Featured

Latest from ChemEngg Research.

Stoppered glass jars of catalyst pellets and powders on a laboratory bench

Choosing a Catalyst: Heterogeneous, Homogeneous, and What Actually Decides It

Activity is the easiest property to measure and the least likely to settle the question. Selectivity, separation, and what the catalyst does on its fifth run are usually what decide a process.

Dr. Vaibhav R. Acham22 July 20269 min read

02

Articles & case studies

Everything we've published.

A technician in a coverall and gloves transferring a white crystalline powder onto a watch glass

Case Study

Holding an Agrochemical Intermediate to a Consistent Assay

One of our own manufacturing programmes rather than a client project. The reactive chloride that makes 2-chloroacetamide useful downstream is the same one that degrades it, and that single fact governs the whole process.

Dr. Vaibhav R. Acham18 July 20266 min read

Close-up of a bed of fine red iron oxide pigment powder

Case Study

Turning an Iron Waste Stream into a Pigment Line

One of our own development programmes rather than a client project. Iron-bearing waste is normally a disposal cost. Recovering it is straightforward; making the recovered oxide good enough to sell as pigment is the actual work.

Dr. Babita A. Kale15 July 20266 min read

Capped sample vials loaded on the carousel of a chromatography autosampler

Article

What It Means to Validate a Method on Your Matrix

A method that gives a clean number on a pure standard has proved very little. Validation is the work of showing it still gives the right number in your material, on a bad day, in someone else's hands.

Dr. Vaibhav R. Acham8 July 20267 min read

Young plants rooted in a hydroponic tray under artificial grow lighting

Case Study

Keeping an Oxidiser Alive in a Recirculating Root Zone

In-house formulation work. Hydrogen peroxide is the right chemistry for a hydroponic system and the wrong one for its residence time. Holding it stable in solution is what made it usable.

Dr. Vaibhav R. Acham1 July 20265 min read

Stacked scrap circuit boards with soldered connectors and components

Case Study

Pulling Copper Back Out of Electronics Scrap

An in-house recovery programme, not a client project. Getting copper into solution takes an afternoon. Getting it back out of a solution that also contains everything else on the board is the work.

Dr. Babita A. Kale27 June 20267 min read

Spherical gas storage vessels and pipe racks at a gas processing site, seen from above

Article

Removing Hydrogen Sulphide from Compressed Biogas

H2S decides whether a CBG plant meets specification or corrodes its way through the year. The choice between chemical and biological scrubbing looks obvious on capital cost and reverses once you count the consumables.

Dr. Vaibhav R. Acham24 June 20267 min read

A spherical pressure vessel and a framed gas holder at a gas storage site

Case Study

Why a Biogas Scrubber Stops Working

In-house product development. Biological H2S scrubbers cost less to run than chemical ones right up until the culture is underfed, and the symptom looks identical to a fault in the vessel.

Dr. Vaibhav R. Acham17 June 20265 min read

A pressure gauge and clamped fitting on the head of a stainless steel vessel

Article

Nitration, Hydrogenation, and the Hazard Review That Comes First

A runaway is not bad luck. It is the predictable result of putting energy into a vessel faster than it can be taken out, and the numbers that tell you so exist before the batch is charged.

Dr. Vaibhav R. Acham10 June 20268 min read

Handwritten route notes and reaction schemes on a laboratory clipboard

Article

Process Development Best Practices for Specialty Chemicals

A route that works once is not a process. Here is how we scout candidate routes, run feasibility, and decide what to optimise for before committing a client's budget to a direction.

Dr. Vaibhav R. Acham3 June 20267 min read

Stainless steel reactor vessel with process piping, valves and a pressure gauge

Article

Scaling from Lab Bench to Pilot Demonstration

Chemistry does not change with scale. Heat transfer, mixing, and addition time do, and they are what usually breaks a route on its first kilogram batch.

Dr. Vaibhav R. Acham21 May 20267 min read

A gloved researcher holding a petri dish of green algae under study

Article

A Practical Guide to Life Cycle Analysis for Chemical Manufacturers

Customers and regulators are asking chemical manufacturers to quantify environmental impact. Here is what a life cycle analysis actually involves, and what it is worth to you beyond the disclosure.

Dr. Vaibhav R. Acham9 April 20266 min read

Your project

Have a process challenge to solve?

Reading about a problem is not the same as solving one. Tell us what you are stuck on and we will give you an honest view on whether we can help.

Email us your requirement Review capabilities

Notes from the lab.

Latest from ChemEngg Research.

Choosing a Catalyst: Heterogeneous, Homogeneous, and What Actually Decides It

Everything we've published.

Holding an Agrochemical Intermediate to a Consistent Assay

Turning an Iron Waste Stream into a Pigment Line

What It Means to Validate a Method on Your Matrix

Keeping an Oxidiser Alive in a Recirculating Root Zone

Pulling Copper Back Out of Electronics Scrap

Removing Hydrogen Sulphide from Compressed Biogas

Why a Biogas Scrubber Stops Working

Nitration, Hydrogenation, and the Hazard Review That Comes First

Process Development Best Practices for Specialty Chemicals

Scaling from Lab Bench to Pilot Demonstration

A Practical Guide to Life Cycle Analysis for Chemical Manufacturers

Notes from the lab.

Latest from ChemEngg Research.

Choosing a Catalyst: Heterogeneous, Homogeneous, and What Actually Decides It

Everything we've published.

Holding an Agrochemical Intermediate to a Consistent Assay

Turning an Iron Waste Stream into a Pigment Line

What It Means to Validate a Method on Your Matrix

Keeping an Oxidiser Alive in a Recirculating Root Zone

Pulling Copper Back Out of Electronics Scrap

Removing Hydrogen Sulphide from Compressed Biogas

Why a Biogas Scrubber Stops Working

Nitration, Hydrogenation, and the Hazard Review That Comes First

Process Development Best Practices for Specialty Chemicals

Scaling from Lab Bench to Pilot Demonstration

A Practical Guide to Life Cycle Analysis for Chemical Manufacturers