Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of method of acetochlor crude oil purification

A technology for acetochlor and crude oil, applied in the field of acetochlor crude oil purification, can solve the problems of high cost, complexity and difficulty in operation, and achieve the effects of large output, low cost and short production cycle

Active Publication Date: 2015-11-25
SHANDONG VICOME GREENLAND CHEMICAL CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because the process of producing standard products is more complicated, the operation is more difficult, it is difficult to purify, and the cost is high, so the price of standard products is more expensive
For a long time, pesticide manufacturers have mainly purchased standard products, but with the continuous expansion of production scale, the demand for standard products is also increasing, and at the same time it is becoming more and more difficult to buy, especially acetochlor

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Get 320.9g of acetochlor crude oil with a known content of 93.5%, 42g of xylene, 48g of cosolvent LE-50Y and 210g of methanol and mix uniformly to obtain a mixture. The mixture is put into a jar and sealed, and the jar is kept at a constant temperature. After 4 days, the constant temperature is -20°C; after discarding the upper liquid in the jar, take out the crystals at the bottom of the jar and place it in a clean round-bottom flask, heat the round-bottom flask to 110°C and keep it for 2 hours to evaporate the solvent , then sealed and cooled naturally, and after standing for 2 days, high-purity acetochlor crude oil was obtained.

[0018] The obtained high-purity acetochlor crude oil is determined to be 99.0% by the purchased acetochlor standard substance.

Embodiment 2

[0020] Get 318.8g of acetochlor crude oil with a known content of 94.1%, 100g of xylene, 50g of cosolvent LE-50Y and 400g of methanol and mix uniformly to obtain a mixture. The mixture is put into a jar and sealed, and the jar is kept at a constant temperature. After standing for 5 days, the constant temperature is -10°C; after discarding the upper liquid in the jar, take out the crystals at the bottom of the jar and place it in a clean round bottom flask, heat the round bottom flask to 100°C for 3 hours to evaporate the solvent , then sealed and cooled naturally, and after standing for 1 day, high-purity acetochlor crude oil was obtained.

[0021] The obtained high-purity acetochlor crude oil was determined to be 98.2% by the purchased acetochlor standard substance.

Embodiment 3

[0023] Take 373.1g of crude oil with a known content of 93.8% acetochlor, 30g of xylene, 50g of cosolvent LE-50Y and 125g of methanol and mix uniformly to obtain a mixture, put the mixture into a jar and seal it, and keep the jar at a constant temperature for 3 days , the constant temperature is -35°C; after discarding the upper liquid in the jar, take out the crystals at the bottom of the jar and place it in a clean round-bottomed flask, heat the round-bottomed flask to 80°C for 5 hours to evaporate the solvent, and then seal it After natural cooling and standing for 3 days, high-purity acetochlor crude oil was obtained.

[0024] The obtained high-purity acetochlor crude oil was determined to be 98.8% by the purchased acetochlor standard substance.

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 method for purifying acetochlor crude oil. The method comprises the following steps of mixing acetochlor, dimethylbenzene, a cosolvent LE-50Y and methanol according to the mass ratio of (30-70):(6-10):(5-10):(25-40), wherein the acetochlor refers to net content of the acetochlor in the acetochlor crude oil; placing the mixture in a wide-mouth bottle for sealing, and leaving the wide-mouth bottle to stand at the constant temperature ranging from -35DEG C to -10 DEG C for 3-5 days; removing liquid on the upper layer in the wide-mouth bottle, then taking out a crystal at the bottom of the wide-mouth bottle, placing the crystal in a clean round-bottle flask, heating the round-bottom flask to 80-110 DEG C, keeping the temperature for 2-5 hours and obtaining the solvent by evaporating; sealing, naturally cooling and leaving the round-bottom flask to stand for 1-3 days to obtain the high-purity acetochlor crude oil. Compared with the prior art, the method disclosed by the invention has the benefits that compared with the prior art, the method provided by the invention has the advantages of short production period, high yield and low cost when the high-purity acetochlor crude oil with the same content is prepared.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a method for purifying acetochlor crude oil. Background technique [0002] Because the process of producing standard products is relatively complicated, the operation is difficult, it is difficult to purify, and the cost is high, so the price of standard products is relatively expensive. For a long time, pesticide manufacturers have mainly purchased standard products, but with the continuous expansion of production scale, the demand for standard products is also increasing, and it is also becoming more and more difficult to buy, especially acetochlor. The quality inspection departments of pesticide production enterprises usually use working standard samples when analyzing samples. Before the present invention, acetochlor working standard samples for high-purity analysis were made through chromatographic columns, which was slow and produced less , The production cycle i...

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): C07C233/18C07C231/24
Inventor 周玉良来庆利蔡黎克杨新东申波邓之亮
Owner SHANDONG VICOME GREENLAND CHEMICAL CO LTD