PROCESS AND EQUIPMENTS FOR PRODUCTION OF EXPANDABLE GRAPHITE

The device of this invnetion includes a bath for electrochemical reaction into which electrochemical solution and electrodes are fitted. On the anode side, is installed a permeable-plate case into which, graphite to be treated is filled. Said cathode and anode plates are set in parallel and the ratio of plate distance to short plate side is less than 0.35. In said process only anode oxidation by Dc current is needed, and pressing and strirring of graphite are not required.

水解胶原

... 本发明是利用废弃物马面鱼皮，加上辅料：蒸馏水、含量31％的无色食用级盐酸、767型药用碳粉、工业级25％以上的氨水、食品级99％以上的氢氧化钠、强酸型阳离子树脂、丙酮、乙醇等，经盐酸溶液浸饱、水解、减压除酸、脱色、过滤、上柱交换、洗酸、收集、脱色、过滤、减压浓缩、真空干燥等工艺后，制成一种天然复合氮基酸产品，本发明的产品含有对人体十分有益的羟脯氨酸，氨基酸含量高达90％以上，与同类产品相比，质量是上乘，而且成本低。 ...

Electronic monitor system for termite damage based on radio frequency

The utility model relates to an electronic monitoring system to monitor the termite harm based on wireless radio frequency, comprising a microprocessor as a central concentrated data acquisition machine. A data interface of the microprocessor is communicated with at least a receiving unit of data terminal through a wire communication channel, and each receiving unit of data terminal is communicated with a corresponding module which has the function of processing information and ZIGBEE wireless communication through at least a wireless communication channel. Besides, the module is connected with a plurality of monitor probes of the termite harm in each detector of the termite harm by a plurality of data lines of the module respectively, and the module can receive the information of the termite harm which is detected by the monitor probes of the termite harm, and also the detector of the termite harm has the function of ZIGBEE communication and adaptive networking. The regular data acquisition ...

Hydrolytic collagen

A hydrolytic collagen as a natural compound amino acid product is prepared from the skin of black scraper, distilled wter, edible 31% hydrochloric acid, medical carbon powder, 25% ammonia water, edible 99% sodium hydroxide, cationic resin, acetone and alcohol through immersing in solution of hydrochloric acid, hydrolysis, removing acid, decolouring, filtering, column exchange, acid washing, collection, decolouring, filtering, vacuum concentrating and vacuum drying. Its advantages are high amino acids content up to 90%, containing Hyp useful to human body and low cost.

Quick detecting method of illegal cooking oil

The invention discloses a quick detecting method of illegal cooking oil, comprising the steps of injecting 10 ml of mixed solution of ethanol and water or ethyl ether; adding a phenolphthalein indicator solution with a concentration of 1% to a glass test tube; dropping a sodium hydroxide titrant with a concentration of 0.01 mol/L to a test tube so that the liquid is pink; adding oil to be detected to the glass test tube to be uniformly shaken so that the pink color of the solution fades and has no color; dropping the sodium hydroxide titrant to the test tube again until the solution becomes pink again; recording the volume of the sodium hydroxide titrant at this time; and if the volume of the sodium hydroxide titrant is more than 14 ml, showing that the acid value of the detected oil is higher than 4 and the detected oil is not qualified. The quick detecting method of the illegal cooking oil, disclosed by the invention, has the advantages of low cost and high efficiency; and the quick detecting ...

Electronic monitor system for termite damage based on radio frequency

Universal superminiature infrared transmitting and receiving serial component

The present invention discloses a universal supermicro type infrared transmitting and receiving component, consisting of stainless steel casing, double printed board, infrared transmitting tube, infrared receiving tube and display driving alarm circuit. Said component is packaged in a stainless steel case, and its interior is filled up with epoxy resin, and can be respectively designed into three types of reflection-type, transmission-type and separation-type. Said invention has the advantages of small size, light weight, good electric performance, good radio frequency response, short transmission time, strong anti-vibration and anti-interference power and extensive application range.

Method and apparatus for manufacturing expansible graphite