This 4-page case history by Jeroen van den Berg of Bolz-Summix discusses how changing process conditions within a conical screw dryer eliminated granulation and minimized product segregation.05/02/2006
Manufacturing a pure product can be critically important to the next steps in the manufacture of a powder-based product. As a result the removal of residual moisture and solvents from the crystallization, filtration and drying steps can be crucial to producing a stable product.06/28/2006
Combustible dust explosions are a risk in many areas of a chemical plant. Are you in compliance? This white paper reviews the OSHA NEP for combustible dust, NFPA standards on explosion hazards, equipment used for explosion protection, and how to avoid the most common shortfalls to compliance.01/27/2014
The collection and testing of dust samples is a long-established practice used by many powder and bulk processors to make informed dust collection decisions. Dust testing protocols have not changed markedly in recent years. The importance of dust testing, however, has changed, and the implications are significant. While knowing your dust has always been good practice, it is rapidly becoming a necessity in today's regulatory climate.
This article will review two separate types of testing: (1) explosibility testing, which is used to determine whether a dust is combustible; and (2) bench testing, which pinpoints numerous physical properties of the dust. Both categories of tests are needed to determine the best dust collection system for your application and whether explosion venting equipment must be part of that system.03/16/2010
Over the past decade, cartridge-style dust collectors have overtaken baghouses as the preferred technology for dust collection in the chemical processing industry. Combining high efficiency filtration with compact size and reduced pressure drop, a high efficiency cartridge dust collector will in most cases be the system of choice.
Choosing the best cartridge collection system for a given application, however, involves research and attention to detail. This article will review four key areas of investigation. By reviewing these topics with a knowledgeable equipment supplier and knowing the right questions to ask, chemical manufacturing professionals will be better equipped to make informed dust collection decisions. Download this whitepaper now.06/21/2010
Combustible dust explosions are a risk in many areas, but one of the most common locations is the dust collector. This white paper reviews OSHA and NFPA standards, how to identify hazards, and the types of equipment used for explosion protection. It also examines common shortfalls to compliance.09/25/2012
When choosing filters for your cartridge dust collector, a Total Cost of Ownership (TCO) calculation allows you to make the most economical and sustainable choice. TCO is a step-by-step evaluation that explores energy use, maintenance and other factors to compare the real costs of operating a dust collector with different filters. This white paper explains how to perform TCO calculations to save money, time and energy.03/04/2011
This 11-page PDF whitepaper creates an outline for a standardized approach to the devices and items routinely provided to allow personnel to cross unit handling material handling conveyors.05/01/2005
Samsung General Chemicals manufactures various petrochemicals and polymers. The cooling step in their polypropylene line was a bottleneck that limited the amount of powder polypropylene that they could produce per year. The PP is used for a wide variety of applications ranging from packaging films to automotive components.07/21/2008
This application note from Delta Controls outlines selection and installation criteria for using admittance probes to monitor the level of powders, liquids and other materials. Dielectric constants of more than 200 materials are included.07/05/2005
This application note from Delta Controls outlines selection and installation criteria for using admittance probes to monitor the level of powders, liquids and other materials. Dielectric constants of more than 200 materials are included.01/05/2006
This nine-page whitepaper discusses the sources of powder flooding, the dangers it can pose to your equipment and the steps you can take to prevent it from happening.03/01/2005
This short two-page PDF whitepaper first discusses how an arch develops within a hopper and then disusses strategies for effectively removing them.01/31/2005
Preventing Phenolic Resin Reactor Accidents: Easy to Use Procedure for Checking Adequacy of Emergency Relief Vent Sizes
An easy to use generalized vent sizing formula is illustrated to be consistent with large scale industry experience and dedicated phenolic runaway reaction tests performed by Fauske & Associates, LLC. The formula also clearly explains the 1999 catastrophic failure of a phenol-formaldehyde reactor resulting from a grossly undersized relief system.06/25/2012
A large number of analytical and highly empirical correlations including monograms reflecting changing standards have been or are being proposed separately for gas and dust explosion relief venting. This white paper provides a generalized formula that is applicable to both gas and dust deflagrations including subsonic and sonic pressure relief conditions and is consistent with available experimental data and industry experience. Application of the model is illustrated for dust explosions. Download now.05/06/2011
The dangers posed by combustible dusts are no longer being swept under the rug. Tougher regulations and greater corporate resolve are making dust hazard management an increasingly important topic for every manufacturing sector including the chemical, food and pharmaceutical industries. This Special Report, brought to you by Chemical Processing details the dangers posed by combustible dusts and includes: the latest thinking on both hazard identification and mitigation; it identifies how to mitigate dust hazards in oral solid dosage facilities; it takes an in-depth look at regulations and the thinking behind suppression technologies as a result of past activity; more!04/17/2012
In this article, Kumar Dhanasekharan, Ph.D., technical specialist with the computational fluid dynamics (CFD) specialist Fluent, Inc., shows how modelling crystallizers using CFD can help improve process understanding, control crystal size distribution (CSD) and improve pharmaceutical crystallization results.03/06/2006
No matter what industry youre in, chances are you use some form of conveying. Whether it be pneumatic, flexible screw, aeromechanical or other, different conveyors are required to handle different products. But which conveyor is best suited for your operation? Despite the fact that conveyors have been around for almost a hundred years, this question still baffles many industries. In order to choose the right conveyor for your operations, you need to consider your conveyor's use - production, processing, packaging, and you need to consider your business objectives - improve operations? reduce labor?
In this special report, we look at the different types of conveyors, discuss the use of tubular bag conveyors, and provide 10 tips to prevent a variety of common problems that could occur with pneumatic conveyors.04/20/2009
This 16-page PDF white paper addresses the design of reliable feeders in your bulk material handling system.09/01/2005
Fine powders present problems that bulk solids do not when they are contained in a bin, hopper or processing vessel. The primary problem is the powder's flow pattern. This 10-page PDF whitepaper discusses solutions to this problem.03/01/2005