4387 results about "Grease" patented technology

The present invention discloses an improved food-grade-lubricant useful as hydraulic oil, circulating oil, drip oil, general purpose oil, grease base oil, cable oil, chain oil, spindle oil, gear oil, and compressor oil for equipment in the food service industry. The lubricant comprises at least one vegetable oil, at least one polyalphaolefin, and at least one antioxidant. The lubricant has improved properties when subjected to thermal and mechanical stress.

The invention relates to nano calcium carbonate-containing calcium sulfonate complex grease and a production method thereof. The grease comprises the following components in percentage by weight: 10 to 40 percent of high base-value calcium alkylbenzenesulfonate, 50 to 85 percent of base oil, 1 to 10 percent of nano calcium carbonate, 0.5 to 5 percent of boric acid, 0.5 to 5 percent of saturated fatty acid with 12 to 22 carbon atoms, 0.1 to 5 percent of anti-oxidant additive and 1 to 5 percent of composite transformation accelerator HBS. The grease and the production method have the advantages that: a nano calcium carbonate material is added into the formula of the calcium sulfonate complex grease for the first time, so that the thermal stability and extreme pressure wearing resistance of the ordinary calcium sulfonate complex grease are enhanced and a preparation and operation process is simplified. Simultaneously, the composite transformation accelerator is adopted, so that transformation speed and transformation rate are increased and production cost is lowered.

The invention discloses a restaurant-kitchen garbage sorting system. The system orderly comprises a scrubbing oil groove for separating grease from residues, a bag breaking conveyor for tearing a plastic package and a drum screening machine for screening the residues into coarse material and fine material, and a coarse material outlet and a fine material outlet are arranged on the drum screening machine, a coarse material spiral conveyor and a fine material spiral conveyor are respectively arranged corresponding to the coarse material outlet and the fine material outlet, a crusher is arranged at an outlet of the coarse material spiral conveyor, a pulping machine is arranged at an outlet of the fine material spiral conveyor, and a horizontal flow pool for dividing the pulp from the crusher and the pulping machine into light material and heavy material. Therefore, the restaurant-kitchen garbage sorting system can effectively treat the bagged garage without manual operation, and improve the garage processing efficiency; and the garage can be classified so as to be convenient for recycle.

The present invention relates to one kind of composite calcium-base lubricating grease, which consists of base oil in 68-95 wt%, composite calcium-base thickener 4-30 wt% and titania 0.1-8 wt%, and the titania in the lubricant grease is preferably nanometer level particles. The present invention also provides three kinds of preparation process of the lubricant grease. The composite calcium-base lubricating grease of the present invention has the features of high oxidation stability, small surface hardening value change, high dropping point and high extreme pressure wear resistance, and may be used for lubricating at relatively high temperature and humidity condition and heavy load.

An environmentally friendly grease composition is provided comprising (a) a vegetable oil and (b) a cellulose fiber. The grease may further comprise glycerin; a rust inhibitor; and/or a fatty acid ester, lecithin, phosphatidyl choline, or a combination thereof.

The invention relates to a method for preparing calcium sulfonate with high base number. In the method, alkyl benzene sulfonic acid and/or petroleum sulfonic acid serve as raw materials, low molecular alcohol serves as accelerating agent, calcium oxide and/or calcium hydroxide serve as calcifying agent; firstly, neutralization reaction is carried out to generate calcium sulfonate; then carbonation reaction is carried out for twice, post-treating agent is added for reaction; finally, alcohol, water, solvent and solid residue are removed to obtain the calcium sulfonate with high base number. The product of the invention is especially suitable for preparing lubricating grease, can shorten conversion time of calcium sulfonate crystal form, improve high-temperature bproperty and anti-moisture performance of the lubricating grease and satisfy the demands of high-performance lubricating grease.

The invention belongs to the field of lubricant and preparation methods thereof, particularly relates to a solid-liquid phase composite lubricating grease and a preparation method thereof. According to the theory of solid-liquid phase composite lubrication technology, and aimed at the requirements of a bearing on lubrication in different application cases and operating temperature ranges, the invention provides a technical scheme for the solid-liquid phase composite lubricating grease composition and the preparation method thereof. The components of the additive include solid-liquid phase composite additive, base oil and more than two types of mono-soap greases and composite soap greases, which are prepared into the solid-liquid phase composite lubricating grease with a uniform dispersion system by shearing dispersion. The solid-liquid phase composite lubricating grease produced by the invention can enhance and improve the structure form of the common lubricating grease, in the aspects of use temperature, lubricating mode and lubricating effect, during a lubrication process from an initial stage below 60DEG C, to a later stage of a mesotherm 60-120 DEG C, a high temperature 80-180 DEG C till an extra-high temperature more than 350 DEG C, each effective component in the solid-liquid phase composite lubricating grease plays respective lubrication action in different lubrication temperature stages, realizes zero blind spot lubrication in each lubrication temperature stage, obtains the effects of decreasing friction, reducing attrition, saving energy, protecting and prolonging the device use lift, and opens a new path for saving energy.

