Wednesday, July 25, 2012

Development of manganese materials for refrigeration applications

Magnetic cooling alloys
Many magnetic materials react with a change in temperature, when placed in a magnetic field or away from it. Researchers at the Leibniz Institute for Solid State and Materials Research Dresden and TU Darmstadt have Heuslerlegierung of nickel, manganese, cobalt, indium, and examined more closely, in the magnetocaloric effect is particularly large. The researchers propose to use the material for the development of highly efficient refrigerators. This could achieve a higher efficiency than the established compression chillers.

This phenomenon has been known since 1881 found only a few technical applications. Physicists use it for example in order to produce extremely low temperatures near absolute zero. For a broader application, it is still a lack of suitable materials. The main reason is that the Curie temperature above which no longer occurs, the effect is very low for many substances. Several research groups are working on materials exhibiting magnetocaloric behavior at higher temperatures up to room temperature, require only small magnetic field strengths, while inexpensive, nontoxic and readily available are.

Physics of the cooling process

purchase guarantee signed production in the Big George manganese mine

Bracken International Mining: $ 260 million purchase guarantee signed production in the Big George manganese mine

Hamburg (press relations) - Bracken International Mining signed $ 260 million decrease in warranty? Production in the Big George manganese mine

Things to do
? $ 260 million (30.000t per month) purchase guarantee with sanitary Trading;
? Positive cash balance in the last quarter of 2012;
? Development of staff training and health facilities in Kupang continue.

Bracken International Mining is pleased to announce that it has signed a contract with the trading of sanitary Qingdoa, China, has signed concerning the supply of manganese ore from its mine at Big George West Timor, Indonesia with a total value of $ 260 million.

Sanit will buy 30,000 tonnes of manganese per month, which is exported via the nearby port of Kupang. The first delivery will take place late November 2012.

The sale was completed following the letter of intent in May. Another MoU was signed with Shandong Coking Coal, and it is expected that the contract is signed promptly.

Wednesday, August 11, 2010

Orosur Mining and Gladiator Resources

 - An Option and JV agreement for potential deposits (Uruguay).
Proactive Investors company news image

Orosur Mining Inc. (TSX-V: OMI, LON: OMI), a gold producer and explorer has an option and joint venture agreement with Gladiator Resources Ltd (ASX: GLA completed).

GLA now has the right to earn up to 80%, at Orosur's iron ore, manganese ore and base metal potential deposits in the "Isla Cristalina" belt in Uruguay.

Orosur CEO David Fowler said: "Gladiator Resources' first due diligence on the Isla Cristalina iron project confirmed the potential for the development of an iron-making operation."

Drilling and feasibility work is expected to begin this month he said.

Orosur will not invest additional funds to the project until the end of the feasibility study. We look forward to the results of the work in the coming years, "said Mr Fowler.

Friday, June 25, 2010

ferro manganese markets

The 2009 Import and Export Market for Ferromanganese with over 2% Carbon by Weight in the Middle EastOn the demand side, exporters and strategic planners approaching the market in the Middle East face a number of questions. Which countries are supplying ferro manganese with over 2% carbon by weight to the Middle East? What is the dollar value of these imports? How much do the imports of ferro manganese with over 2% carbon by weight vary from one country to another in the Middle East? Do exporters serving the market in the Middle East have similar market shares across the importing countries? On the supply side, the Middle East also sells to the international market of ferro manganese with over 2% carbon by weight. Which countries in the Middle East supply the most exports of ferro manganese with over 2% carbon by weight? Which countries are buying their exports? What is the value of these exports and which countries are the largest buyers? Where is ferro manganese wanted.

Saturday, February 6, 2010

Manganese And Chromium

Manganese And Chromium

We are looking on book reviews on Manganese And Chromium that we would like to publish here. If you have read the book and found it useful, please sent us a book review and we would like to publish it here

Friday, December 5, 2008

sell manganese ore

Zambian manganese ore is for sale. There are 20.000 metric tons of manganese ore available from Zambia. The product is offered FOB an African port. If you are interested into buying manganese ore, please visit sell manganese ore.

Monday, August 4, 2008

manganese ore for sale

South African Manganese ore is for sale. If you are interested into manganese ore, please visit manganese ore for sale. This is manganese ore from a mine dump.