Analysis of hazardous organic residues from sodium hydrosulfite industry and utilization as raw materials in a novel solid lubricant production.
The hazardous organic residual wastes produced by the sodium hydrosulfite industry are demonstrated to be convertible into a novel solid lubricant. Identification and isolation of the organic residues are achieved by Fourier transform infrared (FTIR) spectroscopy, gas chromatography-mass spectrometry (GC-MS), and nuclear magnetic resonance (NMR). FTIR and GC-MS provide important information about the residues and the two main components obtained by column chromatography are further analyzed by NMR. The main organic residues are found to be thiodiglycol and 2,2'-dithiodiethanol which have potential applications in petroleum drilling because of their S-S and/or C-S functional groups. The lubricity of the organic residues is subsequently studied and the influence of different adsorbents on the lubricity is investigated and discussed. This homemade lubricant is observed to have good lubricity and by increasing the concentration of the commercial solid lubricant M, the lubricity diminishes. The process is expected to not only have commercial impact but also help to reduce environmental pollution.
State Key Laboratory of Geological Processes & Mineral Resources, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China.
Jiwu
J
Shang
Yihe
Y
Zhang
Fengshan
F
Zhou
Fengzhu
F
Lv
Feng
F
Han
Jinbo
J
Lu
Xianghai
X
Meng
Paul K
PK
Chu
Zhengfang
Z
Ye
Jing
J
Xing
D008401:Gas Chromatography-Mass Spectrometry; D015386:Hazardous Substances / Q000032:analysis*; D007220:Industrial Waste; D054327:Lubricants; D009682:Magnetic Resonance Spectroscopy; D009930:Organic Chemicals / Q000032:analysis*; D017550:Spectroscopy, Fourier Transform Infrared
D015386:Hazardous Substances; D007220:Industrial Waste; D054327:Lubricants; D009930:Organic Chemicals