production technology and technology of tungsten copper alloy

Tungsten mining lack of total amount control, production is still serious. Advantage for the

protection and rational utilization of tungsten Molybdenum tube resources, starting in 2002, the state

shall practise a planned according to the protective exploitation of specified minerals mining

rules, the comprehensive research resource reserves, existing in exploration right or mining

right Settings and trend at home and abroad market demand conditions, the tungsten mining total

amount control management, and gradually to increase resources tax and stricter mining system

and a series of measures, but these measures to carry out the effect is not ideal, tungsten

concentrate yield levels every year. Excessive amounts of the main reason, it is a standard part

mainly from local collective and private small mines, the mine regardless of the index limits,

blind expansion; Second is the name of the other minerals mining tungsten; Three is in big mines

around still exist some phenomenon of illegal mining.
Resource comprehensive utilization level needs to be improved. Tungsten after nearly a century

of mining in our country, at present, the most black tungsten resources in China has almost

dried up. Mining enterprises to reduce costs, there is a rich abandon poor phenomenon,

individual companies or even back to the manual, half manual work, resource recovery rate is

low. Enterprises, especially small tungsten mountain is basically all the individual owners

lease contract operation, low technical quality, the pursuit of short-term interests, mining

rich abandon poor, difficult to pick by master abandon time, easy to abandon the predatory

exploitation of phenomenon is common, waste resource loss is great, beneficiation process

simple, low efficiency, adopted by the recovery of tungsten concentrate, only accompanying the

rest of the most valuable metal is not recycled, not only the recovery rate of tungsten is

extremely low, many associated metal elements is wasted. Individual companies even not built or

built after not using tailings, discarding the backfilling of tungsten and the grade of the

valuable metals are high, with associated also did not get reasonable utilization of resources,

low comprehensive utilization of resources. Abandonment of backfilling materials not only caused

the waste of resources, also caused many environmental problems.
Mining science and technology input, less acquisition technology and equipment level is not

high. Lack of tungsten dressing technology research input, loss of many professional and

technical personnel, technical level is tungsten eletrode unbalanced development, mining of innovation ability is

not strong. Tungsten beneficiation research is less, the basis of new separation equipment

research and development also largely stalled, part of the refractory ore beneficiation

technology is still no new breakthroughs, such as the weathering scheelite recovery has

struggled to get good results. Hard to choose black and white tungsten mixed ore dressing

technology is not perfect, still has larger ascension space in ore dressing indexes. Exchange of

experience and tungsten mines abroad processing technology also very few. For tungsten

beneficiation dressing plant, foreign technology understand less, not to mention the

introduction of advanced technology absorption.
Study and formulate feasible exploitation of total amount control regulations, strict industry

access, and promote the resources integration. Mining of tungsten mining continues to implement

protective control, curb excessive consumption of the domestic tungsten resources. By expanding

use of tungsten resources abroad, encourage domestic waste recycling tungsten and tungsten were

associated comprehensive recycling, to bridge the gap tungsten supply to balance supply and

demand. Formulate and improve laws and regulations policy, strict implementation of the

production and business operation license system, the industry supervision into the legal

system, establish a long-term supervision mechanism; Improve the technology, safety and

environmental protection industry admittance threshold, strict industry access; The tungsten raw

material trading, tungsten concentrate production quotas, taxes imposed index in detail.in the

whole process of supervision, control the total quantity of the mining, containing tungsten raw

material market disordered circulation; Intensify state-owned and state holding large enterprise

for strategy of tungsten resources integration and control efforts, encourage creating set

production, scientific research, sales, investment, as one of the intensive, capitalization and

internationalization of the state-owned and state holding large tungsten enterprise group,

improve capital operation strength and international competitiveness of China's large tungsten

enterprises.
Strengthen the low grade, associated comprehensive exploration and comprehensive utilization of

mineral resources. On of the low grade, and associated minerals of commercial value, unified

planning, comprehensive exploitation and utilization. Improve tungsten resources recycling

enterprises admittance threshold, set recycling index limits, in view of the numerous small mine

mining rich abandon poor, waste of resources, the present situation of the ore dressing recovery

rate is low, should formulate specific rules and regulations, regulate various tungsten

acquisition should be reached the level of technology, according to the different ore deposit

types and the different ore properties, the rules in all kinds of ore grade range shall meet

minimum ore dressing recovery rate, whoever in violation of regulations, production

transformation within a time limit until closed. For applicants who do not meet the requirements

of production, resolutely is not approval. And encourage mine to rich and poor, extend the life

of the mine, balancing resources recovery, and capital, technology and policy support. Can set

up a special fund for mining remnant ore recovery, waste resource recovery technology research,

such as the provision of support and encouragement. Encourage vein edges and low grade of mining

and ore dressing, encourage the accompanying tungsten, low grade tungsten composite recycling,

improve the recovery ratio of tungsten mining, comprehensive.
Improving acquisition technology and equipment level and resources comprehensive utilization.

Strengthening technology research and comprehensive utilization of the research work on tungsten

acquisition, improve the level of tungsten ore selecting technical level and comprehensive

utilization of resources. Attaches great importance to the ore process mineralogy research, a

comprehensive knowledge of the mineral composition of ore, ore of tungsten content embedded in

the fabric status, etc., determine reasonable mineral processing methods for tungsten ore mill

plant and process so as to provide basis; Strengthen tungsten mines on the recovery of

associated elements, comprehensive utilization of research, improve the comprehensive recovery

of tungsten dressing plant level, make full use of the associated beneficial components in

tungsten stone, change a single comprehensive recycling recycling tungsten multiple components,

enhance the overall efficiency of the mine. At the same time should strengthen associated

comprehensive recycling utilization of tungsten in nonferrous metal mine, make full use of

tungsten resources, improving the comprehensive benefits. Intensify tungsten fine mud separating

technology research and application. Fine mud recovery, low mining, should according to the ore

nature of fine mud, this mineral process necessary reform. Implementation of technological

transformation, improve the level of tungsten dressing equipment, and processing the whole

process of monitoring and control automation, beneficiation production management

informationization. Strengthen tungsten process flow and dressing medicament research

development and research work, development of low pollution, low cost and high efficiency of

tungsten dressing technology, and the mineral processing reagents tungsten ore dressing process

indicators, looking for serious pollution of substitute for conventional reagents.
Set up a special waste tungsten resources research, promote the regeneration of the secondary

tungsten resource utilization. Based on the experience of the western countries attach

importance to tungsten scrap recycling, the development of low cost and high quality, high grade

and high purity recycling tungsten technology, strengthen the tungsten scrap recycling in our

country, change resources advantage for the technical advantage.
Set up the mechanism of tungsten resources reserves, has important strategic significance.

Tungsten resources reserves and product reserves reserve mechanism is a kind of macro and

indirect market regulation policy. Reserve mechanism is adopted as the operating cost is low,

control effect is remarkable, can play a role in a short period of time, and has great

flexibility, more moderate effects on market of related interest subjects. Will reserve policy,

industrial policy to cooperate with another, can be effectively standardize the order of

production and operation of the tungsten products market, promote the comprehensive development

and utilization of tungsten resources and the long-term, healthy development of tungsten

industry.