Production method of attapulgite snowmelt agent

A production method, attapulgite technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of high production cost and cumbersome process, and achieve the effect of no environmental pollution, simple process and low production cost

Inactive Publication Date: 2010-05-12
XUYI HENGXIN CLAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The disadvantage of the above-mentioned patent is that the invention adopts the method of immersing-filtering the solution-drying the whole process for 1-10 times to prepare the anti-freeze deicing agent, and its soluble salt deicing agent still contains calcium chloride, magnesium chloride and chloride Potassium and other salts
Make calcium magnesium acetate (CMA) into a saturated solution, add zeolite or diatomaceous earth to soak-filter the solution-dry the whole process 1-10 times, not only the process is cumbersome, but also the production cost is very high

Method used

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Embodiment Construction

[0028] Below in conjunction with embodiment the present invention will be further described:

[0029] The production method of the attapulgite deicing agent is characterized in that (1) the ingredients of the attapulgite mixture are input into a mixer for stirring, and after being stirred evenly, they are added to the immersion pool; (2) the diluted glacial acetic acid is slowly added to the attapulgite in the immersion pool Carry out acidification treatment in the rod mixture, and the acidification time is controlled at 24 hours; (3) input the acidified attapulgite rod mixture into an extruder to extrude into a sheet, and the thickness of the sheet is ≤ 3 mm; (4) the sheet The flakes are transported to the rotary drum dryer for slow drying, the drying time is 3 hours, the drying temperature is controlled at 65-75°C, and the dried flakes are semi-finished products of the attapulgite snow-melting agent; (5) the attapulgite snow-melting agent The semi-finished products are input...

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Abstract

The invention discloses a production method of an attapulgite snowmelt agent. The production method comprises the technical essentials of mixing the ingredients of the attapulgite snowmelt agent, and then acidizing, extruding, drying, crushing, sieving, and packaging to obtain finished products. In the production method, diluted glacial acetic acid is slowly added to the attapulgite for acidizing, and the glacial acetic acid is slowly reacted with magnesium oxide, aluminum oxide and calcium carbonate in an attapulgite mixture to generate acetates of calcium acetate, magnesium acetate, aluminium acetate and the like; because the acetates in the attapulgite snowmelt agent is loaded in the mixture of attapulgite clay, ground calcium carbonate and bentonite, timely clearing the residues of the attapulgite snowmelt agent after snow melting can prevent waste water derived from melted ice and snow from flowing to farmland, greenbelts and underground without the influence on regular growth of crops and afforestation plants and road surface damage as well as corrosion action on metals. The production method of the attapulgite snowmelt agent has simple process and low production cost, and is suitable for producing various salt type snowmelt agents.

Description

technical field [0001] The invention relates to a deicing agent, in particular to a production method of an attapulgite deicing agent. Background technique [0002] Snow melting agent, also known as deicing salt and road antifreeze, is a widely used deicing agent in winter. additives, etc. [0003] "Chloride salt" deicing agents are better for snow melting and antifreeze, and the price is also cheap. After the ice or snow melts into liquid, its salt residues will accumulate in farmland and green belts, which will cause damage to crops and green plants. A large number of deaths will shorten the life of the road. The chemical reaction between the salt and the asphalt will cause the asphalt surface to fall off, and the road surface will be damaged under the action of the driving load. One of the important factors, it seriously threatens the safety of industrial facilities. After "chlorine salt" substances enter the ground, they will also pollute the local groundwater resourc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18
Inventor 许庆华袁长兵许盛英
Owner XUYI HENGXIN CLAY TECH
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