Method for depleting lead matte copper and copper matte with induction furnace

Strategic Emerging Industries: Energy Saving and Environmental Protection

Advanced Technology: Advanced Manufacturing

Unit Name: Changsha Keliwe Distillation Technology Co., Ltd.

Nature of the company: Business

Contact person: Du Huimin

contact number

Email: [email protected]

Organization website: http://

Recommended Unit: Hunan Provincial Department of Science and Technology

Achievement profile:

1 Question Source and Background

Lead matte copper and barium matte are the products of crude lead and crude pyrotechnic refining copper froth smelting and copper smelting, which are reduced and smelted in a metallurgical furnace. The main components are lead or bismuth and copper, generally containing 10% of lead or bismuth. -35%, copper 25%-35%. At present, the recovery of valuable metals such as lead and yttrium from lead gla copper and beryllium copper is mostly carried out using the blast furnace method and the reverberatory furnace method. There is no complete separation of lead or bismuth, copper, and sub-ice copper contains lead or bismuth. High, high energy consumption, serious environmental pollution, short life of the furnace and other shortcomings.

2 technical principles and performance indicators

A method for depleting lead matte copper and barium matte using an induction furnace is characterized in that lead matte copper or matte copper matte, lead concentrate or sulphur, iron scrap or iron and pulverized coal are added in an induction furnace according to a certain ratio. Reduction smelting, smelting at 800-1000 degrees for 2-3 hours, to achieve the separation of lead or yttrium and copper in the form of lead glazing or glacial copper, and then heating to 1200 degrees - 1250 degrees smelting 2-3 hours for lead Or the compound of ruthenium is reduced to produce lead or bismuth, and copper enters the subglacial copper to separate copper, lead or bismuth, and the subglacial copper and crude lead or ruthenium are poured together into the ingot mold and solidified and broken to obtain subglacial copper. Crude lead or rough. The processing process is performed in an induction furnace, the production process is simple, the separation of copper and lead or bismuth is more thorough, the metal recovery rate is high, and the pollution is small.

3 The creativity and advancement of technology

Provided is a method for simplifying the production process, complete separation of copper and lead or bismuth, high metal recovery rate, and less pollution, and depleting lead matte copper and iridium matte using an induction furnace, so as to overcome the incomplete separation of lead or bismuth and copper. Copper matte contains high lead or bismuth, high energy consumption, serious environmental pollution, and short life of the furnace.

4 maturity of the technology, scope of application and safety

This method is applicable to the copper scum generated by crude lead and coarse thorium refining and copper removal, and the depletion of lead glacial copper and thorium glacial copper obtained by reduction smelting in a metallurgical furnace. The technology has been market-oriented, successfully applied to production practices, energy saving, safety and environmental protection.

5 Application and Problems

This method has been put into production at Xuanwei Jiatai New Material Co., Ltd., Yongxing Xinyu Environmental Protection Technology Co., Ltd., Nandan Nonferrous Metals Co., Ltd., Huludao Zinc Industry Co., Ltd., and other smelters. The smelters are popularized and popularized.

Achievements:

Provided is a method for simplifying the production process, complete separation of copper and lead or bismuth, high metal recovery rate, and less pollution, and depleting lead matte copper and iridium matte using an induction furnace, so as to overcome the incomplete separation of lead or bismuth and copper. Copper matte contains high lead or bismuth, high energy consumption, serious environmental pollution, and short life of the furnace.

A utility model patent has been authorized. Patent name: A method of depleting lead matte copper and copper matte using an induction furnace, patent number: ZL 2010 1 0237144.X.

Profitability of results:

The process is suitable for each wet zinc smelting process and is used for treating zinc-cadmium slag and sponge cadmium produced by the process. Zinc and cadmium residue and sponge cadmium are all cadmium-containing materials, and the country has stringent requirements for its emission and transfer. However, in the traditional production process, alkali slag pollutes the environment when the materials are processed, the investment is high, the energy consumption is high, and the valuable metal cannot be recovered. Since the research and development of the results and successful trial production at the Zhuzhou Smelter, there have been frequent reports that domestic wet-process refineries such as Yuguang Gold & Lead, Zijin Mining, Huludao Zinc Plant, Yunnan Copper, Western Mining, Shuikoushan Nonferrous Metals Group, Shaanxi Zinc Industry Co., Ltd., Chifeng Co., Ltd., and Hung Hom Co., Ltd. have adopted the results in a few short years and brought huge economic and social benefits to enterprises and society, especially in the hazardous materials recycling industry. , outstanding contribution.

