CN106242999A - The formula of a kind of synthetics and processing technology - Google Patents

Abstract

The present invention provides one one kinds of Herbicidal compositions and refinement method, its herbicide chemistry entitled N (to chlorobenzene) N', N' dimethyl urea (MON), molecular formula is C9H11ClN2O, molecular weight is 198.65 g/mol, it is characterized in that: mass fraction is more than or equal to 98%, loss on drying is less than or equal to 0.1%, fusing point is 176 177 degrees Celsius, finished appearance: white solid, finished product abnormal smells from the patient: without obvious abnormal smells from the patient, its each Components Name weight proportion is as follows: toluene 1300KG, chlorophenyl isocyanate 250KG, dimethylamine 75.6KG, agriculturally for soil treatment, prevent and kill off Fructus Vitis viniferae, Caulis Sacchari sinensis, unifacial leaf in Cotton Gossypii and other field crops and broadleaf weed, to Herba Digitariae, the effectively regulation such as amur foxtail.

Description

The formula of a kind of synthetics and processing technology

Technical field

The present invention relates to a kind of synthetics that can be used for anhydride, aldehyde, ketone, isocyanates, a kind of synthetics Formula and processing technology.

Background technology

Along with a large amount of uses of herbicide, farming is to the effective ingredient mass fraction of herbicide products, harmful quality Mark, effective ingredient suspensibility, pH range, moisture, wetting time, stability of emulsion, dilution stability etc. have the highest Requirement, substandard product loses herbicide effect, to people and animals, phytotoxicity greatly, owing to its residual period is long, can make lower stubble The raw impact of produce, is therefore badly in need of a kind of new technique and changes the unstability that original synthetics brings to herbicide synthesis.

Summary of the invention

The formula of a kind of synthetics of the present invention and processing technology, its synthetics agent chemistry entitled N, N'-bis-(2,6-diisopropyls Base phenyl) carbodiimide (C17), molecular formula is C25H34N2, and molecular weight is 362.56g/mol, it is characterised in that: quality is divided Number is more than or equal to 98%, and loss on drying is less than or equal to 0.1%, and NCN content is that 11% fusing point is 48-50 DEG C, and boiling point is 185 DEG C, becomes Product outward appearance: white solid, its each Components Name weight proportion is as follows:

Diisopropyl isocyanates--1000KG

Catalyst--2KG

Preferably, the purity of described diisopropyl isocyanates is 99%.

Preparation method is: above-mentioned formulation material is put into rustless steel container and synthesizes, crystallize, be centrifuged, be dried, shape.

Chemical equation:

2,6-diisopropyl benzene based isocyanate N, N'-bis-(2,6-diisopropyl phenyl) carbodiimide

C₆H₁₃N 203.28 C₂₅H₃₄N₂ 362.56

The operation simple, easy of the technique of the present invention, reaction yield height, and environmental pollution is few, is a green clean synthesis road Line, has bigger implementary value and economic results in society.

It is embodied as

Embodiment 1

The formula of a kind of synthetics of the present invention and processing technology, its synthetics agent chemistry entitled N, N'-bis-(2,6-diisopropyl benzenes Base) carbodiimide (C17), molecular formula is C25H34N2, and molecular weight is 362.56g/mol, it is characterised in that: mass fraction is big In equal to 98%, loss on drying is less than or equal to 0.1%, and NCN content is that 11% fusing point is 48-50 DEG C, and boiling point is 185 DEG C, outside finished product Seeing: white solid, its each Components Name weight proportion is as follows:

Diisopropyl isocyanates--1000KG

Catalyst--2KG

The purity of described diisopropyl isocyanates is 99%, is put into by diisopropyl isocyanates 1000KG and catalyst 2KG The rustless steel synthesis reactor of 6000 liters synthesizes, rushes vacuum pump by the water of 0.8 cube afterwards and be passed to the crystallization kettle of 6000 liters, Entering after crystallization work and enter centrifugal work in the automatic centrifuge that PCL controls, the cylinder entering 2 cubes after centrifugal work is done Dry device is dried operation, and undesired impurities collects the mother solution reception tank to 1 cube, eventually forms the N, N'-of 95% dry purity Two (2,6-diisopropyl phenyl) carbodiimide (C17).

Embodiment 2

The formula of a kind of synthetics of the present invention and processing technology, its synthetics agent chemistry entitled N, N'-bis-(2,6-diisopropyl benzenes Base) carbodiimide (C17), molecular formula is C25H34N2, and molecular weight is 362.56g/mol, it is characterised in that: mass fraction is big In equal to 98%, loss on drying is less than or equal to 0.1%, and NCN content is that 11% fusing point is 48-50 DEG C, and boiling point is 185 DEG C, outside finished product Seeing: white solid, its each Components Name weight proportion is as follows:

Diisopropyl isocyanates--500KG

Catalyst--1KG

The purity of described diisopropyl isocyanates is 99%, is put into by diisopropyl isocyanates 1000KG and catalyst 2KG The rustless steel synthesis reactor of 6000 liters synthesizes, rushes vacuum pump by the water of 0.8 cube afterwards and be passed to the crystallization kettle of 6000 liters, Entering after crystallization work and enter centrifugal work in the automatic centrifuge that PCL controls, the cylinder entering 2 cubes after centrifugal work is done Dry device is dried operation, and undesired impurities collects the mother solution reception tank to 1 cube, eventually forms the N, N'-of 50% dry purity Two (2,6-diisopropyl phenyl) carbodiimide (C17).

Claims (2)

1. the formula of synthetics and a processing technology, its synthetics chemistry entitled N, N'-bis-(2,6-diisopropyl phenyl) carbon Diimine (C17), molecular formula is C25H34N2, and molecular weight is 362.56g/mol, it is characterised in that: mass fraction is more than In 98%, loss on drying is less than or equal to 0.1%, and NCN content is that 11% fusing point is 48-50 DEG C, and boiling point is 185 DEG C, finished appearance: White solid, its each Components Name weight proportion is as follows:

Diisopropyl isocyanates--1000KG

Catalyst--2KG

Preparation method is: above-mentioned formulation material is put into rustless steel container and synthesizes, crystallize, be centrifuged, be dried, shape.

2. according to claims 1, the formula of a kind of synthetics and processing technology, it is characterised in that: described diisopropyl isocyanide The purity of acid esters is 99%.