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Preparation for organic high water absorption and permeation resistant fertilizer

A highly water-absorbing, organic technology, applied in fertilization devices, fertilizer mixtures, agriculture, etc., can solve problems such as high cost and complicated process

Inactive Publication Date: 2002-10-02
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN8510486A introduces the method of manufacturing superabsorbent resin by aqueous solution method, but the process is more complicated and the cost is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Example 1: First take 36 grams of acrylic acid and pour it into a four-necked flask, then add 10 ml of distilled water and 30 ml of ammonia water and stir while heating, and the temperature reaches 80 ° C by adding fertilizer element compound KNO in batches 3 1.9g, CaCl 2 0.44g, MnSO 4 0.3g, KH 2 PO 4 0.17g, KI0.83mg, H 3 BO 3 5.2mg, MnSO 4 22.3mg, ZnSO 4 3.6mg, Na 2 MoO 4 0.25mg, CuSO 4 ·5H 2 O 0.025mg, CoCl 2 0.025mg, FeSO 4 ·7H 2 O27.8mg, fully stirred for reaction and dissolved for 1.5 hours, then added 0.01g of cross-linking agent MBA, continued to stir for 30 minutes, then moved the entire reaction solution to a cylindrical stainless steel polymerization reactor heated to 80 °C in advance, and then added 9.5 grams of corn Starch, stir well and add redox initiator 20wt% (NH 4 ) 2 S 2 o 8 and NaHSO 3 The aqueous solution is 1.5ml each, and the stainless steel reactor is put into a 120 ℃ oven for a period of time to polymerize into a foam-sh...

Embodiment 2

[0008] Example 2: The preparation method is the same as that of Example 1, except that no cross-linking agent and starch are added, an organic anti-seepage fertilizer is made, and the Darcy seepage coefficient is K=5×10 after the implementation of anti-seepage in Naiman sandy soil in Inner Mongolia. -5 cm / S compared with K=6×10 before implementation -3 cm / s leakage is reduced by more than 90%.

Embodiment 3

[0009] Embodiment 3: method is completely with embodiment 1, just replaces the fertilizer element compound with Ca(NO 3 ) 2 ·4H 2 O 0.8g, KNO 3 0.2g, KH 2 PO 4 0.2g, MgSO 4 ·7H 2 O0.2g, MnCl 2 ·H 2 O 0.4g, ZnSO 4 0.05g, CuSO 4 ·5H 2 O 0.05g, Na 2 MoO 4 ·4H 2 O 0.02g, the results are the same as in Example 1.

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Abstract

The present invention uses acrylic acid, starch and fat element compound as raw material, utilizes same equipment and same polymerization process to respectively can produce organic high-hydroscopicity fertilizer or organic leakage-proofing fertilizer, they can be respectively used for leakage prevention in the places of paddy field and fishpond, etc. and can be used for remaking sand soil into paddy field so as to promote agricultural renovation.

Description

technical field [0001] The invention belongs to the manufacturing technology of organic high water absorption and anti-seepage fertilizer technical background [0002] At present, many countries are producing superabsorbent resin (SAR), which is widely used in soil modification and water retention in agriculture, forestry, animal husbandry and planting, and is actively expanding its application scope in industry, medicine and health and other fields. Patent CN8510486A introduces the method of producing superabsorbent resin by the aqueous solution method, but the process is more complicated and the cost is higher. The patent CN1102831A uses metal compounds as initiators to manufacture SAR, and there are some patents, almost all of which are aimed at improving the gel strength, water absorption rate, water absorption speed, and salt water absorption performance of SAR. A lot of research work has been done. As we all know, the growth of plants requires water, fertilizer, air a...

Claims

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Application Information

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IPC IPC(8): C05G3/00C08F251/00
Inventor 崔湘浩韩殷哲王志程爱民李文兴
Owner JILIN UNIV
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