This unit not only meets the requirement for the simultaneous recovery of heat from the blow run gas from 6～8 gasifiers of 2 400/2 600 in small nitrogenous fertilizer plants but also satisfies the need for the simultaneous recovery of heat from the blow run gas from 3～4 gasifiers of 3 600 in medium nitrogenous fertilizer plants.
In order to provide reliable criteria for industrial test,a new separation technology for comprehensive recovery of valuable elements such as molybdenum,Zinc,iron and sulphur was examined on the basis of laboratory experimental research.
The adsorption capacities of IISX are 0.44-1. 6mN ions/gIISX and chelate ratios are 2.1(Zn2 + )and 1:1 (Cr3 + , Ni2 + ) respectively. IISX may be regenerated by dilute HCl(1:1).
According to chemical precipitation theory, in the experiment, two chemicals containing Mg~(2+) and PO_4~(3-) ions were used to put into wastewater to generate the struvite(MgNH_4PO_4·6H_2O) precipitation. So ammonium-nitrogen and phosphorus could be recovered from wastewater as a precipitate effectively.
The simultaneous recovery of the single-crystal state of the β phase from this intermediate state in all nanoscopic regions as the annealing temperature increases indicates that nanocrystals in this state are structurally correlated with each other.
Possibilities of pyrogen removal from high value blood proteins and their simultaneous recovery in the pure form, using histidine immobilized sorbents are described.
An experimental study of Rotary Jet Expander ( RTE) which is a new type of expander has been conducted to advance gas separating engineering and cryogenic engineering. The principle, characteristics, performances experimental means and prototype were described in the paper. According to the experimental datums, it is found that RTE, in constract to reciprocating expander and turbo-expander, is simple in construci-tion,ease in manufacture, high in efficency, low in rotative velocity and wide in the region of...
本文介绍研究成功的一种新型制冷膨胀机一转动喷嘴膨胀机(RJE)的原理、特点、性能试验的方法和装置。试验结果表明,由于喷嘴转动及其他特性,与一般透平式和活塞式膨胀机相比较,RJE具有结构简单、加工方便能同时回收热量,对操作工况变化适应性强等优点。并指出:适当选择机组有关配合尺寸,可使其在低分配器转速(2000—4000r. p. m)、高等熵效率(>60％)的最佳工况连续运行。
A new technique-Acetal Method-has been adopted for this paper.Under the action of a catalyst,diethylmethane,the by-product of chloromycetin,and residue of refined biphenol-A are condensed into thermoplastic phenolic formal- dehyde mode resin,and organic solvent is recovered at the same time.The resin produced by this technique is characteristic of the phenolic resin.With fine wood powder and mineral and graphite powder used as packings and hexamethy- lene tetraamine as cross linking agent,the resin,as adhes...
本文采用了“缩醛法”新技术,在催化剂作用下,将合成氯霉素的付产甲醛酯(学名二氧基甲烷或乙醇缩甲醛)和精制双酚 A 的残渣缩聚成热塑性酚醛型树酯,同时回收有机溶剂。使用本技术生产的树酯,性能类似酚醛树酯,可以用于作粘合剂,和细木粉,矿棉粉、石墨粉等为填料,六亚甲基四胺为交联剂制造电木粉绝热板和石墨制品等等:还可以用它来代替合成脂肪酸,配制成“合成粘合剂”,应用于铸制砂芯,其抗拉强度比原有的提高一倍以上。
Improved insoluble starch xanthate (IISX) is a low-cost ion exchanger which is stable at roon temperature and has high adsorbing rate(99%) for heavy metal ions. The adsorption capacities of IISX are 0.44-1. 6mN ions/gIISX and chelate ratios are 2.1(Zn2 + )and 1:1 (Cr3 + , Ni2 + ) respectively. IISX may be regenerated by dilute HCl(1:1).
同时回收
simultaneous recovery
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