scholarly journals Initial steps in the degradation of benzene sulfonic acid, 4-toluene sulfonic acids, and orthanilic acid in Alcaligenes sp. strain O-1

1990 ◽  
Vol 1 (1) ◽  
pp. 55-64 ◽  
Author(s):  
Thomas Thurnheer ◽  
Daniel Z�rrer ◽  
Otmar H�glinger ◽  
Thomas Leisinger ◽  
Alasdair M. Cook
Keyword(s):  
Sulfonic Acid ◽  
Sulfonic Acids ◽  
Benzene Sulfonic Acid ◽  
Orthanilic Acid

Effect of surface acidity on the catalytic activity and deactivation of supported sulfonic acids during dehydration of methanol to DME

2020 ◽  
Vol 44 (39) ◽  
pp. 16810-16820
Author(s):  
Rosanna Viscardi ◽  
Vincenzo Barbarossa ◽  
Daniele Mirabile Gattia ◽  
Raimondo Maggi ◽  
Giovanni Maestri ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Sulfonic Acid ◽  
Water Resistance ◽  
Surface Acidity ◽  
Acid Catalyst ◽  
Acid Sites ◽  
Sulfonic Acids ◽  
Effect Of Surface

Superiorty of the supported sulfonic acid catalyst in terms of the water resistance and efficiency of the acid sites compared to the commercial reference.

THE SULFURIC ACID SOLVENT SYSTEM: PART VII. SOLUTIONS OF SOME TIN(IV) AND LEAD(IV) COMPOUNDS

1966 ◽  
Vol 44 (10) ◽  
pp. 1197-1202 ◽  
Author(s):  
R. J. Gillespie ◽  
R. Kapoor ◽  
E. A. Robinson
Keyword(s):  
Sulfuric Acid ◽  
Sulfonic Acid ◽  
Solvent System ◽  
Lead Tetraacetate ◽  
Benzene Sulfonic Acid ◽  
Tin Compounds ◽  
Cationic Species ◽  
Stannic Acid ◽  
System Part

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.

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

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1476 ◽  
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.

Ball-Milling Synthesis of Sulfonyl Quinolines via Coupling of Haloquinolines with Sulfonic Acids

2021 ◽  
Author(s):  
Xiao-Wen Liu ◽  
Jia-Qian Wang ◽  
Hui Ma ◽  
Qi Zhu ◽  
Long-Yong Xie
Keyword(s):  
Ball Milling ◽  
Sulfonic Acid ◽  
Practical Approach ◽  
Sulfonic Acids ◽  
Metal Solvent

An efficient and practical approach for the synthesis of sulfonyl quinolines via ball milling promoted coupling of haloquinolines with sulfonic acid under metal-, solvent- and additive-free conditions has been developed....

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