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A kind of preparation method of degradable sand-fixing agent

A sand-fixing agent and catalyst technology, applied in chemical instruments and methods, other chemical processes, applications, etc., can solve problems such as pollution in desert areas

Active Publication Date: 2021-07-02
孙美玲
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Problems solved by technology

[0004] Technical problem to be solved by the present invention: Aiming at the problem that most of the current sand-fixing agents are organic polymer products, which are difficult to degrade in nature and cause pollution to desert areas, the present invention provides a preparation method of degradable sand-fixing agent

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preparation example Construction

[0020] The preparation of cactus glue is to mix cactus and water according to the mass ratio of 1:2 and squeeze the juice, collect the squeezed juice, filter, and concentrate the filtrate to 50% of the volume of the filtrate to obtain the cactus glue.

[0021] The configuration of the zein solution is to mix the zein with an ethanol solution with a mass fraction of 85% at a mass ratio of 1:3 to obtain the zein solution.

[0022] The preparation method of biological particles is as follows:

[0023] A. Take bentonite and hydrochloric acid according to the mass ratio of 1:2, ultrasonically shake for 15 minutes, filter, and calcinate the filter cake at 700°C for 1 hour, collect the calcined products, crush them, pass through a 200-mesh sieve, and mix the sieved particles with 0.3mol / L glucose The solution was mixed according to the mass ratio of 1:4 and allowed to stand for 50 minutes, spray-dried, and the dried particles were collected for later use;

[0024] B. In terms of par...

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Abstract

The invention discloses a preparation method of a degradable sand-fixing agent, belonging to the field of sand-fixing agents. The present invention takes peat soil, glucose and water and puts them into a container, mixes them evenly, sprays and dries them, collects the dry matter, performs ball milling, sieves, and collects the sieved particles; acetone, 1,4-butanediol, L-propane Put lactide and dibutyltin dilaurate into the reactor, use carbon dioxide protection, heat up the reaction, cool to room temperature, collect the reaction mixture, and recover acetone, collect the residue; the residue, toluene, trimethylolpropane three Put methacrylate, toluene diisocyanate, sieved particles and catalyst into the reaction kettle and stir, then add triethanolamine to raise the temperature and continue to stir, cool to room temperature, discharge, and collect the discharge; filter the discharge to recover the catalyst, and then Carry out rotary evaporation to recover toluene, collect the rotation residue, and mix the rotation residue, cactus glue and biological particles evenly to obtain a degradable sand-fixing agent.

Description

technical field [0001] The invention belongs to the field of sand-fixing agents, and in particular relates to a preparation method of a degradable sand-fixing agent. Background technique [0002] Desertification is a major global ecological environment problem that mankind is facing at present, perplexing the survival and development of human society, and my country is one of the countries seriously endangered by desertification. The area of ​​desert and desertified land is 1.49 million km 2 , of which the area of ​​desertified land is 334,000 km 2 , which has seriously affected industrial and agricultural production, people's lives and human health, and the ever-increasing sandstorms and the expansion of desertified land have made the ecological environment worse, engulfing the living space of the Chinese nation, and causing serious damage to the national economy and social development. great harm. At the same time, there are often a series of ecological problems such as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C08G18/67C08G18/32C09K105/00
CPCC08G18/3206C08G18/3281C08G18/675C09K17/40C09K2105/00Y02P20/584
Inventor 王景硕施衍刘红妹
Owner 孙美玲
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