It is also very important to use new equipment to separate impurities and improve product quality.

The focus of production technologies for the use of new technologies and new equipment for the production of pesticide intermediates is to search for chemical reactions that are competitive and environmentally clean and to use advanced equipment. If the catalytic hydrogenation can be completely replaced with iron powder, sulfuric alkali and other reduction, the technical process is short, high yield, good quality, less waste, is conducive to large-scale production, especially for aromatic nitro compounds; phase transfer catalysis The reaction speed can be increased, the reaction temperature can be lowered, and some difficult reactions can be made possible, and the proportion and selectivity of isomerization products can be changed. As a highly efficient biocatalyst, the enzyme can be used as a highly efficient catalyst under very mild conditions. For example, a lipase or a hydrolase can promote the hydrolysis of water or the hydrolysis of eye into guanamine. The oxidase can introduce aromatic compounds into the corresponding phenols at room temperature, and the enzymes can also separate stereoisomers.

The German company Herschite pioneered the replacement of aromatic nitro groups with chlorine atoms, such as the use of meta-dinitrobenzene in the presence of a catalyst, high-temperature chlorine generated meta-dichlorobenzene. In addition, it is also very important to use new equipment to separate impurities and improve product quality. For example, m-phenoxybenzaldehyde produced by Jiangsu Chemical Pesticide Group Co., Ltd. has been plagued by quality of less than 98%, and advanced computer control has been adopted. After the membrane separation equipment, the content of m-phenoxybenzaldehyde reached more than 9%, and it could be completely exported instead of imported.

It is also very important to continuously develop new processes and strengthen engineering research in the technological transformation of old processes in the production of pesticide intermediates. The first is to study the replacement of old processes with new ones. We must carefully conduct the comparison in the case of feasibility studies. The second is that without changing the route of raw materials, the use of new catalysts or new technologies in a single unit reaction can improve the quality and yield of products, reduce costs, and reduce equipment and waste emissions, especially for general-purpose intermediates. Large-scale production, large-scale production, and engineering research are all the more important, such as the improvement of mass transfer, heat transfer separation, etc., reducing material consumption, energy consumption, and improving quality. No matter whether it is the development of new processes or the reinforcement of engineering research, there are technicians. Tracking and research, if there is a scientific research unit backing it, is even more beneficial.

Description for RG59 with Power Cable:

Mainly used for the distribution and access of electronic communication equipment, RF transmitter

unit of communication system, building cabling and CATV; the most striking features are broadband

and high speed; currently, also widely used in the multimedia transmission field; conforms to RG59.

Features for RG59 with Power Cable :

 

Specificaitons

Physical dimensions

 

 

component

Standard-shield

Tri-shield

Quad-shield

inchs

mm

inchs

mm

inchs

mm

Nominal center conductor diameter

0.032

0.81

0.032

0.81

0.032

0.81

Nominal diameter over dielectric

0.144

3.66

0.144

3.66

0.14

3.66

Nominal diameter over first shield

0.151

3.84

0.151

3.84

0.151

3.84

Nominal diameter over jacket

0.24

6.10

0.24

6.10

0.265

6.73

Nominal jacket wall thickness

0.03

0.76

0.032

0.81

0.034

0.86

Nominal diameter of

steel messenger

0.051(single)

1.3

0.051(single)

1.3

0.051(single)

1.3

0.072(dual)

1.83

0.072(dual)

1.83

0.072(dual)

1.83

 

 

 

 

 

 

 

 

 

 

 

 

 

Electrial Characteristics

Nominal impedance

75ohms

Nominal Velocity of propagation

85%

 

 

 

Attenuation(20°C)

Frequency(MHz)

Maximum(dB/100ft)

Maximum(dB/100m)

55

2.05

6.73

211

3.80

12.47

350

4.80

15.75

450

5.40

17.72

550

5.95

19.52

750

6.97

22.87

865

7.52

24.67

1000

8.12

26.64

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Coaxial Cable

Coaxial Cable,CCTV Camera Coaxial Cable,RF Coaxial Cable,RG6 Coaxial Cable

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