Maturity: 12, profit level: start profit and profit exceeds 10% of total investment

Market analysis:

Copper matte is an intermediate product of pyrometallurgy of heavy metals. Lead matte copper and barium matte are the products of crude lead and crude pyrotechnic refining. Copper froth slag, which is copper smelting, is reduced and smelted by a metallurgical furnace. Its main component is lead or Barium and copper, generally containing 10% to 35% of lead or barium, and 25% to 35% of copper.

The process is simple, the separation of copper and lead or antimony is thorough, the metal recovery rate is high, the pollution is small, and it has an absolute competitive advantage in the market. However, due to the late launch of the process, the company did not promote as a key project, the smelters used old-fashioned processes to deal with, have already purchased the corresponding equipment and facilities, reluctant to purchase new equipment to adopt new technologies, so at present The market share is low and only a few companies use it. However, with the upgrading of equipment and facilities at various smelting plants, the process has broad prospects for development and is worth looking forward to.

Business model analysis:

My company's business model is similar to the Dell model: that is, after sales. According to the needs of consumers, tailor-made production of refined cadmium specific technology, configure the appropriate facilities. First, according to the specific conditions and requirements of customers, determine the specific process and facilities. Once the plan is determined, the customer will pay a certain amount of advance payment. At this time, the manufacturer will manufacture the equipment and complete the equipment. We will carry out the overall installation and commissioning and trial production until Delivery.

Marketing status:

The market for this process is the copper matte produced by heavy metal pyrometallurgy. Any company that has heavy metal pyrometallurgical smelting is the market to which this process applies.

The pricing of the product is based on the user's specific conditions, determine the applicable equipment and facilities, in order to determine the program price.

Sales channel: self-sale organization.

Product promotion model: direct marketing, network promotion, word-of-mouth marketing, and experiential marketing.

Typical trial customers: Xuanwei Jiatai New Materials Co., Ltd.

The proposed conversion method: technology transfer; equity financing

Application promotion has been invested: 2.3 million yuan

Demand for funds: 5 million yuan

Financing purposes: product development

Governance structure:

Changsha Keliwe Distillation Technology Co., Ltd. is a high-tech enterprise integrating scientific research, design, production, sales and technical services. It is dedicated to the development and application of non-ferrous metal distillation purification technology. Founded in 2003 in Changsha, Hunan Province, it has its own independent design and construction team and independently undertakes EPC projects.

As a professional company of non-ferrous metal distillation technology, we have made unremitting efforts to become the leading company in the domestic cadmium distillation industry. Up to now, we have obtained nearly 50 patents for inventions and utility models, and have successively developed indium distillation technology, high-purity zinc powder distillation technology, precious lead distillation technology, and sulfur production technology. We have excellent technical and economic indicators and are at the leading domestic level. Social benefits are significant. With the promotion of various technologies, we will make a great contribution to the society in the non-ferrous metal smelting industry, especially in the recycling of energy-saving and environmental protection resources.

At present, we have established good relations of cooperation with many domestic large-scale smelting enterprises, such as Zhuzhou Smelting Group, Shuikoushan Nonferrous Metals Group Co., Ltd., Shaanxi Zinc Nonferrous Metals Co., Ltd., Western Mining Nonferrous Metals Co., Ltd., and China Metallurgical Huludao Zinc. Industry Co., Ltd., Zijin Mining Co., Ltd., Yunnan Copper Industry Zinc Industry Co., Ltd., Mengzi Mining and Metallurgy Co., Ltd., Dongying Fangyuan Copper Industry Co., Ltd., Henan Yuguang Zinc Industry Co., Ltd., etc. The business scope covers cadmium smelting, high purity Zinc powder production, sulfur production, separation of selenium and mercury from acid sludge, EPC engineering of precious lead distillation.

Management structure:

The company employs specialized professional managers, has specialized management personnel, specialized technical teams, and specialized construction teams, relying on science and technology, providing benefits to management, and making every effort to create an elite team and create a brand of Keliwei. The goal is to become a listed company within five years, highlight brand culture, create greater benefits for society, and fully reflect its own value.