Xuqiu Sheng studied magnetized hydrocarbon oil as molybdenite flotation collectors, results showed that, after a certain field strength processing of various types of diesel and kerosene in improving their dispersion molybdenite surface, collector dosage Significantly reduced, molybdenum recovery rate has increased. This is the world's first exploration of the use of magnetized diesel to float molybdenum ore and applied for invention patents.

The floating molybdenum collector BK310 developed by the North Mine Institute is a liquid that is easily dispersed in water. It has good fluidity at low temperatures and has a higher ability to capture molybdenite than the commonly used molybdenum collector kerosene or diesel. The black drug collector has good selectivity. Flotation of a molybdenum ore in Henan with BK310. The test results show that two coarse and two sweeps and coarse concentrates are used for two selections, and two stages are re-ground after eight times of selective process. The mixed oil and BK310 are used as collectors. A flotation index of 53.83% molybdenum and a recovery rate of 90.44% was obtained.

Radushev. Aleksandr. Vasil. Evich et al. developed a novel copper molybdenum ore flotation collector, Chydrazides of Carboxylic Acid, which contains C ₇ -C ₈ . The floatation of copper-molybdenum ore with this novel collector does not require additional chemicals, and the recovery rates of copper and molybdenum are improved to varying degrees. The grade of copper-molybdenum concentrate remains at the original level.

CYTECCo and Chevron Phillips Chemical Co., two major flotation pharmaceutical companies have introduced C ₁₃ -C ₁₆ isoparaffins and ORFOM·MCO non-polar composite hydrocarbon collectors, which are excellent for molybdenum and improve molybdenum recovery. The two hydrocarbon oils have a density of from 0.8 to 0.9 g/cm ³ . Also introduced is a novel water-soluble organic inhibitor ORFOM·D8, which is composed of carboxymethyl trithiocarbonate disodium salt, which is a high-efficiency inhibitor of molybdenite flotation separation, which can replace sodium hydrosulfide, Knox Pharmacy, and sodium ferrocyanide, or in combination with the foregoing. ORFOM·D8 has a lower odor than sodium hydrosulfide and is much less toxic than other traditional inhibitors, but it is more expensive.

The molybdenite collector DY-1 developed by the Northwest Institute of Nonferrous Metals, the 3C collector tested by the Changsha Research Institute of Mining and Metallurgy and the CMD molybdenite collector developed by the Zhengzhou Institute of Minerals Comprehensive Utilization, in flotation fines Compared with the traditional molybdenite collector, the grade molybdenum ore has a strong collection performance, and the crude selection recovery rate is increased by about 1-2.5 percentage points (the crude concentrate grade is the same). Some of these collectors increase the recovery rate of molybdenum. Some collectors may be mixed collectors of non-polar collectors and xanthate collectors. DY-1 is said to be an environmentally friendly oil collector.

The agent code-named GM06 is a new molybdenum collector. Yulianxiang uses butylamine black medicine, diesel oil, kerosene and GM06 flotation-molybdenum ore. The comparison found that the GM06 collector has the best collection activity and selectivity, followed by kerosene, the third is diesel, and the worst is butylamine black. When the GM06 coarse selection is 100g/t, the sweep selection is 50g/t, the No. 2 oil is 100g/t, the kerosene coarse selection is 160g/t, the sweep selection is 80g/t, and the No. 2 oil is 100g/t. At the time, the recovery rate of GM06 rough selection is higher than the crude recovery rate of kerosene by nearly 1 percentage point. The coarse concentrate grade GM06 contains Mo 4.68% and kerosene is only 4.11%. When using the GM06 collector, the selected recovery and molybdenum concentrate grades were 99% and 45.91%, respectively.

TOML, Young, etc. use cottonseed oil containing C14-18, especially cottonseed oil of long-fiber cotton as molybdenum collector, using MIBC as a foaming agent for flotation of single molybdenum ore, and diesel as molybdenum ore. Compared with the agent, the recovery rate of molybdenum is increased by 2 to 3 percentage points. The combined use of xanthate and Decantoil mixed collector flotation copper molybdenum ore, copper and molybdenum recovery rate and grade have been improved.

HectorCorrea-Castillo et Chilean study a copper-molybdenum ore dressing plants, ore containing Cu1.10%, Mo0.02%, with lime as a modifier, in addition to using traditional copper sulphide minerals collector, the collector using ammonia (50% Fugeng, 50% propylene glycol) and diesel collector flotation, copper concentrate containing Cu29.4%, copper recovery rate of 87.5%, copper concentrate containing Mo0.4%, molybdenum recovery rate of 70.0% The molybdenum recovery rate has increased.

