A kind of environment-friendly water-retaining agent and preparation method thereof

A water-retaining agent and environment-friendly technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of increased production cost, narrow application range, narrow suitable range, etc., to reduce pollution, long service life, and reduce leaching loss. Effect

Inactive Publication Date: 2011-11-30
INST OF SOIL & FERTILIZER SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems of these water-retaining agents are that the process is relatively complicated, the cost is high, and the suitable range is narrow.
Chinese patent document CN1765852 (application number 200510011017.8) discloses a water-retaining agent with diatomite 60-70% as the main raw material, but because the selected diatomite is the main material, its price is much higher than that of zeolite, and it also increases 3% of urea, 2% of ammonium phosphate, and 1% of potassium sulfate have been used. Although it has played a certain effect of water and fertilizer preservation, its production cost has increased significantly; and it is only suitable for transplanting saplings in arid and semi-arid areas, and its application range is too narrow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Embodiment 1. Environmentally friendly water-retaining agent suitable for field crops and preparation method thereof

[0067] The raw material components of the water-retaining agent are: 70 parts of zeolite powder, 15 parts of composite additive, and 5 parts of superabsorbent resin, wherein the composite additive is made by mixing bentonite and attapulgite at a weight ratio of 1.5:1.

[0068] Crush the raw materials separately, pass through a 80-mesh sieve, mix zeolite powder, composite additives, and superabsorbent resin in parts by weight, add water to make the water content of the mixed raw materials 10%, and transfer them to the sheeting machine through a screw feeder for uniform distribution on the surface Compress between the two pressure rollers of the semi-oblate arc groove, and after falling off, a strip-shaped water-retaining agent can be formed, and then crushed and granulated, and the thin strip-shaped product with a diameter of 3-4mm and a length of 9-10mm ...

Embodiment 2

[0069] Example 2. A water-retaining agent suitable for crops with higher economic value and its preparation method

[0070] The raw material components of the water-retaining agent are: 65 parts of zeolite powder, 15 parts of composite additive, and 8 parts of superabsorbent resin, wherein the composite additive is made by mixing bentonite and attapulgite at a weight ratio of 2:1.

[0071] Crush the raw materials separately, pass through a 80-mesh sieve, mix zeolite powder, composite additives, and superabsorbent resin in parts by weight, add water to make the water content of the mixed raw materials 12%, and send them into the sheeting machine through a screw feeder for uniform distribution on the surface Compress between the two pressure rollers in the diamond-shaped groove, and after falling off, a strip-shaped water-retaining agent can be formed, and then crushed and granulated, and thin strip-shaped products with a diameter of 3-4mm and a length of 9-10mm are screened out,...

Embodiment 3

[0072] Embodiment 3. is suitable for the water retaining agent of tree planting and preparation method thereof

[0073] The raw material components of the water-retaining agent are: 60 parts of zeolite powder, 20 parts of composite additive, and 10 parts of superabsorbent resin, wherein the composite additive is made by mixing bentonite and attapulgite at a ratio of 1:1. The preparation method is the same as in Example 1.

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Abstract

The invention relates to a high-efficiency and environment-friendly water retention agent with zeolite as the main raw material and a preparation method thereof. The parts by weight of raw material components are: 60-80 parts of zeolite powder, 15-35 parts of composite additives, and 2-10 parts of superabsorbent resin. The water-retaining agent has strong water-absorbing and water-releasing functions, and the water-retaining agent has good gel after absorbing water. The water-retaining agent not only has good water-retaining performance, but also has simple preparation process, low cost, environmental protection and no pollution, and is beneficial to industrial production.

Description

technical field [0001] The invention relates to a water-retaining agent and a preparation method thereof, in particular to a low-cost, high-efficiency and environment-friendly water-retaining agent with natural mineral zeolite as the main raw material and a preparation method thereof. Background technique: [0002] my country is a country that is very short of water resources, and the per capita water consumption is only 1 / 4 of the world's average level. After entering the 21st century, with the aggravation of drought and water shortage, population growth, urbanization and rapid socio-economic development, the contradiction of water use in my country has become increasingly acute. Agriculture is the industry with the greatest water-saving potential in my country. It has become a consensus that the development of modern water-saving agriculture is a major strategic measure to ensure my country's food security, water security and ecological security. At present, the research ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/00C08L101/00
Inventor 张英鹏孙明李彦刘建军崔荣宗陈建友
Owner INST OF SOIL & FERTILIZER SHANDONG ACAD OF AGRI SCI
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