Shenzhen Sunxing Light Alloys Materials Co., Ltd.

Shenzhen Yandai Investment Co., Ltd

Sun Xing Chemical & Metallurgical Materials (shenzhen) Co., Ltd.

Xuemin Chen

Bin Li

Jun Yang

Qingdong Ye

Yueming Yu

Zhi Zhou

Jianguo Li

Zhihong Li

Weiping Wu

Chaowen Liu

Shiming Wei

Liping Hu

Ming Yin

Xinyi Chen

Sihai Zhou

Jin Chen

Yao Chen

Yanjun Li

Hexi Zeng

Ronald Ray Duckworth

Qingchao Wang

Yuanye Su

Guan Mo

Mei Liang

Fengji Chen

Jimin Yuan

Chunming He

Zhe Fang

Zhi Xhou

Saiyi Li

Xinming Zhang

Fengqin Niu

This invention pertains to the field of plant extraction and separation technology, and provides a polysaccharide compound with a defined molecular structure that possesses antitumor efficacy. The polysaccharide compound is intended for the treatment of advanced cancer patients (those who are no longer candidates for surgery, have a life expectancy of only three to six months, and are still eligible for chemotherapy). The molecular formula is: (CHO). The active ingredient, polysaccharide, is obtained through the extraction of effective components fromunder high temperature and high pressure. The polysaccharide with this active ingredient, characterized by its water solubility, is readily absorbed by the human body, offers antitumor effects, and has proven efficacy in the prevention of tumor development in humans.

Polysaccharide compound with a defined molecular structure that can eliminate the toxic side effects of chemotherapy drugs

Disclosed are a silicon-aluminum alloy and its preparation method. The method comprises: adding aluminum metal or molten aluminum into a container, wherein the temperature of the molten aluminum is between 700° C. and 800° C.; adding a semi-metallic silicon raw material to the molten aluminum, closing a furnace cover, carrying out vacuumization, and introducing argon, to ensure that the interior of a magnetic induction furnace is in a positive-pressure state, and stirring the aluminum metal or molten aluminum with a graphite stirring head; powering on and heating so that the aluminum metal or molten aluminum is heated to 1000° C. or above and molten, and holding the temperature between 1000° C. and 1500° C.; and after alloying is completed, cooling the molten aluminum to 1000° C. or below, opening the furnace cover, pouring the silicon-aluminum alloy into a corresponding mold, and cooling for molding.

Silicon-aluminum alloy and preparation method therefor

The disclosure provides a method for preparing an electrolyte and an electrolyte replenishment system during an electrolytic process. The method includes the following steps: Step A: placing aluminum in a reactor, vacuumizing the reactor and feeding an inert gas, heating the reactor to 700-850 degrees centigrade, and adding one or more of potassium fluozirconate, potassium fluoborate, sodium hexafluorozirconate and sodium fluoroborate; and Step B: stirring the reactants for 4-6 hours and extracting the upper molten liquid to obtain an electrolyte replenishment system during an aluminum electrolysis process. The disclosure has the following beneficial effects: when used in the aluminum electrolysis industry, the electrolyte system provided herein can be directly used as an aluminum electrolyte or a replenishment system in an electrolyte without changing existing electrolysis technology to significantly reduce an electrolysis temperature during an aluminum electrolysis process.

Method for preparing an electrolyte and an electrolyte replenishment system during aluminum electrolysis process

The invention provides a potassium cryolite for aluminum electrolysis industry, which has a molecular formula: mKF.AlF, wherein m is from 1 to 1.5. The low-molecular-ratio potassium cryolite (mKF.AlF, and m is from 1 to 1.5) provided by the invention is used for aluminum electrolysis industry, and can improve the dissolvability of aluminum oxide, thus reducing the temperature of electrolysis and the consumption of power, raising the efficiency of electrolysis and lowering the comprehensive production cost.