A grease composition comprising at least one polymer having a mesogen structure in the principal chain or in the side chain(s) thereof, and at least one viscous agent is disclosed. A viscous agent which is a discotic compound having, in the molecule thereof, a discotic core and three or more side chain groups radially extended from said discotic core is also disclosed. The discotic core and/or said side chain groups has at least one tautomeric group therein, and at least one side chain group of said three or more side chains has, at the end portion thereof, a long chain group in which 20 or more atoms selected from the group consisting of oxygen, carbon, nitrogen, silicon and sulfur atoms are linked in a straight-chain-like manner or in a branched manner.

The invention discloses a method for the treatment of waste emulsion, more particularly a method for the treatment of waste emulsion generated in the machining processes such as cutting, grinding and the like. The method comprises the following steps: separation of stored emulsion breakers, mechanical air flotation, ion-carbon electrolysis, coagulating sedimentation, oil separation with inclined plate, microorganism purification, sedimentation, sand filtering, etc.; the method has the advantages of simple technology and standard-reaching wastewater, and devices for the implementation of the method have small floor area, little investment, low running cost, low energy consumption, maximal recycling of waste oil resource and prominent operability and is widely suitable for machining and the treatment of waste emulsion in other industries. The waste oil recycled according to the method is completely capable of being used for the production of patented product, the protective grease, thus idealized application of resources is achieved.

The invention discloses a preparation method and an application of environment-friendly type shield tail sealing grease. The shield tail sealing grease mainly comprises the following components: 14-30% of lubricating oil, 7-22% of oil plasticizer, 3-15% of thickening agent, 3-12% of lubricating grease, 3-8% of natural degradable fiber, 35-60% of filling granular material, 1-3% of coloring agent and 0.1-2% of preservative. The environment-friendly type shield tail sealing grease prepared by using the method is used for sealing a shield tail of a shield tunneling machine in tunnel engineering, and has the advantages of good water pressure sealing performance, excellent pumping performance, high adhesivity, good lubrication, stable properties, no corrosion, antioxidation, wide raw material resources, environment-friendliness and simple preparation process.

The invention relates to an ester type fire-resistant hydraulic fluid. The hydraulic fluid comprises the following raw materials by weight percent: 95-99% of base oil, 1.0-5.0% of diphenol propane, 0.005% of dimethylsilicone fluid or dimethylsilicone grease, 0.05% of tricresyl phosphate, 0.1% of benzotriazole, 100 parts per million (PPM) demulsifying agent T1001 or LZ5957 and 0.2-0.3% of triazole derivative, thiadiazole derivative, N-salicylidene ethylamine, N, N'-bis(salicylidene)ethylenediamine, N, N'-bis(salicylidene)propylene diamine or ethylenediamine tetraacetic acid. A preparation method of the ester type fire-resistant hydraulic fluid comprises the following steps of sufficiently and evenly stirring various materials at room temperature according to a formula, and then filtering. The ester type fire-resistant hydraulic fluid has the beneficial effects that the high temperature use performance of the product is greatly improved, the service life of a hydraulic system and the oil changing period of oils are prolonged, and the ester type fire-resistant hydraulic fluid has a good flame-retardant effect and is safe to use. The preparation method has the advantages that operation is convenient, technology and equipment are simple, energy consumption is low, cost is low, and the like.

A grease composition containing: (a) the reaction product of: (i) a calcium containing overbased organic acid; and (ii) at least one acid producing compound or derivatives thereof selected from the group consisting of: (1) a non-polymeric hydrocarbyl substituted dicarbonyl derivative selected from the group consisting of an acid, an ester, a salt, an anhydride, ester-acid, acid-salt and mixtures thereof; (2) a copolymer derived from monomers containing (1) an olefin; and (2) an unsaturated dicarboxylic acid anhydride or derivatives thereof; and (3) an inorganic acid containing about 2 or more acidic hydrogens; and (b) an oil of lubricating viscosity, wherein the overbased calcium sulphonate contains colloidally dispersed calcium carbonate is selected from the group consisting of calcite, vaterite and mixtures thereof. The invention further relates to the process to make the composition and its use in greases to increase water resistance.

The invention relates to a polyurea lubricating grease composition. The lubricating grease composition contains 72 to 95 weight percent of base oil and 5 to 28 weight percent, preferably 7 to 20 weight percent of diurea thickening agent; and the diurea thickening agent is prepared by reaction of monoamine and diisocyanate, the monoamine is a mixture of fatty amine and aromatic amine, and the molar ratio of the fatty amine to the aromatic amine is 5:1-1:5. The lubricating grease composition is polyurea lubricating grease, and has excellent high temperature resistance; and the lubricating grease composition has the characteristics that: the penetration value of the composition after being baked at a high temperature for long time is changed little compared with the composition baked at room temperature, namely the consistency of the composition is changed little, and the composition does not obviously become hard to affect the lubricating effect or become soft to cause high-temperature loss. The room-temperature and high-temperature penetration changes of the lubricating grease composition and the common high-temperature lubricating grease are shown as a table 1, and the constant temperature time of the lubricating grease composition at the high temperature is 24 hours.

