The production of titanium sponge industry,Kroll Process

The reduction reaction is completed in a Klau Apha reactor made of steel in. About 50% of magnesium and magnesium chloride containing the reduction product, three kinds of methods available vacuum distillation, purification of helium gas and wet purification treatment reduction product, made of titanium sponge weight or grain.

  Three purification process of reduction products are broken system to adapt with it, cooperate with each method made size to meet the requirements of the commercial titanium sponge.

  At the beginning of the 90's, have been useful to replace his potential of vacuum distillation method. In the reduction process, a by-product of anhydrous magnesium chloride and sent to the recycling of magnesium electrolysis workshop, magnesium and chlorine.

The production of titanium sponge industry,Hunt's method

The main process , Huntfa crude sodium metal with filter screen or a filter for fine purification method of sodium. In the reactor, with a fine four fine titanium chloride sodium reduction, the reduction product after removing, crushing, pickling and drying products made from titanium sponge.

  A method of a segment and a two segment sodium reduction, a method is complete reduction work in a reactor, the two segment method is complete reduction reaction in two reactors, in the first reactor reduced to low valence titanium compound, add sodium in a second reactor, complete to restore the whole process after sintering, the finished product of titanium sponge production.

Method for producing of four titanium chloride

The production method and the process of the selection in twentieth Century 80 time end stop, industrial production of  titanium sponge in two ways, namely by Kroll and Hunter method.

  Followed by the metal magnesium and sodium reduction four titanium chloride. Method for producing fine four titanium chloride two are the same.

The last century of titanium sponge plant expansion

In twentieth Century 60, titanium sponge factory of China built the largest, started for 1000t / A. And the initial size of titanium sponge plant in the west between 300 ~ 5000t / A, the former Soviet Union is 3000 ~ 10000t / A.

  Characteristics of titanium metal construction investment, the market more volatile and high production cost based, after 60 years, some foreign titanium sponge factory basically rely on technological innovation, and gradually expanded to the annual production capacity of more than 10000 tons of dachang.


  Chinese was completed in 1990 large-scale titanium sponge plant expansion, the expansion of the annual production capacity is 2000t. Design to determine the size of Xinhai titanium sponge factory, to adapt to the basic industrial technology level and market demand.

The Chinese and USA titanium sponge plant

Product scheme and design of the scale Chinese design of titanium sponge factory or workshop, the final product is only one kind of  titanium sponge.

  Titanium sponge plant in Japan and the former Soviet Union is also designed with ingot casting workshop, using the consumable electrode and non consumable electrode melting titanium ingots, titanium sponge production will account for 6% ~ 8% of titanium added to substandard titanium ingot, in order to improve the economic benefit.

  Titanium mill products in more than two, titanium sponge factory USA many and processing plant design as a whole, the main products for the multi specifications, many varieties of titanium material.

Chinese first titanium sponge plant

In twentieth Century 60, Chinese scientific research - float valve tower, used for titanium sponge factory, instead of packing tower equipment is huge and low efficiency; Chinese developed circular molten salt chlorinator, titanium slag effectively deal with Gao Gaimei content.

  In 70's, China initiated chlorination furnace titanium chloride slag by fluid production technology, has designed a variety of furnace type for the chlorination of  titanium slag. The 1964 design Chinese first titanium sponge factory - Zunyi titanium  plant, put into operation in 1970.

Titanium sponge factory 's development

In 1958 Chinese first design built Fushun aluminum titanium sponge test workshop. In addition, but also has built second Shanghai smelter titanium iron alloy factory workshop and Jinzhou titanium plant.

  In twentieth Century 60, China scientific research - float valve tower, used for titanium sponge factory, instead of packing tower equipment is huge and low efficiency; China developed circular molten salt chlorinator, titanium slag effectively deal with Gao Gaimei content.

  In the 70's, Chinese initiated chlorination furnace titanium chloride slag by fluid production technology, has designed a variety of furnace type for the chlorination of titanium slag. The 1964 design China first titanium sponge factory - Zunyi titanium plant, put into operation in 1970.

U combined technology and titanium sponge factory

Jane Li in 1948, America DuPont Co (E.I.Dupont Corp) first output 2T industrial titanium sponge, to twentieth Century 50 years, US and UK, Japan and the Soviet Union were designed and built titanium sponge factory. Initial production, use Clower (Kroll) method for smelting titanium, intermittent production.

  Twentieth Century at the end of 60's to 70's, we have developed semi joint and combined Kroll Process improvement process, the former Soviet Union began, the latter from japan.

  In 80s, the shape of inverted U combined technology has been widely used in various Japanese titanium sponge factory.

Titanium sponge plant design

Titanium concentrate as raw material through chlorination process output, intermediate products -- four fine titanium chloride, and magnesium metal reduction method for producing titanium sponge and rare metal smelting factory design.

  The design scope includes: iron rich material workshop design, rich design, titanium chloride workshop four ferric chloride refining workshop design and titanium sponge reduction distillation workshop factory design. Titanium industry in western countries, the use of natural rutile (95% ~ 98%TiO2), artificial rutile titanium concentrate production high grade four titanium chloride.

  Chinese and Soviet natural rutile resources are limited, usually set of titanium slag in titanium sponge factory workshop.
 
  Titanium iron ore production TiO2 content is 80% ~ 94% of the titanium slag as the raw material of  chloride workshop.