Potassium cryolite for aluminum electrolysis industry and preparation method thereof

The present invention pertains to the field of metal alloy, and discloses an aluminum-zirconium-titanium-carbon grain refiner for magnesium and magnesium alloys, having a chemical composition of: 0.01%&#x2dc;10% Zr, 0.01%&#x2dc;10% Ti, 0.01%&#x2dc;0.3% C, and Al in balance, based on weight percentage. Also, the present invention discloses the method for preparing the grain refiner. The grain refiner according to the present invention is an Al&#x2014;Zr&#x2014;Ti&#x2014;C intermediate alloy having great nucleation ability and in turn excellent grain refining performance for magnesium and magnesium alloys, and is industrially applicable in the casting and rolling of magnesium and magnesium alloy profiles, enabling the wide use of magnesium in industries.

Aluminum-zirconium-titanium-carbon grain refiner and method for producing the same

The present invention pertains to the field of metal alloy, and relates a grain refiner for magnesium and magnesium alloys, which is an aluminum-zirconium-carbon (Al&#x2014;Zr&#x2014;C) intermediate alloy, having a chemical composition of: 0.01%&#x2dc;10% Zr, 0.01%&#x2dc;0.3% C, and Al in balance, based on weight percentage. Also, the present invention discloses the method for preparing the grain refiner. The grain refiner according to the present invention is an intermediate alloy having great nucleation ability and in turn excellent grain refining performance for magnesium and magnesium alloys, and is industrially applicable in the casting and rolling of magnesium and magnesium alloy profiles, enabling the wide use of magnesium in industries.

Grain refiner for magnesium and magnesium alloys and method for producing the same

A method for preparing zirconium boride and synchronously preparing a cryolite is provided which includes the following steps: Step A: placing aluminum in a reactor, heating the reactor to 700-850 degrees centigrade, and adding the mixture of fluorozirconate and fluoborate; and Step B: stirring the reactants for 4-6 hours and extracting the upper molten liquid to obtain a cryolite, wherein the lower substance is zirconium boride. The disclosure has the following beneficial effects: the new zirconium boride preparation method provided herein is simple in preparation flow and the device used, short in preparation period and high in reaction efficiency, the prepared zirconium boride with many contact angles has a large specific surface area and contains a controllable amount of aluminum.

Method for preparing zirconium boride and synchronously preparing cryolite

The invention provides a Potassium Fluotitanate (KTIF6) manufacture process. The Potassium Fluotitanate (KTIF6) manufacture process includes steps: A. providing titanium ferrum powder to a reaction furnace and adding HF and peroxide solution to react with the titanium ferrum powder sufficiently to manufacture HTiF, B. filtrating the sufficiently mixed solution of step A and adding it to another reaction furnace, and then after the HTiFcools off, adding Potassium Chloride (KCl) solution to react with the mixed solution to manufacture Potassium Fluotitanate (KTiF); C. adding KCOsolution to the remaining solution of step B and react with the remaining solution and controlling the pH value, the element Fe is recycled by a form of Fe(OH)flocculent precipitate and the Potassium Chloride (KCl) and KF solution are recycled. This invention has these advantages: adding peroxide to the titanium ferrum powder can oxidize Feinto Feand adding KCOsolution to clean element Fe out by a form of Fe(OH)flocculent precipitate, and the hydrofluoric acid (HF) can be recycled which can realize the HF zero polluting discharge.

Potassium fluotitanate manufacture and device background

The disclosure provides low-molecular-ratio cryolite for aluminum electrolytic industry, which consists of potassium cryolite and sodium cryolite with a mole ratio of 1:1&#x2dc;1:3, wherein the molecular formula of the potassium cryolite is mKF.AlFand the molecular formula of the sodium cryolite is nNaF.AlF, where m=1&#x2dc;1.5 and n=1&#x2dc;1.5. When the low-molecular-ratio cryolite provided by the disclosure is applied to the aluminum electrolytic industry, electrolytic temperature and power consumption can be reduced and electrolytic efficiency is improved.

Low-molecular-ratio cryolite for aluminium electrolytic industry and method for preparing the same

The present invention provides a sealing ring and a preparation method thereof. The sealing ring, based on percent by weight, includes 80%-85% of aluminum, 10%-15% of titanium, 0.1%-1% of scrap iron, and 4%-4.9% of potassium fluoroaluminate. Moreover, the present invention provides a method for preparing sealing ring, which includes the following steps: Step A: melting the aluminum in a medium-frequency induction furnace, adding the potassium fluoroaluminate to the medium-frequency induction furnace after melting the aluminum, melting and stirring the mixture evenly; Step B: adding titanium scrap or sponge titanium, and scrap iron to the mixture successively, melting and mixing the mixture totally at 800&#xb0; C. to 1200&#xb0; C., standing the mixture after stirring evenly; Step C: removing scum on the surface; Step D: casting into a mold to obtain a final sealing ring.

