Two functional post-cross-linked polystyrene resins: Effect of structure on the enhanced removal of benzene sulfonic acid

Solutions of tetramethyl tin trimethyl tin sulfate, di-n-butyl tin diacetate, tetraphenyl tin, and triphenyl tin hydroxide in. 100% sulfuric acid have been investigated by cryoscopic and conductimetric methods. Tetramethyl tin reacts with sulfuric acid with the evolution of methane and the formation of trimethyl tin hydrogensulfate. Trialkyl tin hydrogensulfates and dialkyl tin dihydrogensulfates behave as strong bases. It is probable that the cationic species formed are protonated hydrogensulfates rather than "stannonium" ions. Phenyl-substituted tin compounds are cleaved in sulfuric acid with the formation of benzene sulfonic acid and the complex hexa(hydrogensulfato) stannic acid, H2Sn(HSO4)6, and its anions. Lead tetraacetate gives yellow solutions containing hexa(hydrogensulfato) plumbic acid, H2PB(HSO4O6, and its anions.

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Soluble Polyaniline Co-doped with Dodecyl Benzene Sulfonic Acid and Hydrochloric Acid *

Solution and Surface Polymerization ◽

10.1201/9780429027420-22 ◽

2019 ◽

pp. 275-286

Author(s):

Wusheng Yin ◽

Eli Ruckenstein

Keyword(s):

Hydrochloric Acid ◽

Sulfonic Acid ◽

Benzene Sulfonic Acid ◽

Dodecyl Benzene Sulfonic Acid ◽

Co Doped

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Effect of Rejuvenator Containing Dodecyl Benzene Sulfonic Acid (DBSA) on Physical Properties, Chemical Components, Colloidal Structure and Micro-Morphology of Aged Bitumen

Materials ◽

10.3390/ma11081476 ◽

2018 ◽

Vol 11 (8) ◽

pp. 1476 ◽

Cited By ~ 5

Author(s):

Dongliang Kuang ◽

Zhou Ye ◽

Lifeng Yang ◽

Ning Liu ◽

Zaihong Lu ◽

...

Keyword(s):

Thin Film ◽

Physical Properties ◽

Sulfonic Acid ◽

Chemical Components ◽

Structure Transformation ◽

Colloidal Structure ◽

Benzene Sulfonic Acid ◽

Oven Test ◽

Dodecyl Benzene Sulfonic Acid ◽

Micro Morphology

DBSA was used as a solubilizer together with conventional rejuvenator (CR) to produce a solubilized rejuvenator (SR), two kinds of aged bitumen involving TFOT aged bitumen and PAV aged bitumen were obtained by thin film oven test (TFOT) and pressurized aging vessel (PAV), respectively. Effects of CR and SR on the physical properties, chemical components, colloidal structure and micro-morphology of TFOT aged bitumen and PAV aged bitumen were investigated. Testing results of physical properties and chemical components indicated that CR and SR can replenish aged bitumen with necessary aromatics, TFOT aged bitumen that chemical component variation deteriorates its physical properties. With regard to PAV aged bitumen, of which the performance attenuation lies in chemical components variation and colloidal structure transformation, even if the content of CR reached up to 10 wt %, the regenerated bitumen cannot meet the regeneration requirement yet due to its definite influence on colloidal structure transformation, comparatively, sulfonic group in SR can react with the superficial atoms of asphaltenes to reform a solvation layer to facilitate the colloidal structure transformation of PAV aged bitumen, performance and beelike structure of regenerated PAV aged with bitumen with 10 wt % SR were approximated to that of virgin bitumen.

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