Secondary Raw Material


Also found in: Acronyms.

Secondary Raw Material

 

materials and articles which, after complete initial use (wear), may be used repeatedly in production as starting material.

The most important forms of secondary raw material are scrap, such as usable waste of ferrous, nonferrous, and precious metals; spent lubricants; rejected material from components; discontinued articles made of polyethylene; and worn out tire treads, spent sulfuric acid, and waste paper. Secondary raw material also includes machines, equipment, and their components that have fallen out of service because of wear; metal parts obtained in the demolition of buildings and old ships; ferrous and nonferrous metals contained in everyday articles and articles of general consumption unfit for use; and end waste products of production that constitute an irrevocable loss for a given enterprise (for example, ashes in electrical power plants). Most important for the national economy, both in terms of the magnitude of the resource and its value, are the various secondary metals that are formed in the shape of depreciated scrap and industrial waste.

Depreciated scrap resources are determined by a number of factors, such as the quantity of metal resources of a country, the age of these resources, and the material composition. In conjunction with the increased supply of automobiles, the reclamation of old vulcanized rubber has ever-increasing importance in saving raw rubber. Such measures as the reclamation of lubricating materials (particularly in machine building), recovery of volatile solvents, reconstitution and repeated use of spent sulfuric acid, and reconstitution of catalytic agents containing precious and rare metals also play important roles. The importance of secondary raw materials in the food industry and other branches is increasing.

The use of secondary raw materials in various branches of industry is important for the further development of the national economy of the USSR, both as a source of additional material resources and as a factor in reducing the prime cost of products and lowering the proportionate capital outlays; it is also important in increasing the rate of growth of production. In the USSR specialized organizations have been established to collect secondary raw materials (purchasing centers) and procure, sort, and dress them and give them initial processing. These organizations either carry out the subsequent processing and reprocessing themselves or else send the collected secondary raw materials to enterprises that will use the materials after processing and reprocessing them. The collection and use of secondary raw material is included in the planning process in the USSR.

References in periodicals archive ?
Usage of the reduced zinc sulfide as a secondary raw material being added to the colorants of the colored glaze is conditioned by solubility of zinc sulfides in the melts of silicate glass (glaze) and its ability to gain on a distinct pure color at high temperature.
Only the initial secondary raw material sorting works satisfactorily, however, the secondary waste sorting systems, as well as hazardous waste collection, waste recycling and recovery systems have not been created yet.
The duty on primary raw materials, secondary raw materials, intermediate goods, semi-finished goods and finished goods should be levied on the basis of cascading duty structure.
He said they will also demand that duty on primary raw materials, secondary raw materials, intermediate goods, semi-finished goods and finished goods should be levied on the basis of cascading duty structure.
The technology turns used absorbent hygiene products into secondary raw materials for higher value applications.
Pricing Establishes Fixed Margin Floor: Ecore is a price taker in terms of the sale of secondary raw materials. Its main customers are major European steel companies and metals refineries, which establish their purchase price either weekly or monthly based on market indices.
The European market experiences the maximum consumption of aquafeed due to the increased consumption of seafood, flexibility in using secondary raw materials, and increasing income of the expanding middle class in developing nations.
With 90,000 people on the five continents.The group recovers 17 million tons of waste a year, produces 3.9 million tons of secondary raw materials and 7 TWh of local renewable energy.
After they have been collected these separated materials become secondary raw materials, which are only truly recycled when they are actually made into something else.
A smartphone, for instance, has a concentration of gold25 to 30 times that of the richest primary goldores, according to the study, "Prospecting Secondary Raw Materials in the Urban Mine and Mining Waste" (ProSUM).
Suez recovers 17m tons of waste per year and produces 3.9m tons of secondary raw materials and 7.0 TWh of local renewable energy.
The entire value chain is represented, from raw materials suppliers, packaging converters, brand owners and retailers to producer responsibility organisations, collectors, sorters and recyclers, as well as other technology suppliers and end users of the secondary raw materials.