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Comment by chromacity

1 day ago

> The article isn’t arguing that if ICL facilities are disrupted, that’s it, no more bromine forever. It is saying that if these facilities are disrupted there will be an even bigger problem with DRAM supply than already exists because there is no excess supply, no good alternative, and no quick way to ramp up production.

This is literally the thesis of each and every one of these articles. Only one mine in the world can produce sand for semiconductors, etc. It makes the arguments incredibly persuasive and the predictions almost always wrong.

In reality... I'd wager that the semiconductor industry uses very little bromine compared to say, plastics; and that it can be recycled or sourced from other places with minimal technological investment (e.g., as a simple byproduct of salt production in the US).

Your comment, like most in this thread, confuses ordinary bromine with semiconductor-grade pure bromine.

The semiconductor industry does not use ordinary chemical substances, but only special semiconductor-grade pure substances, which are many orders of magnitude more pure than the so-called "pure" substances that are used elsewhere in the chemical industry.

It is absolutely irrelevant that substances like ordinary bromine and ordinary silicon are very abundant and very cheap. The semiconductor industry cannot use them and the corresponding semiconductor-grade pure substances are far more expensive and their availability is limited by the production capacities of the very few producers that exist for them around the world.

If the few existing production plants for any semiconductor-grade pure substance were destroyed, semiconductor device manufacturing would be stopped for a few years, until new purification plants are built.

TFA argues that in order to avoid such risks, there should be more purification plants in geographically-diverse locations, for instance that one such purification plant should be built in USA, where there are local producers of ordinary bromine, that would provide the raw material.

I clicked through on the link that the article said showed that bromine was impossible to recycle. The abstract says "Here we propose a catalytic strategy that enables the selective and mild-condition conversion of all organobromides present in wastes into renewed bromides for Br recycling. It employs Ullmann-type reactions enabled by inexpensive Cu(I), simple ligands and hydroxides in DMSO–H2O solvent. This strategy achieved >95% bromide yields at a temperature ≤120 °C for complex real-world Br-laden wastes."

I'm sure it would take a long time to make this process fit for mass bromine recycling, but it's a bit hard to take the rest of the article seriously.

  • You overlook the "long time" in your last sentence.

    Of course any of these problems can be solved in a long time, 5-10 years.

    The article is talking about the problems of between potentially supply being shut off tomorrow and being fixed in "a long time". Not good times.