Tokai Carbon Co., Ltd., Bridgestone Corporation, Kyushu University and Okayama University have started a technology development project to perform secondary processing on recovered carbon black (rCB) extracted from polymer products like end-of-life tyres containing rubber in order to create new eco carbon black (eCB) from these and other sources. With rubber reinforcing qualities comparable to those of virgin carbon black (vCB), which is made from coal and petroleum, the initiative seeks to transform these resources into eCB. Through the development of cutting-edge recycling technologies, the collaborative project partners want to contribute to the attainment of a circular economy and carbon neutrality.

This project is a component of the ‘Technology Development for Carbon Recycling from Polymer Products Including End-of-Life Tires’ demonstration programme, which was put out by Tokai Carbon in collaboration with Bridgestone, Kyushu University and Okayama University. The New Energy and Industrial Technology Development Organisation (NEDO) chose the project on 23 December 2024, under the heading of ‘Green Innovation Fund Project/Technology Development for Manufacturing Plastic Raw Materials Using CO₂ etc’.

In order to recover and utilise rCB, efforts are already in progress to pyrolyse polymer materials, including rubber from tyres that are nearing the end of their useful lives. Nevertheless, there are still obstacles to overcome before rCB may be used practically in new tyres. Because it contains so many contaminants, rCB performs worse than vCB when it comes to rubber reinforcement. Additionally, heat recovery produces CO2 emissions even if many end-of-life tyres are successfully used as fuel. The demand for tyres is predicted to increase in tandem with the projected expansion in the automotive and transportation sectors. The goal of these initiatives is to improve resource circulation by making it easier to recycle vCB, a crucial component of tyres.

Bridgestone, Kyushu University and Okayama University's knowledge and technologies will be combined with Tokai Carbon's own technologies and skills gained from manufacturing carbon black. The goal of the collaborative project is to create technologies that will eliminate impurities from rCB and create eCB with better rubber reinforcing qualities. By fiscal year 2032, the initiative aims to set up a demonstration unit that can produce 5,000 tonnes of eCB annually. The research will also concentrate on creating unique polymer/carbon composites that allow carbon black to be reused without pyrolysing tyres that have reached the end of their useful lives. With these efforts, the collaborative project participants hope to achieve enhanced recycling of scarce materials and contribute to lowering the CO2 emissions linked to the manufacturing of carbon black and the recycling of end-of-life tyres.

 Natural rubber prices declined in March amid significant market volatility, according to the latest monthly report from the Association of Natural Rubber Producing Countries (ANRPC).

The industry body said in its Monthly NR Statistical Report for March 2025 that the downward trend was attributed to multiple factors, including the postponement of the European Union Deforestation Regulation (EUDR), changes in US tariff policies, and falling oil prices.

Despite strong demand from China in early 2025, market sentiment was dampened by growing concerns over new US tariff measures, which analysts say could reshape global rubber trade flows.

The ANRPC, representing major producing nations including Thailand, Indonesia, Vietnam and Malaysia, projected global natural rubber production to grow by a modest 0.4 percent in 2025 compared to the previous year.

Meanwhile, global demand for natural rubber is forecast to increase by 1.5 percent this year, supported primarily by expansion in the electric vehicle market, according to data compiled from ANRPC member countries.

This growth comes despite concerns of a potential global economic slowdown and complications arising from new US trade policies that could hinder international trade.

Natural rubber, a critical raw material for tyre manufacturing and various industrial applications, has faced increasing price pressures as automotive production forecasts remain uncertain in key markets.

Tyre manufacturer Bridgestone Americas announced it has developed the industry’s first commercially available tyre containing 70 percent recycled and renewable materials, marking a significant breakthrough in sustainable manufacturing.

The demonstration commercial tyre, which will debut at the WasteExpo trade show, is based on the Bridgestone M870 model designed specifically for urban waste collection fleets. It has received ISCC PLUS certification, a globally recognised standard that validates sustainability throughout the supply chain.

