Welcome to the Industrial Automation website!

NameDescriptionContent
HONG  KANG
E-mail  
Password  
  
Forgot password?
  Register
当前位置:

What's the difference between chemicals and chemistry?

来源: | 作者:佚名 | 发布时间 :2023-11-24 | 72 次浏览: | Share:

Many people, the difference between chemical industry and chemistry is simply understood as industrialization and laboratory, large and small, precision and rough, in fact, did not grasp the core. As a discipline classification, chemistry is the upstream discipline of chemical industry, in short, the focus of chemical industry people is not how the reaction is carried out, what the reaction mechanism is. This is what the chemists do, and the chemists tell us what their findings are, what temperatures, what pressures, what forms of contact this reaction is going to be at, and how our job is to make this happen, to guarantee the conditions that the chemists tell us about. For example, a synthetic experimental chemistry major has been realized in the laboratory, maybe he wrote the word agitation in the experimental record, then the next is the field of chemical industry, this agitation is a large research direction of chemical industry, what is the agitation mode? Newtonian fluids or non-Newtonian fluids? Does the viscosity of the reaction system affect the efficiency of the motor? Does the heat from stirring affect the reaction? To what extent? Is there a dead zone? Further, to the pilot stage, it was found that the yield was far from the theoretical yield provided by the chemistry major, what is the problem? 

Is it possible that the mixing is not done properly? If so, how do I fix it? Increase the mixing power? Redesign the paddle shape? Change the size of the reactor? The core of chemical industry is three transmission and one opposite, physical process, reaction engineering seems to have the word reaction, in fact, the research focus is still the part of the reaction that has nothing to do with the reaction itself, that is, the influence of mass and heat transfer on the reaction and the mass and heat transfer phenomenon caused by the reaction. The largest professional course of chemical industry is called chemical principle, what is it about? Two parts, some universities also divide these two parts into two courses one is fluid mechanics and the other is unit operations. Whether it is the equation of fluid mechanics, or drying, absorption, distillation, extraction, etc., are physical processes. To sum up, I think the position of the dean of our department is very accurate, chemical industry is the part of the chemical industry that has nothing to do with chemistry, we focus on fluid, heat and kinetic energy, we do not care about the reaction itself, chemical industry studies reaction, is also to study the impact of reaction on fluid, heat and kinetic energy. As for the reaction mechanism, the orbitals, the energy levels, the Schrodinger, this is a problem that the chemistry profession should solve. Of course, here is an objective description of the characteristics of the subject, not a subjective understanding of the debate. If you ask about employment and salary, I think it's about the same. You'll be disappointed anyway. Although I have always believed that the biggest reason for the difference in employment and salary is the difference in people rather than the difference in majors. Add a point: the friends of the reaction project should be the same professional, let's not grab a detail debate. First of all, I focus on logic. As a discipline, chemical engineering and chemistry are upstream and downstream, and chemistry is the upstream discipline of chemical engineering.


I think the original intention of the designer can be seen from the content of the discipline, which is the fundamental difference. Second, if I have to talk about reaction engineering, I don't think reaction engineering is chemistry. If you can't figure out why reaction engineering is not chemistry, please don't drill what chemistry is, please think about what chemistry is. Open the four chemistry textbook catalogue and the reaction engineering catalogue to see how much difference there is and what differences there are in focus. Finally, let's talk about a philosophical problem, students of science and engineering, to learn the principles of Marxism well, the theory of contradiction, the view of connection and the view of development must be able to use ah. Chemistry and chemical engineering are upstream and downstream disciplines, which is the point of connection. The chemical industry is the part of the chemical industry that has nothing to do with chemistry. The current subject classification is done decades ago, with the development of technology, chemistry, chemical materials, metallurgy, polymers and even biology and other related disciplines cross more and more, the line is more and more unclear, the subject classification has many places are not applicable, this is the development of the point of view. On the basis of the above points of view, people who study chemical industry still need to understand chemical knowledge, and people who study chemistry can not absolutely break away from the support of chemical industry, which is the opposition and unity between things.

