Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Occupations | Controls agitator tank to wash (mix) benzol, benzene, toluene, and xylene with sulfuric acid and caustic soda to remove impurities: Turns valves and starts pumps to charge agitator vessel with specified amount of benzol or derivatives. Drains measured quantity of acid into vessel and starts agitator to mix contents for specified time. Stops agitator to allow acid and sludge to settle. Draws sample of washed product for laboratory colorimetry test to determine need for further washing. Opens valve, using wrench, to drain excess acid and sludge, adds caustic soda solution to neutralize remaining acid, and measures alkalinity, using standard titration test. Adds water, agitates mixture to wash out traces of caustic, and drains off water after contents have settled. Pumps washed benzol or derivatives into storage tank. Turns valves to admit steam to sludge kettle, solidifying sludge. Lifts kettle cover, using chain hoist, and removes sludge from kettle. May distill washed benzol in batch still [BATCH-STILL OPERATOR (chemical) I]. May remove impurities from crude ethylbenzene by adding lime and water and agitating mixture. (references) |
Source: compiled by the editor from various references; see credits. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)42 45 4E 5A 45 4E 45 2D 57 41 53 48 45 52 4F 50 45 52 41 54 4F 52 |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01000010 01000101 01001110 01011010 01000101 01001110 01000101 00101101 01010111 01000001 01010011 01001000 01000101 01010010 00100000 01001111 01010000 01000101 01010010 01000001 01010100 01001111 01010010 |
HTML Code (1990) (references)B E N Z E N E - W A S H E R   O P E R A T O R |
ISO 10646 (1991-1993) (references)0042 0045 004E 005A 0045 004E 0045 002D 0057 0041 0053 0048 0045 0052 004F 0050 0045 0052 0041 0054 004F 0052 |
Encryption (beginner's substitution cypher): (references)363948603948391557355342395224950395235544952 |
| 1. Orthography 2. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