The invention relates to a method for digesting grease through microwave pretreatment and an aqueous enzymatic method. The method includes soaking raw materials, performing microwave puffing treatment on camellia oleifera seed slurry, digesting grease with water, performing physical refining on the obtained grease after degumming through a phosphatidase enzymatic method, or directly performing rough filtration, refined filtration and nanofiltration, and then performing vacuum dehydration and drying to obtain grease products and a by-product of wet meal. According to the method, the microwave puffing treatment is adopted on raw materials such as camellia oleifera seeds, cell structures of the raw materials can be fully destroyed, and the oil yield of the following water immersion method can be improved; grease digestion through water after microwave pretreatment for materials belongs to an environment-friendly and safe production process; and the method has the advantages of being simple and environment-friendly in process, high in oil yield, low in investment and prone to industrial production.

The invention discloses ultra-low thermal-resistance heat-conducing silicon grease. The silicon grease is prepared by the following raw materials according to parts by weight: 100 parts of polydimethylsiloxane, 10-40 parts of polyphenylmethylsiloxane, 1000-2600 parts of aluminum oxide, 20-60 parts of zinc oxide and 1-10 parts of a coupling agent. Furthermore, the invention discloses a preparation method of the ultra-low thermal resistant heat-conducing silicon grease. The heat-conducting silicon grease has the following advantages that the silicon grease has a high heat-conducting coefficient and ultra-low contact thermal resistance, and the contact thermal resistance is lower than 0.06K.cm<2>/W (pressure 40psi); and the silicon grease is stable to store at room temperature, free from oil seepage, good in high-temperature resistance, free from drying after long-time use at high temperature, and excellent in both electric insulating and dielectric performances.

The invention discloses a high acid-value grease depickling novel technology. The technology of the invention applies advanced molecular distillation technique to high acid-value grease depickling and can separate the grease from the fatty acid better on the basis of not damaging the original compositions of the raw material so as to reduce the oil acid-value; furthermore, the depickling effect can be improved by multi-stage serial connection and the continuous operation can be carried out. The acidified oil is dehydrated by fine filtration, saturated NaCl water washing and film braising and is pumped into a first-stage molecular distiller by a first-stage delivery pump so as to distil part of fatty acid; the distilled residue in the first-stage is taken as the raw material of the second-stage molecular distiller and pumped into the second-stage molecular distiller by a second-stage delivery pump so as to distil the residual fatty acid; the distilled residue is taken as the raw material of the third-stage; the circulation is repeatedly to the required N-stage; wherein, N is more than or equal to 2 and less than or equal to 5; the best stage number is 3 or 2. The technology of the invention has the advantages that the fatty acid is separated; meanwhile, the raw material composition of the grease is not damaged; the distilled high-quality fatty acid has extremely high application value by the further disposal; furthermore, multi-stage molecular distilling is beneficial to the continuous operation so as to complement the shortages of single-stage separation capability, thus providing beneficial conditions for the industrialization in large scale.

The invention provides a fluoro-free extreme-pressure microemulsion cutting liquid, whose constituents by weight percentage include water 20-40, mixed alkylolamide 6-12, boracic acid 2-6, sulfonates rust-preventing agent 8-12, auxiliary agent 1-5%, anionic surface active agent 8-12, polybasic alcohol 2-6, sulfurized grease 4-10, mineral oil 15-30, benzotrizaole 0.1-0.3. The invention also provides a process for preparing the liquid.

The invention relates a grease emulsification device, and specifically discloses a batch-type high shear emulsifying machine. The batch-type high shear emulsifying machine comprises a barrel-shaped tank body, wherein a motor is arranged above the tank body, the motor drives an emulsifier in the tank body, the tank body is internally provided with a built-in guide inner barrel, the top of the inner barrel is sealed, and an upper part bucket wall is uniformly provided with multiple guide holes; the bottom barrel port of the guide inner barrel is fixedly provided with an emulsifying cutting net, the middle of the guide inner barrel is provided with a stirring shaft, and the stirring shaft is connected with the motor arranged above the tank body through a coupler; and a free end of the stirring shaft is provided with stirring paddles. According to the batch-type high shear emulsifying machine provided by the invention, the stirring shaft is arranged in the inner barrel, the bottom barrel port of the inner barrel is fixedly provided with the emulsifying cutting net so that a solution can refine an emulsion solution when passing through the cutting net, the emulsification effect is high, meanwhile, the emulsification ratio is high, and the batch-type high shear emulsifying machine has a good use value.

The use of bismuth-compounds in an extreme pressure grease lubricant composition for rolling bearing applications can extend the useful service life of rolling bearings. The bismuth can be used as an additive, preferably an EP additive, or as a soap or non-soap thickener. The invention further relates to a method for preparing an extreme pressure lubricant composition in which a bismuth containing soap or thickener is mixed with an oil and optionally one or more EP- or other additives.