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High-tower compound fertilizer containing lignin and calcium lignosulphonate and preparation method thereof

A kind of technology of calcium lignosulfonate and high tower compound fertilizer

Inactive Publication Date: 2019-12-17
广东瑞丰生态环境科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, most of the domestic use of lignin recovered from papermaking pulp waste liquid is used as additional raw materials. This lignin is a renewable resource through environmental protection treatment. More active substances and special functions will be taken away by the original pulp. The organic matter is generally at 60% %, the content of fulvic acid is about 35%; and lignin, a by-product of the domestic papermaking industry, has a strong sour taste or even a sour smell. Hydrochloric acid is often used for environmental protection treatment, and the content of chloride ions is relatively high.
Moreover, the slow-release function of lignin and its derivatives currently used in China and the affinity with nitrogen, phosphorus and potassium substances are easily changed by high temperature, which is not conducive to the granulation of fertilizers and high-concentration nitrogen, phosphorus, potassium-lignin compound fertilizers. preparation of

Method used

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  • High-tower compound fertilizer containing lignin and calcium lignosulphonate and preparation method thereof
  • High-tower compound fertilizer containing lignin and calcium lignosulphonate and preparation method thereof
  • High-tower compound fertilizer containing lignin and calcium lignosulphonate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] High-tower compound fertilizer containing lignin and calcium lignosulfonate, the formula is as follows:

[0046] 46.5 parts of 36% ammonium nitrate, 29 parts of 52% Manham potassium sulfate, 1 part of instant lignin and calcium lignosulfonate, 3 parts of 74% diammonium phosphate, 20 parts of 72% monoammonium phosphate, 20% anhydrous Magnesium sulfate content 0.5 parts.

[0047] Ammonium nitrate is N32-P4, which is purchased from the market;

[0048] Manham potassium sulfate is K52, CI is less than 3%, purchased from the market;

[0049] Diammonium phosphate is N21-P53, purchased from the market;

[0050] Monoammonium phosphate is N12-P60, purchased from the market;

[0051] Magnesium sulfate is Mg20, is obtained by market purchase;

[0052] The content of organic matter in the instant lignin and calcium lignosulfonate is ≥80%, and the content of fulvic acid is ≥70%.

[0053] Instant lignin and calcium lignosulfonate are small molecule instant lignin and calcium lig...

Embodiment 2

[0077] High-tower compound fertilizer containing lignin and calcium lignosulfonate, the formula is as follows:

[0078] 50 parts of 36% ammonium nitrate, 30 parts of 52% Manham potassium sulfate, 0.5 parts of instant lignin and calcium lignosulfonate, 4 parts of 74% diammonium phosphate, 15 parts of 72% monoammonium phosphate, 20% anhydrous 0.5 parts of magnesium sulfate.

[0079] The preparation method of the high-tower compound fertilizer containing lignin and calcium lignosulfonate is as in Example 1, and will not be described in detail here.

[0080] In the high-tower compound fertilizer containing lignin and calcium lignosulfonate of the present embodiment: N-P 2 o 5 -K 2 O≥57%.

Embodiment 3

[0082] High-tower compound fertilizer containing lignin and calcium lignosulfonate, the formula is as follows:

[0083] 46.5 parts of 36% ammonium nitrate, 29 parts of 52% Manham potassium sulfate, 1.4 parts of instant lignin and calcium lignosulfonate, 3 parts of 74% diammonium phosphate, 20 parts of 72% monoammonium phosphate, 20% anhydrous 0.1 parts of magnesium sulfate.

[0084] The preparation method of the high-tower compound fertilizer containing lignin and calcium lignosulfonate is as in Example 1, and will not be described in detail here.

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Abstract

The invention discloses a high-tower compound fertilizer containing lignin and calcium lignosulphonate, wherein the high-tower compound fertilizer comprises ammonium nitrate phosphate, Mannheim potassium sulfate, instant lignin and calcium lignosulphonate, diammonium phosphate, monoammonium phosphate and anhydrous magnesium sulfate; the instant lignin and calcium lignosulphonate are small molecules, and have the molecular weight of 20 kDa-200 kDa; a small amount of micromolecular instant lignin and calcium lignosulphonate can be organically combined with high-concentration nutrient elements, the slow release function and affinity are not affected by high temperature, and the obtained compound fertilizer is sufficient in nutrient and rich in high-concentration quick-acting nutrient elements, has the advantages of high activity, full water solubility, quick acting, excellent slow release performance and the like, and is efficient and convenient. The invention further discloses a preparation method of the high-tower compound fertilizer containing lignin and calcium lignosulphonate; the preparation process and parameters of the high-tower compound fertilizer are optimized, and the high-tower compound fertilizer is good in stability, easy to pelletize and form and high in activity of effective components.

Description

technical field [0001] The invention relates to the technical field of high-tower compound fertilizer production, in particular to a high-tower compound fertilizer containing lignin and calcium lignosulfonate and a preparation method thereof. Background technique [0002] Lignin is a complex phenolic polymer formed from three alcohol monomers (p-coumaryl alcohol, coniferyl alcohol, sinapyl alcohol). In woody plants, lignin accounts for 25%, which is the second most abundant in the world. Rich in organic matter. Lignin is an environmentally friendly renewable biomass resource, through chemical reactions such as physical blending or sulfonation, methylolation, phenolation, hydrogenolysis, propoxylation, esterification, amination, graft copolymerization, etc. Modification can improve the properties of lignin, and it is widely used in industry, agriculture, construction, mining and other fields. In some developed agricultural countries abroad, the application of lignin and its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05B7/00C05G3/00
Inventor 陈秋雄朱爱军闫保福梁天文
Owner 广东瑞丰生态环境科技股份有限公司
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