Acid-resistant epoxy resin embedding agent and preparation method thereof

Method for catalyzing alcohol acid esterization by acidic ion liquid

The invention relates to a hydroxy acid esterification method that is catalyzed by acid ion liquid. It adopts alpha-pyrrolidone positive ion and ion liquid formed by inorganic or organic ion as catalyst, solvent, and dehydrating agent, the ion liquid quantity is 10-200% mol ratio of alcohol and acid, taking 0.5-8 hours reaction at 80-140 degree centigrade to gain ester. The method has the advantages of high selective, hig universality, and the ester could be automatically separated with catalyst.

Method for synthesizing ethyl acetate by ionic liquid catalytic continuous esterification distillation

The invention provides a method of ionic liquid catalyze, continuously esterifying and rectifying synthesized ethyl acetate, comprising adding a definite proportion of acetic acid, ethanol and ionic liquid catalytic agent that is alpha-pyrrolidone bisulphate at the bottom of rectification column, setting an upper heat-preserving temperature, a lower heat-preserving temperature, a reactor temperature and a reflux ratio, heating up to generate refluxing liquid at the top of the column, then holding total reflux for 15min, adding the mixed liquor of ethanol and acetic acid to the esterification reactor continuously from a high-level tank at a definite ratio of alcohol and acid and a certain feed flow speed, opening reflux ratio for preparing ethyl acetate by continuous reaction and rectification; for keeping the stability of the system, refluxing partial coarse ester at a definite refluxing speed to the bottom of the reactor, and bringing out superfluous product by azeotropy. The method uses ...

Disposable electronic tag antenna, production method and application thereof

The invention relates to a disposable electronic tag antenna, a production method and application thereof. The disposable electronic tag antenna comprises a carrier base material layer and an antenna layer, wherein the antenna layer is arranged on the carrier base material layer, composite structures of a film spraying layer and an aluminum plating antenna layer are sequentially arranged on the carrier base material layer, and patterns are arranged on the aluminum plating antenna layer. The production method of the invention comprises the following steps: the first step: preparing the carrier base material layer; the second step: preparing the antenna layer; and the third step: carrying out vacuum aluminum plating. The invention obtains the application of products to disposable ultrahigh frequency electronic tags. The invention has the advantages that the non-portability of the disposable electronic tag antenna is ensured, fragile materials are used as base materials of the antenna, the ...

Method for catalyzing alochol acid esterization by sulfonic-acid-radical functionized ion liquid

The invention relates to a hydroxy acid esterification method that is catalyzed by sulfonic group ion liquid. It adopts alpha-pyrrolidone positive ion that is sulfonic functionalized and ion liquid formed by inorganic or organic ion as catalyst, solvent, and dehydrating agent, the ion liquid quantity is 10-200% mol ratio of alcohol and acid, taking 0.5-8 hours reaction at 40-140 degree centigradeto gain ester. The method has the advantages of high selective, hig universality, and the ester could be automatically separated with catalyst.

Catalytic esterification method for sulfonic group functionalization morpholine hyamine ion liquid

Method for preparing biodiesel by sulfonic acid type ion liquid

The invention discloses a method for preparing biodiesel through catalysis of sulfonic acid-type ionic liquid. The method comprises the following steps: according to certain proportion, a lipin material, methanol and ionic liquid are added into a high-pressure reaction kettle, are heated for reaction; after reaction is finished, the mixture is kept stand and is delaminated; a product is separated out; a small amount of methanol is distilled and removed at normal atmosphere; the method adopts sulfonic acid-type ketopyrrolidine or protoporphyrin ionic liquid with strong acidity as a catalyst for interesterification reaction; and the catalyst catalyzes the lipin and methanol to prepare the biodiesel. The method has the advantages that the used sulfonic acid-type ionic liquid has strong acidity, high catalytic activity, good stability and low corrosion to equipment; after the reaction is finished, the sulfonic acid-type ionic liquid and the product can automatically carry out phase splitting ...

Method for related using conventional false proof physical distribution data label and electronic label

The invention relates to a correlative use method for conventional anti-fake physical distribution data labels and electronic labels. Combinations of radio frequency identification electronic labels and conventional physical distribution anti-fake labels are layeredly arranged in a container bale, which are correlative with each other and respectively corresponding to form an anti-fake physical distribution data correlative electronic label system; the conventional physical distribution anti-fake label data are transformed into the cryptograph information through an encryption algorithm and then is written in correlative RFID electronic labels, and then a correlative corresponding and one-to-many anti-fake physical distribution data correlative structure is established; the stored encrypted data in the RFID electronic labels are read through a reader-writer to restore to the original plaintext information, which can check, monitor and manage the condition of products. Through using the ...

