The high-effective water treatment agent-polyaluminium chloride is produced by industrial aluminiferous waste slag.

利用工业含铝产高水处理剂聚合氯化铝。

Environmentalists say there is a high risk of pollution from the landfill site.

环境保护工作者说埋填地很可能造成污染。

Anisic acid is separated from the residue of producing anisic aldehyde and synthetized methyl anisate.

从茴香油产茴香醛的、液中提取副产品茴香酸，合成茴香酸甲酯。

A new technology of recovery of solid waste is developed which is from furfuryl production by furfural hydrogenization.

对已有的糠醇产中产的回收工艺进行了改进。

The arsenolite cinders were treated by the processes of oxidizing roasting-pyrolusite pulp absorption,magnetizing roasting-magnetic separation and acid leaching.

采用氧化烧—软锰矿浆吸收、磁化烧—磁选、酸浸工艺处理砷华。

A new technology to recover potassium carbonate from the wastes of triazolone andmultipIe-effect azole production by exchange method is introduced.

介绍了用离子交换法从产农药三唑酮、多唑的中回收碳酸钾的新工艺。

So the comprehensive utilization of fluorgypsum is a way not only to reslove pollution problems,but also to reduce the cost of production.

这样既解决了环境污染问题,又实现了化工的资源化利用,社会和经济著。

This article introduces that using mixed acid of nitric acid and sulfuric acid, beet waste-slag produces industrial product oxalic acid by ordinary pressure hydrocarbonylation.

本文介绍利用硝硫混酸常压氧化法，把甜菜制成工业品草酸。

Modified calcium aluminate as a purifying agent, with two functions both of coagulability and desaltification, can be produced from industrial waste slag from alumina plant.

利用氧化铝厂工业产的改性铝酸钙净水剂兼有混凝和脱盐两种功能。

Metalliferous ore waste residue and clay were used to prepare one kind of new decolorization adsorption ball and fuchsine dye water sample was taken as processing object.

文章主要是以金属矿、粘土为材料研究制备一种新型脱色吸附球,并以碱性品红染料水样为处理对象。

The paper studied the preparation of bromine from basic Magnesium bromide in the production of maltol and ethyl maltol, the synthesis of bromethyl from bromine, sulfur and alcothol.

研究了以麦芽酚、乙基麦芽酚产中的碱式溴化镁为原料制取溴;以溴、硫和乙醇合成溴乙烷的方法。

This paper describes the technical pracess of the synthesis of cyclopetanone which is prepared by taking the waste residue consisting of 1 imino 2 cyanocyclopentane(ICCP) as a raw material.

介绍了以含1亚氨基2氰基环戊烷(ICCP)的为原料,制备环戊酮的工艺过程。

This paper introduces the formation of by-products in the typical process for sodium hydrosulphite and the waste treatments for the exhaust gas,waste water and waste residue in the route.

介绍了保险粉副产物的成及水、气、的处理工艺,经过一系列的循环综合利用,不仅实现达标排放,还取得了较好的经济。