Study on non-ammonium salt deliming using sulfuric acid and magnesium sulfate

被引：0

作者：

Sunahara, M ^{[1
]}

Suzuki, A ^{[1
]}

机构：

[1] Tokyo Metropolitan Leather Technol Ctr, Sumida Ku, Tokyo 1310042, Japan

来源：

6TH ASIAN INTERNATIONAL CONFERENCE OF LEATHER SCIENCE AND TECHNOLOGY | 2004年

关键词：

D O I：

暂无

中图分类号：

TB3 [工程材料学]; TS1 [纺织工业、染整工业];

学科分类号：

0805 ; 080502 ; 0821 ;

摘要：

Non-ammonium salt deliming process using sulfuric acid and magnesium sulfate was investigated in order to reduce nitrogen load in waste liquors from tanneries. Using 10% magnesium sulfate and 0.15% sulfuric acid of the weight of salted pigskins, it was possible to achieve satisfactory deliming. In combination with usage of non-ammonium salt bating agent, total nitrogen in bating effluent was reduced to about 10% compared to the conventional deliming and bating method. Leathers resulting from deliming with sulfuric acid and magnesium sulfate are comparable to leathers delimed with ammonium sulfate.

引用

页码：73 / 83

页数：11

共 50 条

[41] SULFURIC-ACID AND AMMONIUM-SULFATE SOLUTION PURIFICATION FROM ORGANIC IMPURITIES [J].

PREOBRAZHENSKY, VA ;

FLAKSMAN, AM .

KHIMICHESKAYA PROMYSHLENNOST, 1980, (03) :168-171

[42] STUDY OF COCRYSTALLIZATION OF NICKEL ION WITH MAGNESIUM AMMONIUM SULFATE USING NI-63 TRACER [J].

MAHADEVA.DS ;

MURTHY, ASA .

JOURNAL OF RADIOANALYTICAL CHEMISTRY, 1972, 12 (02) :469-474

[43] Solubility of ammonium aluminum sulfate dodecahydrate in the aluminum sulfate plus ammonium sulfate plus sulfuric acid plus water system at (25, 30, 40, and 50) °C [J].

Hostomská, W ;

Hostomsky, J .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2006, 51 (01) :243-247

[44] Solid-liquid phase diagrams of binary salt hydrate mixtures involving magnesium nitrate and acetate, magnesium and aluminum nitrates, ammonium alum and sulfate, and ammonium alum and aluminum sulfate [J].

Marcus, Y ;

Minevich, A ;

Ben-Dor, L .

THERMOCHIMICA ACTA, 2004, 412 (1-2) :163-170

[45] H2SO4 vapor pressure of sulfuric acid and ammonium sulfate solutions [J].

Marti, JJ ;

Jefferson, A ;

Cai, XP ;

Richert, C ;

McMurry, PH ;

Eisele, F .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1997, 102 (D3) :3725-3735

[46] Oriented Crystallization of Ammonium Sulfate from Hexagonal Boron Nitride/Sulfuric Acid Intercalation Compounds [J].

Tsujimura, Takuya ;

Uchino, Takashi .

ACS OMEGA, 2021, 6 (09) :6482-6487

[47] Geopolymeric mortar: study of degradation by sodium sulfate and sulfuric acid [J].

Mauri, J. ;

Dias, D. P. ;

Cordeiro, G. C. ;

Dias, A. A. .

MATERIA-RIO DE JANEIRO, 2009, 14 (03) :1039-1046

[48] THE HETEROMETRIC MICRODETERMINATION OF SULFURIC ACID AS BARIUM SULFATE - A GENERAL STUDY [J].

BOBTELSKY, M ;

EISENSTADTER, J .

ANALYTICA CHIMICA ACTA, 1956, 14 (02) :186-193

[49] Microscopic Analysis of the Surface of Potassium-Ammonium Sulfate Acid Salt Crystals [J].

Gainutdinov, R., V ;

Tolstikhina, A. L. ;

Selezneva, E., V ;

Makarova, I. P. .

CRYSTALLOGRAPHY REPORTS, 2022, 67 (03) :412-420

[50] Microscopic Analysis of the Surface of Potassium-Ammonium Sulfate Acid Salt Crystals [J].

R. V. Gainutdinov ;

A. L. Tolstikhina ;

E. V. Selezneva ;

I. P. Makarova .

Crystallography Reports, 2022, 67 :412-420

← 1 2 3 4 5 →