Environment-friendly snow-melting agent and method for preparing snow-melting agent by using amino acid fermentation liquid

An amino acid and deicing agent technology, applied in the field of soluble amino acid deicing agent and its preparation, biodegradable deicing agent, can solve the problem of low melting temperature of deicing agent, achieve low melting temperature, simple and feasible method, Effect of improving soil structure

Active Publication Date: 2017-02-22
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 a...

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 ℃, the fluidized bed granulation time is controlled at 60S, and the collected spherical particles are sieved to obt...

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PUM

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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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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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