Sealing ring and preparation method thereof

The disclosure provides an electrolyte supplement system in an aluminum electrolysis process, which includes low-molecular-ratio cryolite, wherein the low-molecular-ratio cryolite is selected from mKF.AlF, nNaF.AlFor mixture thereof, where m=1&#x2dc;1.5 and n=1&#x2dc;1.5. When the electrolyte supplement system provided by the disclosure is applied to the aluminum electrolytic industry, electrolytic temperature can be reduced obviously in the aluminum electrolysis process without changing the existing electrolytic process; thus, power consumption is reduced, volatilization loss of fluoride is reduced and the comprehensive cost of production is reduced.

Electrolyte supplement system in aluminium electrolysis process and method for preparing the same

A method for preparing an aluminum-zirconium-boron alloy and synchronously preparing a cryolite is provided. The method includes the following steps: Step A: placing aluminum in a reactor, heating the reactor to 700-850 degrees centigrade, and adding a mixture consisting of fluorozirconate and fluoborate in a molar ratio of x: y into the reactor; Step B: stirring the reactants for 4-6 hours and extracting the upper molten liquid to obtain a cryolite, wherein the lower substance is an aluminum-zirconium-boron alloy, and aluminum is added in an excess amount. The method provided herein for preparing an aluminum-zirconium-boron alloy which is mild in reaction condition, easy to control and simple in technical flow can prepare a high-quality product through a complete reaction, besides, the use of the synchronously prepared low molecular ratio cryolites (KF.AlFand NaF.AlF) in the aluminum electrolysis industry can achieve a proper electrical conductivity.

Method for preparing aluminum-zirconium-boron alloy and synchronously preparing crylite

The invention provides a preparation process of transition metal boride, comprising the following steps: A) aluminum is put in a reactor, inert gas is fed into the reactor after evacuation, the reactor is heated up to 700 to 800&#xb0; C. and then added with dry potassium fluoborate or sodium fluoborate, monomer boron and cryolite are generated by rapid stirring and reaction for 4 to 6 hours, and the molten liquid at the upper layer is sucked out and the monomer boron is obtained by means of separation; and B) the obtained monomer boron is added with transition metal for reaction at the temperature from 1800 to 2200&#xb0; C. in order to generate corresponding transition metal boride.

Preparation process of transition metal boride and uses thereof

The present invention provides a zero pollution recovery system for safely producing anhydrous fluorine hydride, comprising: a compartment, a reactor for producing fluorine hydride, and a water pool; the reactor is disposed in the compartment; the water pool is disposed at the bottom of the compartment; absorption hoods are respectively disposed above both ends of the reactor for absorbing fluorine hydride gas; at least two absorption towers mutually connected in series via pipes are disposed above the compartment; water pipes connected with the water pool are respectively disposed at the top and bottom of the absorption tower; and a cooler and a receiver connected with the water pool is disposed on the pipes. The present invention has the advantages of being able to control the range over which fluorine hydride can diffuse.

Zero pollution recovery system for safely producing anhydrous fluorine hydride

The present invention provides a piece of distillation equipment for producing sponge titanium, which includes a heating furnace and a reactor for containing a condensate, wherein a heating furnace cover is arranged above the heating furnace, a reactor cover is arranged above the reactor, the heating furnace cover is connected with the reactor cover by a pipe, a resistance wire is arranged on the pipe, each lifting device is arranged above the heating furnace cover and the reactor cover, a vacuum-pumping pipe is arranged above a heater cover, and a first metal sealing ring is arranged between the reactor cover and the reactor. The present invention has the beneficial effects that the distillation equipment can ensure normal production, and effectively ensure the quality of sponge titanium product. The problem of distillation tube blockage is solved by adopting a metal gasket.

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Guangdong, China

Xuemin Chen