  • ABB 3HAC5498-1 High-Performance Control Module
  • ABB 3HAC5518-1 Industrial Control Module
  • ABB 3HAC5497-1 Industrial Control Module
  • ABB 3HAC7344-1 Mains line filter unit
  • ABB 3HAC7681-1 Process Interface Module
  • ABB 3HAC6428-1/04 high-performance control module
  • ABB 3HAC6157-1 Floppy sign/supply cable
  • ABB 3HAC10847-1 Ethernet on front,Harness
  • ABB 3HAC5566-1 Industrial Communication Bus Cable
  • ABB 3HAC9710-1 Heat exchanger unit
  • ABB IMFECI2 Industrial Control Module
  • ABB IMDS014 Digital Slave Output Module
  • ABB INIT03 Control Module
  • ABB 3HAC031683-004 Cable Teach Pendant 30m
  • ABB HAC319AEV1 High-Performance Control Module
  • ABB UFC092BE01 Binary input module
  • ABB DAPC100 3ASC25H203 Industrial Control Board
  • ABB 57160001-KX DSDO 131 Digital Output Unit
  • ABB 3HAC4776-1/1 Industrial Control Module
  • ABB DSTF610 terminal
  • ABB YB560100-EA S3 Industrial Control Module
  • ABB XO16N1-B20 XO16N1-C3.0 High-Performance Industrial Control Module
  • ABB TU804-1 Programmable Logic Controller (PLC) Module
  • ABB TU515 I/O terminal unit
  • ABB TK516 Connection Cable with Contacts
  • ABB SPCJ4D34-AA Industrial Ethernet I/O System Module
  • ABB SPAD346C Integrated Differential Relay
  • ABB 1SAM101904R0003 SK-11 Signal contact 1NO+1NC
  • ABB SE96920414 YPK112A Communication Module
  • ABB SC610 3BSE001552R1 Submodule Carrier
  • ABB SC513 PLC Analog Input Module
  • ABB SAFT110 Advanced Safety Termination Module
  • ABB RVC6-5A Control Module
  • ABB RB520 Linear Motion Controller Module
  • ABB R1.SW2/3 Industrial Control Module
  • ABB PU517 Controller Automation System
  • ABB PS130/6-75-P Industrial Control Module
  • ABB 3BSE008062R1 PM633 Processor Module
  • ABB L110-24-1 Industrial Control Module
  • ABB IMDSO14 Digital Slave Output Module
  • ABB DSU10 Control Module
  • ABB DSQC627 3HAC020466-001 Advanced Power Supply Module
  • ABB DSQC354 Industrial I/O Module
  • ABB DSQC352 High Performance Input/Output Module
  • ABB 37911-4-0338125 Control Module
  • ABB DSPC172 CPU Module
  • ABB DSBB175 Industrial PLC Expansion Module
  • ABB CR-M4LS Industrial Control Module
  • ABB CI626A 3BSE005029R1 Communication Interface Module
  • ABB BB510 (DC5256) Digital Control Module
  • ABB 61615-0-1200000 High-Precision Industrial Controller
  • ABB 3HNE 00313-1 TILLV.0317 Machine No. 64-25653
  • ABB 3HNA000512-001 Control Module
  • ABB 3HAC025466-001 Industrial Control Module
  • ABB 3HAB8101-8/08Y Industrial Control Module
  • ABB 3BHB003689 Multifunction Controller Module
  • ABB PXBHE65 206-00212 power module
  • ZUNKU 6203-2RS Deep Groove Ball Bearing
  • ZUNKU 6201-2RS Deep Groove Ball Bearing
  • ZYCOM IGLACS01281 Control Module
  • Zygo 8010-0105-02 ZMI-501 Displacement Measurement Interferometer
  • Zygo 1115-801-346 laser head cable
  • ZYGO HSSDC2 TO HSSDC2 CABLE 1115-800-055
  • ZYGO HSSDC TO HSSDC2 CABLE 1115-800-056
  • ZYGO ZMI 4104C Measurement Electronics Board