Wang Hui et al. developed a new collector CSU31 for molybdenum ore flotation. Tests on three molybdenum ores in Inner Mongolia, one molybdenum ore in Shanxi, two molybdenum ores in northeast and a molybdenum-copper in northeast indicate that the collector has better recovery ability and selectivity for molybdenum ore in these places than traditional kerosene. Hydrocarbon collectors such as diesel oil, such as flotation-copper-molybdenum ore, ore grinding to -0.074mm, accounting for 68%, using 32g/t kerosene, diesel, CSU31 as collector, and foaming agent 80g/t The coarse concentrate obtained after the selection contains Mo, but the coarsely selected tailings contain Mo of 0.0025% (kerosene), 0.002% (diesel), 0.0013% (CSU31), and the original ore contains Mo0.018%. The molybdenum recovery rates were 92.55% (CSU31), 88.89% (diesel), and 86.63% (kerosene), respectively. The results of several other molybdenum tests are similar. Studies have shown that CSU31 improves the recovery of molybdenum in the molybdenum ore. The main reason is that the recovery rate of -0.038mm grade molybdenum is greatly improved and the molybdenum loss is reduced.

RJT is a collector of molybdenum oxide ore. Zhao Ping uses FJT collector to float molybdenum and molybdenum ore, uses sodium carbonate and low modulus water glass to suppress gangue, rough selection at room temperature, and temperature rise (85 ° C) Selected, recovering molybdenite concentrate and molybdenum oxide concentrate from molybdenum molybdenum oxide molybdenum ore containing 0.34% Mo and oxidation rate of 68%, followed by molybdenum oxide concentrate containing Mo27.65%, total recovery of molybdenum 78 %, high temperature flotation effect is better.

缑Bright and other modified on the basis of kerosene, developed a new collector TM-8 of molybdenite, the test results show that TM-8 shows good performance in the collection of molybdenite, for Mo0. 12% of the ore is flotation, the grade of coarse concentrate is 5.19%, and the recovery rate is 99.26%, which is obviously superior to traditional kerosene and diesel.

Zhang Meige et al. developed a collector for YC hydrocarbon oil molybdenum ore flotation. Compared with traditional kerosene, YC hydrocarbon oil accounts for 98% when the temperature is >180°C, 80% when the temperature is >220°C, and 95% when the temperature of kerosene is >180°C, the temperature is >220. At °C, the fraction accounts for 1% to 5%. Carbon chain length of the hydrocarbon oil, having a viscosity of 6.0mm ² / s, ² / s viscosity kerosene larger than 1.62 mm, strong collecting capacity. When flotation of andesite and granite porphyry molybdenum ore by hydrocarbon oil, when the grade of molybdenum concentrate is similar (the grade of kerosene molybdenum concentrate is Mo52.05% and the grade of hydrocarbon oil molybdenum concentrate is Mo52.8%) The total recovery rate of molybdenum increased by 1.68 percentage points. The recovery rate of molybdenum ore and low-poor molybdenum ore treated in the fracture zone increased by more than 10 percentage points. The results of sieve analysis showed that when the hydrocarbon oil was used as the molybdenite collector, the recovery rate of the +0.192 mm coarse fraction was 17.32 percentage points higher under the similar conditions of the collector (YC hydrocarbon oil dosage was 165 g/t). The use of YC hydrocarbon oil collector provides a strong theoretical support for coarse grinding of molybdenum ore and re-grinding of coarse concentrate.

2 foaming agent

The foaming agent also affects the floatability of the molybdenite. Especially when the ore contains a large amount of clay minerals, the choice of foaming agent is particularly important. For example, molybdenum ore or copper-molybdenum ore containing a certain amount of kaolin , montmorillonite, illite, talc , chlorite and chlorite. These clay mineral particles are very fine and larger than the surface, and the isoelectric point of kaolin is pH< 3, the surface of such minerals is negatively charged, while the prismatic parts are mostly neutral, easy to agglomerate or flocculate, the consumption of chemicals is large, the foam mineralization is poor, the foam is dry, and the selectivity of molybdenite flotation is often reduced. The recovery rate of molybdenum is low.

Domestically selected molybdenum plants and copper and molybdenum plants often use pine oil. Some factories also use white camphor oil and other foaming agents with no catching performance and good foaming performance. Foreign selected molybdenum plants and float copper molybdenum plants mostly use MIBC (methyl isobutyl methanol), DOW-250 foaming agent and MIBC + pine oil. Studies have shown that when the molybdenum ore contains 10% (mass fraction) or more of clay minerals, a new foaming agent HP-700 is used. The HP-700 foaming agent contains a modified amine trialkoxypropyl trioxane. This foaming agent can be used in a wide range of pH.

A-200 foaming agent is an alcohol foaming agent produced by Shandong Anqiu Mineral Processing Pharmacy. It is a brown oily liquid with a density of 0.53g/cm ³ , an effective alcohol content of more than 70%, strong foaming ability and foaming speed. Fast, brittle, easy to decompose than pine oil, is conducive to environmental protection. Float molybdenum ore was floated with A-200. Under the same conditions, the A-200 dosage was 49g/t. The result of rough selection was better than the foaming agent 61g/t used in the field. The comparison of closed-circuit indicators showed: concentrate The molybdenum grade increased by 1.68%.

