Author Archives: lubon

Construction of the Udokan copper deposit smelter in Russia

Moscow, September 4, a company owned by Russian billionaire Alisher Usmanov Holdings said on Tuesday that it has begun construction of a large mining and smelter in the Udokan copper deposit in a remote part of eastern Siberia.

The Udokan deposit has a copper reserve of approximately 26.7 million tons and is the largest undeveloped copper deposit in Russia and one of the largest undeveloped copper deposits in the world.

Baikal Mining Company said that after the start of production in 2022, the smelter will have a maximum ore refining capacity of 12 million tons per year. In the future, it is also possible to increase the annual refining capacity to 48 million tons.

Sulfamic acid 

Russia’s largest undeveloped copper mine begins construction

On September 4th, a company owned by Russian billionaire Alisher Usmanov Holdings said it had begun construction of a large mining and metallurgical plant at the Udokan copper mine in a remote area in eastern Siberia. With a total copper reserves of approximately 26.7 million tons, it is the largest undeveloped copper deposit in Russia and one of the largest copper deposits in the world.

Magnesium Sulphate

China’s domestic metal cobalt market on September 4

On September 4, the price of metal cobalt in the domestic non-ferrous metal spot market was temporarily stabilized. The average price of cobalt was 486875.00 yuan/ton, which was stable compared with the previous trading day.

On September 4th, the price of metal cobalt in major domestic manufacturers was temporarily stabilized. The average price of cobalt ex-factory was 52,5000.00 yuan/ton, which was stable compared with the previous trading day.

On September 3, the cobalt commodity index was 175.13, which was the same as yesterday. It was 26.70% lower than the highest point of 238.91 points (2018-04-15) in the cycle, which was 150.76% higher than the lowest point of 69.84 on July 5, 2016. (Note: Period refers to 2011-09-01 to date).

On September 4, the domestic cobalt price was temporarily stabilized, and the price of cobalt powder in Shanghai fell, and the actual transaction price remained stable. On September 4, the domestic cobalt price of Wuxi Stainless Steel Electronic Trading Center was 466,000-496,000 yuan/ton, and the price of cobalt was stable. On September 4, the stock was 571.25 tons, and the inventory was reduced by 1.5 tons. The supply of cobalt is at a high level, and downstream enterprises are purchasing on demand, but the market is still dominated by wait and see. According to the data of China Automobile Association, in July, the production and sales of new energy vehicles in China were 90,000 and 84,000 respectively, up 53.6% and 47.7% respectively over the same period of last year. The growth rate of new energy vehicles has declined, but the performance is still good. According to market expectations, the performance of new energy vehicles is positive for the stability of cobalt prices, but it is difficult to change the downward trend of cobalt prices. However, due to the absolute high cobalt price in the previous period, the import cost of cobalt ore is relatively high, and the space for cobalt price decline is limited. In terms of market outlook, there is no major change in the supply and demand of cobalt. The overall supply of cobalt is oversupplied, the price of cobalt is difficult to maintain, and the domestic cobalt price is still at risk of decline. It is expected that the price of cobalt in the market will fluctuate and stabilize.

Magnesium Sulphate

MDI prices fell slightly (8.27-8.31)

First, the price trend

According to the price monitoring of the business community, the aggregate MDI price this week closed at 17,250 yuan / ton, down 50 yuan / ton from last week, down 0.29% from last week.

Second, the analysis of influencing factors

sulphamic acid

Product: The domestic aggregate MDI market fell in a narrow range. Jinan Hequn Trading Co., Ltd. reported MR200 17000 yuan / ton; Guangzhou Boshun Chemical Co., Ltd. MR200 17000 yuan / ton; Nanjing Charcoal Chemicals Co., Ltd. reported MR200 199000 yuan / ton; Zhangjiagang Free Trade Zone Pan Asia International News MR200 17200 yuan / ton .

Industry chain: This month’s aggregate MDI was affected by the complementary product 141b, and the price fell sharply, falling to the lowest point of the year. It is reported that as a convergent MDI complement 141b, due to environmental factors, prices have skyrocketed, domestic supply is limited, manufacturers supply limited supply, supply is in short supply, resulting in low downstream operating rate, the demand for polymeric MDI decline, resulting in a sharp drop in prices, the industry panic I don’t know if this wave is suitable. It is expected that the short-term will not be resolved, the price will not increase significantly, and the follow-up price will continue to drop.

III. Conclusions and prospects

Business analysts believe that it is difficult to solve the problem of 141b in the short term, and the price will not rise sharply. The follow-up price will continue to drop.

Sulfamic acid 

New plastic mixture for complete degradation

New plastic blends for complete degradation Imagine a wonderful vision of throwing empty plastic water bottles into household compost bins, breaking down plastics and producing biogas and powering the home. Now, researchers show that bioplastics and certain mixtures can decompose under different conditions, indicating that we have taken an important step toward this future. And they reported their results in the ACS journal Environmental Science & Technology.

White pollution is a global environmental problem, especially in the oceans – plastic fragments or plastic strips can damage or entangle animals and birds in the ocean, so that these animals die. Although plastic recycling levels have increased in many countries, most plastic waste is still present in landfills or in our living environment. Scientists have developed biodegradable plastics, but they often lack the flexibility, strength or toughness of traditional plastics. Mixtures of different bioplastics can improve these properties, but their consistency with the environment is uncertain. Tanja Narancic, Kevin O’Connor, Ramesh Babu Padamati and colleagues wanted to study the degradation of various bioplastics and their mixtures under various conditions.

The researchers studied the degradation of 15 different plastics and their mixtures under artificially managed conditions, ie degradation under composting and anaerobic conditions. And degradation in unmanaged environments, ie in soil and fresh water or seawater. Polylactic acid (PLA) is one of the best-selling biodegradable plastics on the market, but it needs to be decomposed under high temperature conditions and cannot be composted at home. Surprisingly, under typical home composting conditions, a mixture of PLA and polycaprolactone (PCL) is fully degradable to carbon dioxide, biomass and water. Many individual plastics and mixtures have been tested to decompose under anaerobic digestion conditions, which produce biogas and all of which are degraded by industrial compost. Researchers say biodegradable plastic mixtures can create new possibilities for the management of plastic waste. However, under all soil and water conditions, only two plastics, polyhydroxybutyrate (PHB) and thermoplastic starch (TPS), are completely decomposed. Therefore, biodegradable plastics are not the best way to solve plastic pollution. Researchers point out that biodegradable plastics must be effectively managed by consumers.

Sulfamic acid