Method for preparing anti-freezing deicing salt

A snow-melting agent and anti-freezing technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problem of short-term snow-melting effect, achieve the effect of improving snow-melting effect, easy removal, and increasing friction coefficient

Inactive Publication Date: 2008-08-27
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the existing soluble salt deicing agents, provide an anti-freezing deicing a

Method used

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  • Method for preparing anti-freezing deicing salt

Examples

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Example Embodiment

[0020] Example 1: Magnesium chloride, calcium chloride, and potassium chloride are made into a saturated solution at 20°C with a molar ratio of 7:2:1. The sign of becoming the desired saturated solution is that a small amount of solid exists in the solution. Soak sepiolite between 10 mesh and 80 mesh for 15 minutes, filter off the solution, dry the sepiolite particles at 120°C, and then go through a process of soaking-filtering-off-drying to produce antifreeze type Deicing agent.

Example Embodiment

[0021] Example 2: Make calcium magnesium acetate (CMA) into a saturated solution at 100°C. The sign of becoming the desired saturated solution is that a small amount of solid exists in the solution. Add diatomaceous earth with a particle size between 10 mesh and 80 mesh Soak for 45 minutes, filter off the solution, and then dry at 105°C to constant weight. After 5 cycles of soaking-filtering-drying, the anti-freeze deicing agent can be prepared.

Example Embodiment

[0022] Example 3: Calcium magnesium acetate (CMA) and potassium dihydrogen phosphate are made into a saturated solution at 80°C with a mass ratio of 8:2. The sign of becoming the desired saturated solution is that a small amount of solid exists in the solution. Soak in zeolite between 10 mesh and 80 mesh for 30 minutes, filter off the solution, and then dry it at 110°C to constant weight. After four cycles of soaking-filtering-drying, the antifreeze type can be obtained Deicing agent.

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Abstract

The invention relates to a process for preparing freezing resistance type deicing agent, which belongs to the deicing agent field, the technical proposal is that the process adopts the existing soluble salt deicing agent to prepare. The process for preparation comprises the following steps: firstly, adopting zeolite, bergmeal, meerschaum and other particles to load soluble salt deicing agent to prepare into saturated solution under the temperature which is 20-100 DEG C, secondly, adding inorganic non-metal porous material whose particle diameter is 10 order to 80 order into the saturated solution to immerse for 15min-45min, thirdly, filtering and drying the solution, and finally, drying inorganic non-metal porous material in 105 DEG C to 120 DEG C to be constant weight. In order to prepare freezing resistance type deicing agent which is suitable for different ice and snow weather, the step two and the step four are repeated, namely the whole process of immersing, leaching solution and drying for 1-10 times. The invention provides a deicing agent which can save energy and protect environment, which feasibly solves the shortcoming that deicing effect in the existing utilization mode is transient, the deicing agent can effectively accelerate the disintegration of ice layer, and can reduce the resistance force in the process of manually and mechanically breaking ice and removing snow.

Description

technical field [0001] The preparation method of an anti-freezing type snow-melting agent belongs to the field of snow-melting agents, and relates to the manufacture of a novel anti-freezing type snow-melting agent. Background technique [0002] With the acceleration of urbanization in our country and the improvement of people's life rhythm, the adverse effects of ice and snow weather on cities and road traffic in winter have become more and more prominent. There came a great loss. Although the use of existing deicing agents has largely solved the adverse effects of ice and snow on citizens' trips, most of the current processes of using deicing agents are to throw soluble salts. This usage mode of deicing agent can only melt ice and snow temporarily, and along with melting of ice and snow, soluble salt flows into sewer with ice and snow water and drains away, and the effect of deicing agent melting ice and snow can't last. Simultaneously, this mode of use can only make ice...

Claims

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Application Information

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IPC IPC(8): C09K3/18
Inventor 严建华崔素萍王峰王亚丽张志龄邹玉林李智丰冯乃谦
Owner BEIJING UNIV OF TECH
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