BK-205 is a kind of raw materials for petrochemical products by chemical processing of oily liquid, a yellow to dark brown, slightly soluble in water, soluble in alcohol and other organic solvents, a density of 0.84 ~ 0.87g / cm ^3, The foaming speed is fast, the foaming ability is strong, the collecting power is weak, the retardation is poor, the product performance is stable, the raw material source is wide, the price is low, BK205 is extremely low in toxicity, and is easily decomposed than the pine oil.

In Shizhuyuan Molybdenum ore flotation, with pine oil as a foaming agent, foam viscosity, poor selectivity, easily lead to bubble entrainment, resulting in low grade ore, but also to the subsequent sorting floating tungsten problematic. The use of BK-205 as a foaming agent has no disadvantages of the above-mentioned pine oil, and significantly improves the molybdenum and rhodium flotation index. After using BK-205, the recovery rate of molybdenum increased by 1.53%, the recovery rate of antimony concentrate increased by 0.79%, and the recovery rate of tungsten concentrate increased by 0.72%.

JM-208 is a new type of foaming agent specially used for molybdenum selection. Its biggest feature is the emulsification of hydrocarbon oil, which can be used to improve the dispersion ability of hydrocarbon oil in pulp and more effectively improve the molybdenum technical index. JM-208 conducted industrial tests at the Baihua Concentrator in August-November 2008. The results showed that under the same conditions, the molybdenum recovery rate was increased by 1%, and at the same time, the problem of tackiness in the selected molybdenum selection section was effectively solved. And reduce the amount of molybdenum collector.

3 inhibitor

Guo Lingmin et al. prepared a new inhibitor of copper-molybdenum ore, HXM, which is equivalent to Na ₂ S in the separation process of Dexing Copper-Molybdenum Mine. The molybdenum concentrate has a molybdenum grade of 48.86% and a copper content of 1.64%. Concentrate, which can effectively reduce the cost of pharmaceuticals by 30% compared to the Na ₂ S process.

The new inhibitor BK510 can obtain good copper-molybdenum separation index in low-grade alkalinity (pH=8～9) in a low-grade porphyry copper-molybdenum ore flotation, which is the low consumption of copper-molybdenum separation and copper-activated molybdenum. Highly effective inhibitors. Some researchers have studied a copper-free high-efficiency copper-molybdenum separation copper inhibitor T17, which can effectively achieve the low-grade copper-molybdenum separation when using copper-molybdenum ore flotation, and obtain a good selection index. It has been reported that the organic inhibitor pseudohydantothiourea (PGA) is used as a copper-molybdenum separation inhibitor, which has a strong inhibitory effect on chalcopyrite in a small amount.

The combined inhibitors YF851 and YF212 were used to suppress the separation of copper-molybdenum ore. The good experimental indexes were obtained: the molybdenum concentrate grade was 49.91%, the molybdenum recovery rate was 84.45%, and the copper concentrate grade was 32.90%. The copper recovery rate was 32.90%. It is 99.98%. The combined inhibitor WL composed of several organic and inorganic agents can obtain molybdenum concentrate containing 52.68% molybdenum, recovery rate of 89.31% and copper concentrate grade 19.69% in the separation process of a skarn type copper-molybdenum ore in Tibet. The recovery rate of 92.50% makes the copper and molybdenum reach a good separation.

Dong Yuzhen used a better selective FT agent for a talc-type molybdenum ore to preferentially float talc and other easily floating gangue minerals, and then selected molybdenum. The molybdenum coarse concentrate was re-grinded and selected 8 times to obtain a molybdenum concentrate grade of 45.54. %, the recovery rate of 82.29% of the indicator.

Kelebek.S et al. used sodium lignosulfonate and low foaming foamer methyl isobutyl alcohol to separate talc and molybdenite at pH=7.2, due to sodium lignosulfonate on molybdenite and talc surface. The adsorption difference is so great that it can be effectively separated.

Richard.O.Huch uses a water-soluble weak acid alkaline salt and a water-soluble strong acid salt inhibitor such as water glass and zinc sulfate to well separate molybdenite and talc. Another scheme uses zinc sulphate and caustic soda, and sodium ferricyanide to separate molybdenum ore and talc at pH=8.2. When the coarse concentrate contains Mo4.13%, the molybdenum concentrate contains Mo19 after flotation. 9%, tailings contain Mo0.23%, molybdenum recovery rate of 95.5%, more than 90% of talc is inhibited in tailings. The technical requirements require that, in addition to the inhibitor, the contact time of the inhibitor with the slurry is about 30 minutes, and the concentration of the flotation ore slurry is about 5%. The test was carried out without inhibitors, and the molybdenum concentrate contained Mo4.73%, and the molybdenum was hardly enriched.

Air Suspension Shock for BMW

Car Air Suspension Parts For BMW X5 E53 37116757501 Rear Left Air Suspension Shock

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37116757501

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Product Description

Product Description

Item	Auto parts Air Suspension Shock Absorber
Application	for BMW X5 E53
Warranty	12 months
OEM	37116757501
Brand	Jovoll
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