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An environment-friendly deicing agent and method for preparing the deicing agent using amino acid fermentation liquid

An amino acid and snow-melting agent technology, applied in chemical instruments and methods, applications, organic fertilizers, etc., can solve the problems of low snow-melting temperature of snow-melting agents, achieve low snow-melting temperature, high snow-melting rate, and solve the effect of soil salinization

Active Publication Date: 2018-02-16
南京通持环保技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to aim at the defects of the prior art, to provide an environment-friendly deicing agent and a method for preparing the deicing agent by using amino acid fermentation liquid. harm, can avoid the soil salinization problem caused by the application of conventional inorganic deicing agents; the preparation method is simple and easy, and the cost is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Suck 100 parts by weight of the glutamic acid fermentation broth into the multi-effect evaporator after exchanging and extracting amino acids with an ion exchange column, turn on the steam, circulation pump and vacuum, concentrate to 1 / 5 of the original volume, and pump the concentrated mother liquor into the stirring In the tank, add activated clay / activated carbon of 1% of the concentrated mother liquor quality for decolorization, the decolorization temperature is controlled at 50°C, the decolorization time is 1 hour, pressure filtration, to another mixed reaction kettle, add urea (addition amount is snow melting agent dry weight 1%), the product is neutralized with ammonia water to a pH value of 7-8 to obtain a viscous fluid; then fluidized bed spray granulation, the fluidized bed granulation temperature is 600-800 °C, and the temperature of the exhaust gas is not low At 600°C, the fluidized bed granulation time is controlled at 20S, and the collected spherical partic...

Embodiment 2

[0026] Inhale 100 parts by weight of the glutamic acid fermentation broth extracted by ion exchange column into the multi-effect evaporator, turn on the steam, circulation pump and vacuum, concentrate to 1 / 5 of the original volume, and pump the concentrated mother liquor into the stirring tank Inside, pass into activated clay / activated carbon decolorization that adds concentrated solution quality 5wt%, decolorization temperature to 70 ℃, decolorization time 1 hour, pressure filtration, to another mixed reaction kettle, add urea (addition is 5% of the dry weight of deicing agent) %), the product is neutralized with ammonia water to a pH value of 7 to 8 to obtain a viscous fluid; then fluidized bed spray granulation, the fluidized bed granulation temperature is 600-800 °C, and the temperature of the exhaust gas is not lower than 600 °C ℃, the fluidized bed granulation time is controlled at 60S, and the collected spherical particles are sieved to obtain the deicing agent. Test co...

Embodiment 3

[0028] Extract 100 parts by weight of the xanthan gum fermentation liquid into the multi-effect evaporator after exchanging and extracting amino acids with an ion exchange column, turn on the steam, circulation pump and vacuum, concentrate to 1 / 5 of the original volume, and pump the concentrated mother liquor into the stirring tank Inside, pass through the activated clay / activated carbon decolorization that adds concentrated solution quality 5wt%, decolorization temperature to 70 ℃, decolorization time 1 hour, press filter, to another mixing reactor, add urea (addition is 20% of the dry weight of deicing agent) %), the product is neutralized with ammonia water to a pH value of 7 to 8 to obtain a viscous fluid; then fluidized bed spray granulation, the fluidized bed granulation temperature is 600-800 °C, and the temperature of the exhaust gas is not lower than 600 °C ℃, the fluidized bed granulation time is controlled at 60S, and the collected spherical particles are sieved to o...

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Abstract

The invention relates to an environment-friendly snow-melting agent and a method for preparing the snow-melting agent by using an amino acid fermentation liquid. The main components of the snow-melting agent include organic acid ammonium salt, amphoteric amino acid ammonium sulfate salt, ammonium sulfate and urea. The method comprises the following steps: using a residual liquid after extracting amino acid from the amino acid fermentation liquid or whey protein hydrolysate as a raw material; firstly conducting concentrating; then conducting decolorization of the concentrated solution; conducting filtration; adding the urea in the obtained filtrate; neutralizing a product with ammonium hydroxide until pH of the product is 7-8 to obtain a viscous fluid; conducting spraying granulation with a fluidized bed to obtain the snow-melting agent. The snow-melting agent has low snow melting temperature, is easy to dissolve and has zero damage to the environment, the biodegradation is complete, and the problem of soil salinization caused by a conventional inorganic snow-melting agent is avoided. The preparation method is simple to operate and low in cost.

Description

technical field [0001] The invention relates to a deicing agent, in particular to a biodegradable and easily soluble amino acid deicing agent and a preparation method thereof, which is also an organic fertilizer for greening plants after melting snow, and belongs to the technical field of environmental protection. Background technique [0002] In the alpine regions of our country and many countries in the world, ice and snow in winter have become a serious public nuisance. The deep snow and smooth road surface have caused serious consequences such as traffic jams, accidents, highway outages, and airport closures. Generally, the snow-melting and deicing agent is sprayed on the surface after snow to achieve the snow-melting and deicing effect. The development of snow-melting and deicing agents has gone through a process from a single salt type, an inorganic chlorine salt type to an organic type and a composite anti-corrosion type. However, the above-mentioned types of deicing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/18C09K17/40C05C13/00C09K101/00
CPCC05C3/00C09K3/185C09K17/40C09K2101/00C05C9/00C05C11/00
Inventor 杨云军杨伦姜自营
Owner 南京通持环保技术有限公司
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