Acid-resistant epoxy resin embedding agent and preparation method thereof

An acid-resisting epoxy-resin pouring agent and its production are disclosed. The pouring agent consists of epoxy-resin 100 proportion, anhydride 60-100 proportion, trivalent chrome complex 0.5-5.0 proportion and tertiary amine 0.3-3.0 proportion. The process is carried out by surface drying at room temperature for 4-6 hrs and curing less than 25 deg. C for 7 days or less than 80 deg. C for 2-3 hrs. The shearing strength for ABS plastic and lead is greater than or equal to 5 MPa, the acid absorptive rate is less than or equal to 0.7% at 80 deg. C in 40% sulfuric acid battery liquor. It has no acid creep and leakage. It can be used for pouring materials or acid-resisting coatings under high-temperature or high-acidity condition.

Method for preparing biodesel by microwave catalysis

The invention discloses a method for preparing a biological diesel by using microwave catalyzing. The invention adopts a microwave synthesis technology which uses plant oils, acidified oils, waste edible oils or hogwash oils and methanol or ethanol as raw materials, and a composite catalyst consisting of imidazole alkaline ion liquid and alkaline for producing the biological diesel by catalyzing; the specific method comprises the following steps: grease, short chain alcohol and the catalyst are added by proportion into a three-mouth flask which is placed in a microwave reactor with a condensation and circumfluence device and an infrared probe for reaction; after the completion of the reaction, the flask is laid statically for layering to separate products; a small amount of methanol is removed by being distilled at ordinary pressure or not; compared with the general heating method, the method of the invention has the advantages of high reaction speed, greatly reduced reaction time, high ...

Electric monitoring system for farming cultivation

The invention discloses a stock raising electronic supervision system, which comprises a stock raising subsystem and a stock raising supervision platform subsystem, wherein the stock raising subsystem comprises a stock raising information acquisition unit and a stock raising database, and the stock raising electronic supervision platform subsystem comprises a supervision platform database and a PC terminal. The stock raising subsystem and the stock raising supervision platform subsystem are connected with each other through the stock raising database and the supervision platform database, the stock raising information acquisition unit is connected with the stock raising database, and a user has access to the supervision platform database through a web browser in the PC terminal. The invention enables the government to supervise stock raising enterprises, live pig butcheries, meat wholesale enterprises and retail stalls, and also enables the public to enquiry the source of pork, the process ...

Sulfonic group functionalized morpholine quaternary ammonium salt ionic liquid and method for preparing the same

The invention discloses a sulfonic group functionalization morphia quaternary ammonium salt ion liquid of formula (1) and preparing method, which is characterized by the following: setting n as 3 and 4; setting R as straight chain of H or C1-C12 or saturated or unsaturated hydrocarbyl group of branch chain; choosing B from chlorine, bromine, iodine, sulfate radical, sulfate hydrogen radical, nitrate radical, acid radical phosphate, four fluoroboric acid radical, phosphorofluoric acid radical, acetic acid radical, methanesulfonic acid radical, p-toluenesulfonic acid radical, trifluoro methanesulfonic acid radical and trifluoroacetic acid radical; mixing morphia mahogany inner sulfonate and acid of equal mole ratio in water or solventless; stirring and reacting for 48-72 h at 0-120 deg. c; getting sulfonic group functionalization morphia quaternary ammonium salt ion liquid. This invention can be used as accelerant or dissolvent of organic chemistry reaction, which possesses simple craft and ...

Method for synthesizing ethyl acetate by ionic liquid catalytic continuous esterification distillation

The invention provides a method of ionic liquid catalyze, continuously esterifying and rectifying synthesized ethyl acetate, comprising adding a definite proportion of acetic acid, ethanol and ionic liquid catalytic agent that is alpha-pyrrolidone bisulphate at the bottom of rectification column, setting an upper heat-preserving temperature, a lower heat-preserving temperature, a reactor temperature and a reflux ratio, heating up to generate refluxing liquid at the top of the column, then holding total reflux for 15min, adding the mixed liquor of ethanol and acetic acid to the esterification reactor continuously from a high-level tank at a definite ratio of alcohol and acid and a certain feed flow speed, opening reflux ratio for preparing ethyl acetate by continuous reaction and rectification; for keeping the stability of the system, refluxing partial coarse ester at a definite refluxing speed to the bottom of the reactor, and bringing out superfluous product by azeotropy. The method uses ...

