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Design and Simulation of a Green Chromate Compound Production Process
Author(s) -
Song Jing,
Qu JingKui,
Liu JingCong,
Ma Fei,
Qi Tao
Publication year - 2014
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400123
Subject(s) - chromate conversion coating , chromite , process (computing) , process engineering , process simulation , production (economics) , simulation software , evaporation , energy consumption , chemistry , engineering , software , materials science , metallurgy , computer science , thermodynamics , chromium , physics , economics , macroeconomics , programming language , operating system , electrical engineering
A green process for the production of chromate compounds from chromite ore was simulated using process simulation software. Firstly, the phase equilibria of the KOH‐K 2 CrO 4 ‐H 2 O system were investigated to determine the feasible operating conditions for the separation of K 2 CrO 4 from the KOH alkaline solution. The green process model of chromate production was developed and three cases with different concentrations of alkali solution were simulated based on several assumptions. The mass and energy balances in the three cases were simulated, showing that the energy consumption of the evaporation unit is the largest in the whole process. The simulation results provide important information for the implementation of this green chromate production process.