Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Compound fertilizer specially used for tobacco and method for preparing compound fertilizer by adopting phosphorite flotation tailings

A technology for flotation tailings and compound fertilizers, which is applied in urea compound fertilizers, applications, nitrogen fertilizers, etc., can solve the problems of ineffective utilization of materials and occupation of land resources, avoid nutrient deficiency or local enrichment, improve structure, The effect of improving biological traits

Inactive Publication Date: 2018-04-13
中化重庆涪陵化工有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The long-term stockpiling of these tailings not only occupies a large amount of land resources, but also poses safety risks, and the large content of P in the tailings 2 o 5 , MgO, CaO and other substances cannot be effectively utilized

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Compound fertilizer specially used for tobacco and method for preparing compound fertilizer by adopting phosphorite flotation tailings
  • Compound fertilizer specially used for tobacco and method for preparing compound fertilizer by adopting phosphorite flotation tailings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 7

[0036] A kind of method that adopts phosphate ore flotation tailings to prepare above-mentioned special compound fertilizer for tobacco is prepared according to the following steps:

[0037]In parts by weight, add 200 parts of phosphate rock flotation tailings and 150 parts of water into the reactor, mix well and stir evenly, then add 150 parts of nitric acid with a concentration of 65% into the reactor, and stir for 5 minutes Filter and keep the filtrate; add 100 parts of monoammonium phosphate, 50 parts of ammonium nitrate, 50 parts of urea, 300 parts of potassium nitrate, 190 parts of potassium dihydrogen phosphate in the filtrate, and when it is fully dissolved, add 15 parts of humic acid, 2 Part of agricultural borax, 2 parts of zinc sulfate, 2 parts of ammonium heptamolybdate and 2 parts of ferrous sulfate, fully stirred and dissolved, and finally feed ammonia to adjust the pH value of the solution to 6.0-7.0 to obtain fertilizer slurry; Concentrate, spray and granulate,...

Embodiment 8

[0040] A kind of method that adopts phosphate ore flotation tailings to prepare above-mentioned tobacco-specific compound fertilizer, carries out according to the following steps:

[0041] In parts by weight, add 150 parts of phosphate rock flotation tailings and 200 parts of water into the reactor, mix well and stir evenly, then add 100 parts of nitric acid with a concentration of 65% into the reactor, react for 10 minutes and then filter , retain the filtrate; add 200 parts of monoammonium phosphate, 50 parts of ammonium nitrate, 50 parts of urea, 300 parts of potassium nitrate, 100 parts of potassium dihydrogen phosphate, and 100 parts of potassium sulfate in the filtrate, and after it is fully dissolved, add 15 parts of rotten Phenolic acid, 5 parts of agricultural borax, 5 parts of zinc sulfate, 5 parts of ammonium heptamolybdate and 5 parts of ferrous sulfate are fully stirred and dissolved, and finally feed ammonia to adjust the pH value of the solution to obtain fertili...

Embodiment 9

[0043] A kind of preparation method that adopts phosphate ore flotation tailings to prepare above-mentioned tobacco-specific compound fertilizer, carries out according to the following steps:

[0044] In parts by weight, add 250 parts of phosphate rock flotation tailings and 200 parts of water into the reactor, mix well and stir evenly, then add 200 parts of nitric acid with a concentration of 65% into the reactor, react for 10 minutes and then filter , retain the filtrate; add 100 parts of monoammonium phosphate, 70 parts of ammonium nitrate, 80 parts of urea, 300 parts of potassium nitrate, 90 parts of potassium dihydrogen phosphate in the filtrate, and wait for it to fully dissolve, then add 10 parts of humic acid, 1 part of Agricultural borax, 1 part of zinc sulfate, 1 part of ammonium heptamolybdate and 1 part of ferrous sulfate are fully stirred and dissolved, and finally ammonia gas is introduced to adjust the pH value of the solution to 6.0-7.0 to obtain fertilizer slur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a compound fertilizer specially used for tobacco. The compound fertilizer is mainly prepared from phosphorite flotation tailings acid hydrolysate, monoammonium phosphate, nitramine, urea, sylvite, micronutrient fertilizer and humic acid, and in the compound fertilizer, a large quantity of nutrient elements, namely nitrogen, phosphorus and potassium, medium elements, namelycalcium and magnesium, microelements, namely boron, zinc, molybdenum and iron, and humic acid are contained. In the compound fertilizer, various nutrient elements are reasonably proportioned, and thecompound fertilizer can be used for promoting tobacco plants to grow and develop very well and improving the yield and quality of tobacco leaves compared with nitrogen phosphorus potassium compound fertilizer sold on the market. The invention further discloses a method for preparing the compound fertilizer specially used for the tobacco by adopting phosphorite flotation tailings, the preparation method disclosed by the invention can make full use of the phosphorus, calcium and magnesium elements in the tailings, the phosphorus, calcium and magnesium elements can be tactfully applied to producethe compound fertilizer specially used for the tobacco, the prepared compound fertilizer is convenient to use directly, the resource utilization of tailings waste is realized, and the compound fertilizer has important economic and environmental protection benefits.

Description

technical field [0001] The invention relates to a topdressing fertilizer for crops and a method for producing the topdressing fertilizer by using low-grade phosphate rock, in particular to a special compound fertilizer for tobacco and a method for preparing the compound fertilizer by using phosphate rock flotation tailings. Background technique [0002] Tobacco is an important economic crop widely grown in our country. Tobacco leaves are the part that determines the economic value of tobacco plants, so the growth status of plants determines the yield and quality of tobacco. At present, planting relies on extensive application of chemical fertilizers and pesticides to maintain high yields of tobacco leaves, which has caused serious damage to the soil and environment of tobacco leaf planting, causing unbalanced enrichment and depletion of soil nutrients in some areas where tobacco leaves have been planted for a long time. The imbalance of nutrient supply leads to a significan...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
CPCC05B7/00C05G3/80C05B11/06C05C1/00C05C3/00C05C5/02C05C9/00C05D9/02C05F11/02
Inventor 李兵江涛
Owner 中化重庆涪陵化工有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com