  • ZYGO ZMI-2002 8020-0211 Measurement Board
  • ZYGO 7702 8070-0102-35 Laser Head
  • ZYGO ZMI 7702 8070-0102-01X Laser Head
  • ZYGO ZMI-4004 4-Axis VME64x Measurement Board
  • ZYGO PC200 CS1115-801-346 Laser interferometer cable
  • ZYGO 8010-0105-01 ZMI Power Supply
  • ZYGO ZMI-2002 8020-0211-1-J Laser system measurement board card
  • ABB 35AE92 control card
  • ABB 200900-004 I/O Adapter PLC Board
  • Siemens 6ES7193-4CA40-0AA0 ET 200S Electronic Module
  • Siemens 6AV2124-2DC01-0AX0 Comfort Panel
  • Siemens 6ES7421-7DH00-0AB0 Digital Input Module
  • Siemens 6ES7350-2AH01-0AE0 Counter Module
  • Siemens 6ES7231-0HC22-0XA0 Analog Input Expansion Module
  • Siemens ET200SP 6ES7193-6PA00-0AA0 server module
  • Siemens 6ES7193-4JA00-0AA0 Terminal Module
  • Siemens 6AG1204-2BB10-4AA3 Ethernet Switch
  • SIEMENS 6GK1105-2AA10 SIMATIC NET series optical switching module (OSM ITP62)
  • Schneider Modicon Quantum 140CPU65260 Unity Processor
  • Schneider Modicon Quantum 140ACO02000 Analog Output Module
  • Schneider Modicon Quantum 140CPS11420 power module
  • Allen-Bradley 1747-CP3 SLC ™ Series of programming cables
  • Kollmorgen S33GNNA-RNNM-00 - Brushless Servo Motor
  • Kollmorgen 6sm56-s3000-g-s3-1325 - Servo Motor
  • Kollmorgen AKM52K-CCCN2-00 - Servo Motor
  • Kollmorgen PSR3-230/75-21-202 - Power Supply
  • Kollmorgen akm24d-anc2r-00 - Servo Motor
  • Kollmorgen AKM22E-ANCNR-00 - Servo Motor
  • Kollmorgen S60300-550 - Servo Drive
  • Kollmorgen B-204-B-21 - Servomotor
  • Kollmorgen AKM21E-BNBN1-00 - Servo Motor
  • Kollmorgen TT2953-1010-B - DC Servo Motor
  • Kollmorgen pa8500 - Servo Power Supply
  • Kollmorgen BDS4A-210J-0001-207C2 - Servo Drive
  • Kollmorgen TTRB1-4234-3064-AA - DC Servo Motor
  • Kollmorgen MH-827-A-43 - Servo Motor
  • Kollmorgen AKM24D-ACBNR-OO - Servo Motor
  • Kollmorgen 00-01207-002 - Servo Disk DC Motor
  • Kollmorgen AKM21C-ANBNAB-00 - Servo Motor
  • Kollmorgen PSR3-208/50-01-003 - Power Supply
  • Kollmorgen 6SM56-S3000 - Servo Motor
  • Kollmorgen DBL3H00130-B3M-000-S40 - Servo Motor
  • Kollmorgen 6SN37L-4000 - Servo Motor
  • Kollmorgen AKM65K-ACCNR-00 - Servo motor
  • Kollmorgen 6SM56-L3000-G - Servo Motor
  • Kollmorgen AKMH43H-CCCNRE5K - Servo Motor
  • Kollmorgen PSR4/52858300 - Power Supply
  • Kollmorgen KBM-79H03-E03 - Direct Drive Rotary Motor
  • Kollmorgen AKM33E-ANCNDA00 - Servo Motor
  • Kollmorgen U9M4/9FA4T/M23 - ServoDisc DC Motor
  • Kollmorgen AKM13C-ANCNR-00 - Servo Motor
  • Kollmorgen AKM43L-ACD2CA00 - Servo Motor
  • Kollmorgen AKM54K-CCCN2-00 - Servo Motor
  • Kollmorgen M-605-B-B1-B3 - Servo Motor
  • Kollmorgen AKD-P00606-NBAN-0000 - Rotary Drive
  • Kollmorgen 6SM-37M-6.000 - Servo Motor
  • Kollmorgen A.F.031.5 - Sercos Interface Board
  • Kollmorgen 918974 5054 - Servo PWM
  • Kollmorgen U12M4 - ServoDisc DC Motor
  • Kollmorgen AKD-B00606-NBAN-0000 - Servo Drive
  • Kollmorgen MV65WKS-CE310/22PB - Servo Drive
  • Kollmorgen 65WKS-CE310/22PB - Servo Drive
  • Kollmorgen EM10-27 - Module