Tag: Sulphuric Acid

Global sulphur prices were mostly assessed flat in mid-January, with only slight changes for China, Indonesia and India, while the first quarter contracts for the Middle East, North Africa and Tampa increased from the previous quarter. Overall, the number of transactions taking place globally has declined as subdued demand has limited trading activity in most delivered markets. The current sulphur price environment has been shaped by the combination of rising Chinese demand and higher Middle East f.o.b. prices in the second half of last year. As a result, some consumer markets such as Indonesia and India have been subject to upward pressure in order to remain attractive destinations. But demand remained lacklustre across delivered markets, leaving prices relatively stable.

New concepts focused on the transfer and combination of existing sulphur and sulphuric acid technologies to support decarbonisation of the sulphuric acid industry are being investigated. In this article three research projects are discussed: sulphur dioxide depolarised electrolysis for green regeneration of spent acid, use of renewable heat and catalyst to the splitting process from sulphuric acid to SO2 for reduction of fossil fuel consumption, and sulphur as an energy vector.

Nickel sulphate is an intermediate step in the production of materials for batteries, and is seeing rapid demand growth as the auto industry moves towards electric power trains.

Chile’s environmental regulator SMA has filed a charge against state-owned Codelco, alleging emission violations at its Potrerillos copper smelter in the Atacama region of northern Chile. An audit showed the company had not implemented a monitoring system for sulphur dioxide emissions and other procedures in accordance with environmental standards for the plant, Reuters news agency reported. The SMA labelled the charge as serious, which could lead to a fine of around $4.1 million, and possible revocation of the environmental permit or closure. Codelco had ten days to submit a compliance plan, and 15 days to present a defence.

A complete listing of all articles and news items that appeared in Sulphur magazine during 2024.

Due to ever stricter legislation towards lower SO2 emissions, superior catalyst shape and composition has become ever more important. Jochen Willersinn of BASF SE explains how BASF’s high-performance catalyst O4-116 Quattro combines the benefits of an increased surface area with a superior caesium-promoted active phase composition enabling significantly lower ignition and operating temperatures and thus reducing SO2 emissions.

This study introduces a new platinum-promoted honeycomb catalyst for sulphur dioxide oxidation, designed to enhance energy efficiency and reduce emissions in sulphuric acid production. Compared to conventional vanadium oxide based catalysts, the platinum-based catalyst demonstrates higher catalytic activity, lower ignition temperature, and significantly reduced toxicity.

Sulphur prices may remain stable before decreasing on muted demand and transactions may increase in frequency contributing to price decreases in the first half of 2025.

India’s phosphate production is using increasing volumes of sulphuric acid, but new domestic smelter and sulphur burning acid capacity may mean reduced imports in future.

Global sulphur prices underwent increases in some key benchmark markets during October, but spot activity nevertheless remained muted, with demand subdued and availability tight. Market participants continue to closely track geopolitical developments.