Using a Mass Balance approach, the tyre incorporates circular synthetic rubber compounds, circular carbon black, and natural rubber. This method allows Bridgestone to track the quantity of alternative materials used in production.

“The debut of this 70 percent recycled and renewable demonstration tyre is not a glimpse into the future, but the reality of today,” said Steve Hoeft, President, Commercial Truck Group, Bridgestone Americas. “With this tyre and the work done with our supply chain, we’ve created new opportunities with a proven product by meeting the rigorous standards set by the ISCC. This tyre directly demonstrates how Bridgestone can help fleets achieve their sustainability goals now with expertly manufactured premium tyres."

According to the company, a limited production run will be tested on waste collection vehicles later this month.

New monitoring technology

Alongside announcing the sustainable tyre, Bridgestone also revealed a new drive-over system for fleet operators. The technology uses specialised plates to capture tread depth measurements as vehicles drive over them, providing comprehensive data on tyre condition and alerting operators to irregular wear issues.

The system aims to help fleet managers optimise maintenance schedules and extend tyre life through more informed decision-making.

Both innovations align with Bridgestone’s corporate E8 Commitment, which focuses on environmental sustainability and operational efficiency improvements.

Ecolomondo Corporation, a leading Canadian innovator in sustainable scrap tyre recycling technology, has announced that its new milling line at Hawkesbury facility has achieved a major milestone during recent testing by reaching a throughput of approximately 2,700 lbs per hour of recovered carbon black (rCB). This result surpasses the company’s projected target of 2,200 lbs per hour.

When the new milling line is completely operational, it should be able to process 2,200 pounds of rCB per hour and provide a particle size distribution of 96 percent between 10 and 15 microns. It is anticipated that the plant would process more than 1.5 million scrap tyres annually, recovering 1,350 MT of process gas while producing 4,500 MT of recovered carbon black, 5,400 MT of oil and 2,250 MT of steel.

The company expects the commercial production of rCB to start by the end of May 2025. After being contacted, offtake clients told the company that they were eagerly expecting a larger supply of steel, oil and rCB, said the company. Depending on end-product market pricing, the company's yearly income from the sale of these sustainable goods plus tipping fees of USD 145 per metric tonne is expected to reach USD 12.1 million, with an estimated EBITDA of 45 to 50 percent, added the company statement.

Jean-François Labbé, Interim CEO, Ecolomondo Corporation, said, “This is a major achievement that brings the Hawkesbury facility closer to full production and commercialisation.”

Global speciality chemicals company Orion S.A. has launched a new bio-circular carbon black called ECOLAR 50 POWDER to provide coatings manufacturers with a new solution for more sustainable coatings.

ECOLAR 50 POWDER, which is entirely based on bio-circular feedstock, has coloristic qualities that are on par with those of ordinary speciality carbon blacks and includes 100 percent biogenic raw material according to 14C analysis. The coloristic qualities of ECOLAR 50 POWDER, a low to medium colour furnace black, offer moderate tinting strength and medium jetness in mass tone applications. ECOLAR 50 POWDER offers equivalent coloristic performance for full-tone and tinting applications, as well as comparable wetting and dispersion characteristics to conventionally manufactured low-colour furnace blacks.

ECOLAR 50 POWDER outperformed other common specialist carbon blacks in achieving medium jetness in a solvent-borne alkyd/melamine stoving enamel system. It created a similar neutral undertone as well. When tested in a water-borne 1K PU coating system, ECOLAR 50 POWDER created a more neutral undertone and jetness that was on par with other regular speciality carbon blacks.

Tilo Lindner, Vice President Global Marketing – Speciality Carbon Black, Orion, said, “We’re leading the way in advancing carbon black to meet increasing industry demands for sustainable products. ECOLAR 50 POWDER enables coatings formulators to develop truly sustainable products in all kinds of coatings applications.”