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Difficulty: MediumHeavy Chemicals and Fine Chemicals

Complete the following comparison of industrial chemical manufacturing methods by filling in the missing operational process type.

Answer:In industrial chemistry, heavy chemicals such as tetraoxosulfate(VI) acid are synthesized in high tonnage using continuous operations, whereas fine chemicals such as pharmaceuticals and analytical reagents are produced in small, high-purity quantities using 【batch】 processes.

Answer

The correct term to complete the statement is 'batch'.
Fine chemicals (such as drugs, dyes, and specialized reagents) require strict purity standards and are synthesized in relatively small quantities using batch processes. In contrast, heavy chemicals (such as sulfuric acid, sodium hydroxide, and ammonia) are produced in bulk via continuous processes.

Step-by-Step Solution

1
Analyze the operational differences between heavy chemical and fine chemical manufacturing.
Heavy chemicals are produced continuously on a large scale due to high global demand, whereas fine chemicals are high-value substances produced in limited quantities.
Fine chemical production requires precise purity controls and flexibility in manufacturing.
2
Identify the process mode characteristic of fine chemical production.
Manufacturing in discrete, specific production runs or lots is defined as a batch process.
Batch processing allows for thorough quality control, specialized reaction conditions, and equipment cleaning between synthesis cycles.

Key Concept

Operational process distinction between continuous processing (heavy chemicals) and batch processing (fine chemicals)
Estimated Time:1m 0s
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Topics

Heavy Chemicals and Fine Chemicals

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