1 Introduction Chuquicamata is now part of the Chilean national copper company Kodelco. It is one of the largest porphyry copper- molybdenum deposits in the world to date. Molybdenum production accounts for more than 65% of Chile's total production and supplies more than 19% of world molybdenu

The ore molybdenum ore is a quartz vein type molybdenum deposit, mainly composed of granite porphyry and Anshan porphyrite structure. Useful mineral molybdenite minerals mainly associated with a magnetic iron ore, iron pyrite, and titanium, and the like; gangue minerals are quartz, feldspar, mica a

Classification of rare earths 1) Light rare earth (also known as 铈 group): 镧 , 铈, 镨 , é’• , é’·, 钐 , é“• , é’† . 2) Heavy rare earth (also known as é’‡ group): 铽 , 镝 , é’¬ , é“’ , é“¥ , 镱 , é•¥ , é’ª , é

With the continuous development of bauxite resources in China, high-quality dwindling resources. In order to solve the contradiction between the quality of bauxite and the quality requirements of alumina production for bauxite, the research on desiliconization of bauxite physical ore dressing is mo

Ferrochrome smelting slag referred to as chromium slag, solid waste produced when smelting ferrochrome alloy, these solid waste if not scientific and effective treatment, it will cause great threat to the environment and human health, while ferrochrome slag recycling Not only can it obtain certain

Analysis of Figure 1 gives the following information. Figure 1 Electrochemical equilibrium diagram of water (298K, =0.29atm) First, the thermodynamic stability of water The area between line a and line b in Figure 1 is the thermodynamically stable zone of water in which water does not decompos

According to the latest data released by the China Petroleum and Chemical Industry Federation, from January to February, the economic operation of the petroleum and chemical industries was generally stable and the start was in line with expectations. The cumulative total output value was 1.92 tril

China Institute of Metrology was informed that the standards for the chiral, length and purity of single-walled carbon nanotubes developed by the hospital have filled in the blank of the value transmission system for carbon-based nanomaterials in our country and provided technical support for brea

The MBBR process, first developed in Norway about 25 years ago, is now a mature and proven compact wastewater treatment technology. Like the activated sludge process, the MBBR process takes full advantage of the entire reaction cell for biomass growth. This article focuses on MBBR suspended filler

[ China Agricultural Machinery Industry News ] With the increase in the rate of agricultural mechanization, the summer harvest and autumn harvest time are shortened, but the current cost of agricultural machinery purchase is very high, the domestic price is basically above 100,000, and the foreign

Recently, the High-tech Department of the Ministry of Science and Technology organized an expert in Anshan, Liaoning Province to conduct an acceptance of the “12-Five” National Science and Technology Support Program advanced manufacturing field project “Study and

Introduction: Today, we should introduce in detail the test setup method of the E5071C network analyzer: 1. Frequency setting: Press Start on the instrument panel as the start frequency and Stop as the stop frequency. If we want to measure 2.4G to 5.8G, we first press Start to set it to 2