SUPPORT DEVICE FOR ACTUATOR, AIR INTAKE SYSTEM AND AIRCRAFT

This disclosure relates to a support device for an actuator. The support device includes a support unit adapted to be mounted to a stationary structure, an attachment unit adapted to be attached to an actuator casing and a single pivot shaft, and the attachment unit is pivotably connected to the support unit via the single pivot shaft. The support device according to the present disclosure has a simple structure and is stable in operation. The present disclosure further relates to an air intake system for an auxiliary power unit, which includes the above support device for the actuator. In addition, the present disclosure further relates to an aircraft including the air intake system for the auxiliary power unit. 1. A support device for an actuator , wherein ,the support device comprises:a support unit adapted to be mounted to a stationary structure;an attachment unit adapted to be attached to an actuator casing; anda single pivot shaft via which the attachment unit is pivotably connected to the support unit.2. The support device according to claim 1 , wherein a bush or bearing is provided between the pivot shaft and at least one of the attachment unit and the support unit claim 1 , and/orthe bush or bearing has a spherical outer surface.3. The support device according to claim 1 , wherein the attachment unit and the actuator casing are formed into one piece claim 1 , the attachment unit is at least one lug extending from the actuator casing claim 1 , and the at least one lug is provided therein with a hole configured to receive the pivot shaft.4. The support device according to claim 1 , wherein the attachment unit and the actuator casing are separately formed claim 1 , the attachment unit comprises a main body portion claim 1 , a lug extending from the main body portion claim 1 , and a fastener configured to fasten the main body portion to the actuator casing claim 1 , and the lug is provided therein with a hole configured to receive the pivot shaft.5. The support ...

EMERGENCY CALL METHOD AND USER TERMINAL

Embodiments of the invention discloses an emergency call method and a user terminal. The method includes: obtaining a home public land mobile network (HPLMN) and an equivalent HPLMN (EHPLMN) from a SIM card of a user terminal; receiving an emergency call operation of a user; receiving, in response to the emergency call operation, a public land mobile network (PLMN) list broadcast by an access network device, which is in a multi-operator core network (MOCN), and the PLMN list includes a plurality of PLMNs that share the access network device; when the PLMN list includes the HPLMN or the EHPLMN, determining that the HPLMN or the EHPLMN is an optimal PLMN; and making an emergency call through a core network of the optimal PLMN. Thus, an emergency call center can obtain a phone number of the user terminal.

Emergency calling method and user terminal

Embodiments of the present invention disclose an emergency call method and a user terminal. The method includes: obtaining an HPLMN and an EHPLMN from a subscriber identification module SIM card of a user terminal; receiving an emergency call operation of a user; receiving, in response to the emergency call operation of the user, a public land mobile network PLMN list that is broadcast by an access network device, where the access network device is an access network device in a multi-operator core network MOCN, and the PLMN list includes a plurality of PLMNs that share the access network device; when the PLMN list includes the HPLMN or the EHPLMN, determining that the HPLMN or the EHPLMN in the PLMN list is an optimal PLMN; and making an emergency call through a core network of the optimal PLMN. According to the method described in the first aspect, an emergency call center can successfully obtain a phone number of the user terminal.

Emergency call method and user terminal

Embodiments of the invention discloses an emergency call method and a user terminal. The method includes: obtaining a home public land mobile network (HPLMN) and an equivalent HPLMN (EHPLMN) from a SIM card of a user terminal; receiving an emergency call operation of a user; receiving, in response to the emergency call operation, a public land mobile network (PLMN) list broadcast by an access network device, which is in a multi-operator core network (MOCN), and the PLMN list includes a plurality of PLMNs that share the access network device; when the PLMN list includes the HPLMN or the EHPLMN, determining that the HPLMN or the EHPLMN is an optimal PLMN; and making an emergency call through a core network of the optimal PLMN. Thus, an emergency call center can obtain a phone number of the user terminal.

Resource management method and apparatus, server, and storage medium

Verfahren zur Speisung von Thermoelementen aus einer Wechselstromquelle sowie Vorrich tung zur Durchfuhrung des Verfahrens