Issues regarding the definition of the upstream and downstream boundaries for nitration, chlorination, fluorination, diazotization, and peroxidation processes
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According to the requirements for automation upgrades (see Attachments 1 and 2 in detail), full automation is required across the entire process chain involving nitration, chlorination, fluorination, diazotization, and peroxidation processes. Could you please clarify where exactly the boundaries of this upstream and downstream scope lie? For example: The production of a certain product involves 7 steps, with diazotization (any of the above steps) taking place in step 4 or step 5 (with various intermediate syntheses occurring prior to that). So this full-process automation transformation covers steps 1 to 7, that is, the entire product line ； Or only the first and last step related to the key processes under strict supervision are needed ； If the entire product line needs to be produced, is it possible to set up a separate workshop for that specific step and carry out automation only within that workshop? ； If a workshop handles two product lines (an existing workshop), and one of those products is to be fully automated, how should the situation be handled for the other product line (which does not involve those 5 manufacturing processes)? After all, it is necessary to minimize the number of workers. There have been quite a few concerns regarding this issue recently~~~
It is obvious that the materials after nitration and diazotization are all explosive substances, as clearly stated in the documents; everything needs to be automated. The only point of ambiguity lies in raw material processing and transportation – whether it refers to the direct feeding into the reaction unit or to processes that occur earlier in the process chain
Nitration and diazotization produce by-products that are explosive; therefore, automation for the subsequent processing steps is essential (there are also relatively few issues related to the automation of these two processes). In many cases, some of the reaction raw materials are synthesized in the previous step or several previous steps; such raw materials are themselves produced through reactions (non-hazardous processes). How far back does one need to trace things?
Chlorination and nitration have been carried out; only automated modifications before and after the main reaction are required, primarily for emergency shutdown functionality
I think it’s sufficient to get the main reaction unit in order, after all, the greatest danger comes from the main reaction unit