bone formation, muscle contraction, heart beating, nerve and brain thinking activities, to the growth and development of the human body, eliminating fatigue, strengthening the brain, improving intelligence, and delaying aging, it can be said that all activities of life are inseparable from calcium. Calcium can enhance people's endurance, make people energetic and psychologically stable. Sufficient calcium in the body can effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01D3/08
Inventor 王桂春戴克洋任必锐刘春华
Owner 江苏苏盐井神股份有限公司
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