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

Slow-release double-effect pesticide and preparation method thereof

A slow-release, pesticide technology, applied in botany equipment and methods, chemicals for biological control, herbicides and algicides, etc., can solve the problems of blocked organic matter transportation, plant death, loss of ability to absorb nutrients, etc. question

Active Publication Date: 2021-06-22
ZIBO VOCATIONAL INST
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sodium dimethyltetrachloride is a phenoxycarboxylic acid selective herbicide with strong systemic conductivity. The drug passes through the stratum corneum and cytoplasmic membrane, and finally conducts to various parts, and has different effects on nucleic acid and protein synthesis in different parts. The effect is to inhibit nucleic acid metabolism and protein synthesis at the top of the plant, so that the growth point stops growing, and the young leaves cannot be stretched until photosynthesis cannot be carried out normally; Increased synthesis promotes abnormal cell division, enlarged root tips, loss of ability to absorb nutrients, resulting in twisted and deformed stems, blockage of sieve tubes, destruction of phloem, and obstruction of organic matter transportation, thereby destroying the normal viability of plants and eventually leading to plant death
At present, there are no published literature and patents on the co-intercalation of hydrotalcite with dimethyltetrachlorate and chlorpyrifos

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
  • Slow-release double-effect pesticide and preparation method thereof
  • Slow-release double-effect pesticide and preparation method thereof
  • Slow-release double-effect pesticide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Weigh 17.8g Zn(NO 3 ) 2 ﹒ 6H 2 O, 11.3g Al(NO 3 ) 3 ﹒ 9H 2 O dissolved in 100ml to remove CO 2 Mixed salt solution was prepared with water, another 5.6g NaOH was dissolved in 50ml to remove CO 2 Prepare alkaline solution in water, N at room temperature 2 Protection Use the double-drop method to add the salt solution and the alkali solution into the four-neck flask, and stir vigorously. Adjust the pH value to 7 with 0.1mol / L NaOH solution. The resulting slurry was crystallized at 60°C for 72 hours, and the product was placed in a centrifuge, centrifuged at a speed of 2500 rpm for 5 minutes, and then used to remove CO 2 Wash with water until neutral; take out the sample and dry it at 50°C for 48 hours for characterization, and obtain the hydrotalcite precursor ZnAl-NO 3 -LDHs, whose Zn 2+ / Al 3+ =2.

[0040] (2) 8.6g sodium tetrachloride [CH 3 (Cl)C 6 h 3 OCH 2 COONa] solid dissolved in 200mL to remove CO 2 After the deionized water was transferred ...

Embodiment 2

[0045] (1) Weigh 15.4g Mg(NO 3 ) 2 ﹒ 6H 2 O, 11.3g Al(NO 3 ) 3 ﹒ 9H 2 O dissolved in 100ml to remove CO 2 Mixed salt solution was prepared with water, another 2.0g NaOH was dissolved in 50ml to remove CO 2 Prepare alkaline solution in water, N at room temperature 2 The salt solution and the alkali solution were added into the four-neck flask by the double-drop method, and the pH value was adjusted to 10 with 5mol / L NaOH solution after the dripping. Centrifuge at rpm for 3 min, then remove CO 2 Wash with water until neutral; take out a small amount of samples and dry them at 90°C for 20 hours for characterization to obtain the hydrotalcite precursor MgAl-NO 3 -LDHs, its Mg 2+ / Al 3+ =2.

[0046] (2) 8.6g sodium tetrachloride [CH 3 (Cl)C 6 h 3 OCH 2 COONa] solid dissolved in 200mL to remove CO 2 After the deionized water was transferred to the four-necked bottle, then add the 10g hydrotalcite precursor MgAl-NO 3 -LDHs,N 2 Protected and heated to 50°C, reacted...

Embodiment 3

[0051] (1) Weigh 17.4g Ni(NO 3 ) 2 ﹒ 6H 2 O, 11.3g Al(NO 3 ) 3 ﹒ 9H 2 O dissolved in 100ml to remove CO 2 Mixed salt solution was prepared with water, another 5.6g NaOH was dissolved in 50ml to remove CO 2 Prepare alkaline solution in water, N at room temperature 2 Protection Use the double-drop method to add the salt solution and the alkali solution into the four-neck flask, and stir vigorously. Adjust the pH value to 7 with 3.0mol / L NaOH solution. The resulting slurry was crystallized at 80°C for 30 h, and the product was placed in a centrifuge, centrifuged at a speed of 3000 rpm for 4 min, and then used to remove CO 2 Wash with water until neutral; take out the sample and dry it at 50°C for 48 hours for characterization, and obtain the hydrotalcite precursor NiAl-NO 3 -LDHs, whose Ni 2+ / Al 3+ =2.

[0052] (2) 8.6g sodium tetrachloride [CH 3 (Cl)C 6 h 3 OCH 2 COONa] solid dissolved in 200mL to remove CO 2 The deionized water was transferred to a four-neck...

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 relates to the field of organic-inorganic composite materials, in particular to a slow-release double-effect pesticide and a preparation method thereof. The hydrotalcite precursor is intercalated with dimethyltetrachlorate, and then chlorpyrifos is intercalated with the hydrotalcite precursor, and finally put into a mixed solution containing hydrogen peroxide, n-propanol and water for treatment to obtain a slow-release double-effect pesticide; chemical formula For: [(M 2+ ) 1‑x (M 3+ ) x (OH) 2 ] x+ (MCPA ‑ ) x (CPF) y mH 2 O, where x=0.25‑0.33, y=0.08‑0.10, m=3‑6, m is the number of interlayer crystal water molecules, M 2+ is a divalent metal ion, M 3+ For trivalent metal ions, MCPA ‑ is dimethyltetrachlorate, and CPF is chlorpyrifos. The slow-release double-effect pesticide of the invention has a stable intercalation structure, can release dimethyltetrachlorate and chlorpyrifos for a long time, and has a slow-release effect. Its preparation method is easy to realize.

Description

technical field [0001] The invention relates to the field of organic-inorganic composite materials, in particular to a slow-release double-effect pesticide and a preparation method thereof. Background technique [0002] Pesticides refer to chemical agents used in agriculture and forestry to prevent and control plant diseases and insect pests and regulate plant growth. There are many varieties of pesticides, which can be mainly divided into fungicides, herbicides, insecticides, and acaricides according to their uses. According to a study by the Food and Agriculture Organization of the United Nations, the global use of pesticides can reduce crop losses by about 30% every year. However, there are some problems in the use of traditional pesticides: (1) The actual utilization rate of pesticides is only about 25% due to environmental factors such as leaching, evaporation, and degradation, and unreasonable factors in human pesticide application. This will not only cause huge econ...

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 Patents(China)
IPC IPC(8): A01N25/08A01N25/22A01N39/04A01N57/16A01P13/00A01P7/04
CPCA01N25/08A01N25/22A01N39/04A01N57/16
Inventor 刘晓磊石志华秦丽莉
Owner ZIBO VOCATIONAL INST
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