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Multielement compound fertilizer produced by utilizing waste catalyst and production method thereof

A production method and technology of compound fertilizer, applied in the application, fertilization device, fertilizer mixture and other directions, can solve the problems of unreasonable nutrient ratio, high use cost, unable to meet the demand of nutrients, etc., and achieve harmless treatment and resources. Chemical utilization, more nutrients, good fertilizer effect

Inactive Publication Date: 2012-03-14
SHANDONG SHUNTIAN CHEM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] my country is a big agricultural country, and fertilizer is an important material for the survival of crops. There are countless types of fertilizers in the market, and fertilizers have also developed from the original single fertilizer to the current compound fertilizer (compound fertilizer). Fertilizers are favored by farmers for their advantages of many types of nutrients and good physical properties. However, compound fertilizers still have the following defects in the market: first, the proportion of nutrients required by crops is unreasonable, and second, the types of elements are limited.
In particular, trace elements such as cobalt and molybdenum are expensive to use, and compound fertilizer manufacturers basically do not add them, so they still cannot meet the nutrient needs of different plants in different production periods.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] Raw material and weight ratio

[0025] 1.2 parts of waste catalyst, 1500 parts of mixed fertilizer;

[0026] production method:

[0027] 1. Acidify the waste catalyst with 98% sulfuric acid, and the consumption of sulfuric acid is 1.1 times of the molar weight of metal oxides participating in the acidification reaction in the waste catalyst to obtain acidification clear liquid and waste residue;

[0028] 2. Import the acidified clear liquid obtained in step 1 into the ammonium aluminum sulfate reactor, add ammonium chloride to generate ammonium aluminum sulfate crystals, and cool to a temperature below 35°C;

[0029] 3. After the ammonium aluminum sulfate crystals are separated by centrifugation, clear liquid A is obtained for subsequent use;

[0030] 4. Use the waste residue obtained in step 1 with a concentration of 15-20%, and the dosage is MoO in the waste residue 3 Soak in ammonia water 2.6 times the molar amount, the soaking temperature is controlled at 70-80°C...

Embodiment approach 2

[0035] Raw material and weight ratio

[0036] 1 part of waste catalyst, 1200 parts of mixed fertilizer

[0037] production method:

[0038] 1. Acidify the waste catalyst with 98% sulfuric acid, and the amount of sulfuric acid is 1.1 times of the molar weight of metal oxides participating in the acidification reaction in the waste catalyst to obtain acidification clear liquid and waste residue;

[0039] 2. Import the acidified clear liquid obtained in step 1 into the ammonium aluminum sulfate reactor, add ammonium chloride to generate ammonium aluminum sulfate crystals, and cool to a temperature below 35°C;

[0040] 3. After the ammonium aluminum sulfate crystals are separated by centrifugation, clear liquid A is obtained for subsequent use;

[0041] 4. Use the waste residue obtained in step 1 with a concentration of 15-20%, and the dosage is MoO in the waste residue 3 Soak in ammonia water 2.6 times the molar amount, the soaking temperature is controlled at 70-80°C, the pH ...

Embodiment approach 3

[0046] Raw material and weight ratio

[0047] 1.5 parts of waste catalyst, 1400 parts of mixed fertilizer

[0048] production method:

[0049] 1. Acidify the waste catalyst with 98% sulfuric acid, and the amount of sulfuric acid is 1.1 times of the molar weight of metal oxides participating in the acidification reaction in the waste catalyst to obtain acidification clear liquid and waste residue;

[0050]2. Import the acidified clear liquid obtained in step 1 into the ammonium aluminum sulfate reactor, add ammonium chloride to generate ammonium aluminum sulfate crystals, and cool to a temperature below 35°C;

[0051] 3. After the ammonium aluminum sulfate crystals are separated by centrifugation, clear liquid A is obtained for subsequent use;

[0052] 4. Use the waste residue obtained in step 1 with a concentration of 15-20%, and the dosage is MoO in the waste residue 3 Soak in ammonia water 2.6 times the molar amount, the soaking temperature is controlled at 70-80°C, the p...

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Abstract

The invention discloses a compound fertilizer and a production method thereof which belong to the field of farm-oriented chemical fertilizers, and particularly relates a multielement compound fertilizer which utilizes the waste catalyst produced in the chemical industrial process to supply microcomponent contents and a production method thereof. After the waste catalyst is physically and chemically treated, certain trace elements in the waste catalyst can be separated as the water soluble saline solution which is then sprayed and mixed with the compound fertilizer, so the compound fertilizer with full nutrient can be formed, meanwhile, a small quantity of aluminium, barium and trace heavy metal are settled and separated as inorganic compound with commercial value, the inorganic compound can be sold as byproducts, so the catalyst environmental pollution problem is solved, and the catalyst biosafety disposal and resource utilization are realized too; and the obtained compound fertilizerhas more nutrients, the fertilizer efficiency is good, the compound fertilizer is better than various fertilizers which are sold in the market, and the national compound fertilizer standard is reached.

Description

technical field [0001] The compound fertilizer and its production method of the present invention belong to the field of agricultural chemical fertilizers, and in particular relate to a multi-element compound fertilizer which uses waste catalyst produced in the chemical industry process to supplement the content of trace components and its production method. technical background [0002] my country is a big agricultural country, and fertilizer is an important material for the survival of crops. There are countless types of fertilizers in the market, and fertilizers have also developed from the original single fertilizer to the current compound fertilizer (compound fertilizer). Fertilizers are favored by farmers because of their many types of nutrients and good physical properties. However, compound fertilizers still have the following defects in the market: first, the proportion of nutrients required by crops is unreasonable, and second, the types of elements are limited. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 李东田尹作鹏岳广宇冯尚武时京喜
Owner SHANDONG SHUNTIAN CHEM GRP
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