According to Wu Guilu, chief engineer of Jiangxi Weike Oil & Chemical Co., Ltd., the technology developer, they developed a new process unit for efficient distillation and short-range molecular distillation using vegetable oil by-produced fatty acids as raw materials, and separated and recovered palmitic acid, oleic acid and The erucic acid was extracted after the arachidonic acid and the erucic acid amide product was synthesized under the action of the autocatalyst RE-302B. The three-stage continuous separation and purification technology used in the new process to purify erucic acid amide can produce high-purity (≥ 99.0%) erucic amide, which is practically non-toxic and complies with EU RoHS Directive 2002/95/EC and post-correction Order requirements.
According to Wu Guilu, the current domestic production methods for high-purity erucic acid amides are erucic acid and ammonia reaction pathways, small-scale installations, low degree of continuous, high product costs, impurities, low purity (<92%), can not meet The introduction of large-scale polyethylene, polypropylene, BOPP film and non-woven fabrics and other devices on the use of lubricants.
High-purity erucic acid amide is an efficient and environment-friendly polymer functional additive, which plays an important role in the production of polyolefins, polyesters, polyamides and other plastics and non-wovens, and solvent-free powder coatings and resin inks. The high value-added bio-based biodegradable fine chemicals that are urgently needed in China have been listed in the high-tech fields supported by the country.
Wu Guixi told reporters that the high-purity erucic acid amide kit research and development project was funded by the Ministry of Science and Technology's SME Innovation Fund in 2006, and the product was listed as a national key new product. At present, Wolters Kluwer has used this technology to build an industrial production unit with an annual output of 3,000 tons.
Classification of tablet press: Models can be divided into single punch tablet press, rotary tablet press, sub-high speed rotary tablet press, automatic high speed tablet press and rotary core tablet press.
The sheet shape pressed by the tablet press is initially flat circular, and later developed into shallow circular arc and deep circular arc on both sides, which is for the need of coating. With the development of special-shaped tablet press, oval, triangle, oblong, square, diamond, circular ring tablets followed. In addition, with the continuous development of preparations, due to the requirements of compound preparations and timed release preparations, special tablets such as double layer, triple layer and core coating are made, which need to be completed on special tablet press.
Rotary tablet press is a machine which is made of several pairs of die distributed on the turntable to make a circular lifting movement according to a certain track and press the granular material into tablet through the press wheel. And the stamping rod with the rotary table rotating speed ≥60m/min line press is called high-speed rotary tablet press, this high-speed rotary tablet press has a forced feeding mechanism, the machine is controlled by PLC, has the automatic adjustment of pressure, control the weight of the piece, eliminate the waste piece, print data, display fault shutdown and other functions, in addition to the control of the weight difference within a certain range, Quality problems such as missing Angle and loose lobe can be automatically identified and eliminated.
With the development of market demand, the scope of application of tablet press is more and more wide, no longer simply limited to the suppression of Chinese and Western medicine tablets, more widely suppressed health food, veterinary medicine tablets, chemical tablets: such as mothballs, washing blocks, smurf blocks, art powder, pesticide tablets, food tablets: chicken essence block, isatis root block, divine Qu tea block, compressed biscuits.
Rotary Tablet Press,Tablet Press,Tablet Machine,Tablet Maker,Pill Machine
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