In this paper we address the synthesis and design of chemical processes using Chemical Modular Process Simulators – that include state of the art modelsincluding discontinuous cost and sizing equations. Equations are divided into ‘implicit’ ones which include all the equations in the process simulators with an input-output black box structure, and other third party equations (i.e. sizing and co...

PNC has been promoting actinides partitioning studies as a part of advanced reprocessing system development efforts since 1990. Concurrently, the general TRUEX process was investigated as a reference partitioning tool. A concentrated high level liquid waste (llLLW) from LWR fuel reprocessing and a highly active raffinate (HAR) from FBR spent fuel PUREX experiments were nominated as target waste...

To fulfill the consumption demand of low-cost fuel ethanol, an advanced process for feedstock fermentation and bioethanol extraction was required. This study proposed a combined continuous solid-state distillation vapor permeation to extract ethanol from fermented sweet sorghum bagasse on basis technology. Ethanol undergoes only one phase transition separation in whole process, which drasticall...

Continuous manufacturing (CM) is an emerging technology which can improve pharmaceutical and reduce drug product quality issues. One challenge that needs to be addressed when adopting CM material traceability through the entire continuous process, constitutes one key aspect of control strategy. Residence time distribution (RTD) plays important role in as it characterizes spreading process. The ...

The performance of crushing equipment in mineral processing circuits is often critical to the generation of final product. A multiobjective evolutionary algorithm has been developed that allows the crusher internal geometry to be created and evaluated against multiple performance objectives. The multiple-objective approach is particularly important in mineral processing, as the optimum performa...

Circular economy implementations tend to decrease the human pressure on environment, but not all produce footprint reductions. That observation brings need for tools evaluation of recycling processes. Based Exergy Footprint concept, presented work formulates a procedure its application industrial chemical It illustrates in example cotton waste recycling. This includes entire process chain polye...

This project deals with the problem at the core of chemical processes, that of creating a structure for the reaction-separation-recycle system. New methods have been developed for the synthesis of such structures capable of screening a wide range of options and taking account of all of the trade-offs simultaneously. For the first time these methods are capable of fully taking into account the i...

To achieve the utilization of fine ilmenite (especially ?0.075 mm) produced in titanium-magnetite processing plant Panzhihua, a radial turbulent outer-cylinder magnetic separator (RTOCMS), was developed this study. After optimizing conditions rotation speed and water flow, an RTOCMS concentrate with TiO2 grade 22.84% recovery 66.93% obtained through one-stage roughing pre-concentration flowshee...

A flowsheet was developed to extract mixed Rare Earth Elements (REEs) from an aqueous solution generated by nitric acid leaching of apatite concentrate. In this study, Platanus orientalis (P. orientalis) leaf powder employed in the biosorption process purify pregnant leach solution. The sorption and desorption processes were investigated optimized. results demonstrated successful extraction REE...