November 30, 2021

Reselection theory

In recent years, domestic and foreign scientific and technological workers have carried out a lot o ...

The definition of "three violations" in the second mine of Yungaishan Coal Mine

Yungaishan Coal Mine Mine "three violations" is defined in the standard Chapter 1 Compreh ...

What are the selection methods for spodumene?

Spodumene beneficiation methods are hand-selected method and the flotation, the flotation method is ...

Whole mud cyanidation of fragile ore

Shenghailiena (Sint Helena) is a gold mine into production in 1951 of the old cyanide plant, due to ...

Tool types and material analysis and use in machine tool processing

Commonly used turning tools have the following types: 1 High carbon stee ...

Purification of rare earth metals by regional melting method - application examples

After the metal impurity content of lanthanum, cerium, gadolinium, terbium purified by zone melting ...

Safety measures for tunneling on the upper channel

Safety measures for tunneling on the upper channel I. Overview According to the mine production ar ...

Other decomposition process technology of monazite rare earth concentrate

Under the calcination conditions of 200 to 240 ° C, concentrated sulfuric acid can effectively d ...

Guanghao shares opened up today, why are LED listed companies so vocal?

On the morning of April 6, Xiamen Guangsheng Electronics Co., Ltd. was officially listed on the GEM ...

1000 tons / day copper, iron selection plant main equipment selection schedule

1000T/d copper and iron selection plant main equipment selection list 1 Serial number Device name ...

The names and explanations of the top ten special types of coal mines! It’s hard not to know these things and want to retire early!

Ten types of special names and explanations coal industry 1. Underground underground electrical op ...

704 Hengtuo ship equipment received the official ship full speed fin reduction order

It is reported that in early January, 704 Hengtuo Marine Equipment Co., Ltd. and a shipyard signed a ...