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chemical recovery

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Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004190
EISBN: 978-1-62708-184-9
.... The article examines the corrosion problems in high-yield mechanical pulping, sulfite process, neutral sulfite semichemical pulping, chemical recovery, tall oil plants, wastewater treatment, and recovery boilers. It explains the stages of chlorine-based and nonchlorine bleaching, process water reuse...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003052
EISBN: 978-1-62708-200-6
...-phase reactions, filtration and washing, and powder recovery techniques. It concludes with a discussion on characterization, centering on size distribution analysis, specific surface area, density, porosity chemical composition, phase, and surface composition. ceramic powders ceramic processing...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005285
EISBN: 978-1-62708-187-0
... implications of dross, and in-plant enhancement or recovery of dross. It discusses the influence of the melter type on dross generation and the influence of charge materials and operating practices on melt loss. Fluxing is a word applied in a broad sense to a number of melt-treating methods. The article also...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006250
EISBN: 978-1-62708-169-6
...Abstract Abstract This article introduces the mechanism of diffusion and the common types of heat treatments such as annealing and precipitation hardening, which are applicable to most ferrous and nonferrous systems. Three distinct processes occur during annealing: recovery, recrystallization...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003471
EISBN: 978-1-62708-195-5
... of thermoset-matrix composites and thermoplastic-matrix composites. The recycling of thermoset-matrix composites includes regrind, chemical, energy recovery, and thermal processes. Thermoplastic-matrix composites are recycled by regrinding, compounding/blending and reprocessing. The article concludes...
Book Chapter

By John C. Bittence
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003222
EISBN: 978-1-62708-199-3
... low values. A number of alternative scrap recovery methods have been developed for other mixed aluminum scrap sources, and these methods can be adapted for use in car recycling. They include improved preprocessing methods to concentrate aluminum fractions and mechanical, physical, and chemical...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001118
EISBN: 978-1-62708-162-7
... of silver- and gold-coated components through visual examination. Source: Ref 66 Electronic scrap processing options Table 14 Electronic scrap processing options Process Comments Chemical stripping Only of use on exposed gold surfaces. Recovery ∼90% Chemical treatment (acid...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003825
EISBN: 978-1-62708-183-2
.... Table 1 lists numerous applications for tantalum in the chemical processing industry and in other industries. Applications for tantalum equipment Table 1 Applications for tantalum equipment Product Operation Industry Equipment Remarks Acetic acid, crude Recovery from wood...
Book Chapter

By John C. Bittence
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003222
EISBN: 978-1-62708-199-3
.... Because molten magnesium oxidizes rapidly, the metal should be cast immediately once the desired chemical specifications have been attained. This minimizes crucible failure and maximizes metal recovery. Overheating magnesium during melting must be avoided to prevent oxidation, to avoid spit back...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006489
EISBN: 978-1-62708-207-5
... due to the low aluminum levels and the desire to achieve a matte finish. Proprietary additives can be used to assist with producing the matte finish. Closed-loop recovery systems of this type also reduce chemical costs and provide more-uniform etching. Because of the high capital investment...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002438
EISBN: 978-1-62708-194-8
... are frequently the cause of making material recovery uneconomical. For example, thermosetting plastics cannot be melted; when they are formed they are generally made of two or more chemical parts that bond into an almost crystalline lattice structure that must be chemically dissociated. Tires are a thermoset...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006062
EISBN: 978-1-62708-172-6
... Chemicals and Soap/Tall Oil Recovery Chemical Preparation and Storage of Purchased Chemicals Steam and Power Generation Water and Effluent Treatment Systems for Class 1 Condition (1-PM) Systems for Class 2 Condition (2-CR) Systems for Class 3 Condition (3-NS) Additional Considerations...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001091
EISBN: 978-1-62708-162-7
... temperatures. This article discusses the uses of gallium in optoelectronic devices and integrated circuits and applications of gallium. The article discusses the properties and grades of gallium arsenide and also provides information on resources of gallium. The article talks about the recovery techniques...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003472
EISBN: 978-1-62708-195-5
... can be done in two stages, with the reinforcement area sawed or otherwise removed from the component followed by recovery of the aluminum trapped in the preform. If the area of the reinforcement cannot be determined precisely, it may be possible to melt the surrounding product from it using a dry...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001321
EISBN: 978-1-62708-170-2
...Abstract Abstract This article describes selected U.S. environmental statutes and regulations that are pertinent to material surface finishers. It provides information on the applicability, requirements, and permitting conditions of the Clean Air Act, the Resources Conservation and Recovery Act...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005183
EISBN: 978-1-62708-186-3
... temperatures in comparison to Coble creep, and large grain sizes (Several to several million) ×(Ω) −2/3 (a) 2–6 (a) 0 (a) The terms A i and m″ are strongly dependent on the mechanism controlling power-law creep at the substructural level. Adapted from Ref 34 Chemical compositions...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004020
EISBN: 978-1-62708-185-6
... Chemical compositions of alloys for study Table 3 Chemical compositions of alloys for study Material Composition, wt% Condition Zn Mg Cu Zr Cr Alloy 1 (7475 Al) 5.7 2.3 1.5 … 0.14 Fully recrystallized microstructure ( d 0 =12 μm) Alloy 2 (7000+dispersoids) 7.2 2.5 2.0...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003013
EISBN: 978-1-62708-200-6
... available. This is not a large volume compared to the total volume of plastics potentially available for recycling, but these polymers are concentrated in specific waste streams and provide good feedstock for conversion by solvolytic reaction. Tertiary recycling is the recovery of chemicals from scrap...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006487
EISBN: 978-1-62708-207-5
... the annealing of worked structures in terms of recovery, recrystallization, and grain coarsening. It summarizes some of the annealing treatments used in conjunction with fabrication by metal working, including preheating, interannealing, self-annealing, stabilization, and stoving. The article concludes...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006285
EISBN: 978-1-62708-169-6
... treatment in the fabrication of metal parts and semiproducts. This article discusses the processes involved in annealing, namely, recovery, recrystallization, and grain coarsening. It lists the heat treatment conditions of processed aluminum alloys. It provides information on the types of heat treatment...